{ lib, pkgs, flakes, ... }:

let
  m = pkgs.mpvScripts;
  a4k = lib.mkIf (m ? anime4k);
in

{
  #home.packages = with pkgs; [ mpv ];

  programs.mpv.enable = true;
  programs.mpv.bindings."n"       = "sub-seek  1";
  programs.mpv.bindings."SHIFT+n" = "sub-seek -1";
  programs.mpv.bindings."b"       = ''cycle-values audio-channels 2 5 7 "auto"'';

  # m.anime4k - from https://github.com/NixOS/nixpkgs/pull/273830
  # TODO: add to home-manager?
  programs.mpv.bindings."CTRL+0" = a4k ''no-osd change-list glsl-shaders clr ""; show-text "GLSL shaders cleared"'';
  programs.mpv.bindings."CTRL+1" = a4k ''no-osd change-list glsl-shaders set "${m.anime4k}/Anime4K_Clamp_Highlights.glsl:${m.anime4k}/Anime4K_Restore_CNN_VL.glsl:${m.anime4k}/Anime4K_Upscale_CNN_x2_VL.glsl:${m.anime4k}/Anime4K_AutoDownscalePre_x2.glsl:${m.anime4k}/Anime4K_AutoDownscalePre_x4.glsl:${m.anime4k}/Anime4K_Upscale_CNN_x2_M.glsl"; show-text "Anime4K: Mode A (HQ)"'';
  programs.mpv.bindings."CTRL+2" = a4k ''no-osd change-list glsl-shaders set "${m.anime4k}/Anime4K_Clamp_Highlights.glsl:${m.anime4k}/Anime4K_Restore_CNN_Soft_VL.glsl:${m.anime4k}/Anime4K_Upscale_CNN_x2_VL.glsl:${m.anime4k}/Anime4K_AutoDownscalePre_x2.glsl:${m.anime4k}/Anime4K_AutoDownscalePre_x4.glsl:${m.anime4k}/Anime4K_Upscale_CNN_x2_M.glsl"; show-text "Anime4K: Mode B (HQ)"'';
  programs.mpv.bindings."CTRL+3" = a4k ''no-osd change-list glsl-shaders set "${m.anime4k}/Anime4K_Clamp_Highlights.glsl:${m.anime4k}/Anime4K_Upscale_Denoise_CNN_x2_VL.glsl:${m.anime4k}/Anime4K_AutoDownscalePre_x2.glsl:${m.anime4k}/Anime4K_AutoDownscalePre_x4.glsl:${m.anime4k}/Anime4K_Upscale_CNN_x2_M.glsl"; show-text "Anime4K: Mode C (HQ)"'';
  programs.mpv.bindings."CTRL+4" = a4k ''no-osd change-list glsl-shaders set "${m.anime4k}/Anime4K_Clamp_Highlights.glsl:${m.anime4k}/Anime4K_Restore_CNN_VL.glsl:${m.anime4k}/Anime4K_Upscale_CNN_x2_VL.glsl:${m.anime4k}/Anime4K_Restore_CNN_M.glsl:${m.anime4k}/Anime4K_AutoDownscalePre_x2.glsl:${m.anime4k}/Anime4K_AutoDownscalePre_x4.glsl:${m.anime4k}/Anime4K_Upscale_CNN_x2_M.glsl"; show-text "Anime4K: Mode A+A (HQ)"'';
  programs.mpv.bindings."CTRL+5" = a4k ''no-osd change-list glsl-shaders set "${m.anime4k}/Anime4K_Clamp_Highlights.glsl:${m.anime4k}/Anime4K_Restore_CNN_Soft_VL.glsl:${m.anime4k}/Anime4K_Upscale_CNN_x2_VL.glsl:${m.anime4k}/Anime4K_AutoDownscalePre_x2.glsl:${m.anime4k}/Anime4K_AutoDownscalePre_x4.glsl:${m.anime4k}/Anime4K_Restore_CNN_Soft_M.glsl:${m.anime4k}/Anime4K_Upscale_CNN_x2_M.glsl"; show-text "Anime4K: Mode B+B (HQ)"'';
  programs.mpv.bindings."CTRL+6" = a4k ''no-osd change-list glsl-shaders set "${m.anime4k}/Anime4K_Clamp_Highlights.glsl:${m.anime4k}/Anime4K_Upscale_Denoise_CNN_x2_VL.glsl:${m.anime4k}/Anime4K_AutoDownscalePre_x2.glsl:${m.anime4k}/Anime4K_AutoDownscalePre_x4.glsl:${m.anime4k}/Anime4K_Restore_CNN_M.glsl:${m.anime4k}/Anime4K_Upscale_CNN_x2_M.glsl"; show-text "Anime4K: Mode C+A (HQ)"'';
  /**/

  programs.mpv.scripts = [
    #m.thumbnail # TOO SLOW
    m.thumbfast
    m.mpris
    (m.mpv-webm or flakes.self.pkgs.mpv-webm) # activate with SHIFT+W
    # from https://github.com/mpv-player/mpv/issues/9767#issuecomment-1024831645
    ({ scriptName = "dynamic-subs.lua"; } // (pkgs.writeTextDir "share/mpv/scripts/dynamic-subs.lua" ''
      mp.add_hook('on_load', 10, function()
        sub_paths = {'Subs'}
        sub_paths[#sub_paths+1]='Subs/' .. mp.get_property('filename/no-ext')
        mp.set_property_native('sub-file-paths', sub_paths)
      end)
    ''))
  ];
  #programs.mpv.config.osc = "no"; # likely a 'thumbnail' requirement

  # dynamic-subs.lua
  programs.mpv.config.sub-auto = "all";

  #https://nixos.wiki/wiki/Accelerated_Video_Playback
  programs.mpv.config.hwdec       = "auto-safe";
  programs.mpv.config.vo          = "gpu";
  programs.mpv.config.profile     = "gpu-hq";
  programs.mpv.config.gpu-context = "wayland";
}