Continue database creation

.gitignore

@@ -1,7 +1,9 @@
 pkg/
 .go/
 .vscode/
+bin/
 
 config.json
 chromagies
-log.txt
+log.txt
+__debug*

LICENSE.txt

@@ -0,0 +1,674 @@
+GNU GENERAL PUBLIC LICENSE
+                       Version 3, 29 June 2007
+
+ Copyright (C) 2007 Free Software Foundation, Inc. <https://fsf.org/>
+ Everyone is permitted to copy and distribute verbatim copies
+ of this license document, but changing it is not allowed.
+
+                            Preamble
+
+  The GNU General Public License is a free, copyleft license for
+software and other kinds of works.
+
+  The licenses for most software and other practical works are designed
+to take away your freedom to share and change the works.  By contrast,
+the GNU General Public License is intended to guarantee your freedom to
+share and change all versions of a program--to make sure it remains free
+software for all its users.  We, the Free Software Foundation, use the
+GNU General Public License for most of our software; it applies also to
+any other work released this way by its authors.  You can apply it to
+your programs, too.
+
+  When we speak of free software, we are referring to freedom, not
+price.  Our General Public Licenses are designed to make sure that you
+have the freedom to distribute copies of free software (and charge for
+them if you wish), that you receive source code or can get it if you
+want it, that you can change the software or use pieces of it in new
+free programs, and that you know you can do these things.
+
+  To protect your rights, we need to prevent others from denying you
+these rights or asking you to surrender the rights.  Therefore, you have
+certain responsibilities if you distribute copies of the software, or if
+you modify it: responsibilities to respect the freedom of others.
+
+  For example, if you distribute copies of such a program, whether
+gratis or for a fee, you must pass on to the recipients the same
+freedoms that you received.  You must make sure that they, too, receive
+or can get the source code.  And you must show them these terms so they
+know their rights.
+
+  Developers that use the GNU GPL protect your rights with two steps:
+(1) assert copyright on the software, and (2) offer you this License
+giving you legal permission to copy, distribute and/or modify it.
+
+  For the developers' and authors' protection, the GPL clearly explains
+that there is no warranty for this free software.  For both users' and
+authors' sake, the GPL requires that modified versions be marked as
+changed, so that their problems will not be attributed erroneously to
+authors of previous versions.
+
+  Some devices are designed to deny users access to install or run
+modified versions of the software inside them, although the manufacturer
+can do so.  This is fundamentally incompatible with the aim of
+protecting users' freedom to change the software.  The systematic
+pattern of such abuse occurs in the area of products for individuals to
+use, which is precisely where it is most unacceptable.  Therefore, we
+have designed this version of the GPL to prohibit the practice for those
+products.  If such problems arise substantially in other domains, we
+stand ready to extend this provision to those domains in future versions
+of the GPL, as needed to protect the freedom of users.
+
+  Finally, every program is threatened constantly by software patents.
+States should not allow patents to restrict development and use of
+software on general-purpose computers, but in those that do, we wish to
+avoid the special danger that patents applied to a free program could
+make it effectively proprietary.  To prevent this, the GPL assures that
+patents cannot be used to render the program non-free.
+
+  The precise terms and conditions for copying, distribution and
+modification follow.
+
+                       TERMS AND CONDITIONS
+
+  0. Definitions.
+
+  "This License" refers to version 3 of the GNU General Public License.
+
+  "Copyright" also means copyright-like laws that apply to other kinds of
+works, such as semiconductor masks.
+
+  "The Program" refers to any copyrightable work licensed under this
+License.  Each licensee is addressed as "you".  "Licensees" and
+"recipients" may be individuals or organizations.
+
+  To "modify" a work means to copy from or adapt all or part of the work
+in a fashion requiring copyright permission, other than the making of an
+exact copy.  The resulting work is called a "modified version" of the
+earlier work or a work "based on" the earlier work.
+
+  A "covered work" means either the unmodified Program or a work based
+on the Program.
+
+  To "propagate" a work means to do anything with it that, without
+permission, would make you directly or secondarily liable for
+infringement under applicable copyright law, except executing it on a
+computer or modifying a private copy.  Propagation includes copying,
+distribution (with or without modification), making available to the
+public, and in some countries other activities as well.
+
+  To "convey" a work means any kind of propagation that enables other
+parties to make or receive copies.  Mere interaction with a user through
+a computer network, with no transfer of a copy, is not conveying.
+
+  An interactive user interface displays "Appropriate Legal Notices"
+to the extent that it includes a convenient and prominently visible
+feature that (1) displays an appropriate copyright notice, and (2)
+tells the user that there is no warranty for the work (except to the
+extent that warranties are provided), that licensees may convey the
+work under this License, and how to view a copy of this License.  If
+the interface presents a list of user commands or options, such as a
+menu, a prominent item in the list meets this criterion.
+
+  1. Source Code.
+
+  The "source code" for a work means the preferred form of the work
+for making modifications to it.  "Object code" means any non-source
+form of a work.
+
+  A "Standard Interface" means an interface that either is an official
+standard defined by a recognized standards body, or, in the case of
+interfaces specified for a particular programming language, one that
+is widely used among developers working in that language.
+
+  The "System Libraries" of an executable work include anything, other
+than the work as a whole, that (a) is included in the normal form of
+packaging a Major Component, but which is not part of that Major
+Component, and (b) serves only to enable use of the work with that
+Major Component, or to implement a Standard Interface for which an
+implementation is available to the public in source code form.  A
+"Major Component", in this context, means a major essential component
+(kernel, window system, and so on) of the specific operating system
+(if any) on which the executable work runs, or a compiler used to
+produce the work, or an object code interpreter used to run it.
+
+  The "Corresponding Source" for a work in object code form means all
+the source code needed to generate, install, and (for an executable
+work) run the object code and to modify the work, including scripts to
+control those activities.  However, it does not include the work's
+System Libraries, or general-purpose tools or generally available free
+programs which are used unmodified in performing those activities but
+which are not part of the work.  For example, Corresponding Source
+includes interface definition files associated with source files for
+the work, and the source code for shared libraries and dynamically
+linked subprograms that the work is specifically designed to require,
+such as by intimate data communication or control flow between those
+subprograms and other parts of the work.
+
+  The Corresponding Source need not include anything that users
+can regenerate automatically from other parts of the Corresponding
+Source.
+
+  The Corresponding Source for a work in source code form is that
+same work.
+
+  2. Basic Permissions.
+
+  All rights granted under this License are granted for the term of
+copyright on the Program, and are irrevocable provided the stated
+conditions are met.  This License explicitly affirms your unlimited
+permission to run the unmodified Program.  The output from running a
+covered work is covered by this License only if the output, given its
+content, constitutes a covered work.  This License acknowledges your
+rights of fair use or other equivalent, as provided by copyright law.
+
+  You may make, run and propagate covered works that you do not
+convey, without conditions so long as your license otherwise remains
+in force.  You may convey covered works to others for the sole purpose
+of having them make modifications exclusively for you, or provide you
+with facilities for running those works, provided that you comply with
+the terms of this License in conveying all material for which you do
+not control copyright.  Those thus making or running the covered works
+for you must do so exclusively on your behalf, under your direction
+and control, on terms that prohibit them from making any copies of
+your copyrighted material outside their relationship with you.
+
+  Conveying under any other circumstances is permitted solely under
+the conditions stated below.  Sublicensing is not allowed; section 10
+makes it unnecessary.
+
+  3. Protecting Users' Legal Rights From Anti-Circumvention Law.
+
+  No covered work shall be deemed part of an effective technological
+measure under any applicable law fulfilling obligations under article
+11 of the WIPO copyright treaty adopted on 20 December 1996, or
+similar laws prohibiting or restricting circumvention of such
+measures.
+
+  When you convey a covered work, you waive any legal power to forbid
+circumvention of technological measures to the extent such circumvention
+is effected by exercising rights under this License with respect to
+the covered work, and you disclaim any intention to limit operation or
+modification of the work as a means of enforcing, against the work's
+users, your or third parties' legal rights to forbid circumvention of
+technological measures.
+
+  4. Conveying Verbatim Copies.
+
+  You may convey verbatim copies of the Program's source code as you
+receive it, in any medium, provided that you conspicuously and
+appropriately publish on each copy an appropriate copyright notice;
+keep intact all notices stating that this License and any
+non-permissive terms added in accord with section 7 apply to the code;
+keep intact all notices of the absence of any warranty; and give all
+recipients a copy of this License along with the Program.
+
+  You may charge any price or no price for each copy that you convey,
+and you may offer support or warranty protection for a fee.
+
+  5. Conveying Modified Source Versions.
+
+  You may convey a work based on the Program, or the modifications to
+produce it from the Program, in the form of source code under the
+terms of section 4, provided that you also meet all of these conditions:
+
+    a) The work must carry prominent notices stating that you modified
+    it, and giving a relevant date.
+
+    b) The work must carry prominent notices stating that it is
+    released under this License and any conditions added under section
+    7.  This requirement modifies the requirement in section 4 to
+    "keep intact all notices".
+
+    c) You must license the entire work, as a whole, under this
+    License to anyone who comes into possession of a copy.  This
+    License will therefore apply, along with any applicable section 7
+    additional terms, to the whole of the work, and all its parts,
+    regardless of how they are packaged.  This License gives no
+    permission to license the work in any other way, but it does not
+    invalidate such permission if you have separately received it.
+
+    d) If the work has interactive user interfaces, each must display
+    Appropriate Legal Notices; however, if the Program has interactive
+    interfaces that do not display Appropriate Legal Notices, your
+    work need not make them do so.
+
+  A compilation of a covered work with other separate and independent
+works, which are not by their nature extensions of the covered work,
+and which are not combined with it such as to form a larger program,
+in or on a volume of a storage or distribution medium, is called an
+"aggregate" if the compilation and its resulting copyright are not
+used to limit the access or legal rights of the compilation's users
+beyond what the individual works permit.  Inclusion of a covered work
+in an aggregate does not cause this License to apply to the other
+parts of the aggregate.
+
+  6. Conveying Non-Source Forms.
+
+  You may convey a covered work in object code form under the terms
+of sections 4 and 5, provided that you also convey the
+machine-readable Corresponding Source under the terms of this License,
+in one of these ways:
+
+    a) Convey the object code in, or embodied in, a physical product
+    (including a physical distribution medium), accompanied by the
+    Corresponding Source fixed on a durable physical medium
+    customarily used for software interchange.
+
+    b) Convey the object code in, or embodied in, a physical product
+    (including a physical distribution medium), accompanied by a
+    written offer, valid for at least three years and valid for as
+    long as you offer spare parts or customer support for that product
+    model, to give anyone who possesses the object code either (1) a
+    copy of the Corresponding Source for all the software in the
+    product that is covered by this License, on a durable physical
+    medium customarily used for software interchange, for a price no
+    more than your reasonable cost of physically performing this
+    conveying of source, or (2) access to copy the
+    Corresponding Source from a network server at no charge.
+
+    c) Convey individual copies of the object code with a copy of the
+    written offer to provide the Corresponding Source.  This
+    alternative is allowed only occasionally and noncommercially, and
+    only if you received the object code with such an offer, in accord
+    with subsection 6b.
+
+    d) Convey the object code by offering access from a designated
+    place (gratis or for a charge), and offer equivalent access to the
+    Corresponding Source in the same way through the same place at no
+    further charge.  You need not require recipients to copy the
+    Corresponding Source along with the object code.  If the place to
+    copy the object code is a network server, the Corresponding Source
+    may be on a different server (operated by you or a third party)
+    that supports equivalent copying facilities, provided you maintain
+    clear directions next to the object code saying where to find the
+    Corresponding Source.  Regardless of what server hosts the
+    Corresponding Source, you remain obligated to ensure that it is
+    available for as long as needed to satisfy these requirements.
+
+    e) Convey the object code using peer-to-peer transmission, provided
+    you inform other peers where the object code and Corresponding
+    Source of the work are being offered to the general public at no
+    charge under subsection 6d.
+
+  A separable portion of the object code, whose source code is excluded
+from the Corresponding Source as a System Library, need not be
+included in conveying the object code work.
+
+  A "User Product" is either (1) a "consumer product", which means any
+tangible personal property which is normally used for personal, family,
+or household purposes, or (2) anything designed or sold for incorporation
+into a dwelling.  In determining whether a product is a consumer product,
+doubtful cases shall be resolved in favor of coverage.  For a particular
+product received by a particular user, "normally used" refers to a
+typical or common use of that class of product, regardless of the status
+of the particular user or of the way in which the particular user
+actually uses, or expects or is expected to use, the product.  A product
+is a consumer product regardless of whether the product has substantial
+commercial, industrial or non-consumer uses, unless such uses represent
+the only significant mode of use of the product.
+
+  "Installation Information" for a User Product means any methods,
+procedures, authorization keys, or other information required to install
+and execute modified versions of a covered work in that User Product from
+a modified version of its Corresponding Source.  The information must
+suffice to ensure that the continued functioning of the modified object
+code is in no case prevented or interfered with solely because
+modification has been made.
+
+  If you convey an object code work under this section in, or with, or
+specifically for use in, a User Product, and the conveying occurs as
+part of a transaction in which the right of possession and use of the
+User Product is transferred to the recipient in perpetuity or for a
+fixed term (regardless of how the transaction is characterized), the
+Corresponding Source conveyed under this section must be accompanied
+by the Installation Information.  But this requirement does not apply
+if neither you nor any third party retains the ability to install
+modified object code on the User Product (for example, the work has
+been installed in ROM).
+
+  The requirement to provide Installation Information does not include a
