(use-modules (gnu packages)
             (gnu packages autotools)
             ((gnu packages bash) #:select (bash-minimal))
             (gnu packages bison)
             ((gnu packages certs) #:select (nss-certs))
             ((gnu packages cmake) #:select (cmake-minimal))
             (gnu packages commencement)
             (gnu packages compression)
             (gnu packages cross-base)
             (gnu packages file)
             (gnu packages gawk)
             (gnu packages gcc)
             (gnu packages gnome)
             (gnu packages image)
             (gnu packages imagemagick)
             ((gnu packages installers) #:select (nsis-x86_64))
             ((gnu packages linux) #:select (linux-libre-headers-6.1 util-linux))
             (gnu packages llvm)
             (gnu packages mingw)
             (gnu packages moreutils)
             (gnu packages pkg-config)
             ((gnu packages python) #:select (python-minimal))
             ((gnu packages python-build) #:select (python-tomli python-poetry-core))
             ((gnu packages python-crypto) #:select (python-asn1crypto))
             ((gnu packages tls) #:select (openssl))
             ((gnu packages version-control) #:select (git-minimal))
             (guix build-system cmake)
             (guix build-system font)
             (guix build-system gnu)
             (guix build-system python)
             (guix build-system pyproject)
             (guix build-system trivial)
             (guix download)
             (guix gexp)
             (guix git-download)
             ((guix licenses) #:prefix license:)
             (guix packages)
             ((guix utils) #:select (substitute-keyword-arguments)))

(define-syntax-rule (search-our-patches file-name ...)
  "Return the list of absolute file names corresponding to each
FILE-NAME found in ./patches relative to the current file."
  (parameterize
      ((%patch-path (list (string-append (dirname (current-filename)) "/patches"))))
    (list (search-patch file-name) ...)))

(define building-on (string-append "--build=" (list-ref (string-split (%current-system) #\-) 0) "-guix-linux-gnu"))

(define (make-cross-toolchain target
                              base-gcc-for-libc
                              base-kernel-headers
                              base-libc
                              base-gcc)
  "Create a cross-compilation toolchain package for TARGET"
  (let* ((xbinutils (cross-binutils target))
         ;; 1. Build a cross-compiling gcc without targeting any libc, derived
         ;; from BASE-GCC-FOR-LIBC
         (xgcc-sans-libc (cross-gcc target
                                    #:xgcc base-gcc-for-libc
                                    #:xbinutils xbinutils))
         ;; 2. Build cross-compiled kernel headers with XGCC-SANS-LIBC, derived
         ;; from BASE-KERNEL-HEADERS
         (xkernel (cross-kernel-headers target
                                        #:linux-headers base-kernel-headers
                                        #:xgcc xgcc-sans-libc
                                        #:xbinutils xbinutils))
         ;; 3. Build a cross-compiled libc with XGCC-SANS-LIBC and XKERNEL,
         ;; derived from BASE-LIBC
         (xlibc (cross-libc target
                            #:libc base-libc
                            #:xgcc xgcc-sans-libc
                            #:xbinutils xbinutils
                            #:xheaders xkernel))
         ;; 4. Build a cross-compiling gcc targeting XLIBC, derived from
         ;; BASE-GCC
         (xgcc (cross-gcc target
                          #:xgcc base-gcc
                          #:xbinutils xbinutils
                          #:libc xlibc)))
    ;; Define a meta-package that propagates the resulting XBINUTILS, XLIBC, and
    ;; XGCC
    (package
      (name (string-append target "-toolchain"))
      (version (package-version xgcc))
      (source #f)
      (build-system trivial-build-system)
      (arguments '(#:builder (begin (mkdir %output) #t)))
      (propagated-inputs
        (list xbinutils
              xlibc
              xgcc
              `(,xlibc "static")
              `(,xgcc "lib")))
      (synopsis (string-append "Complete GCC tool chain for " target))
      (description (string-append "This package provides a complete GCC tool
chain for " target " development."))
      (home-page (package-home-page xgcc))
      (license (package-license xgcc)))))

(define base-gcc
  (package
    (inherit gcc-12) ;; 12.3.0
    (version "12.4.0")
    (source (origin
              (method url-fetch)
              (uri (string-append "mirror://gnu/gcc/gcc-"
                                  version "/gcc-" version ".tar.xz"))
              (sha256
               (base32
                "0xcida8l2wykvvzvpcrcn649gj0ijn64gwxbplacpg6c0hk6akvh"))))))

