{ config, lib, ... }:
let
  c          = config.theme.colors;
  proportion = toString config.myConfig.niri.defaultColumnProportion;
  presetWidths = builtins.concatStringsSep "\n        "
    (map (p: "proportion ${toString p}") config.myConfig.niri.presetColumnWidths);
in
{
  options.myConfig.niri = {
    defaultColumnProportion = lib.mkOption {
      type        = lib.types.float;
      default     = 0.5;
      description = "Default column width proportion";
    };
    presetColumnWidths = lib.mkOption {
      type        = lib.types.listOf lib.types.float;
      default     = [ 0.33333 0.5 0.66667 ];
      description = "Preset column width proportions";
    };
  };

  config = {
    home.file.".config/xdg-desktop-portal/portals.conf".text = ''
      [preferred]
      default=gtk
      org.freedesktop.impl.portal.Screenshot=gnome
      org.freedesktop.impl.portal.ScreenCast=gnome
    '';
    home.file.".config/niri/config.kdl" = {
      force = true;
      text = ''
        config-notification {
            disable-failed
        }

        gestures {
            hot-corners {
                off
            }
        }

        input {
            keyboard {
                xkb { }
                numlock
            }
            touchpad {
                tap
                natural-scroll
            }
            mouse { }
            trackpoint { }
        }

        layout {
            background-color "transparent"
            center-focused-column "never"
            preset-column-widths {
                ${presetWidths}
            }
            default-column-width { proportion ${proportion}; }
            border {
                off
                width 4
                active-color   "#707070"
                inactive-color "#d0d0d0"
                urgent-color   "${c.red_b}"
            }
            shadow {
                softness 30
                spread 5
                offset x=0 y=5
                color "#0007"
            }
            struts { }
        }

        layer-rule {
            match namespace="^quickshell$"
            place-within-backdrop true
        }

        overview {
            workspace-shadow {
                off
            }
        }

        environment {
            XDG_CURRENT_DESKTOP "niri"
        }

        hotkey-overlay {
            skip-at-startup
        }

        prefer-no-csd
        screenshot-path "~/Pictures/Screenshots/Screenshot from %Y-%m-%d %H-%M-%S.png"

        animations {
            workspace-switch {
                spring damping-ratio=0.80 stiffness=523 epsilon=0.0001
            }
            window-open {
                duration-ms 150
                curve "ease-out-expo"
            }
            window-close {
                duration-ms 150
                curve "ease-out-quad"
            }
            horizontal-view-movement {
                spring damping-ratio=0.85 stiffness=423 epsilon=0.0001
            }
            window-movement {
                spring damping-ratio=0.75 stiffness=323 epsilon=0.0001
            }
            window-resize {
                spring damping-ratio=0.85 stiffness=423 epsilon=0.0001
            }
            config-notification-open-close {
                spring damping-ratio=0.65 stiffness=923 epsilon=0.001
            }
            screenshot-ui-open {
                duration-ms 200
                curve "ease-out-quad"
            }
            overview-open-close {
                spring damping-ratio=0.85 stiffness=800 epsilon=0.0001
            }
        }

        window-rule {
            match app-id=r#"^org\.wezfurlong\.wezterm$"#
            default-column-width {}
        }
        window-rule {
            match app-id=r#"^org\.gnome\."#
            draw-border-with-background false
            geometry-corner-radius 12
            clip-to-geometry true
        }
        window-rule {
            match app-id=r#"^gnome-control-center$"#
            match app-id=r#"^pavucontrol$"#
            match app-id=r#"^nm-connection-editor$"#
            default-column-width { proportion 0.5; }
            open-floating false
        }
        window-rule {
            match app-id=r#"^gnome-calculator$"#
            match app-id=r#"^galculator$"#
            match app-id=r#"^blueman-manager$"#
            match app-id=r#"^org\.gnome\.Nautilus$"#
            match app-id=r#"^xdg-desktop-portal$"#
            open-floating true
        }
        window-rule {
            match app-id=r#"^steam$"# title=r#"^notificationtoasts_\d+_desktop$"#
            default-floating-position x=10 y=10 relative-to="bottom-right"
            open-focused false
        }
        window-rule {
            match app-id=r#"^org\.wezfurlong\.wezterm$"#
            match app-id="Alacritty"
            match app-id="zen"
            match app-id="com.mitchellh.ghostty"
            match app-id="kitty"
            draw-border-with-background false
        }
        window-rule {
            match app-id=r#"firefox$"# title="^Picture-in-Picture$"
            match app-id="zoom"
            open-floating true
        }
        window-rule {
            match app-id=r#"org.quickshell$"#
            open-floating true
        }

        recent-windows {
            binds {
                Alt+Tab         { next-window scope="output"; }
                Alt+Shift+Tab   { previous-window scope="output"; }
                Alt+grave       { next-window filter="app-id"; }
                Alt+Shift+grave { previous-window filter="app-id"; }
            }
        }

        debug {
            honor-xdg-activation-with-invalid-serial
        }

        include "dms/colors.kdl"
        include "dms/layout.kdl"
        include "dms/alttab.kdl"
        include "dms/binds.kdl"
        include "dms/outputs.kdl"
        include "dms/cursor.kdl"
      '';
    };
  };
}