+requirement to continue to provide support service, warranty, or updates
+for a work that has been modified or installed by the recipient, or for
+the User Product in which it has been modified or installed.  Access to a
+network may be denied when the modification itself materially and
+adversely affects the operation of the network or violates the rules and
+protocols for communication across the network.
+
+  Corresponding Source conveyed, and Installation Information provided,
+in accord with this section must be in a format that is publicly
+documented (and with an implementation available to the public in
+source code form), and must require no special password or key for
+unpacking, reading or copying.
+
+  7. Additional Terms.
+
+  "Additional permissions" are terms that supplement the terms of this
+License by making exceptions from one or more of its conditions.
+Additional permissions that are applicable to the entire Program shall
+be treated as though they were included in this License, to the extent
+that they are valid under applicable law.  If additional permissions
+apply only to part of the Program, that part may be used separately
+under those permissions, but the entire Program remains governed by
+this License without regard to the additional permissions.
+
+  When you convey a copy of a covered work, you may at your option
+remove any additional permissions from that copy, or from any part of
+it.  (Additional permissions may be written to require their own
+removal in certain cases when you modify the work.)  You may place
+additional permissions on material, added by you to a covered work,
+for which you have or can give appropriate copyright permission.
+
+  Notwithstanding any other provision of this License, for material you
+add to a covered work, you may (if authorized by the copyright holders of
+that material) supplement the terms of this License with terms:
+
+    a) Disclaiming warranty or limiting liability differently from the
+    terms of sections 15 and 16 of this License; or
+
+    b) Requiring preservation of specified reasonable legal notices or
+    author attributions in that material or in the Appropriate Legal
+    Notices displayed by works containing it; or
+
+    c) Prohibiting misrepresentation of the origin of that material, or
+    requiring that modified versions of such material be marked in
+    reasonable ways as different from the original version; or
+
+    d) Limiting the use for publicity purposes of names of licensors or
+    authors of the material; or
+
+    e) Declining to grant rights under trademark law for use of some
+    trade names, trademarks, or service marks; or
+
+    f) Requiring indemnification of licensors and authors of that
+    material by anyone who conveys the material (or modified versions of
+    it) with contractual assumptions of liability to the recipient, for
+    any liability that these contractual assumptions directly impose on
+    those licensors and authors.
+
+  All other non-permissive additional terms are considered "further
+restrictions" within the meaning of section 10.  If the Program as you
+received it, or any part of it, contains a notice stating that it is
+governed by this License along with a term that is a further
+restriction, you may remove that term.  If a license document contains
+a further restriction but permits relicensing or conveying under this
+License, you may add to a covered work material governed by the terms
+of that license document, provided that the further restriction does
+not survive such relicensing or conveying.
+
+  If you add terms to a covered work in accord with this section, you
+must place, in the relevant source files, a statement of the
+additional terms that apply to those files, or a notice indicating
+where to find the applicable terms.
+
+  Additional terms, permissive or non-permissive, may be stated in the
+form of a separately written license, or stated as exceptions;
+the above requirements apply either way.
+
+  8. Termination.
+
+  You may not propagate or modify a covered work except as expressly
+provided under this License.  Any attempt otherwise to propagate or
+modify it is void, and will automatically terminate your rights under
+this License (including any patent licenses granted under the third
+paragraph of section 11).
+
+  However, if you cease all violation of this License, then your
+license from a particular copyright holder is reinstated (a)
+provisionally, unless and until the copyright holder explicitly and
+finally terminates your license, and (b) permanently, if the copyright
+holder fails to notify you of the violation by some reasonable means
+prior to 60 days after the cessation.
+
+  Moreover, your license from a particular copyright holder is
+reinstated permanently if the copyright holder notifies you of the
+violation by some reasonable means, this is the first time you have
+received notice of violation of this License (for any work) from that
+copyright holder, and you cure the violation prior to 30 days after
+your receipt of the notice.
+
+  Termination of your rights under this section does not terminate the
+licenses of parties who have received copies or rights from you under
+this License.  If your rights have been terminated and not permanently
+reinstated, you do not qualify to receive new licenses for the same
+material under section 10.
+
+  9. Acceptance Not Required for Having Copies.
+
+  You are not required to accept this License in order to receive or
+run a copy of the Program.  Ancillary propagation of a covered work
+occurring solely as a consequence of using peer-to-peer transmission
+to receive a copy likewise does not require acceptance.  However,
+nothing other than this License grants you permission to propagate or
+modify any covered work.  These actions infringe copyright if you do
+not accept this License.  Therefore, by modifying or propagating a
+covered work, you indicate your acceptance of this License to do so.
+
+  10. Automatic Licensing of Downstream Recipients.
+
+  Each time you convey a covered work, the recipient automatically
+receives a license from the original licensors, to run, modify and
+propagate that work, subject to this License.  You are not responsible
+for enforcing compliance by third parties with this License.
+
+  An "entity transaction" is a transaction transferring control of an
+organization, or substantially all assets of one, or subdividing an
+organization, or merging organizations.  If propagation of a covered
+work results from an entity transaction, each party to that
+transaction who receives a copy of the work also receives whatever
+licenses to the work the party's predecessor in interest had or could
+give under the previous paragraph, plus a right to possession of the
+Corresponding Source of the work from the predecessor in interest, if
+the predecessor has it or can get it with reasonable efforts.
+
+  You may not impose any further restrictions on the exercise of the
+rights granted or affirmed under this License.  For example, you may
+not impose a license fee, royalty, or other charge for exercise of
+rights granted under this License, and you may not initiate litigation
+(including a cross-claim or counterclaim in a lawsuit) alleging that
+any patent claim is infringed by making, using, selling, offering for
+sale, or importing the Program or any portion of it.
+
+  11. Patents.
+
+  A "contributor" is a copyright holder who authorizes use under this
+License of the Program or a work on which the Program is based.  The
+work thus licensed is called the contributor's "contributor version".
+
+  A contributor's "essential patent claims" are all patent claims
+owned or controlled by the contributor, whether already acquired or
+hereafter acquired, that would be infringed by some manner, permitted
+by this License, of making, using, or selling its contributor version,
+but do not include claims that would be infringed only as a
+consequence of further modification of the contributor version.  For
+purposes of this definition, "control" includes the right to grant
+patent sublicenses in a manner consistent with the requirements of
+this License.
+
+  Each contributor grants you a non-exclusive, worldwide, royalty-free
+patent license under the contributor's essential patent claims, to
+make, use, sell, offer for sale, import and otherwise run, modify and
+propagate the contents of its contributor version.
+
+  In the following three paragraphs, a "patent license" is any express
+agreement or commitment, however denominated, not to enforce a patent
+(such as an express permission to practice a patent or covenant not to
+sue for patent infringement).  To "grant" such a patent license to a
+party means to make such an agreement or commitment not to enforce a
+patent against the party.
+
+  If you convey a covered work, knowingly relying on a patent license,
+and the Corresponding Source of the work is not available for anyone
+to copy, free of charge and under the terms of this License, through a
+publicly available network server or other readily accessible means,
+then you must either (1) cause the Corresponding Source to be so
+available, or (2) arrange to deprive yourself of the benefit of the
+patent license for this particular work, or (3) arrange, in a manner
+consistent with the requirements of this License, to extend the patent
+license to downstream recipients.  "Knowingly relying" means you have
+actual knowledge that, but for the patent license, your conveying the
+covered work in a country, or your recipient's use of the covered work
+in a country, would infringe one or more identifiable patents in that
+country that you have reason to believe are valid.
+
+  If, pursuant to or in connection with a single transaction or
+arrangement, you convey, or propagate by procuring conveyance of, a
+covered work, and grant a patent license to some of the parties
+receiving the covered work authorizing them to use, propagate, modify
+or convey a specific copy of the covered work, then the patent license
+you grant is automatically extended to all recipients of the covered
+work and works based on it.
+
+  A patent license is "discriminatory" if it does not include within
+the scope of its coverage, prohibits the exercise of, or is
+conditioned on the non-exercise of one or more of the rights that are
+specifically granted under this License.  You may not convey a covered
+work if you are a party to an arrangement with a third party that is
+in the business of distributing software, under which you make payment
+to the third party based on the extent of your activity of conveying
+the work, and under which the third party grants, to any of the
+parties who would receive the covered work from you, a discriminatory
+patent license (a) in connection with copies of the covered work
+conveyed by you (or copies made from those copies), or (b) primarily
+for and in connection with specific products or compilations that
+contain the covered work, unless you entered into that arrangement,
+or that patent license was granted, prior to 28 March 2007.
+
+  Nothing in this License shall be construed as excluding or limiting
+any implied license or other defenses to infringement that may
+otherwise be available to you under applicable patent law.
+
+  12. No Surrender of Others' Freedom.
+
+  If conditions are imposed on you (whether by court order, agreement or
+otherwise) that contradict the conditions of this License, they do not
+excuse you from the conditions of this License.  If you cannot convey a
+covered work so as to satisfy simultaneously your obligations under this
+License and any other pertinent obligations, then as a consequence you may
+not convey it at all.  For example, if you agree to terms that obligate you
+to collect a royalty for further conveying from those to whom you convey
+the Program, the only way you could satisfy both those terms and this
+License would be to refrain entirely from conveying the Program.
+
+  13. Use with the GNU Affero General Public License.
+
+  Notwithstanding any other provision of this License, you have
+permission to link or combine any covered work with a work licensed
+under version 3 of the GNU Affero General Public License into a single
+combined work, and to convey the resulting work.  The terms of this
+License will continue to apply to the part which is the covered work,
+but the special requirements of the GNU Affero General Public License,
+section 13, concerning interaction through a network will apply to the
+combination as such.
+
+  14. Revised Versions of this License.
+
+  The Free Software Foundation may publish revised and/or new versions of
+the GNU General Public License from time to time.  Such new versions will
+be similar in spirit to the present version, but may differ in detail to
+address new problems or concerns.
+
+  Each version is given a distinguishing version number.  If the
+Program specifies that a certain numbered version of the GNU General
+Public License "or any later version" applies to it, you have the
+option of following the terms and conditions either of that numbered
+version or of any later version published by the Free Software
+Foundation.  If the Program does not specify a version number of the
+GNU General Public License, you may choose any version ever published
+by the Free Software Foundation.
+
+  If the Program specifies that a proxy can decide which future
+versions of the GNU General Public License can be used, that proxy's
+public statement of acceptance of a version permanently authorizes you
+to choose that version for the Program.
+
+  Later license versions may give you additional or different
+permissions.  However, no additional obligations are imposed on any
+author or copyright holder as a result of your choosing to follow a
+later version.
+
+  15. Disclaimer of Warranty.
+
+  THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY
+APPLICABLE LAW.  EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT
+HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY
+OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO,
+THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+PURPOSE.  THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM
+IS WITH YOU.  SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF
+ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
+
+  16. Limitation of Liability.
+
+  IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
+WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS
+THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY
+GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE
+USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF
+DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD
+PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS),
+EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF
+SUCH DAMAGES.
+
+  17. Interpretation of Sections 15 and 16.
+
+  If the disclaimer of warranty and limitation of liability provided
+above cannot be given local legal effect according to their terms,
+reviewing courts shall apply local law that most closely approximates
+an absolute waiver of all civil liability in connection with the
+Program, unless a warranty or assumption of liability accompanies a
+copy of the Program in return for a fee.
+
+                     END OF TERMS AND CONDITIONS
+
+            How to Apply These Terms to Your New Programs
+
+  If you develop a new program, and you want it to be of the greatest
+possible use to the public, the best way to achieve this is to make it
+free software which everyone can redistribute and change under these terms.
+
+  To do so, attach the following notices to the program.  It is safest
+to attach them to the start of each source file to most effectively
+state the exclusion of warranty; and each file should have at least
+the "copyright" line and a pointer to where the full notice is found.
+
+    <one line to give the program's name and a brief idea of what it does.>
+    Copyright (C) <year>  <name of author>
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+Also add information on how to contact you by electronic and paper mail.
+
+  If the program does terminal interaction, make it output a short
+notice like this when it starts in an interactive mode:
+
+    <program>  Copyright (C) <year>  <name of author>
+    This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
+    This is free software, and you are welcome to redistribute it
+    under certain conditions; type `show c' for details.
+
+The hypothetical commands `show w' and `show c' should show the appropriate
+parts of the General Public License.  Of course, your program's commands
+might be different; for a GUI interface, you would use an "about box".
+
+  You should also get your employer (if you work as a programmer) or school,
+if any, to sign a "copyright disclaimer" for the program, if necessary.
+For more information on this, and how to apply and follow the GNU GPL, see
+<https://www.gnu.org/licenses/>.
+
+  The GNU General Public License does not permit incorporating your program
+into proprietary programs.  If your program is a subroutine library, you
+may consider it more useful to permit linking proprietary applications with
+the library.  If this is what you want to do, use the GNU Lesser General
+Public License instead of this License.  But first, please read
+<https://www.gnu.org/licenses/why-not-lgpl.html>.