(define base-linux-kernel-headers linux-libre-headers-6.1)

(define* (make-bitcoin-cross-toolchain target
                                       #:key
                                       (base-gcc-for-libc linux-base-gcc)
                                       (base-kernel-headers base-linux-kernel-headers)
                                       (base-libc glibc-2.31)
                                       (base-gcc linux-base-gcc))
  "Convenience wrapper around MAKE-CROSS-TOOLCHAIN with default values
desirable for building Bitcoin Core release binaries."
  (make-cross-toolchain target
                        base-gcc-for-libc
                        base-kernel-headers
                        base-libc
                        base-gcc))

(define (gcc-mingw-patches gcc)
  (package-with-extra-patches gcc
    (search-our-patches "gcc-remap-guix-store.patch")))

(define (binutils-mingw-patches binutils)
  (package-with-extra-patches binutils
    (search-our-patches "binutils-unaligned-default.patch")))

(define (winpthreads-patches mingw-w64-x86_64-winpthreads)
  (package-with-extra-patches mingw-w64-x86_64-winpthreads
    (search-our-patches "winpthreads-remap-guix-store.patch")))

(define (make-mingw-pthreads-cross-toolchain target)
  "Create a cross-compilation toolchain package for TARGET"
  (let* ((xbinutils (binutils-mingw-patches (cross-binutils target)))
         (machine (substring target 0 (string-index target #\-)))
         (pthreads-xlibc (winpthreads-patches (make-mingw-w64 machine
                                         #:xgcc (cross-gcc target #:xgcc (gcc-mingw-patches base-gcc))
                                         #:with-winpthreads? #t)))
         (pthreads-xgcc (cross-gcc target
                                    #:xgcc (gcc-mingw-patches mingw-w64-base-gcc)
                                    #:xbinutils xbinutils
                                    #:libc pthreads-xlibc)))
    ;; Define a meta-package that propagates the resulting XBINUTILS, XLIBC, and
    ;; XGCC
    (package
      (name (string-append target "-posix-toolchain"))
      (version (package-version pthreads-xgcc))
      (source #f)
      (build-system trivial-build-system)
      (arguments '(#:builder (begin (mkdir %output) #t)))
      (propagated-inputs
        (list xbinutils
              pthreads-xlibc
              pthreads-xgcc
              `(,pthreads-xgcc "lib")))
      (synopsis (string-append "Complete GCC tool chain for " target))
      (description (string-append "This package provides a complete GCC tool
chain for " target " development."))
      (home-page (package-home-page pthreads-xgcc))
      (license (package-license pthreads-xgcc)))))

(define-public font-tuffy
  (package
    (name "font-tuffy")
    (version "20120614")
    (source
     (origin
       (method url-fetch)
       (uri (string-append "http://tulrich.com/fonts/tuffy-" version ".tar.gz"))
       (file-name (string-append name "-" version ".tar.gz"))
       (sha256
        (base32
         "02vf72bgrp30vrbfhxjw82s115z27dwfgnmmzfb0n9wfhxxfpyf6"))))
    (build-system font-build-system)
    (home-page "http://tulrich.com/fonts/")
    (synopsis "The Tuffy Truetype Font Family")
    (description
     "Thatcher Ulrich's first outline font design. He started with the goal of producing a neutral, readable sans-serif text font. There are lots of \"expressive\" fonts out there, but he wanted to start with something very plain and clean, something he might want to actually use. ")
    (license license:public-domain)))

;; While LIEF is packaged in Guix, we maintain our own package,
;; to simplify building, and more easily apply updates.
;; Moreover, the Guix's package uses cmake, which caused build
;; failure; see https://github.com/bitcoin/bitcoin/pull/27296.
(define-public python-lief
  (package
    (name "python-lief")
    (version "0.13.2")
    (source (origin
              (method git-fetch)
              (uri (git-reference
                    (url "https://github.com/lief-project/LIEF")
                    (commit version)))
              (file-name (git-file-name name version))
              (modules '((guix build utils)))
              (snippet
               '(begin
                  ;; Configure build for Python bindings.
                  (substitute* "api/python/config-default.toml"
                    (("(ninja         = )true" all m)
                     (string-append m "false"))
                    (("(parallel-jobs = )0" all m)
                     (string-append m (number->string (parallel-job-count)))))))
              (sha256
               (base32
                "0y48x358ppig5xp97ahcphfipx7cg9chldj2q5zrmn610fmi4zll"))))
    (build-system python-build-system)
    (native-inputs (list cmake-minimal python-tomli))
    (arguments
     (list
      #:tests? #f                  ;needs network
      #:phases #~(modify-phases %standard-phases
                   (add-before 'build 'change-directory
                     (lambda _
                       (chdir "api/python")))
                   (replace 'build
                     (lambda _
                       (invoke "python" "setup.py" "build"))))))
    (home-page "https://github.com/lief-project/LIEF")
    (synopsis "Library to instrument executable formats")
    (description
     "@code{python-lief} is a cross platform library which can parse, modify
and abstract ELF, PE and MachO formats.")
    (license license:asl2.0)))

