From 745c18826ebbe5a00f522da2619e223f282a0197 Mon Sep 17 00:00:00 2001 From: Maxim Likhachev Date: Thu, 3 Nov 2022 15:58:37 +0500 Subject: [PATCH] finex v0.1 --- COPYING | 674 ++++++++++++++++++++++++++++++++++++++++++++ README.md | 74 +++++ dashboard/dashboard.json | 563 ++++++++++++++++++++++++++++++++++++ src/haskell/finex.cabal | 30 ++ src/haskell/finex.hs | 153 ++++++++++ src/haskell/hie.yaml | 4 + src/haskell/stack.yaml | 68 +++++ src/haskell/stack.yaml.lock | 20 ++ src/racket/finex.rkt | 133 +++++++++ 9 files changed, 1719 insertions(+) create mode 100644 COPYING create mode 100644 README.md create mode 100644 dashboard/dashboard.json create mode 100644 src/haskell/finex.cabal create mode 100644 src/haskell/finex.hs create mode 100644 src/haskell/hie.yaml create mode 100644 src/haskell/stack.yaml create mode 100644 src/haskell/stack.yaml.lock create mode 100644 src/racket/finex.rkt diff --git a/COPYING b/COPYING new file mode 100644 index 0000000..94a9ed0 --- /dev/null +++ b/COPYING @@ -0,0 +1,674 @@ + GNU GENERAL PUBLIC LICENSE + Version 3, 29 June 2007 + + Copyright (C) 2007 Free Software Foundation, Inc. + 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. + + + Copyright (C) + + 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 . + +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: + + Copyright (C) + 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 +. + + 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 +. diff --git a/README.md b/README.md new file mode 100644 index 0000000..8f48c06 --- /dev/null +++ b/README.md @@ -0,0 +1,74 @@ +# Finex + +## Описание + +Простейший сервис, предоставляющий API для обновления финансового (и любого другого) баланса по категориям. +Информация о балансе экспортируется в виде метрик в формате Prometheus. + +В репозитории представлены две версии: + +- [на Racket](src/racket), +- [на Haskell](src/haskell). + +Пример панели Grafana можно найти в файле [dashboard/dashboard.json](dashboard/dashboard.json). + +## Лицензия + +[GNU General Public License Version 3](COPYING). + +## Использование + +### Запуск + +Для настройки сервиса можно использовать следующие переменные: + +- `FINEX_HOST` -- сетевой адрес (по умолчанию `127.0.0.1`), +- `FINEX_PORT` -- сетевой порт (по умолчанию `8000`), +- `FINEX_DB` -- путь до файла базы данных. + +[Racket-версию](src/racket) можно запустить через `racket`: + + $ cd src/racket + $ FINEX_DB=/var/lib/finex/db racket ./finex.rkt + +[Haskell](src/haskell) использует `stack`: + + $ cd src/haskell + $ stack build + $ FINEX_DB=/var/lib/finex/db stack run + +### API + +Доступные методы проиллюстрированы в следующем листинге: + +``` +$ curl -X GET localhost:3000/total +{"total":0} + +$ curl -X POST localhost:3000/Income -d 5000 +{"Income":5000} + +$ curl -X POST localhost:3000/Income -d +300 +{"Income":5300} + +$ curl -X POST localhost:3000/Income -d -1000 +{"Income":4300} + +$ curl -X GET localhost:3000/Income +{"Income":4300} + +$ curl -X GET localhost:3000/total +{"total":4300} + +$ curl -X POST localhost:3000/Trading -d 400 +{"Income":4300,"Trading":400} + +$ curl -X GET localhost:3000/total +{"total":4300} + +$ curl -X GET localhost:3000/metrics + +finex_amount_debts{type="Income"} 4300 +finex_amount_debts{type="Trading"} 400 +``` + diff --git a/dashboard/dashboard.json b/dashboard/dashboard.json new file mode 100644 index 0000000..72241b9 --- /dev/null +++ b/dashboard/dashboard.json @@ -0,0 +1,563 @@ +{ + "annotations": { + "list": [ + { + "builtIn": 1, + "datasource": { + "type": "grafana", + "uid": "-- Grafana --" + }, + "enable": true, + "hide": true, + "iconColor": "rgba(0, 211, 255, 1)", + "name": "Annotations & Alerts", + "target": { + "limit": 100, + "matchAny": false, + "tags": [], + "type": "dashboard" + }, + "type": "dashboard" + } + ] + }, + "editable": true, + "fiscalYearStartMonth": 