README.md

@@ -0,0 +1,18 @@
+# Chromagies
+
+## Database setup
+
+Create database : CREATE DATABASE 'DATABASE_NAME';
+
+Replace DATABASE_NAME with yours.
+
+Create user : CREATE USER 'DATABASE_USER'@'localhost' IDENTIFIED BY 'A_VERY_BAD_PASSWORD'
+
+Replace DATABASE_USER and A_VERY_BAD_PASSWORD by yours.
+
+Give permissions to user : GRANT SELECT, INSERT, UPDATE, DELETE, CREATE, DROP, INDEX, ALTER, CREATE TEMPORARY TABLES, CREATE VIEW, EVENT, TRIGGER, SHOW VIEW, CREATE ROUTINE, ALTER ROUTINE, EXECUTE ON 'DATABASE_NAME'.* TO 'DATABASE_USER'@'localhost';
+
+## Config setup
+
+Start the program once, the "config.json" file will be created. Edit it and replace the "Database" section with your credentials and your database informations.
+

go.mod

@@ -2,4 +2,12 @@ module chromagies
 
 go 1.24.2
 
-require github.com/gorilla/mux v1.8.1
+require (
+	github.com/go-sql-driver/mysql v1.9.2
+	github.com/julienschmidt/httprouter v1.3.0
+)
+
+require (
+	filippo.io/edwards25519 v1.1.0 // indirect
+	github.com/dustin/go-humanize v1.0.1
+)

go.sum

@@ -1,2 +1,8 @@
-github.com/gorilla/mux v1.8.1 h1:TuBL49tXwgrFYWhqrNgrUNEY92u81SPhu7sTdzQEiWY=
+filippo.io/edwards25519 v1.1.0 h1:FNf4tywRC1HmFuKW5xopWpigGjJKiJSV0Cqo0cJWDaA=
-github.com/gorilla/mux v1.8.1/go.mod h1:AKf9I4AEqPTmMytcMc0KkNouC66V3BtZ4qD5fmWSiMQ=
+filippo.io/edwards25519 v1.1.0/go.mod h1:BxyFTGdWcka3PhytdK4V28tE5sGfRvvvRV7EaN4VDT4=
+github.com/dustin/go-humanize v1.0.1 h1:GzkhY7T5VNhEkwH0PVJgjz+fX1rhBrR7pRT3mDkpeCY=
+github.com/dustin/go-humanize v1.0.1/go.mod h1:Mu1zIs6XwVuF/gI1OepvI0qD18qycQx+mFykh5fBlto=
+github.com/go-sql-driver/mysql v1.9.2 h1:4cNKDYQ1I84SXslGddlsrMhc8k4LeDVj6Ad6WRjiHuU=
+github.com/go-sql-driver/mysql v1.9.2/go.mod h1:qn46aNg1333BRMNU69Lq93t8du/dwxI64Gl8i5p1WMU=
+github.com/julienschmidt/httprouter v1.3.0 h1:U0609e9tgbseu3rBINet9P48AI/D3oJs4dN7jwJOQ1U=
+github.com/julienschmidt/httprouter v1.3.0/go.mod h1:JR6WtHb+2LUe8TCKY3cZOxFyyO8IZAc4RVcycCCAKdM=

main.go

@@ -3,6 +3,8 @@ package main
 import (
 	"chromagies/src/api"
 	"chromagies/src/config"
+	"chromagies/src/database"
+	"chromagies/src/profiler"
 	"fmt"
 	"log"
 	"net/http"
@@ -11,10 +13,10 @@ import (
 	"syscall"
 	"time"
 
-	"github.com/gorilla/mux"
+	"github.com/julienschmidt/httprouter"
 )
 
