#
#  Hyprland Configuration
#  Enable with "hyprland.enable = true;"
#
{
  config,
  lib,
  system,
  pkgs,
  unstable,
  hyprland,
  vars,
  host,
  split-monitor-workspaces,
  ...
}: let
  hyprlandconf = ''
    monitor = DP-1,1920x1080@75,auto,auto
    monitor = DP-3,2560x1440@144,auto,auto
    monitor = ,preferred,auto,auto

    source = ~/.config/hypr/mocha.conf

    exec-once = waybar
    exec-once = dunst
    exec-once = swww init && swww img ~/.wallpapers/robot.jpg
    exec-once = signal-desktop --start-in-tray
    exec-once = webcord --start-minimized

    env = XCURSOR_SIZE,24
    env = LIBVA_DRIVER_NAME,nvidia
    env = XDG_SESSION_TYPE,wayland
    env = GBM_BACKEND,nvidia-drm
    env = __GLX_VENDOR_LIBRARY_NAME,nvidia
    env = WLR_NO_HARDWARE_CURSORS,1
    env = NIXOS_OZONE_WL,1 # for any ozone-based browser & electron apps to run on wayland
    env = MOZ_ENABLE_WAYLAND,1 # for firefox to run on wayland
    env = MOZ_WEBRENDER,1

    plugin {
        split-monitor-workspaces {
            count = 9
        }
    }

    input {
        kb_layout = de
        kb_variant =
        kb_model =
        kb_options =
        kb_rules =

        follow_mouse = 1

        touchpad {
            natural_scroll = no
        }

        sensitivity = 0 # -1.0 - 1.0, 0 means no modification.
    }

    general {
        gaps_in = 5
        gaps_out = 5
        border_size = 2
        col.active_border = $teal
        col.inactive_border = $tealAlpha

        layout = dwindle
    }

    misc {
      disable_hyprland_logo = true
      vrr = true
      vfr = true
    }

    decoration {
        screen_shader = ~/.config/hypr/shaders/nightlight.frag

        rounding = 10

        blur {
            enabled = true
            size = 3
            passes = 1
        }

        drop_shadow = yes
        shadow_range = 4
        shadow_render_power = 3
        col.shadow = rgba(1a1a1aee)
    }

    animations {
        enabled = yes

        bezier = myBezier, 0.05, 0.9, 0.1, 1.05

        animation = windows, 1, 7, myBezier
        animation = windowsOut, 1, 7, default, popin 80%
        animation = border, 1, 10, default
        animation = borderangle, 1, 8, default
        animation = fade, 1, 7, default
        animation = workspaces, 1, 6, default
    }

    dwindle {
        pseudotile = yes # master switch for pseudotiling. Enabling is bound to mainMod + P in the keybinds section below
        preserve_split = yes # you probably want this
    }

    master {
        new_is_master = true
    }

    gestures {
        workspace_swipe = off
    }

    $mainMod = SUPER

    bind = $mainMod, RETURN, exec, alacritty
    bind = $mainMod, SPACE, exec, rofi -i -show drun -modi drun -show-icons
    bind = SUPER_SHIFT, C, killactive,
    bind = SUPER_SHIFT, Q, exit,
    bind = $mainMod, V, togglefloating,
    bind = $mainMod, P, pseudo, # dwindle
    bind = $mainMod, J, togglesplit, # dwindle
    bind = $mainMod, O, split-changemonitorsilent,next
    # Move focus with mainMod + arrow keys
    bind = $mainMod, left, movefocus, l
    bind = $mainMod, right, movefocus, r
    bind = $mainMod, up, movefocus, u
    bind = $mainMod, down, movefocus, d

    # Switch workspaces with mainMod + [0-9]
    bind = $mainMod, 1, split-workspace, 1
    bind = $mainMod, 2, split-workspace, 2
    bind = $mainMod, 3, split-workspace, 3
    bind = $mainMod, 4, split-workspace, 4
    bind = $mainMod, 5, split-workspace, 5
    bind = $mainMod, 6, split-workspace, 6
    bind = $mainMod, 7, split-workspace, 7
    bind = $mainMod, 8, split-workspace, 8
    bind = $mainMod, 9, split-workspace, 9
    bind = $mainMod, 0, split-workspace, 10