0, + "graphTooltip": 0, + "id": 26, + "links": [], + "liveNow": false, + "panels": [ + { + "datasource": { + "type": "prometheus", + "uid": "PBFA97CFB590B2093" + }, + "fieldConfig": { + "defaults": { + "color": { + "mode": "thresholds" + }, + "mappings": [], + "min": 2, + "thresholds": { + "mode": "absolute", + "steps": [ + { + "color": "yellow", + "value": null + }, + { + "color": "green", + "value": 500000 + } + ] + }, + "unit": "currencyRUB" + }, + "overrides": [] + }, + "gridPos": { + "h": 7, + "w": 12, + "x": 0, + "y": 0 + }, + "id": 4, + "options": { + "colorMode": "value", + "graphMode": "none", + "justifyMode": "center", + "orientation": "auto", + "reduceOptions": { + "calcs": [ + "lastNotNull" + ], + "fields": "", + "values": false + }, + "textMode": "value" + }, + "pluginVersion": "8.5.14", + "targets": [ + { + "datasource": { + "type": "prometheus", + "uid": "PBFA97CFB590B2093" + }, + "editorMode": "code", + "expr": "sum(finex_amount_savings)", + "legendFormat": "₽", + "range": true, + "refId": "A" + } + ], + "title": "Сбережения, всего", + "type": "stat" + }, + { + "datasource": { + "type": "prometheus", + "uid": "PBFA97CFB590B2093" + }, + "fieldConfig": { + "defaults": { + "color": { + "mode": "thresholds" + }, + "mappings": [], + "min": 2, + "thresholds": { + "mode": "absolute", + "steps": [ + { + "color": "green", + "value": null + }, + { + "color": "yellow", + "value": 300000 + }, + { + "color": "orange", + "value": 500000 + }, + { + "color": "red", + "value": 1000000 + } + ] + }, + "unit": "currencyRUB" + }, + "overrides": [] + }, + "gridPos": { + "h": 7, + "w": 12, + "x": 12, + "y": 0 + }, + "id": 6, + "options": { + "colorMode": "value", + "graphMode": "none", + "justifyMode": "center", + "orientation": "auto", + "reduceOptions": { + "calcs": [ + "last" + ], + "fields": "", + "values": false + }, + "textMode": "value" + }, + "pluginVersion": "8.5.14", + "targets": [ + { + "datasource": { + "type": "prometheus", + "uid": "PBFA97CFB590B2093" + }, + "editorMode": "code", + "expr": "-sum(finex_amount_debts)", + "legendFormat": "₽", + "range": true, + "refId": "A" + } + ], + "title": "Долги, всего", + "type": "stat" + }, + { + "aliasColors": {}, + "bars": false, + "dashLength": 10, + "dashes": false, + "datasource": { + "type": "prometheus", + "uid": "PBFA97CFB590B2093" + }, + "fieldConfig": { + "defaults": { + "unit": "decbytes" + }, + "overrides": [] + }, + "fill": 1, + "fillGradient": 0, + "gridPos": { + "h": 8, + "w": 24, + "x": 0, + "y": 7 + }, + "hiddenSeries": false, + "id": 10, + "legend": { + "avg": false, + "current": false, + "max": false, + "min": false, + "show": true, + "total": false, + "values": false + }, + "lines": true, + "linewidth": 1, + "nullPointMode": "null", + "options": { + "alertThreshold": true + }, + "percentage": false, + "pluginVersion": "8.5.14", + "pointradius": 2, + "points": false, + "renderer": "flot", + "seriesOverrides": [], + "spaceLength": 10, + "stack": false, + "steppedLine": false, + "targets": [ + { + "datasource": { + "type": "prometheus", + "uid": "PBFA97CFB590B2093" + }, + "expr": "finex_memory_usage", + "refId": "A" + } + ], + "thresholds": [], + "timeRegions": [], + "title": "Использование RAM", + "tooltip": { + "shared": true, + "sort": 0, + "value_type": "individual" + }, + "type": "graph", + "xaxis": { + "mode": "time", + "show": true, + "values": [] + }, + "yaxes": [ + { + "$$hashKey": "object:2120", + "format": "decbytes", + "logBase": 1, + "show": true + }, + { + "$$hashKey": "object:2121", + "format": "short", + "logBase": 1, + "show": true + } + ], + "yaxis": { + "align": false + } + }, + { + "aliasColors": {}, + "bars": false, + "dashLength": 