-var router *mux.Router
+var router *httprouter.Router
 var logFile *os.File
 
 func main() {
@@ -28,14 +30,16 @@ func main() {
 	initConfig()
 	startLogger()
 
+	database.Init()
 	initRouter()
-
-	stopTime := time.Now()
-	log.Printf("Server ready in %d microseconds\n", stopTime.Sub(startTime).Microseconds())
-
 	var conf config.Server = (config.GetConfig()).Server
 
-	http.ListenAndServe(fmt.Sprintf("%s:%s", conf.IP, conf.Port), router)
+	var readyTime time.Duration = time.Duration(time.Since(startTime).Microseconds())
+	profiler.Register("Startup", 1, "µs")
+	profiler.Add("Startup", readyTime)
+	log.Printf("Server ready in %d microseconds\n", readyTime)
+
+	http.ListenAndServe(fmt.Sprintf("%s:%d", conf.IP, conf.Port), router)
 	stopServer()
 }
 
@@ -69,19 +73,18 @@ func initConfig() {
 	}
 
 	if err != nil {
-		log.Fatal("Cannot read/write config file !")
+		log.Fatalln("Cannot read/write config file !")
 	}
 }
 
 func initRouter() {
-	router = mux.NewRouter()
+	router = httprouter.New()
 
 	// routeur.NotFoundHandler = TODO
 
 	api.Init(router)
 
-	router.PathPrefix("/static/").Handler(http.StripPrefix("/static/", http.FileServer(http.Dir("./static/"))))
+	router.ServeFiles("/static/*filepath", http.Dir("./static/"))
-
 }
 
 func handleStopSignal() {
@@ -89,6 +92,7 @@ func handleStopSignal() {
 	signal.Notify(sigs, syscall.SIGINT, syscall.SIGTERM)
 	<-sigs
 	close(sigs)
+	fmt.Println()
 	stopServer()
 }
 

src/api/api.go

@@ -1,98 +1,175 @@
 package api
 
 import (
+	"chromagies/src/database"
+	"chromagies/src/profiler"
 	"fmt"
 	"net/http"
+	"runtime"
+	"time"
 
-	"github.com/gorilla/mux"
+	"github.com/dustin/go-humanize"
+	"github.com/julienschmidt/httprouter"
+)
+
+const (
+	profiler_API_PROCESS_REQUEST string = "API Process Request"
 )
 
 var apiRootPath string = "/api/v1"
 
-func Init(router *mux.Router) {
+func Init(router *httprouter.Router) {
 
-	router.HandleFunc(apiRootPath, apiRoot).Methods("GET")
+	profiler.Register(profiler_API_PROCESS_REQUEST, 10000, "µs")
 
-	routerAuth := router.PathPrefix(apiRootPath + "/auth").Subrouter()
+	router.GET("/", apiHandler(apiRoot))
-	routerPage := router.PathPrefix(apiRootPath + "/page").Subrouter()
-	routerUser := router.PathPrefix(apiRootPath + "/user").Subrouter()
-	routerTag := router.PathPrefix(apiRootPath + "/tag").Subrouter()
 
-	routerAuth.HandleFunc("", apiAuth)
+	router.GET(apiRootPath+"/auth", apiHandler(apiAuth))
-	routerAuth.HandleFunc("/login", apiAuthLogin)
+	router.GET(apiRootPath+"/auth/login", apiHandler(apiAuthLogin))
-	routerAuth.HandleFunc("/logout", apiAuthLogout)
+	router.GET(apiRootPath+"/auth/logout", apiHandler(apiAuthLogout))
 
-	routerPage.HandleFunc("", apiPage)
+	router.GET(apiRootPath+"/page", apiHandler(apiPage))
-	routerPage.HandleFunc("/{folder}", apiPageFolder)
+	router.GET(apiRootPath+"/page/:folder", apiHandler(apiPageFolder))
-	routerPage.HandleFunc("/{folder}/{page}", apiPageFolderPage)
+	router.GET(apiRootPath+"/page/:folder/:page", apiHandler(apiPageFolderPage))
-	routerPage.HandleFunc("/{folder}/{page}/content", apiPageFolderPageContent)
+	router.GET(apiRootPath+"/page/:folder/:page/content", apiHandler(apiPageFolderPageContent))
 
-	routerUser.HandleFunc("", apiUser)
+	router.GET(apiRootPath+"/user", apiHandler(apiUser))
-	routerUser.HandleFunc("/{name}", apiUserName)
+	router.GET(apiRootPath+"/user/:name", apiHandler(apiUserName))
 
-	routerTag.HandleFunc("", apiTag)
+	router.GET(apiRootPath+"/tag", apiHandler(apiTag))
-	routerTag.HandleFunc("/{name}", apiTagName)
+	router.GET(apiRootPath+"/tag/:name", apiHandler(apiTagName))
+
+	router.GET(apiRootPath+"/debug/profiler", apiHandler(apiDebugProfiler))
+	router.GET(apiRootPath+"/debug/profiler/:name", apiHandler(apiDebugProfilerName))
+
+	router.GET(apiRootPath+"/debug/database/reset", apiHandler(apiDebugDatabaseReset))
+
+	router.GET(apiRootPath+"/debug/memory/get", apiHandler(apiDebugMemoryGet))
+	router.GET(apiRootPath+"/debug/memory/gc", apiHandler(apiDebugMemoryGC))
+
+}
+
+func apiHandler(h httprouter.Handle) httprouter.Handle {
+	return func(w http.ResponseWriter, r *http.Request, ps httprouter.Params) {
+		tStart := time.Now()
+		h(w, r, ps)
+		profiler.Add(profiler_API_PROCESS_REQUEST, time.Duration(time.Since(tStart).Microseconds()))
+	}
 }
 
 // API ROOT
 
-func apiRoot(w http.ResponseWriter, r *http.Request) {
+func apiRoot(w http.ResponseWriter, r *http.Request, _ httprouter.Params) {
+	database.ExecuteStoredRoutine("test")
 	fmt.Fprintf(w, "API ROOT")
 }
 
 // API Auth
 
-func apiAuth(w http.ResponseWriter, r *http.Request) {
+func apiAuth(w http.ResponseWriter, r *http.Request, _ httprouter.Params) {
 	fmt.Fprintf(w, "API Auth")
 }
 
-func apiAuthLogin(w http.ResponseWriter, r *http.Request) {
+func apiAuthLogin(w http.ResponseWriter, r *http.Request, _ httprouter.Params) {
 	fmt.Fprintf(w, "API Auth Login")
 }
 
-func apiAuthLogout(w http.ResponseWriter, r *http.Request) {
+func apiAuthLogout(w http.ResponseWriter, r *http.Request, _ httprouter.Params) {
 	fmt.Fprintf(w, "API Auth Logout")
 }
 
 // API Page
 
-func apiPage(w http.ResponseWriter, r *http.Request) {
+func apiPage(w http.ResponseWriter, r *http.Request, _ httprouter.Params) {
 	fmt.Fprintf(w, "API Page")
 }
 
-func apiPageFolder(w http.ResponseWriter, r *http.Request) {
+func apiPageFolder(w http.ResponseWriter, r *http.Request, params httprouter.Params) {
-	vars := mux.Vars(r)
+	fmt.Fprintf(w, "API Page Folder(%s)", params.ByName("page"))
-	fmt.Fprintf(w, "API Page Folder(%s)", vars["folder"])
 }
 
-func apiPageFolderPage(w http.ResponseWriter, r *http.Request) {
+func apiPageFolderPage(w http.ResponseWriter, r *http.Request, params httprouter.Params) {
-	vars := mux.Vars(r)
+	fmt.Fprintf(w, "API Page Folder(%s) Page(%s)", params.ByName("folder"), params.ByName("page"))
-	fmt.Fprintf(w, "API Page Folder(%s) Page(%s)", vars["folder"], vars["page"])
 }
 
-func apiPageFolderPageContent(w http.ResponseWriter, r *http.Request) {
+func apiPageFolderPageContent(w http.ResponseWriter, r *http.Request, params httprouter.Params) {
-	vars := mux.Vars(r)
+	fmt.Fprintf(w, "API Page Folder(%s) Page(%s) Content", params.ByName("folder"), params.ByName("page"))
-	fmt.Fprintf(w, "API Page Folder(%s) Page(%s) Content", vars["folder"], vars["page"])
 }
 
 // API User
 
-func apiUser(w http.ResponseWriter, r *http.Request) {
+func apiUser(w http.ResponseWriter, r *http.Request, _ httprouter.Params) {
 	fmt.Fprintf(w, "API User")
 }
 
-func apiUserName(w http.ResponseWriter, r *http.Request) {
+func apiUserName(w http.ResponseWriter, r *http.Request, params httprouter.Params) {
-	vars := mux.Vars(r)
+	fmt.Fprintf(w, "API User Name(%s)", params.ByName("page"))
-	fmt.Fprintf(w, "API User Name(%s)", vars["name"])
 }
 
 // API Tag
 
-func apiTag(w http.ResponseWriter, r *http.Request) {
+func apiTag(w http.ResponseWriter, r *http.Request, _ httprouter.Params) {
 	fmt.Fprintf(w, "API Tag")
 }
 