    # Move active window to a workspace with mainMod + SHIFT + [0-9]
    bind = $mainMod SHIFT, 1, split-movetoworkspace, 1
    bind = $mainMod SHIFT, 2, split-movetoworkspace, 2
    bind = $mainMod SHIFT, 3, split-movetoworkspace, 3
    bind = $mainMod SHIFT, 4, split-movetoworkspace, 4
    bind = $mainMod SHIFT, 5, split-movetoworkspace, 5
    bind = $mainMod SHIFT, 6, split-movetoworkspace, 6
    bind = $mainMod SHIFT, 7, split-movetoworkspace, 7
    bind = $mainMod SHIFT, 8, split-movetoworkspace, 8
    bind = $mainMod SHIFT, 9, split-movetoworkspace, 9
    bind = $mainMod SHIFT, 0, split-movetoworkspace, 10

    # Move/resize windows with mainMod + LMB/RMB and dragging
    bindm = $mainMod, mouse:272, movewindow
    bindm = $mainMod, mouse:273, resizewindow

    bind = SUPERSHIFT, V, exec, cliphist list | rofi -dmenu | cliphist decode | wl-copy
    bind = $mainMod, L, exec, librewolf
    bind = $mainMod SHIFT, L, exec, librewolf --private-window
  '';
in
  with lib;
  with host; {
    options = {
      hyprland = {
        enable = mkOption {
          type = types.bool;
          default = false;
        };
      };
    };

    config = mkIf (config.hyprland.enable) {
      environment = {
        systemPackages = with pkgs;
          [
            grim # Grab Images
            slurp # Region Selector
            wl-clipboard # Clipboard
            wlr-randr # Monitor Settings
            dunst
            cliphist
            rofi-wayland
            swww
          ]
          ++ (with unstable; [waybar]);
        # sessionVariables = {
        #   "NIXOS_OZONE_WL" = "1"; # for any ozone-based browser & electron apps to run on wayland
        #   "MOZ_ENABLE_WAYLAND" = "1"; # for firefox to run on wayland
        #   "MOZ_WEBRENDER" = "1";
        #
        #   # for hyprland with nvidia gpu, ref https://wiki.hyprland.org/Nvidia/
        #   "LIBVA_DRIVER_NAME" = "nvidia";
        #   "XDG_SESSION_TYPE" = "wayland";
        #   "GBM_BACKEND" = "nvidia-drm";
        #   "__GLX_VENDOR_LIBRARY_NAME" = "nvidia";
        #   "WLR_NO_HARDWARE_CURSORS" = "1";
        #   "WLR_EGL_NO_MODIFIRES" = "1";
        # };
      };

      programs = {
        hyprland = {
          # Window Manager
          enable = true;
          xwayland.enable = true;
          enableNvidiaPatches =
            if hostName == "desktop"
            then true
            else false;
        };
      };

      hardware = {
        opengl = {
          enable = true;
        };
      };

      xdg.portal = {
        enable = true;
        extraPortals = with pkgs; [xdg-desktop-portal-gtk];
      };

      home-manager.users.${vars.user} = {
        imports = [hyprland.homeManagerModules.default];

        home.file.".config/hypr/" = {
          source = ../../rsc/config/hypr;
          recursive = true;
        };

        home.file.".config/waybar" = {
          source = ../../rsc/config/waybar;
          recursive = true;
        };

        home.file.".config/dunst" = {
          source = ../../rsc/config/dunst;
          recursive = true;
        };

        home.file.".config/rofi" = {
          source = ../../rsc/config/rofi;
          recursive = true;
        };

        home.file.".wallpapers" = {
          source = ../../rsc/wallpaper;
          recursive = true;
        };

        programs.waybar.package = pkgs.waybar.overrideAttrs (oa: {
          mesonFlags = (oa.mesonFlags or []) ++ ["-Dexperimental=true"];
          patches =
            (oa.patches or [])
            ++ [
              (pkgs.fetchpatch {
                name = "fix waybar hyprctl";
                url = "https://aur.archlinux.org/cgit/aur.git/plain/hyprctl.patch?h=waybar-hyprland-git";
                sha256 = "sha256-pY3+9Dhi61Jo2cPnBdmn3NUTSA8bAbtgsk2ooj4y7aQ=";
              })
            ];
        });

        wayland.windowManager.hyprland = {
          enable = true;
          systemdIntegration = true;
          extraConfig = hyprlandconf;
          plugins = [
            split-monitor-workspaces.packages.${pkgs.system}.split-monitor-workspaces
          ];
        };
      };

      nix.settings = {
        substituters = ["https://hyprland.cachix.org"];
        trusted-public-keys = ["hyprland.cachix.org-1:a7pgxzMz7+chwVL3/pzj6jIBMioiJM7ypFP8PwtkuGc="];
      }; # Cache
    };
  }