# This file is heavily inspired by <nixpkgs/nixos/release.nix>
{ nixpkgs ? <nixpkgs> # builtins.fetchTarball https://github.com/NixOS/nixpkgs-channels/archive/nixos-20.03.tar.gz
, targetSystem ? builtins.currentSystem
, speak ? ./. #builtins.fetchGit ./.
, configuration ? ./extra/exampleConfig.nix #{ imports = [ (speak + builtins.toPath "/options/espeak.nix") ]; config.speak.enable = true; config.sound.enable = true; }
}:

with builtins;
with import (nixpkgs + (toPath "/lib"));

let
  pkgs = import nixpkgs { system = targetSystem; };
  tarball = pkgs.releaseTools.sourceTarball {
    name = "speak-tarball";
    src = speak;
  };
  modulePath = (nixpkgs + (toPath "/nixos/modules"));
  makeTarget = target:
    with import nixpkgs { system = targetSystem; };
    ((import (nixpkgs + (toPath "/nixos/lib/eval-config.nix")) {
        system = targetSystem;
        modules = target.modules ++ [ configuration ];
    }).config.system.build);
  makeSubTargets = target: {
    isoImage = hydraJob (makeTarget (mergeAttrsConcatenateValues target {
      modules = [
        { isoImage.isoBaseName = "nixos-${target.name}"; }
      ];
    })).isoImage;
    tarball = hydraJob (makeTarget (mergeAttrsConcatenateValues target {
      modules = [ (modulePath + toPath "/installer/cd-dvd/system-tarball.nix") ];
    })).tarball;
    vm = (makeTarget (mergeAttrsConcatenateValues target {
      modules = [ (modulePath + toPath "/virtualisation/qemu-vm.nix") { config.virtualisation.qemu.options = [ "-soundhw hda" ]; } ];
    })).vm;
  };
  targets = rec {
    minimal = {
      name = "minimal";
      modules = [
        (modulePath + (toPath "/installer/cd-dvd/installation-cd-minimal.nix"))
        (modulePath + (toPath "/installer/cd-dvd/channel.nix"))
      ];
    };
    mate = {
      name = "mate";
      modules = [
        (modulePath + (toPath "/installer/cd-dvd/installation-cd-graphical-base.nix"))
        ./modules/mate.nix
        (modulePath + (toPath "/installer/cd-dvd/channel.nix"))
      ];
    };
  };
  allTargets = mapAttrs (name: value: (makeSubTargets value)) targets;
in {
  inherit tarball;
  image = allTargets;
  pkgs.espeakup = hydraJob (pkgs.callPackage ./pkgs/espeakup.nix {});
}