-func apiTagName(w http.ResponseWriter, r *http.Request) {
+func apiTagName(w http.ResponseWriter, r *http.Request, params httprouter.Params) {
-	vars := mux.Vars(r)
+	fmt.Fprintf(w, "API Tag Name(%s)", params.ByName("page"))
-	fmt.Fprintf(w, "API Tag Name(%s)", vars["name"])
+}
+
+// API Debug Profiler
+
+func apiDebugProfiler(w http.ResponseWriter, r *http.Request, _ httprouter.Params) {
+	var entries []string
+	profiler.GetAll(&entries)
+
+	for i := range entries {
+		var entry string = entries[i]
+		fmt.Fprintf(w, "API Debug Profiler(%s)\n\n%s\n\n", entry, string(profiler.Get(entry).ToString()))
+	}
+}
+
+func apiDebugProfilerName(w http.ResponseWriter, r *http.Request, params httprouter.Params) {
+	fmt.Fprintf(w, "API Debug Profiler(%s)\n%s", params.ByName("page"), string(profiler.Get(params.ByName("page")).ToString()))
+}
+
+// API Debug Database
+
+func apiDebugDatabaseReset(w http.ResponseWriter, r *http.Request, _ httprouter.Params) {
+	setHeaderStream(w)
+	fmt.Fprintf(w, "Destroying Database...\n")
+	w.(http.Flusher).Flush()
+	database.DestroyDatabase()
+	fmt.Fprintf(w, "Init Database...\n")
+	w.(http.Flusher).Flush()
+	database.UpdateDatabaseStructure()
+	fmt.Fprintf(w, "Done")
+}
+
+// API Debug Memory Get
+
+func apiDebugMemoryGet(w http.ResponseWriter, r *http.Request, _ httprouter.Params) {
+	var m runtime.MemStats
+	runtime.ReadMemStats(&m)
+	fmt.Fprintf(w, "Alloc = %s", humanize.IBytes(m.Alloc))
+	fmt.Fprintf(w, "\tTotalAlloc = %s", humanize.IBytes(m.TotalAlloc))
+	fmt.Fprintf(w, "\tSys = %s", humanize.IBytes(m.Sys))
+	fmt.Fprintf(w, "\tNumGC = %v\n", m.NumGC)
+}
+
+// API Debug Memory GarbageCollector
+
+func apiDebugMemoryGC(w http.ResponseWriter, r *http.Request, _ httprouter.Params) {
+	runtime.GC()
+	w.Header().Set("Location", apiRootPath+"/debug/memory/get")
+	w.WriteHeader(http.StatusSeeOther)
+}
+
+// Utils
+
+func setHeaderStream(w http.ResponseWriter) {
+	w.Header().Set("Access-Control-Allow-Origin", "*")
+	w.Header().Set("Access-Control-Expose-Headers", "Content-Type")
+	w.Header().Set("Content-Type", "text/event-stream")
+	w.Header().Set("Cache-Control", "no-cache")
+	w.Header().Set("Connection", "keep-alive")
 }

src/config/config.go

@@ -10,26 +10,31 @@ const CONFIG_FILE_NAME string = "./config.json"
 const CONFIG_FILE_DEFAULT_CONF string = `{
     "Database": {
         "Host": "localhost",
-        "Port": "3306",
+        "Port": 3306,
         "Database": "Chromagies",
         "User": "chromagies_user",
-        "Password": "12345678"
+        "Password": "12345678",
+        "RetriesOnError": 5,
+        "TimeBetweenRetriesMs": 100
     },
 
     "Logger": {
         "Output": "./log.txt"
     },
     "Server": {
-        "Port": "12345"
+        "IP": "0.0.0.0",
+        "Port": 12345
     }
 }`
 
 type Database struct {
-	Host     string
+	Host                 string
-	Port     string
+	Port                 uint16
-	Database string
+	Database             string
-	User     string
+	User                 string
-	Password string
+	Password             string
+	RetriesOnError       uint16
+	TimeBetweenRetriesMs uint16
 }
 
 type Logger struct {
@@ -38,7 +43,7 @@ type Logger struct {
 
 type Server struct {
 	IP   string
-	Port string
+	Port uint16
 }
 
 type Config struct {

src/database/database.go

@@ -2,29 +2,936 @@ package database
 
 import (
 	"chromagies/src/config"
+	"chromagies/src/profiler"
 	"database/sql"
 	"fmt"
+	"log"
+	"strings"
+	"time"
+
+	_ "github.com/go-sql-driver/mysql"
 )
 
-var db *sql.DB
+const (
-var dbConfig config.Database
+	profiler_DATABASE_CONNECT string = "Database Connect"
+	profiler_DATABASE_QUERY   string = "Database Query"
+)
+
+const (
+	database_ROUTINE_TYPE_PROCEDURE uint8 = 1
+	database_ROUTINE_TYPE_FUNCTION  uint8 = 2
+)
+
+type databaseEnumIndexType string
+
+const (
+	database_ENUM_INDEX_PRIMARY databaseEnumIndexType = "PRIMARY"
+	database_ENUM_INDEX_UNIQUE  databaseEnumIndexType = "UNIQUE"
+)
+
+type columsDefinition struct {
+	Name          string
+	Type          string
+	Default       any
+	IsNullable    bool
+	AutoIncrement bool
+	Charset       any
+	Collation     any
+	Table         string
+	Primary       bool
+}
+
+type indexDefinition struct {
+	Type    databaseEnumIndexType
+	Name    string
+	Table   string
+	Columns []string
+}
+
+type foreignKeyDefinition struct {
+	Name             string
+	Table            string
+	ColumnName       string
+	PointingToTable  string
+	PointingToColumn string
+	UpdateRule       string
+	DeleteRule       string
+}
+
+type tableDefinition struct {
+	Name    string
+	Columns []columsDefinition
+}
+
+type storedRoutineParameterDefinition struct {
+	Name       string
+	Type       string
+	IsNullable bool
+	Charset    any
+	Collation  any
+}
+
+type storedFunctionDefinition struct {
+	Name       string
+	Parameters []storedRoutineParameterDefinition
+	Return     storedRoutineParameterDefinition
+	Command    string
+}
+
+type storedProcedureDefinition struct {
+	Name       string
+	Parameters []storedRoutineParameterDefinition
+	Command    string
+}
+
+type databaseDefinition struct {
+	Tables           []tableDefinition
+	Indexes          []indexDefinition
+	ForeignKeys      []foreignKeyDefinition
+	StoredProcedures []storedProcedureDefinition
+	StoredFunctions  []storedFunctionDefinition
+}
+
+var databaseStructure databaseDefinition = databaseDefinition{
+	Tables: []tableDefinition{
+		{
+			Name: "user",
+			Columns: []columsDefinition{
+				{
+					Name:          "id",
+					Type:          "int(11)",
+					IsNullable:    false,
+					AutoIncrement: true,
+					Primary:       true,
+				},
+				{
+					Name:       "name",
+					Type:       "varchar(256)",
+					IsNullable: false,
+					Charset:    "utf8mb4",
+					Collation:  "utf8mb4_unicode_ci",
+				},
+				{
+					Name:       "password",
+					Type:       "varchar(256)",
+					IsNullable: false,
+					Charset:    "utf8mb4",
+					Collation:  "utf8mb4_bin",
+				},
+				{
+					Name:       "password_salt",
+					Type:       "varchar(256)",
+					IsNullable: false,
+					Charset:    "utf8mb4",
+					Collation:  "utf8mb4_bin",
+				},
+				{
+					Name:       "permission_level",
+					Type:       "enum('ADMIN', 'MODERATOR', 'USER')",
+					Default:    "'USER'",
+					IsNullable: false,
+					Charset:    nil,
+				},
+				{
+					Name:       "email",
+					Type:       "varchar(256)",
+					IsNullable: true,
+					Default:    "NULL",
+					Charset:    "utf8mb4",
+					Collation:  "utf8mb4_bin",
+				},
+			},
+		},
+		{
+			Name: "folder",
+			Columns: []columsDefinition{
+				{
+					Name:          "id",
+					Type:          "int(11)",
+					IsNullable:    false,
+					AutoIncrement: true,
+					Primary:       true,
+				},
+				{
+					Name:       "name",
+					Type:       "varchar(64)",
+					IsNullable: false,
+					Charset:    "utf8mb4",
+					Collation:  "utf8mb4_unicode_ci",
+				},
+			},
+		},
+		{
+			Name: "tag",
+			Columns: []columsDefinition{
+				{
+					Name:          "id",
+					Type:          "int(11)",
+					IsNullable:    false,
+					AutoIncrement: true,
+					Primary:       true,
+				},
+				{
+					Name:       "name",
+					Type:       "varchar(64)",
+					IsNullable: false,
+					Charset:    "utf8mb4",
+					Collation:  "utf8mb4_unicode_ci",
+				},
+			},
+		},
+		{
+			Name: "website",
+			Columns: []columsDefinition{
+				{
+					Name:          "id",
+					Type:          "int(11)",
+					IsNullable:    false,
+					AutoIncrement: true,
+					Primary:       true,
+				},
+				{
+					Name:       "name",
+					Type:       "varchar(256)",
+					IsNullable: false,
+					Charset:    "utf8mb4",
+					Collation:  "utf8mb4_unicode_ci",
+				},
+				{
+					Name:       "content",
+					Type:       "longtext",
+					IsNullable: true,
+					Default:    "NULL",
+					Charset:    "utf8mb4",
+					Collation:  "utf8mb4_bin",
+				},
+				{
+					Name:       "description",
+					Type:       "longtext",
+					IsNullable: true,
+					Default:    "NULL",
+					Charset:    "utf8mb4",
+					Collation:  "utf8mb4_bin",
+				},
+				{
+					Name:       "folder_id",
+					Type:       "int(11)",
+					IsNullable: false,
+				},
+				{
+					Name:       "date",
+					Type:       "datetime",
+					IsNullable: false,
+					Default:    "current_timestamp()",
+				},
+				{
+					Name:       "title",
+					Type:       "varchar(256)",
+					IsNullable: false,
+					Charset:    "utf8mb4",
+					Collation:  "utf8mb4_unicode_ci",
+				},
+			},
+		},
+		{
+			Name: "tags_websites",
+			Columns: []columsDefinition{
+				{
+					Name:       "tag_id",
+					Type:       "int(11)",
+					IsNullable: false,
+					Primary:    true,
+				},
+				{
+					Name:       "website_id",
+					Type:       "int(11)",
+					IsNullable: false,
+					Primary:    true,
+				},
+				{
+					Name:       "value",
+					Type:       "varchar(64)",
+					IsNullable: false,
+					Charset:    "utf8mb4",
+					Collation:  "utf8mb4_unicode_ci",
+				},
+			},
+		},
+	},
+	Indexes: []indexDefinition{
+		// PRIMARY KEYS
+		/*
+			{
+				Name:  "",
+				Type:  database_ENUM_INDEX_PRIMARY,
+				Table: "user",
+				Columns: []string{
+					"id",
+				},
+			},
+			{
+				Name:  "",
+				Type:  database_ENUM_INDEX_PRIMARY,
+				Table: "folder",
+				Columns: []string{
+					"id",
+				},
+			},
+			{
+				Name:  "",
+				Type:  database_ENUM_INDEX_PRIMARY,
+				Table: "tag",
+				Columns: []string{
+					"id",
+				},
+			},
+			{
+				Name:  "",
+				Type:  database_ENUM_INDEX_PRIMARY,
+				Table: "website",
+				Columns: []string{
+					"id",
+				},
+			},
+			{
+				Name:  "",
+				Type:  database_ENUM_INDEX_PRIMARY,
+				Table: "tags_websites",
+				Columns: []string{
+					"tag_id",
+					"website_id",
+				},
+			},
+		*/
+
+		// UNIQUE KEYS
+
+		{
+			Name:  "UNIQUE_user_name",
+			Type:  database_ENUM_INDEX_UNIQUE,
+			Table: "user",
+			Columns: []string{
+				"name",
+			},
+		},
+		{
+			Name:  "UNIQUE_website_name_folder",
+			Type:  database_ENUM_INDEX_UNIQUE,
+			Table: "website",
+			Columns: []string{
+				"name",
+				"folder_id",
+			},
+		},
+	},
+	ForeignKeys: []foreignKeyDefinition{
+		{
+			Name:             "FK_tags_websites__tag_id",
+			Table:            "tags_websites",
+			ColumnName:       "tag_id",
+			PointingToTable:  "tag",
+			PointingToColumn: "id",
+			UpdateRule:       "CASCADE",
+			DeleteRule:       "CASCADE",
+		},
+		{
+			Name:             "FK_tags_websites__website_id",
+			Table:            "tags_websites",
+			ColumnName:       "website_id",
+			PointingToTable:  "website",
+			PointingToColumn: "id",
+			UpdateRule:       "CASCADE",
+			DeleteRule:       "CASCADE",
+		},
+	},
+	StoredProcedures: []storedProcedureDefinition{
+		{
+			Name:    "ListUsers",
+			Command: "SELECT id, name, permission_level FROM user;",
+		},
+	},
+	StoredFunctions: []storedFunctionDefinition{
+		{
+			Name: "CreateUser",
+			Parameters: []storedRoutineParameterDefinition{
+				{
+					Name:      "f_user_name",
+					Type:      "VARCHAR(256)",
+					Charset:   "utf8mb4",
+					Collation: "utf8mb4_unicode_ci",
+				},
+				{
+					Name:      "f_user_password",
+					Type:      "VARCHAR(256)",
+					Charset:   "utf8mb4",
+					Collation: "utf8mb4_unicode_ci",
+				},
+			},
+			Return: storedRoutineParameterDefinition{
+				Type: "INT(11)",
+			},
+			Command: `
+DECLARE f_user_id INT(11);
+DECLARE f_salt VARCHAR(32);
+DECLARE f_password VARCHAR(256);
+DECLARE f_user VARCHAR(256);
+
+SELECT TO_BASE64(RANDOM_BYTES(16)) INTO f_salt;
+SELECT SHA2(CONCAT(LOWER(f_user_name), f_user_password, f_salt), 512) INTO f_password;
+
+INSERT INTO user(name, password, password_salt) VALUES (f_user_name, f_password, f_salt);
+
+SELECT LAST_INSERT_ID() INTO f_user_id;
+
+RETURN f_user_id;`,
+		},
+	},
+}
+
 var dbPath string
+var dbConfig config.Database
+var isInit bool
+var storedRoutines map[string]uint8
+var db *sql.DB
 
