wezterm: implement theme picker

home/modules/wezterm.nix

@@ -18,7 +18,7 @@ in
     home.packages = with pkgs; [ wezterm ];
     home.file = {
       ".config/wezterm/wezterm.lua".text = replaceStrings
-        [ ''"FONTSIZE"'' ]
+        [ ''"FONT_SIZE"'' ]
         [ (toString cfg.fontsize) ]
         (readFile ./wezterm/wezterm.lua);
     };

home/modules/wezterm/wezterm.lua

@@ -1,42 +1,64 @@
 local wezterm = require 'wezterm'
+local act = wezterm.action
 
-return {
-	-- https://github.com/rebelot/kanagawa.nvim/blob/master/extras/wezterm.lua
-	force_reverse_video_cursor = true,
-	colors = {
-		foreground = "#dcd7ba",
-		background = "#1f1f28",
+local function setTheme(window, _, _, label)
+	wezterm.log_info("Switching to: " .. label)
+	local overrides = window:get_config_overrides() or {}
+	overrides.color_scheme = label
+	window:set_config_overrides(overrides)
+end
 
-		cursor_bg = "#c8c093",
-		cursor_fg = "#c8c093",
-		cursor_border = "#c8c093",
+local function themePicker(window, pane)
+	-- get builting color schemes
+	local schemes = wezterm.get_builtin_color_schemes()
+	local choices = {}
 
-		selection_fg = "#c8c093",
-		selection_bg = "#2d4f67",
+	-- populate theme names in choices list
+	for key, _ in pairs(schemes) do
+		table.insert(choices, { id = tostring(key), label = tostring(key) })
+	end
 
-		scrollbar_thumb = "#16161d",
-		split = "#16161d",
+	-- sort choices list
+	table.sort(choices, function(c1, c2)
+		return c1.label < c2.label
+	end)
 
-		ansi = { "#090618", "#c34043", "#76946a", "#c0a36e", "#7e9cd8", "#957fb8", "#6a9589", "#c8c093" },
-		brights = { "#727169", "#e82424", "#98bb6c", "#e6c384", "#7fb4ca", "#938aa9", "#7aa89f", "#dcd7ba" },
-		indexed = { [16] = "#ffa066", [17] = "#ff5d62" },
-	},
+	window:perform_action(
+		act.InputSelector {
+			action = wezterm.action_callback(setTheme),
+			title = "🎨 Pick a Theme!",
+			choices = choices,
+			fuzzy = true,
+		},
+		pane
+	)
+end
+
+
+return {
+	color_scheme                 = 'Kanagawa (Gogh)',
 
-	font = wezterm.font_with_fallback({
+	font                         = wezterm.font_with_fallback({
 		"JetBrains Mono",
 		{ family = "Symbols Nerd Font Mono", scale = 0.95 },
 	}),
-	font_size = "FONTSIZE",
-	warn_about_missing_glyphs = false,
+	font_size                    = "FONT_SIZE",
+
+	keys                         = {
+		{ key = "t", mods = "CMD",       action = wezterm.action_callback(themePicker) },
+		{ key = "t", mods = "CMD|SHIFT", action = wezterm.action.ShowDebugOverlay },
+	},
+	warn_about_missing_glyphs    = false,
 
-	window_decorations = 'RESIZE',
+	window_decorations           = 'RESIZE',
 	hide_tab_bar_if_only_one_tab = true,
 
-	visual_bell = {
+	visual_bell                  = {
 		fade_in_function = 'EaseIn',
 		fade_in_duration_ms = 50,
 		fade_out_function = 'EaseOut',
 		fade_out_duration_ms = 50,
 	},
-	audible_bell = 'Disabled',
+	audible_bell                 = 'Disabled',
 }
+