10, + "dashes": false, + "datasource": { + "type": "prometheus", + "uid": "PBFA97CFB590B2093" + }, + "fieldConfig": { + "defaults": { + "unit": "currencyRUB" + }, + "overrides": [] + }, + "fill": 1, + "fillGradient": 0, + "gridPos": { + "h": 9, + "w": 12, + "x": 0, + "y": 15 + }, + "hiddenSeries": false, + "id": 2, + "legend": { + "alignAsTable": true, + "avg": false, + "current": true, + "max": false, + "min": false, + "rightSide": false, + "show": true, + "total": false, + "values": true + }, + "lines": true, + "linewidth": 1, + "nullPointMode": "null", + "options": { + "alertThreshold": true + }, + "percentage": false, + "pluginVersion": "8.5.14", + "pointradius": 2, + "points": false, + "renderer": "flot", + "seriesOverrides": [], + "spaceLength": 10, + "stack": false, + "steppedLine": false, + "targets": [ + { + "datasource": { + "type": "prometheus", + "uid": "PBFA97CFB590B2093" + }, + "editorMode": "code", + "expr": "finex_amount_savings", + "legendFormat": "{{type}}", + "range": true, + "refId": "A" + }, + { + "datasource": { + "type": "prometheus", + "uid": "PBFA97CFB590B2093" + }, + "editorMode": "code", + "expr": "sum(finex_amount_savings)", + "hide": false, + "legendFormat": "Всего", + "range": true, + "refId": "B" + } + ], + "thresholds": [], + "timeRegions": [], + "title": "Сбережения", + "tooltip": { + "shared": true, + "sort": 0, + "value_type": "individual" + }, + "type": "graph", + "xaxis": { + "mode": "time", + "show": true, + "values": [] + }, + "yaxes": [ + { + "$$hashKey": "object:706", + "format": "currencyRUB", + "logBase": 1, + "show": true + }, + { + "$$hashKey": "object:707", + "format": "short", + "logBase": 1, + "show": true + } + ], + "yaxis": { + "align": false + } + }, + { + "aliasColors": {}, + "bars": false, + "dashLength": 10, + "dashes": false, + "datasource": { + "type": "prometheus", + "uid": "PBFA97CFB590B2093" + }, + "fieldConfig": { + "defaults": { + "unit": "currencyRUB" + }, + "overrides": [] + }, + "fill": 1, + "fillGradient": 0, + "gridPos": { + "h": 9, + "w": 12, + "x": 12, + "y": 15 + }, + "hiddenSeries": false, + "id": 5, + "legend": { + "alignAsTable": true, + "avg": false, + "current": true, + "max": false, + "min": false, + "show": true, + "total": false, + "values": true + }, + "lines": true, + "linewidth": 1, + "nullPointMode": "null", + "options": { + "alertThreshold": true + }, + "percentage": false, + "pluginVersion": "8.5.14", + "pointradius": 2, + "points": false, + "renderer": "flot", + "seriesOverrides": [], + "spaceLength": 10, + "stack": false, + "steppedLine": false, + "targets": [ + { + "datasource": { + "type": "prometheus", + "uid": "PBFA97CFB590B2093" + }, + "editorMode": "code", + "expr": "finex_amount_debts", + "legendFormat": "{{type}}", + "range": true, + "refId": "A" + }, + { + "datasource": { + "type": "prometheus", + "uid": "PBFA97CFB590B2093" + }, + "editorMode": "code", + "expr": "sum(finex_amount_debts)", + "hide": false, + "legendFormat": "Всего", + "range": true, + "refId": "B" + } + ], + "thresholds": [], + "timeRegions": [], + "title": "Долги", + "tooltip": { + "shared": true, + "sort": 0, + "value_type": "individual" + }, + "type": "graph", + "xaxis": { + "mode": "time", + "show": true, + "values": [] + }, + "yaxes": [ + { + "$$hashKey": "object:706", + "format": "currencyRUB", + "logBase": 1, + "show": true + }, + { + "$$hashKey": "object:707", + "format": "short", + "logBase": 1, + "show": true + } + ], + "yaxis": { + "align": false + } + }, + { + "datasource": { + "type": "prometheus", + "uid": "PBFA97CFB590B2093" + }, + "fieldConfig": { + "defaults": { + "color": { + "mode": "thresholds" + }, + "mappings": [], + "noValue": "0", + "thresholds": { + "mode": "absolute", + "steps": [ + { + "color": "green", + "value": null + }, + { + "color": "red", + "value": 80 + } + ] + } + }, + "overrides": [] + }, + "gridPos": { + "h": 