-func Init(conf config.Config) {
+func Init() {
-	dbConfig = conf.Database
+	if isInit {
-	dbPath = fmt.Sprintf("%s:%s@(%s:%d)/%s?parseTime=true", dbConfig.Host, dbConfig.Password, dbConfig.Host, dbConfig.Port, dbConfig.Database)
+		return
+	}
+
+	dbConfig = config.GetConfig().Database
+	dbPath = fmt.Sprintf("%s:%s@(%s:%d)/%s", dbConfig.User, dbConfig.Password, dbConfig.Host, dbConfig.Port, dbConfig.Database)
+
+	profiler.Register(profiler_DATABASE_CONNECT, 200, "µs")
+	profiler.Register(profiler_DATABASE_QUERY, 4000, "µs")
+
+	isInit = true
+	initDatabaseStructure()
 }
 
-func openDB() {
+func connect() {
 	var err error
+	log.Printf("Connecting to database %s at %s:%d as %s\n", dbConfig.Database, dbConfig.Host, dbConfig.Port, dbConfig.User)
 
-	if db != nil {
+	tStart := time.Now()
-		db.Close()
+	for i := range dbConfig.RetriesOnError {
-		db = nil
+		db, err = sql.Open("mysql", dbPath)
+		if err == nil {
+			break
+		}
+		log.Printf("Error while connecting the database [%d/%d] : %s\n", i+1, dbConfig.RetriesOnError, err)
+		if i+1 == dbConfig.RetriesOnError {
+			break
+		}
+		time.Sleep((time.Duration)(dbConfig.TimeBetweenRetriesMs) * time.Millisecond)
 	}
 
-	db, err = sql.Open("mysql", dbPath)
 	if err != nil {
+		log.Fatalln("Cannot connect to database !")
+	}
 
