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# Copyright 2025 Shota FUJI
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#
# SPDX-License-Identifier: Apache-2.0

{
  stdenvNoCC,
  callPackage,
  zig,
  gtk4,
  pkg-config,
  libjpeg,
  libadwaita,
  librsvg,
  libgee,
  vala,
  coreutils,
  wrapGAppsHook4,
}:
stdenvNoCC.mkDerivation {
  pname = "plac-gtk-adwaita";
  version = "0.0.0";
  src = ../.;

  meta = {
    mainProgram = "jp.pocka.plac.gtk-adwaita";
  };

  nativeBuildInputs = [
    zig.hook

    # > Zig is a general-purpose programming language and toolchain for maintaining
    # > robust, optimal and reusable software.
    # https://ziglang.org/
    zig

    # > pkg-config is a helper tool used when compiling applications and libraries.
    # https://www.freedesktop.org/wiki/Software/pkg-config/
    pkg-config

    # > Vala is a programming language using modern high level abstractions without
    # > imposing additional runtime requirements and without using a different ABI
    # > compared to applications and libraries written in C.
    # https://vala.dev/
    vala

    # Installed for "realpath" command.
    coreutils
  ];

  buildInputs = [
    # > The GTK toolkit
    # https://docs.gtk.org/gtk4/
    gtk4

    # > Faster (using SIMD) libjpeg implementation
    # https://libjpeg-turbo.org/
    libjpeg

    # Provides styles and widgets following GNOME Human Interface Guideline.
    # (https://developer.gnome.org/hig/index.html)
    # > Building blocks for modern GNOME applications
    # https://gnome.pages.gitlab.gnome.org/libadwaita/
    # https://gnome.pages.gitlab.gnome.org/libadwaita/doc/1-latest/
    # https://valadoc.org/libadwaita-1/index.htm
    libadwaita

    # Required library for GTK4/Adwaita, albeit undocumented.
    # > A library to render SVG images to Cairo surfaces.
    # https://gitlab.gnome.org/GNOME/librsvg
    librsvg

    # Necessary library to use collection types such as HashMap and ArrayList in Vala.
    # https://wiki.gnome.org/Projects/Libgee
    # https://valadoc.org/gee-0.8/index.htm
    libgee

    # This helper takes care of GLib/GTK's messy runtime things.
    # https://nixos.org/manual/nixpkgs/stable/#sec-language-gnome
    wrapGAppsHook4
  ];

  zigBuildFlags = [
    "--system"
    (callPackage ../../core/nix/deps.nix { })
    "-Dcompile-gschema"
  ];

  # zon2nix does not support path dependency, and Zig seems not to have a way to set multiple
  # dependencies directory nor specify directory name via flags.
  postPatch = ''
    substituteInPlace build.zig.zon \
      --replace "../core" $(realpath --relative-to=. ${callPackage ../../core/nix/package.nix { }})
  '';
}