flake.nix

{
  description = ''
    A collection of various wallpapers, packed with a Nix Flake
    for easier organization and curation.
  '';

  outputs = {
    self,
    nixpkgs,
  }: let
    inherit (nixpkgs) lib;
    genSystems = lib.genAttrs [
      # Add more systems if they are supported
      "aarch64-linux"
      "aarch64-darwin"
      "x86_64-linux"
      "x86_64-darwin"
    ];
    pkgsFor = nixpkgs.legacyPackages;

    version = props.version + "_" + (self.shortRev or "dirty");

    props = builtins.fromJSON (builtins.readFile ./nix/props.json);
    /*
    mkDate = longDate: (lib.concatStringsSep "-" [
      (builtins.substring 0 4 longDate)
      (builtins.substring 4 2 longDate)
      (builtins.substring 6 2 longDate)
    ]);
    */
  in {
    overlays.default = _: prev: let
      stdenv = prev.stdenvNoCC;
    in rec {
      full = wallpkgs;
      wallpkgs = prev.callPackage ./nix/default.nix {
        inherit version stdenv;
        style = null;
      };

      catppuccin = prev.callPackage ./nix/default.nix {
        inherit version stdenv;
        style = "catppuccin";
      };

      cities = prev.callPackage ./nix/default.nix {
        inherit version stdenv;
        style = "cities";
      };

      monochrome = prev.callPackage ./nix/default.nix {
        inherit version stdenv;
        style = "monochrome";
      };

      nature = prev.callPackage ./nix/default.nix {
        inherit version stdenv;
        style = "nature";
      };

      space = prev.callPackage ./nix/default.nix {
        inherit version stdenv;
        style = "space";
      };

      unorganized = prev.callPackage ./nix/default.nix {
        inherit version stdenv;
        style = "unorganized";
      };
    };

    packages = genSystems (system:
      (self.overlays.default null pkgsFor.${system})
      // {
        default = self.packages.${system}.wallpkgs;
      });

    formatter = genSystems (system: pkgsFor.${system}.alejandra);
  };
}