7, + "w": 12, + "x": 0, + "y": 24 + }, + "id": 8, + "options": { + "colorMode": "value", + "graphMode": "area", + "justifyMode": "auto", + "orientation": "auto", + "reduceOptions": { + "calcs": [ + "lastNotNull" + ], + "fields": "", + "values": false + }, + "textMode": "auto" + }, + "pluginVersion": "8.5.14", + "targets": [ + { + "datasource": { + "type": "prometheus", + "uid": "PBFA97CFB590B2093" + }, + "editorMode": "code", + "expr": "sum(increase(finex_amount_savings[$__range]))", + "legendFormat": "{{label_name}}", + "range": true, + "refId": "A" + } + ], + "title": "Поступления", + "type": "stat" + } + ], + "refresh": "30s", + "schemaVersion": 36, + "style": "dark", + "tags": [], + "templating": { + "list": [] + }, + "time": { + "from": "now-15m", + "to": "now" + }, + "timepicker": {}, + "timezone": "", + "title": "Finances", + "uid": "finex", + "version": 12, + "weekStart": "" +} diff --git a/src/haskell/finex.cabal b/src/haskell/finex.cabal new file mode 100644 index 0000000..b1e2198 --- /dev/null +++ b/src/haskell/finex.cabal @@ -0,0 +1,30 @@ +name: finex +version: 0.1.0.0 +homepage: https://code.envrm.info/src/finex +license: GPL-3.0-only +author: Maxim Likhachev +maintainer: envrm@yandex.ru +copyright: 2022 Maxim Likhachev +category: Cli +build-type: Simple +cabal-version: >=1.10 + +executable finex + main-is: finex.hs + default-language: Haskell2010 + other-modules: + Paths_finex + ghc-options: -fforce-recomp -fobject-code -O2 -optc-O3 -funfolding-use-threshold=16 -threaded -Wincomplete-uni-patterns -Wincomplete-record-updates -Wmonomorphism-restriction -Wimplicit-prelude -Wmissing-local-signatures -Wmissing-exported-signatures -Wmissing-export-lists -Wmissing-import-lists -Wmissing-home-modules -Wmissing-methods -Wunused-packages -Wdodgy-imports -Widentities -Wredundant-constraints -Wpartial-fields -Wmissed-specialisations -Wcpp-undef -Wunused-imports -Wunused-matches -fno-cse -fhide-source-paths -freverse-errors -fwrite-ide-info -hiedir=.hie + build-depends: + base >= 4.7 && < 5, + bytestring, + relude, + text >= 1.2.2.0, + aeson, + scotty, + containers, + http-types, + wai-extra, + mr-env, + directory, + strict diff --git a/src/haskell/finex.hs b/src/haskell/finex.hs new file mode 100644 index 0000000..99ecab9 --- /dev/null +++ b/src/haskell/finex.hs @@ -0,0 +1,153 @@ +{-# LANGUAGE NoImplicitPrelude #-} +{-# LANGUAGE OverloadedStrings #-} +{-# LANGUAGE Strict #-} + +-- Copyright (C) 2022, Maxim Likhachev, +-- +-- 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, version 3. +-- +-- 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 . + +module Main (main) where + +import Data.Aeson (decode', decodeFileStrict', encodeFile) +import qualified Data.ByteString.Char8 as BS +import qualified Data.ByteString.Lazy.Char8 as BL +import Data.Char (toLower, toUpper) +import Data.Map (Map, delete, elems, empty, filter, findWithDefault, insertWith, + mapWithKey, singleton) +import Data.Maybe (Maybe (Just, Nothing), fromMaybe) +import Data.Text.Lazy (Text, pack) +import Foreign.Marshal.Unsafe (unsafeLocalState) +import Network.HTTP.Types.Status (methodNotAllowed405) +import Network.Wai.Middleware.RequestLogger (logStdout) +import Relude (Eq ((/=)), FilePath, Foldable (length, null), IO, Int, + Monad (return, (>>), (>>=)), Num ((+)), Ord ((<)), String, const, + exitFailure, intercalate, map, otherwise, putStrLn, readFile, + seq, show, stderr, sum, unless, when, ($), (++), (.), (=<<)) +import System.Directory (doesFileExist) +import System.Environment.MrEnv (envAsInt, envAsString) +import System.IO (writeFile) +import System.IO.Strict (readFile) +import Web.Scotty (body, delete, get, json, middleware, notFound, param, post, + redirect, scotty, status, text) + +-- ----------------------------------------------------------------------------- + +loadData :: FilePath -> Map String Int +loadData db = fromMaybe Data.Map.empty $ unsafeLocalState $ decodeFileStrict' db +{-# NOINLINE loadData #-} + +total :: FilePath -> Map String Int +total db = Data.Map.singleton "total" $ Relude.sum $ loadData db +{-# NOINLINE total #-} + +normalize :: String -> String +normalize (x:xs) = Data.Char.toUpper x : Relude.map Data.Char.toLower xs +normalize [] = [] + +getAll :: FilePath -> Map String Int +getAll db = fromMaybe Data.Map.empty $ decode' $ unsafeLocalState $ do + contents <- Relude.readFile db + seq (Relude.length contents) (return ()) + + return $ BL.pack contents +{-# NOINLINE getAll #-} + +getData :: FilePath -> String -> Map String Int +getData db x = Data.Map.singleton (normalize x) $ findWithDefault 0 (normalize x) (loadData db) +{-# NOINLINE getData #-} + +updateData :: FilePath -> BL.ByteString -> String -> Map String Int +updateData db val key = unsafeLocalState $ do + q <- System.IO.Strict.readFile db + + let js :: Maybe (Map String Int) + js = decode' $ BL.pack q in + let res = j $ fromMaybe Data.Map.empty js in do + Data.Aeson.encodeFile db res + return res + where + j :: Map String Int -> Map String Int + j db = Data.Map.filter (/= 0) $ insertWith fx (normalize key) int db + + int :: Int + int = m $ BL.readInt val + + fx :: Int -> Int -> Int + fx = case BL.head val of + '+' -> (+) + '-' -> (+) + _ -> const + + m :: Maybe (Int, BL.ByteString) -> Int + m (Just (x, _)) = x + m Nothing = 0 + +deleteData :: FilePath -> String -> Map String Int +deleteData db k = unsafeLocalState $ do + q <- System.IO.Strict.readFile db + + let js :: Maybe (Map String Int) + js = decode' $ BL.pack q in + let res = j $ fromMaybe Data.Map.empty js in do + Data.Aeson.encodeFile db res + return res + where + j :: Map String Int -> Map String Int + j d = Data.Map.filter (/= 0) $ Data.Map.delete (normalize k) d + +metrics :: String -> Data.Text.Lazy.Text +metrics = Data.Text.Lazy.pack . Relude.intercalate "\\n" . elems . Data.Map.mapWithKey m . loadData + where + m :: String -> Int -> String + m k v = "finex_amount_" ++ t v ++ "{type=\"" ++ k ++"\"} " ++ show v + + t :: Int -> String + t x | x < 0 = "savings" + | otherwise = "debts" + + +startServer :: Int -> String -> IO () +startServer port db = scotty port $ do + middleware logStdout + + Web.Scotty.get "/" $ Web.Scotty.json $ Main.getAll db + Web.Scotty.post "/" $ status methodNotAllowed405 + Web.Scotty.delete "/" $ status methodNotAllowed405 + + Web.Scotty.get "/metrics" $ Web.Scotty.text $ metrics db + Web.Scotty.post "/metrics" $ status methodNotAllowed405 + Web.Scotty.delete "/metrics" $ status methodNotAllowed405 + + Web.Scotty.get "/total" $ Web.Scotty.json $ total db + Web.Scotty.post "/total" $ status methodNotAllowed405 + Web.Scotty.delete "/total" $ status methodNotAllowed405 + + Web.Scotty.get "/:path" $ Web.Scotty.json . getData db =<< param "path" + Web.Scotty.post "/:path" $ body >>= \b -> Web.Scotty.json . updateData db b =<< param "path" + Web.Scotty.delete "/:path" $ Web.Scotty.json . deleteData db =<< param "path" + + notFound $ redirect "/" + +main :: IO () +main = do + port <- envAsInt "FINEX_PORT" 3000 + db <- envAsString "FINEX_DB" [] + + fileExists <- doesFileExist db + + when (Relude.null db) $ BS.hPutStrLn stderr "ERROR: FINEX_DB environment variable is not set." >> Relude.exitFailure + + unless fileExists $ System.IO.writeFile db "" >> Relude.putStrLn ("Database file " ++ db ++ " does not exist. Creating.") + + startServer port db + diff --git a/src/haskell/hie.yaml b/src/haskell/hie.yaml new file mode 100644 index 0000000..887e6a8 --- /dev/null +++ b/src/haskell/hie.yaml @@ -0,0 +1,4 @@ +cradle: + stack: + - path: "./finex.hs" + component: "finex:exe:finex" diff --git a/src/haskell/stack.yaml