+	db.SetConnMaxLifetime(time.Minute * 1)
+	db.SetMaxOpenConns(100)
+	db.SetMaxIdleConns(100)
+
+	ping()
+
+	profiler.Add(profiler_DATABASE_CONNECT, time.Duration(time.Since(tStart).Microseconds()))
+}
+
+func ExecuteStoredRoutine(name string, args ...any) {
+	if !isInit {
+		return
+	}
+	if storedRoutines == nil {
+		fetchStoredRoutines()
+	}
+
+	var exist bool
+	var routineType uint8
+	routineType, exist = storedRoutines[name]
+	if !exist {
+		return
+	}
+
+	switch routineType {
+	case database_ROUTINE_TYPE_PROCEDURE:
+		callStoredProcedure(name, args...)
+	case database_ROUTINE_TYPE_FUNCTION:
+		callStoredFunction(name, args...)
+	}
+}
+
+func ping() {
+	var err error
+	for i := range dbConfig.RetriesOnError {
+		err = db.Ping()
+		if err == nil {
+			break
+		}
+		log.Printf("Error while pinging the database [%d/%d] : %s\n", i+1, dbConfig.RetriesOnError, err)
+		if i+1 == dbConfig.RetriesOnError {
+			break
+		}
+		time.Sleep((time.Duration)(dbConfig.TimeBetweenRetriesMs) * time.Millisecond)
+	}
+
+	if err != nil {
+		log.Fatalln("Cannot ping the database !")
+	}
+}
+
+func executeQuery(query string, args ...any) *sql.Rows {
+	if !isInit {
+		return nil
+	}
+	if db == nil {
+		connect()
+	}
+
+	var err error
+	var rows *sql.Rows
+	tStart := time.Now()
+	for i := range dbConfig.RetriesOnError {
+		rows, err = db.Query(query, args...)
+		if err == nil {
+			break
+		}
+		log.Printf("Error while querying the database [%d/%d] : %s\n", i+1, dbConfig.RetriesOnError, err)
+		if i+1 == dbConfig.RetriesOnError {
+			break
+		}
+		time.Sleep((time.Duration)(dbConfig.TimeBetweenRetriesMs) * time.Millisecond)
+		ping()
+	}
+	profiler.Add(profiler_DATABASE_QUERY, time.Duration(time.Since(tStart).Microseconds()))
+
+	if err != nil {
+		log.Printf("Cannot query the database ! Query : %s", query)
+		log.Fatalln("With args :", args)
+	}
+
+	return rows
+}
+
+func executeExec(query string, args ...any) sql.Result {
+	if !isInit {
+		return nil
+	}
+	if db == nil {
+		connect()
+	}
+
+	var err error
+	var result sql.Result
+	tStart := time.Now()
+	for i := range dbConfig.RetriesOnError {
+		result, err = db.Exec(query, args...)
+		if err == nil {
+			break
+		}
+		log.Printf("Error while executing on the database [%d/%d] : %s\n", i+1, dbConfig.RetriesOnError, err)
+		if i+1 == dbConfig.RetriesOnError {
+			break
+		}
+		time.Sleep((time.Duration)(dbConfig.TimeBetweenRetriesMs) * time.Millisecond)
+		ping()
+	}
+	profiler.Add(profiler_DATABASE_QUERY, time.Duration(time.Since(tStart).Microseconds()))
+
+	if err != nil {
+		log.Printf("Cannot execute on the database ! Command : %s", query)
+		log.Fatalln("With args : ", args)
+	}
+
+	return result
+}
+
+func fetchStoredRoutines() {
+	storedRoutines = nil
+	var rows *sql.Rows = executeQuery("SELECT ROUTINE_NAME, ROUTINE_TYPE FROM information_schema.ROUTINES WHERE ROUTINE_SCHEMA=?;", dbConfig.Database)
+	if rows != nil {
+		storedRoutines = make(map[string]uint8, 0)
+		defer rows.Close()
+		for rows.Next() {
+			var resName, resType string
+			rows.Scan(&resName, &resType)
+			switch resType {
+			case "PROCEDURE":
+				storedRoutines[resName] = database_ROUTINE_TYPE_PROCEDURE
+			case "FUNCTION":
+				storedRoutines[resName] = database_ROUTINE_TYPE_FUNCTION
+			}
+		}
+	}
+	fmt.Print("ROUTINES : ")
+	fmt.Println(storedRoutines)
+}
+
+func callStoredProcedure(name string, args ...any) {
+	var query string
+	if len(args) == 0 {
+		query = fmt.Sprintf("CALL %s()", name)
+	} else if len(args) == 1 {
+		query = fmt.Sprintf("CALL %s(?)", name)
+	} else {
+		query = strings.Repeat(", ?", len(args)-1)
+		query = fmt.Sprintf("CALL %s(?%s)", name, query)
+	}
+
+	var rows *sql.Rows = executeQuery(query, args...)
+	defer rows.Close()
+
+	for rows.Next() {
+		var res string
+		rows.Scan(&res)
+		log.Println(res)
+	}
+}
+
+func callStoredFunction(name string, args ...any) {
+	var query string
+	if len(args) == 0 {
+		query = fmt.Sprintf("SELECT %s()", name)
+	} else if len(args) == 1 {
+		query = fmt.Sprintf("SELECT %s(?)", name)
+	} else {
+		query = strings.Repeat(", ?", len(args)-1)
+		query = fmt.Sprintf("SELECT %s(?%s)", name, query)
+	}
+
+	var rows *sql.Rows = executeQuery(query, args...)
+	defer rows.Close()
+
+	for rows.Next() {
+		var res string
+		rows.Scan(&res)
+		log.Println(res)
+	}
+}
+
+func fetchTables() []string {
+	var rows *sql.Rows = executeQuery("SHOW TABLES;")
+	//var rows *sql.Rows = executeQuery("SELECT TABLE_NAME FROM information_schema.TABLES WHERE TABLE_SCHEMA=?;", dbConfig.Database)
+	var tables []string = make([]string, 0)
+	if rows != nil {
+		defer rows.Close()
+		for rows.Next() {
+			var resName string
+			rows.Scan(&resName)
+			tables = append(tables, resName)
+		}
+	}
+	return tables
+}
+
+func fetchColumns(table string) []columsDefinition {
+	var rows *sql.Rows = executeQuery("SELECT COLUMN_NAME, COLUMN_TYPE, COLUMN_DEFAULT, IS_NULLABLE, CHARACTER_SET_NAME, COLLATION_NAME FROM information_schema.COLUMNS WHERE TABLE_SCHEMA=? AND TABLE_NAME=?;", dbConfig.Database, table)
+	var columns []columsDefinition = make([]columsDefinition, 0)
+	if rows != nil {
+		defer rows.Close()
+		for rows.Next() {
+			var resName, resType, resDefault, resNullable, resCharset, resCollation string
+			rows.Scan(&resName, &resType, &resDefault, &resNullable, &resCharset, &resCollation)
+			columns = append(columns, columsDefinition{
+				Name:       resName,
+				Type:       resType,
+				Default:    resDefault,
+				IsNullable: resNullable == "YES",
+				Charset:    resCharset,
+				Collation:  resCollation,
+				Table:      table,
+			})
+		}
+	}
+	return columns
+}
+
+func fetchIndexes() []indexDefinition {
+	// SELECT * FROM STATISTICS as S INNER JOIN TABLE_CONSTRAINTS as TC ON TC.TABLE_SCHEMA = S.TABLE_SCHEMA AND TC.CONSTRAINT_NAME = S.INDEX_NAME AND TC.TABLE_NAME = S.TABLE_NAME WHERE S.TABLE_SCHEMA = "RPG";
+	// SELECT S.COLUMN_NAME as COLUMN_NAME, S.INDEX_NAME AS INDEX_NAME, TC.CONSTRAINT_TYPE AS CONSTRAINT_TYPE FROM STATISTICS as S INNER JOIN TABLE_CONSTRAINTS as TC ON TC.TABLE_SCHEMA = S.TABLE_SCHEMA AND TC.CONSTRAINT_NAME = S.INDEX_NAME AND TC.TABLE_NAME = S.TABLE_NAME WHERE S.TABLE_SCHEMA = "RPG" AND S.TABLE_NAME = "folders" AND TC.CONSTRAINT_TYPE IN("UNIQUE", "PRIMARY KEY");
+
+	// Add PRIMARY : ALTER TABLE <table> ADD CONSTRAINT PRIMARY KEY(<columns>);
+	// Add UNIQUE : ALTER TABLE <table> ADD CONSTRAINT <constraint_name> UNIQUE(<columns>);
+
+	var rows *sql.Rows = executeQuery("SELECT S.COLUMN_NAME as COLUMN_NAME, S.INDEX_NAME AS INDEX_NAME, TC.CONSTRAINT_TYPE AS CONSTRAINT_TYPE, S.TABLE_NAME AS TABLE_NAME FROM information_schema.STATISTICS as S INNER JOIN information_schema.TABLE_CONSTRAINTS as TC ON TC.TABLE_SCHEMA = S.TABLE_SCHEMA AND TC.CONSTRAINT_NAME = S.INDEX_NAME AND TC.TABLE_NAME = S.TABLE_NAME WHERE S.TABLE_SCHEMA = ? AND TC.CONSTRAINT_TYPE IN(\"UNIQUE\", \"PRIMARY KEY\");", dbConfig.Database)
+	var indexes []indexDefinition = make([]indexDefinition, 0)
+	if rows != nil {
+		defer rows.Close()
+		for rows.Next() {
+			var resColumn, resIndex, resType, resTable string
+			rows.Scan(&resColumn, &resIndex, &resType, &resTable)
+			var index indexDefinition = indexDefinition{
+				Table:   resTable,
+				Name:    resIndex,
+				Type:    database_ENUM_INDEX_PRIMARY,
+				Columns: []string{resColumn},
+			}
+			if resType == "UNIQUE" {
+				index.Type = database_ENUM_INDEX_UNIQUE
+			}
+			indexes = append(indexes, index)
+		}
+	}
+	return indexes
+}
+
+func fetchForeignKeys() []foreignKeyDefinition {
+
+	// ADD ALTER TABLE <table> ADD CONSTRAINT <constraint_name> FOREIGN KEY(<column>) REFERENCES <ref_table>(<ref_column>) ON DELETE <CASCADE / SET NULL> UPDATE <CASCADE / SET NULL>;
+
+	// SELECT RC.CONSTRAINT_NAME as CONTRAINT_NAME, KCU.TABLE_NAME, KCU.COLUMN_NAME, KCU.REFERENCED_TABLE_NAME, KCU.REFERENCED_COLUMN_NAME, RC.UPDATE_RULE, RC.DELETE_RULE FROM REFERENTIAL_CONSTRAINTS AS RC INNER JOIN KEY_COLUMN_USAGE AS KCU ON KCU.CONSTRAINT_NAME = RC.CONSTRAINT_NAME WHERE KCU.TABLE_SCHEMA = "RPG";
+	var rows *sql.Rows = executeQuery("SELECT RC.CONSTRAINT_NAME as CONTRAINT_NAME, KCU.TABLE_NAME, KCU.COLUMN_NAME, KCU.REFERENCED_TABLE_NAME, KCU.REFERENCED_COLUMN_NAME, RC.UPDATE_RULE, RC.DELETE_RULE FROM information_schema.REFERENTIAL_CONSTRAINTS AS RC INNER JOIN information_schema.KEY_COLUMN_USAGE AS KCU ON KCU.CONSTRAINT_NAME = RC.CONSTRAINT_NAME WHERE KCU.TABLE_SCHEMA = ?;", dbConfig.Database)
+	var foreignKeys []foreignKeyDefinition = make([]foreignKeyDefinition, 0)
+	if rows != nil {
+		defer rows.Close()
+		for rows.Next() {
+			var resName, resTable, resColumn, resRefTable, resRefColumn, resUpdate, resDelete string
+			rows.Scan(&resName, &resTable, &resColumn, &resRefTable, &resRefColumn, &resUpdate, &resDelete)
+			var fk foreignKeyDefinition = foreignKeyDefinition{
+				Name:             resName,
+				Table:            resTable,
+				ColumnName:       resColumn,
+				PointingToTable:  resRefTable,
+				PointingToColumn: resRefColumn,
+				UpdateRule:       resUpdate,
+				DeleteRule:       resDelete,
+			}
+			foreignKeys = append(foreignKeys, fk)
+		}
+	}
+	return foreignKeys
+}
+
+func initDatabaseStructure() {
+	fetchStoredRoutines()
+
+	log.Println("Tables :")
+	var tables []string = fetchTables()
+	for i := range tables {
+		var columns []columsDefinition = fetchColumns(tables[i])
+		log.Printf(" - Table %s : \n", tables[i])
+		for j := range columns {
+			log.Printf("   - Column %s %s IsNullable:%t Default:%s Charset:%s/%s\n",
+				columns[j].Name, columns[j].Type, columns[j].IsNullable, columns[j].Default, columns[j].Charset, columns[j].Collation)
+		}
+	}
+
+	log.Println("Indexes :")
+	var indexes []indexDefinition = fetchIndexes()
+	for i := range indexes {
+		log.Printf(" - Index %s\n", indexes[i])
+	}
+
+	log.Println("Foreign keys :")
+	var foreignKeys []foreignKeyDefinition = fetchForeignKeys()
+	for i := range foreignKeys {
+		log.Printf(" - Foreign key %s\n", foreignKeys[i])
+	}
+}
+
+func UpdateDatabaseStructure() {
+	var tablesNeeded []tableDefinition = databaseStructure.Tables
+
+	for t := range tablesNeeded {
+		var table tableDefinition = tablesNeeded[t]
+		var columnsNeeded []columsDefinition = table.Columns
+
+		var query string = fmt.Sprintf("CREATE TABLE %s (\n", table.Name)
+		var primaryKeys []string = make([]string, 0)
+		for c := range columnsNeeded {
+			if c != 0 {
+				query += ",\n"
+			}
+			var column columsDefinition = columnsNeeded[c]
+			query += fmt.Sprintf("%s %s", column.Name, column.Type)
+
+			if str, ok := column.Charset.(string); ok {
+				query += fmt.Sprintf(" CHARACTER SET %s", str)
+			}
+
+			if str, ok := column.Collation.(string); ok {
+				query += fmt.Sprintf(" COLLATE %s", str)
+			}
+
+			if !column.IsNullable {
+				query += " NOT NULL"
+			}
+
+			if str, ok := column.Default.(string); ok {
+				query += fmt.Sprintf(" DEFAULT %s", str)
+			}
+
+			if column.AutoIncrement {
+				query += " AUTO_INCREMENT"
+			}
+
+			if column.AutoIncrement || column.Primary {
+				primaryKeys = append(primaryKeys, column.Name)
+			}
+		}
+
+		if len(primaryKeys) > 0 {
+			query += fmt.Sprintf(",\nPRIMARY KEY (%s)", strings.Join(primaryKeys, ", "))
+		}
+
+		query += "\n);"
+		fmt.Println(query)
+		executeExec(query)
+	}
+
+	var indexesNeeded []indexDefinition = databaseStructure.Indexes
+
+	for i := range indexesNeeded {
+		var index indexDefinition = indexesNeeded[i]
+		// ALTER TABLE <table> ADD CONSTRAINT PRIMARY KEY(<columns>);
+		// ALTER TABLE <table> ADD CONSTRAINT <constraint_name> UNIQUE(<columns>);
+		var command string = fmt.Sprintf("ALTER TABLE %s ADD CONSTRAINT", index.Table)
+		switch index.Type {
+		case database_ENUM_INDEX_PRIMARY:
+			command += " PRIMARY KEY("
+		case database_ENUM_INDEX_UNIQUE:
+			command += fmt.Sprintf(" %s UNIQUE(", index.Name)
+		}
+
+		for c := range index.Columns {
+			if c != 0 {
+				command += ", "
+			}
+			var column string = index.Columns[c]
+			command += column
+		}
+
+		command += ");"
+		fmt.Println(command)
+		executeExec(command)
+	}
+
+	var foreignKeys []foreignKeyDefinition = databaseStructure.ForeignKeys
+
+	for fk := range foreignKeys {
+		var foreignKey foreignKeyDefinition = foreignKeys[fk]
+		// ALTER TABLE <table> ADD CONSTRAINT <constraint_name> FOREIGN KEY(<column>) REFERENCES <ref_table>(<ref_column>) ON DELETE <CASCADE / SET NULL> UPDATE <CASCADE / SET NULL>;
+		var command string = fmt.Sprintf("ALTER TABLE %s ADD INDEX %s(%s);", foreignKey.PointingToTable, foreignKey.Name, foreignKey.PointingToColumn)
+
+		fmt.Println(command)
+		executeExec(command)
+
+		command = fmt.Sprintf("ALTER TABLE %s ADD CONSTRAINT %s FOREIGN KEY (%s) REFERENCES %s (%s)", foreignKey.Table, foreignKey.Name, foreignKey.ColumnName, foreignKey.PointingToTable, foreignKey.PointingToColumn)
+
+		if foreignKey.DeleteRule != "" {
+			command += fmt.Sprintf(" ON DELETE %s", foreignKey.DeleteRule)
+		}
+
+		if foreignKey.UpdateRule != "" {
+			command += fmt.Sprintf(" ON UPDATE %s", foreignKey.UpdateRule)
+		}
+
+		command += ";"
+
+		fmt.Println(command)
+		executeExec(command)
+	}
+
+	var storedFunctions []storedFunctionDefinition = databaseStructure.StoredFunctions
+
+	for _, f := range storedFunctions {
+		// CREATE DEFINER='<user>'@'<host>' FUNCTION <func_name>(<param1>, <param2>, ...) RETURNS <return_type> BEGIN
+		//  [...]
+		// END
+
+		var command string = fmt.Sprintf("CREATE DEFINER=`%s`@`%s` FUNCTION `%s`(", dbConfig.User, dbConfig.Host, f.Name)
+
+		for i, fp := range f.Parameters {
+			if i != 0 {
+				command += ", "
+			}
+			command += fmt.Sprintf("`%s` %s", fp.Name, fp.Type)
+
+			if fpc, ok := fp.Charset.(string); ok {
+				command += fmt.Sprintf(" CHARACTER SET %s", fpc)
+			}
+			if fpc, ok := fp.Collation.(string); ok {
+				command += fmt.Sprintf(" COLLATE %s", fpc)
+			}
+		}
+		command += fmt.Sprintf(") RETURNS %s", f.Return.Type)
+
+		if frc, ok := f.Return.Charset.(string); ok {
+			command += fmt.Sprintf(" CHARACTER SET %s", frc)
+		}
+		if frc, ok := f.Return.Collation.(string); ok {
+			command += fmt.Sprintf(" COLLATE %s", frc)
+		}
+
+		command += fmt.Sprintf(" BEGIN %s END", f.Command)
+
+		fmt.Println(command)
+		executeExec(command)
+	}
+
+	var storedProcedures []storedProcedureDefinition = databaseStructure.StoredProcedures
+
+	for _, p := range storedProcedures {
+		// CREATE DEFINER='<user>'@'<host>' PROCEDURE <proc_name>(IN <param1>, IN <param2>, ...) BEGIN
+		//  [...]
+		// END
+
+		var command string = fmt.Sprintf("CREATE DEFINER=`%s`@`%s` PROCEDURE `%s`(", dbConfig.User, dbConfig.Host, p.Name)
+
+		for i, pp := range p.Parameters {
+			if i != 0 {
+				command += ", "
+			}
+			command += fmt.Sprintf("IN '%s' %s", pp.Name, pp.Type)
+
+			if ppc, ok := pp.Charset.(string); ok {
+				command += fmt.Sprintf(" CHARACTER SET %s", ppc)
+			}
+			if ppc, ok := pp.Collation.(string); ok {
+				command += fmt.Sprintf(" COLLATE %s", ppc)
+			}
+		}
+		command += fmt.Sprintf(") BEGIN %s END", p.Command)
+
+		fmt.Println(command)
+		executeExec(command)
+	}
+}
+
+func DestroyDatabase() {
+	var tables []string = fetchTables()
+	var foreignKeys []foreignKeyDefinition = fetchForeignKeys()
+
+	for fk := range foreignKeys {
+		var foreignKey foreignKeyDefinition = foreignKeys[fk]
+		var command string = fmt.Sprintf("ALTER TABLE %s DROP FOREIGN KEY %s;", foreignKey.Table, foreignKey.Name)
+
+		fmt.Println(command)
+		executeExec(command)
+	}
+
+	for t := range tables {
+		var table string = tables[t]
+		var command string = fmt.Sprintf("DROP TABLE %s;", table)
+
+		fmt.Println(command)
+		executeExec(command)
+	}
+
+	fetchStoredRoutines()
+
+	for r, t := range storedRoutines {
+		var command = "DROP"
+		switch t {
+		case database_ROUTINE_TYPE_FUNCTION:
+			command += " FUNCTION "
+		case database_ROUTINE_TYPE_PROCEDURE:
+			command += " PROCEDURE "
+		}
+		command += r
+
+		fmt.Println(command)
+		executeExec(command)
 	}
 }