(define osslsigncode
  (package
    (name "osslsigncode")
    (version "2.5")
    (source (origin
              (method git-fetch)
              (uri (git-reference
                    (url "https://github.com/mtrojnar/osslsigncode")
                    (commit version)))
              (sha256
               (base32
                "1j47vwq4caxfv0xw68kw5yh00qcpbd56d7rq6c483ma3y7s96yyz"))))
    (build-system cmake-build-system)
    (inputs (list openssl))
    (home-page "https://github.com/mtrojnar/osslsigncode")
    (synopsis "Authenticode signing and timestamping tool")
    (description "osslsigncode is a small tool that implements part of the
functionality of the Microsoft tool signtool.exe - more exactly the Authenticode
signing and timestamping. But osslsigncode is based on OpenSSL and cURL, and
thus should be able to compile on most platforms where these exist.")
    (license license:gpl3+))) ; license is with openssl exception

(define-public python-elfesteem
  (let ((commit "2eb1e5384ff7a220fd1afacd4a0170acff54fe56"))
    (package
      (name "python-elfesteem")
      (version (git-version "0.1" "1" commit))
      (source
       (origin
         (method git-fetch)
         (uri (git-reference
               (url "https://github.com/LRGH/elfesteem")
               (commit commit)))
         (file-name (git-file-name name commit))
         (sha256
          (base32
           "07x6p8clh11z8s1n2kdxrqwqm2almgc5qpkcr9ckb6y5ivjdr5r6"))))
      (build-system python-build-system)
      ;; There are no tests, but attempting to run python setup.py test leads to
      ;; PYTHONPATH problems, just disable the test
      (arguments '(#:tests? #f))
      (home-page "https://github.com/LRGH/elfesteem")
      (synopsis "ELF/PE/Mach-O parsing library")
      (description "elfesteem parses ELF, PE and Mach-O files.")
      (license license:lgpl2.1))))

(define-public python-oscrypto
  (package
    (name "python-oscrypto")
    (version "1.3.0")
    (source
     (origin
       (method git-fetch)
       (uri (git-reference
             (url "https://github.com/wbond/oscrypto")
             (commit version)))
       (file-name (git-file-name name version))
       (sha256
        (base32
         "1v5wkmzcyiqy39db8j2dvkdrv2nlsc48556h73x4dzjwd6kg4q0a"))
       (patches (search-our-patches "oscrypto-hard-code-openssl.patch"))))
    (build-system python-build-system)
    (native-search-paths
     (list (search-path-specification
            (variable "SSL_CERT_FILE")
            (file-type 'regular)
            (separator #f)                ;single entry
            (files '("etc/ssl/certs/ca-certificates.crt")))))

    (propagated-inputs
      (list python-asn1crypto openssl))
    (arguments
     `(#:phases
       (modify-phases %standard-phases
         (add-after 'unpack 'hard-code-path-to-libscrypt
           (lambda* (#:key inputs #:allow-other-keys)
             (let ((openssl (assoc-ref inputs "openssl")))
               (substitute* "oscrypto/__init__.py"
                 (("@GUIX_OSCRYPTO_USE_OPENSSL@")
                  (string-append openssl "/lib/libcrypto.so" "," openssl "/lib/libssl.so")))
               #t)))
         (add-after 'unpack 'disable-broken-tests
           (lambda _
             ;; This test is broken as there is no keyboard interrupt.
             (substitute* "tests/test_trust_list.py"
               (("^(.*)class TrustListTests" line indent)
                (string-append indent
                               "@unittest.skip(\"Disabled by Guix\")\n"
                               line)))
             (substitute* "tests/test_tls.py"
               (("^(.*)class TLSTests" line indent)
                (string-append indent
                               "@unittest.skip(\"Disabled by Guix\")\n"
                               line)))
             #t))
         (replace 'check
           (lambda _
             (invoke "python" "run.py" "tests")
             #t)))))
    (home-page "https://github.com/wbond/oscrypto")
    (synopsis "Compiler-free Python crypto library backed by the OS")
    (description "oscrypto is a compilation-free, always up-to-date encryption library for Python.")
    (license license:expat)))