b/src/haskell/stack.yaml new file mode 100644 index 0000000..dcbcbee --- /dev/null +++ b/src/haskell/stack.yaml @@ -0,0 +1,68 @@ +# This file was automatically generated by 'stack init' +# +# Some commonly used options have been documented as comments in this file. +# For advanced use and comprehensive documentation of the format, please see: +# https://docs.haskellstack.org/en/stable/yaml_configuration/ + +# Resolver to choose a 'specific' stackage snapshot or a compiler version. +# A snapshot resolver dictates the compiler version and the set of packages +# to be used for project dependencies. For example: +# +# resolver: lts-3.5 +# resolver: nightly-2015-09-21 +# resolver: ghc-7.10.2 +# +# The location of a snapshot can be provided as a file or url. Stack assumes +# a snapshot provided as a file might change, whereas a url resource does not. +# +# resolver: ./custom-snapshot.yaml +# resolver: https://example.com/snapshots/2018-01-01.yaml +resolver: + url: https://raw.githubusercontent.com/commercialhaskell/stackage-snapshots/master/lts/18/1.yaml + +# User packages to be built. +# Various formats can be used as shown in the example below. +# +# packages: +# - some-directory +# - https://example.com/foo/bar/baz-0.0.2.tar.gz +# subdirs: +# - auto-update +# - wai +packages: +- . +# Dependency packages to be pulled from upstream that are not in the resolver. +# These entries can reference officially published versions as well as +# forks / in-progress versions pinned to a git hash. For example: +# +# extra-deps: +# - acme-missiles-0.3 +# - git: https://github.com/commercialhaskell/stack.git +# commit: e7b331f14bcffb8367cd58fbfc8b40ec7642100a +# +extra-deps: +- mr-env-0.1.0.4@sha256:56439c7df09a83b72b170f104723293643ad2635df03cdcd174a05d0d73e788d,1055 + +# Override default flag values for local packages and extra-deps +# flags: {} + +# Extra package databases containing global packages +# extra-package-dbs: [] + +# Control whether we use the GHC we find on the path +# system-ghc: true +# +# Require a specific version of stack, using version ranges +# require-stack-version: -any # Default +# require-stack-version: ">=2.7" +# +# Override the architecture used by stack, especially useful on Windows +# arch: i386 +# arch: x86_64 +# +# Extra directories used by stack for building +# extra-include-dirs: [/path/to/dir] +# extra-lib-dirs: [/path/to/dir] +# +# Allow a newer minor version of GHC than the snapshot specifies +# compiler-check: newer-minor diff --git a/src/haskell/stack.yaml.lock b/src/haskell/stack.yaml.lock new file mode 100644 index 0000000..c449b79 --- /dev/null +++ b/src/haskell/stack.yaml.lock @@ -0,0 +1,20 @@ +# This file was autogenerated by Stack. +# You should not edit this file by hand. +# For more information, please see the documentation at: +# https://docs.haskellstack.org/en/stable/lock_files + +packages: +- completed: + pantry-tree: + sha256: da91d4e0f5aff5336e3e73ecb1d44fe595dd47bc572335956ba30d937d14573d + size: 376 + hackage: mr-env-0.1.0.4@sha256:56439c7df09a83b72b170f104723293643ad2635df03cdcd174a05d0d73e788d,1055 + original: + hackage: mr-env-0.1.0.4@sha256:56439c7df09a83b72b170f104723293643ad2635df03cdcd174a05d0d73e788d,1055 +snapshots: +- completed: + sha256: 4e4c5e435a2f1c6f3c650f282db0f387f806406ed4fe6ef1aa4e6add9035d065 + size: 585392 + url: https://raw.githubusercontent.com/commercialhaskell/stackage-snapshots/master/lts/18/1.yaml + original: + url: https://raw.githubusercontent.com/commercialhaskell/stackage-snapshots/master/lts/18/1.yaml diff --git a/src/racket/finex.rkt b/src/racket/finex.rkt new file mode 100644 index 0000000..a65e752 --- /dev/null +++ b/src/racket/finex.rkt @@ -0,0 +1,133 @@ +#lang racket/base + +;; Copyright (C) 2022, Maxim Likhachev, +;; +;; 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, version 