#
# Compositor
#

{ config, lib, pkgs, ... }:

{ 
  config = lib.mkIf (config.xsession.enable) {      # Only evaluate code if using X11
    services.picom = {
      enable = true;
      package = pkgs.picom.overrideAttrs(o: {
        src = pkgs.fetchFromGitHub {
          #repo = "picom";
          #owner = "pijulius";
          #rev = "982bb43e5d4116f1a37a0bde01c9bda0b88705b9";
          #sha256 = "YiuLScDV9UfgI1MiYRtjgRkJ0VuA1TExATA2nJSJMhM=";
          repo = "picom";
          owner = "jonaburg";
          rev = "e3c19cd7d1108d114552267f302548c113278d45";
          sha256 = "4voCAYd0fzJHQjJo4x3RoWz5l3JJbRvgIXn1Kg6nz6Y=";
        };
      });                                           # Override picom to use pijulius' version

      backend = "glx";                              # Rendering either with glx or xrender. You'll know if you need to switch this.
      vSync = true;                                 # Should fix screen tearing

      #activeOpacity = 0.93;                         # Node transparency
      #inactiveOpacity = 0.93;
      #menuOpacity = 0.93;

      shadow = false;                               # Shadows
      shadowOpacity = 0.75;
      fade = true;                                  # Fade
      fadeDelta = 10;
      opacityRules = [                              # Opacity rules if transparency is prefered
      #  "100:name = 'Picture in picture'"
      #  "100:name = 'Picture-in-Picture'"
      #  "85:class_i ?= 'rofi'"
        "80:class_i *= 'discord'"
        "80:class_i *= 'emacs'"
        "80:class_i *= 'Alacritty'"
      #  "100:fullscreen"
      ];                                            # Find with $ xprop | grep "WM_CLASS"

      settings = {
        daemon = true;
        use-damage = false;                         # Fixes flickering and visual bugs with borders
        resize-damage = 1;
        refresh-rate = 0;
        corner-radius = 5;                          # Corners
        round-borders = 5;

        # Animations Pijulius
        #animations = true;                          # All Animations
        #animation-window-mass = 0.5;
        #animation-for-open-window = "zoom";
        #animation-stiffness = 350;
        #animation-clamping = false;
        #fade-out-step = 1;                          # Will fix random border dots from not disappearing

        # Animations Jonaburg
        transition-length = 300;
        transition-pow-x = 0.5;
        transition-pow-y = 0.5;
        transition-pow-w = 0.5;
        transition-pow-h = 0.5;
        size-transition = true;

        # Extras
        detect-rounded-corners = true;              # Below should fix multiple issues
        detect-client-opacity = false;
        detect-transient = true;
        detect-client-leader = false;
        mark-wmwim-focused = true;
        mark-ovredir-focues = true;
        unredir-if-possible = true;
        glx-no-stencil = true;
        glx-no-rebind-pixmap = true;
      };                                           # Extra options for picom.conf (mostly for pijulius fork)
    };
  };
}