src/profiler/profiler.go

@@ -0,0 +1,143 @@
+package profiler
+
+import (
+	"fmt"
+	"log"
+	"maps"
+	"math"
+	"slices"
+	"sync"
+	"time"
+)
+
+const PROFILER_DEFAULT_MAX_COUNT uint32 = 1000
+const PROFILER_DEFAULT_UNIT string = ""
+
+type Data struct {
+	count     uint32
+	mean      float64
+	min       time.Duration
+	max       time.Duration
+	lastValue time.Duration
+	unit      string
+}
+
+type Profile struct {
+	sync.RWMutex
+	unit      string
+	count     uint32
+	maxCount  uint32
+	index     uint32
+	sum       time.Duration
+	mean      float64
+	values    []time.Duration
+	lastValue time.Duration
+}
+
+var profiles map[string]*Profile = make(map[string]*Profile)
+
+func Register(entry string, maxValues uint32, unit string) {
+	var profile *Profile
+	var exist bool
+	profile, exist = profiles[entry]
+
+	if exist && (profile != nil) {
+		return
+	}
+
+	profile = new(Profile)
+	profile.maxCount = maxValues
+	profile.values = make([]time.Duration, profile.maxCount)
+	profile.unit = unit
+	profiles[entry] = profile
+}
+
+func Add(entry string, duration time.Duration) {
+	var profile *Profile
+	var exist bool
+	profile, exist = profiles[entry]
+
+	if !exist || (profile == nil) {
+		profile = new(Profile)
+		profile.maxCount = PROFILER_DEFAULT_MAX_COUNT
+		profile.values = make([]time.Duration, profile.maxCount)
+		profile.unit = PROFILER_DEFAULT_UNIT
+		profiles[entry] = profile
+	}
+
+	profile.Lock()
+
+	var lastValue time.Duration = profile.values[profile.index]
+	profile.values[profile.index] = duration
+	profile.index++
+	if profile.index >= profile.maxCount {
+		profile.index = 0
+	}
+
+	if profile.count < profile.maxCount {
+		profile.count++
+	}
+
+	profile.sum += duration - lastValue
+	profile.mean = (((float64)(profile.sum)) / (float64)(time.Duration(profile.count)))
+	profile.lastValue = duration
+
+	profile.Unlock()
+}
+
+func GetAll(entries *[]string) {
+	*entries = slices.Collect(maps.Keys(profiles))
+}
+
+func Get(entry string) Data {
+	var profile *Profile
+	var exist bool
+	profile, exist = profiles[entry]
+
+	if !exist || (profile == nil) {
+		profile = new(Profile)
+		profiles[entry] = profile
+	}
+
+	var data Data
+
+	profile.RLock()
+
+	data.mean = profile.mean
+	data.min = math.MaxInt64
+	data.max = 0
+	data.count = profile.count
+	data.unit = profile.unit
+	data.lastValue = profile.lastValue
+	for i := range profile.count {
+		value := profile.values[i]
+		if value < data.min {
+			data.min = value
+		}
+		if value > data.max {
+			data.max = value
+		}
+	}
+
+	profile.RUnlock()
+
+	if data.count == 0 {
+		data.min = 0
+	}
+
+	return data
+}
+
+func (data Data) ToString() string {
+	return fmt.Sprintf(`
+        - Last value :       %d %s
+        - Mean :             %f %s
+        - Min :              %d %s
+        - Max :              %d %s
+        - Number of values : %d
+    `, data.lastValue, data.unit, data.mean, data.unit, data.min, data.unit, data.max, data.unit, data.count)
+}
+
+func Log(entry string) {
+	log.Println(Get(entry).ToString())
+}