3. +;; +;; 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 . + +(require response-ext + json + racket/file + racket/string + routy + web-server/servlet + web-server/servlet-env) + +(define (load-data) + (if (file-exists? db) + (file->string db) + "{}")) + +(define (load-data-json) + (string->jsexpr (load-data))) + +(define (save-data data) + (display-to-file data db #:exists 'replace)) + +(define (sum-values data) + (jsexpr->string (hash 'total + (foldl + 0 (hash-values data))))) + +(define (metrics) + (string-join + (append (list "# HELP finex_amount_debts Долги" + "# TYPE finex_amount_debts gauge" + "# HELP finex_amount_savings Сбережения" + "# TYPE finex_amount_savings gauge" + (format "finex_memory_usage ~a" (current-memory-use))) + (hash-map (load-data-json) + (λ (k v) + (format "finex_amount_~a{type=\"~a\"} ~a" + (if (positive? v) 'savings 'debts) k v)))) "\n")) + +(define (amount/get key) + (let* ((data (load-data-json)) + (f (string->symbol (string-titlecase key)))) + + (jsexpr->string (json-null)))) + +(define (amount/update key value) + (if value + (let* ((data (load-data-json)) + (f (string->symbol (string-titlecase key))) + (number-value (string->number (bytes->string/utf-8 value))) + (current-value (hash-ref data f 0)) + (new-value (if (not number-value) #f + (case (bytes-utf-8-ref value 0) + ((#\+ #\-) (+ current-value number-value)) + (else number-value)))) + (new-data (case new-value + ((#f) (raise (error (format "Invalid number: ~a" value)))) + ((0) (jsexpr->string (hash-remove data f))) + (else (jsexpr->string (hash-set data f new-value)))))) + (save-data new-data) + new-data) + (raise (error "Cannot update key new value is not set")))) + +(define (amount/delete key) + (let* ((data (load-data-json)) + (f (string->symbol (string-titlecase key))) + (new-data (jsexpr->string (hash-remove data f)))) + (save-data new-data) + new-data)) + +(define (response/405) + (response/make #:code 405 #:message (string->bytes/utf-8 "Method Not Allowed") "")) + +; ------------------------------------------------------------------------------ + +(routy/get "." (λ (req params) (load-data))) +(routy/get "/all" (λ (req params) (load-data))) +(routy/get "/total" (λ (req params) (sum-values (load-data-json)))) +(routy/get "/metrics" (λ (req params) (metrics))) + +(routy/post "." (λ (req params) (response/405))) +(routy/post "/all" (λ (req params) (response/405))) +(routy/post "/total" (λ (req params) (response/405))) +(routy/post "/metrics" (λ (req params) (response/405))) + +(routy/delete "." (λ (req params) (response/405))) +(routy/delete "/all" (λ (req params) (response/405))) +(routy/delete "/total" (λ (req params) (response/405))) +(routy/delete "/metrics" (λ (req params) (response/405))) + +(routy/get "/:path" (λ (req params) (amount/get (request/param params 'path)))) +(routy/post "/:path" (λ (req params) (amount/update (request/param params 'path) (request-post-data/raw req)))) +(routy/delete "/:path" (λ (req params) (amount/delete (request/param params 'path)))) + +(routy/not-found (λ (req) (load-data))) + +; ------------------------------------------------------------------------------ + +(define db (getenv "FINEX_DB")) +(define host (getenv "FINEX_HOST")) +(define port (getenv "FINEX_PORT")) + +(unless db + (eprintf "ERROR: FINEX_DB environment variable is not set.~%") + (exit 1)) + +(unless (non-empty-string? host) + (displayln "FINEX_HOST is not set. Using 127.0.0.1.")) + +(unless (non-empty-string? port) + (displayln "FINEX_PORT is not set. Using 8000.")) + +(serve/servlet + (λ (req) (routy/response req)) + #:launch-browser? #f + #:servlet-path "/" + #:listen-ip (if host host "127.0.0.1") + #:port (if port (string->number port) 8000) + #:log-file (current-output-port) + #:servlet-regexp #rx"") +