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{ config, lib, ... }:
let
  cfg = config.beeMods.dwm.picom;
in
{
  services.picom = {
    enable = cfg.enable;
    backend = "glx";
    vSync = true;

    activeOpacity = if cfg.window.blur.enable then 0.87 else cfg.window.opacity.active;
    inactiveOpacity = if cfg.window.blur.enable then 0.87 else cfg.window.opacity.inactive;

    opacityRules = [
      "100:fullscreen"
      "100:_NET_WM_STATE@:32a *= '_NET_WM_STATE_FULLSCREEN'"
    ];
    settings = {
      blur = {
        method = "dual_kawase";
        strength = cfg.window.blur.strength;
        size = cfg.window.blur.size;
      };
      blur-background = cfg.window.blur.enable;
      blur-background-exclude = [
        "window_type = 'dock'"
        "window_type = 'desktop'"
        "class_g = 'slop'"
        "class_g = 'dwm'"
        "_GTK_FRAME_EXTENTS@"
        "fullscreen"
        "_NET_WM_STATE@:32a *= '_NET_WM_STATE_FULLSCREEN'"
      ];

      # xrender-sync-fence = true;
      use-damage = true;

      unredir-if-possible = true;

      detect-transient = true;
      detect-client-opacity = true;
      mark-wmwin-focused = true;
      mark-ovredir-focused = true;
      detect-rounded-corners = true;

      shadow = cfg.shadow;
      fading = false;
      animations = cfg.animations;
    };
  };

  # systemd.user.services.picom.Install.wantedBy = lib.mkForce [ ];
  systemd.user.services.picom = lib.mkIf cfg.enable {
    Unit = {
      ConditionEnvironment = "XDG_SESSION_TYPE=x11";
    };
  };
}