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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

# This file is sorely for development environment setup purpose.
# No packaging code should be included, Nix is optional (good to have).

{
	description = "Plac monorepo";

	inputs = {
		nixpkgs = {
			url = "github:nixos/nixpkgs/release-25.05";
		};

		flake-utils = {
			url = "github:numtide/flake-utils";
		};
	};

	outputs =
		{ self
		, nixpkgs
		, flake-utils
		}:
		flake-utils.lib.eachDefaultSystem (system: let
			pkgs = nixpkgs.legacyPackages.${system};
			lib = pkgs.lib;
		in {
			devShell = pkgs.mkShell {
				packages = with pkgs; [
					# --- Common

					# > Source Code Beautifier for C, C++, C#, ObjectiveC, D, Java, Pawn and VALA
					# https://uncrustify.sourceforge.net/
					uncrustify

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

					# For text editors, optional.
					# > ZLS is a non-official implementation of the Language Server Protocol for Zig
					# https://github.com/zigtools/zls
					zls

					# --- GTK-Adwaita

					# Runtime dependency.
					# > The GTK toolkit
					# https://docs.gtk.org/gtk4/
					gtk4

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

					# Provides styles and widgets following GNOME Human Interface Guideline.
					# Runtime dependency.
					# (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.
					# Runtime dependency.
					# > 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.
					# Runtime dependency.
					# https://wiki.gnome.org/Projects/Libgee
					# https://valadoc.org/gee-0.8/index.htm
					libgee

					# > 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

					# For text editors, optional.
					# >  Code Intelligence for Vala & Genie
					# https://github.com/vala-lang/vala-language-server
					vala-language-server

					# --- Misc

					# Code formatter
					# https://dprint.dev/
					dprint

					# Copyright and license linter based on SPDX
					# https://github.com/fsfe/reuse-tool
					reuse
				]
				# Non macOS packages (not supported, broken, etc.)
				++ (lib.optionals (!stdenv.isDarwin) [
					# --- CLI

					# For debugging, optional.
					# > Valgrind is an instrumentation framework for building dynamic analysis tools
					# https://valgrind.org/
					valgrind
				]);
			};
		});
}