(define-public python-oscryptotests
  (package (inherit python-oscrypto)
    (name "python-oscryptotests")
    (propagated-inputs
      (list python-oscrypto))
    (arguments
     `(#:tests? #f
       #:phases
       (modify-phases %standard-phases
         (add-after 'unpack 'hard-code-path-to-libscrypt
           (lambda* (#:key inputs #:allow-other-keys)
             (chdir "tests")
             #t)))))))

(define-public python-certvalidator
  (let ((commit "a145bf25eb75a9f014b3e7678826132efbba6213"))
    (package
      (name "python-certvalidator")
      (version (git-version "0.1" "1" commit))
      (source
       (origin
         (method git-fetch)
         (uri (git-reference
               (url "https://github.com/achow101/certvalidator")
               (commit commit)))
         (file-name (git-file-name name commit))
         (sha256
          (base32
           "1qw2k7xis53179lpqdqyylbcmp76lj7sagp883wmxg5i7chhc96k"))))
      (build-system python-build-system)
      (propagated-inputs
        (list python-asn1crypto
              python-oscrypto
              python-oscryptotests)) ;; certvalidator tests import oscryptotests
      (arguments
       `(#:phases
         (modify-phases %standard-phases
           (add-after 'unpack 'disable-broken-tests
             (lambda _
               (substitute* "tests/test_certificate_validator.py"
                 (("^(.*)class CertificateValidatorTests" line indent)
                  (string-append indent
                                 "@unittest.skip(\"Disabled by Guix\")\n"
                                 line)))
               (substitute* "tests/test_crl_client.py"
                 (("^(.*)def test_fetch_crl" line indent)
                  (string-append indent
                                 "@unittest.skip(\"Disabled by Guix\")\n"
                                 line)))
               (substitute* "tests/test_ocsp_client.py"
                 (("^(.*)def test_fetch_ocsp" line indent)
                  (string-append indent
                                 "@unittest.skip(\"Disabled by Guix\")\n"
                                 line)))
               (substitute* "tests/test_registry.py"
                 (("^(.*)def test_build_paths" line indent)
                  (string-append indent
                                 "@unittest.skip(\"Disabled by Guix\")\n"
                                 line)))
               (substitute* "tests/test_validate.py"
                 (("^(.*)def test_revocation_mode_hard" line indent)
                  (string-append indent
                                 "@unittest.skip(\"Disabled by Guix\")\n"
                                 line)))
               (substitute* "tests/test_validate.py"
                 (("^(.*)def test_revocation_mode_soft" line indent)
                  (string-append indent
                                 "@unittest.skip(\"Disabled by Guix\")\n"
                                 line)))
               #t))
           (replace 'check
             (lambda _
               (invoke "python" "run.py" "tests")
               #t)))))
      (home-page "https://github.com/wbond/certvalidator")
      (synopsis "Python library for validating X.509 certificates and paths")
      (description "certvalidator is a Python library for validating X.509
certificates or paths. Supports various options, including: validation at a
specific moment in time, whitelisting and revocation checks.")
      (license license:expat))))

(define-public python-signapple
  (let ((commit "85bfcecc33d2773bc09bc318cec0614af2c8e287"))
    (package
      (name "python-signapple")
      (version (git-version "0.2.0" "1" commit))
      (source
       (origin
         (method git-fetch)
         (uri (git-reference
               (url "https://github.com/achow101/signapple")
               (commit commit)))
         (file-name (git-file-name name commit))
         (sha256
          (base32
           "17yqjll8nw83q6dhgqhkl7w502z5vy9sln8m6mlx0f1c10isg8yg"))))
      (build-system pyproject-build-system)
      (propagated-inputs
        (list python-asn1crypto
              python-oscrypto
              python-certvalidator
              python-elfesteem))
      (native-inputs (list python-poetry-core))
      ;; There are no tests, but attempting to run python setup.py test leads to
      ;; problems, just disable the test
      (arguments '(#:tests? #f))
      (home-page "https://github.com/achow101/signapple")
      (synopsis "Mach-O binary signature tool")
      (description "signapple is a Python tool for creating, verifying, and
inspecting signatures in Mach-O binaries.")
      (license license:expat))))

(define-public mingw-w64-base-gcc
  (package
    (inherit base-gcc)
    (arguments
      (substitute-keyword-arguments (package-arguments base-gcc)
        ((#:configure-flags flags)
          `(append ,flags
            ;; https://gcc.gnu.org/install/configure.html
            (list "--enable-threads=posix",
                  "--enable-default-ssp=yes",
                  building-on)))))))

(define-public linux-base-gcc
  (package
    (inherit base-gcc)
    (arguments
      (substitute-keyword-arguments (package-arguments base-gcc)
        ((#:configure-flags flags)
          `(append ,flags
            ;; https://gcc.gnu.org/install/configure.html
            (list "--enable-initfini-array=yes",
                  "--enable-default-ssp=yes",
                  "--enable-default-pie=yes",
                  "--enable-standard-branch-protection=yes",
                  building-on)))
        ((#:phases phases)
          `(modify-phases ,phases
            ;; Given a XGCC package, return a modified package that replace each instance of
            ;; -rpath in the default system spec that's inserted by Guix with -rpath-link
            (add-after 'pre-configure 'replace-rpath-with-rpath-link
             (lambda _
               (substitute* (cons "gcc/config/rs6000/sysv4.h"
                                  (find-files "gcc/config"
                                              "^gnu-user.*\\.h$"))
                 (("-rpath=") "-rpath-link="))
               #t))))))))

(define-public glibc-2.31
  (let ((commit "7b27c450c34563a28e634cccb399cd415e71ebfe"))
  (package
    (inherit glibc) ;; 2.35
    (version "2.31")
    (source (origin
              (method git-fetch)
              (uri (git-reference
                    (url "https://sourceware.org/git/glibc.git")
                    (commit commit)))
              (file-name (git-file-name "glibc" commit))
              (sha256
               (base32
                "017qdpr5id7ddb4lpkzj2li1abvw916m3fc6n7nw28z4h5qbv2n0"))
              (patches (search-our-patches "glibc-guix-prefix.patch"))))
    (arguments
      (substitute-keyword-arguments (package-arguments glibc)
        ((#:configure-flags flags)
          `(append ,flags
            ;; https://www.gnu.org/software/libc/manual/html_node/Configuring-and-compiling.html
            (list "--enable-stack-protector=all",
                  "--enable-cet",
                  "--enable-bind-now",
                  "--disable-werror",
                  "--disable-timezone-tools",
                  "--disable-profile",
                  building-on)))
    ((#:phases phases)
        `(modify-phases ,phases
           (add-before 'configure 'set-etc-rpc-installation-directory
             (lambda* (#:key outputs #:allow-other-keys)
               ;; Install the rpc data base file under `$out/etc/rpc'.
               ;; Otherwise build will fail with "Permission denied."
               ;; Can be removed when we are building 2.32 or later.
               (let ((out (assoc-ref outputs "out")))
                 (substitute* "sunrpc/Makefile"
                   (("^\\$\\(inst_sysconfdir\\)/rpc(.*)$" _ suffix)
                    (string-append out "/etc/rpc" suffix "\n"))
                   (("^install-others =.*$")
                    (string-append "install-others = " out "/etc/rpc\n")))))))))))))

(packages->manifest
 (append
  (list ;; The Basics
        bash-minimal
        which
        coreutils-minimal
        util-linux
        ;; File(system) inspection
        file
        grep
        diffutils
        findutils
        ;; File transformation
        patch
        gawk
        sed
        moreutils
        ;; Compression and archiving
        tar
        gzip
        xz
        ;; Build tools
        gcc-toolchain-12
        cmake-minimal
        gnu-make
        libtool
        autoconf-2.71
        automake
        pkg-config
        imagemagick
        libicns
        librsvg-2.40
        ;; Scripting
        python-minimal ;; (3.10)
        ;; Git
        git-minimal
        ;; Tests
        python-lief)
  (let ((target (getenv "HOST")))
    (cond ((string-suffix? "-mingw32" target)
           (list font-tuffy zip
                 (make-mingw-pthreads-cross-toolchain "x86_64-w64-mingw32")
                 nsis-x86_64
                 nss-certs
                 osslsigncode))
          ((string-contains target "-linux-")
           (list bison
                 (list gcc-toolchain-12 "static")
                 (make-bitcoin-cross-toolchain target)))
          ((string-contains target "darwin")
           (list clang-toolchain-18
                 lld-18
                 (make-lld-wrapper lld-18 #:lld-as-ld? #t)
                 python-signapple
                 zip))
          (else '())))))
