feat(Hyprland): Introduce Lua support for Hyprland configurations

- Note: We do not convert your existing conf configs to lua. This update only reflects DMS defaults state
- Updated README.md to reflect changes
- Updated Keyboard shortcut support

core/internal/config/hyprland_lua.go

@@ -0,0 +1,169 @@
+package config
+
+import (
+	"fmt"
+	"os"
+	"path/filepath"
+	"regexp"
+	"strconv"
+	"strings"
+	"time"
+)
+
+const (
+	hyprlandStartupBegin = "-- DMS_STARTUP_BEGIN"
+	hyprlandStartupEnd   = "-- DMS_STARTUP_END"
+)
+
+func extractHyprlangMonitorLines(hyprlang string) []string {
+	re := regexp.MustCompile(`(?m)^\s*#?\s*monitor\s*=.*$`)
+	return re.FindAllString(hyprlang, -1)
+}
+
+func hyprlangMonitorLineToLua(line string) (string, error) {
+	re := regexp.MustCompile(`(?i)^\s*#?\s*monitor\s*=\s*(.*)\s*$`)
+	m := re.FindStringSubmatch(line)
+	if m == nil {
+		return "", fmt.Errorf("not a monitor line")
+	}
+	rest := strings.TrimSpace(m[1])
+	parts := strings.Split(rest, ",")
+	for i := range parts {
+		parts[i] = strings.TrimSpace(parts[i])
+	}
+	if len(parts) < 4 {
+		if len(parts) == 2 && strings.EqualFold(parts[1], "disable") {
+			return fmt.Sprintf(`hl.monitor({ output = %s, disabled = true })`, strconv.Quote(parts[0])), nil
+		}
+		return "", fmt.Errorf("expected at least 4 comma-separated fields")
+	}
+	out := parts[0]
+	mode := parts[1]
+	pos := parts[2]
+	scaleStr := parts[3]
+
+	scaleField := formatMonitorScaleLua(scaleStr)
+	fields := []string{
+		fmt.Sprintf("output = %s", strconv.Quote(out)),
+		fmt.Sprintf("mode = %s", strconv.Quote(mode)),
+		fmt.Sprintf("position = %s", strconv.Quote(pos)),
+		scaleField,
+	}
+	for i := 4; i < len(parts); i += 2 {
+		key := strings.ToLower(strings.TrimSpace(parts[i]))
+		if key == "" {
+			continue
+		}
+		if i+1 >= len(parts) {
+			fields = append(fields, fmt.Sprintf("%s = true", hyprlangMonitorOptionToLuaKey(key)))
+			continue
+		}
+		val := strings.TrimSpace(parts[i+1])
+		if converted, ok := formatMonitorOptionLua(key, val); ok {
+			fields = append(fields, converted)
+		}
+	}
+	return fmt.Sprintf(`hl.monitor({ %s })`, strings.Join(fields, ", ")), nil
+}
+
+func formatMonitorScaleLua(scaleStr string) string {
+	if scaleStr == "auto" {
+		return `scale = "auto"`
+	}
+	if f, err := strconv.ParseFloat(scaleStr, 64); err == nil {
+		return fmt.Sprintf(`scale = %g`, f)
+	}
+	return fmt.Sprintf(`scale = %s`, strconv.Quote(scaleStr))
+}
+
+func hyprlangMonitorOptionToLuaKey(key string) string {
+	switch strings.ToLower(strings.TrimSpace(key)) {
+	case "10bit":
+		return "bitdepth"
+	default:
+		return strings.ReplaceAll(strings.ToLower(strings.TrimSpace(key)), "-", "_")
+	}
+}
+
+func formatMonitorOptionLua(key, val string) (string, bool) {
+	luaKey := hyprlangMonitorOptionToLuaKey(key)
+	switch luaKey {
+	case "transform", "vrr", "bitdepth", "supports_wide_color", "supports_hdr", "sdr_max_luminance", "max_luminance", "max_avg_luminance":
+		if _, err := strconv.Atoi(val); err == nil {
+			return fmt.Sprintf("%s = %s", luaKey, val), true
+		}
+	case "sdrbrightness", "sdrsaturation", "sdr_min_luminance", "min_luminance":
+		if _, err := strconv.ParseFloat(val, 64); err == nil {
+			return fmt.Sprintf("%s = %s", luaKey, val), true
+		}
+	case "cm", "sdr_eotf", "icc", "mirror":
+		return fmt.Sprintf("%s = %s", luaKey, strconv.Quote(val)), true
+	}
+	return "", false
+}
+
+func transformHyprlandLuaForNonSystemd(config, terminalCommand string) string {
+	start := strings.Index(config, hyprlandStartupBegin)
+	end := strings.Index(config, hyprlandStartupEnd)
+	if start == -1 || end == -1 || end <= start {
+		return config
+	}
+	endClose := end + len(hyprlandStartupEnd)
+	replacement := hyprlandStartupBegin + "\n" +
+		`hl.env("QT_QPA_PLATFORM", "wayland;xcb")` + "\n" +
+		`hl.env("ELECTRON_OZONE_PLATFORM_HINT", "auto")` + "\n" +
+		`hl.env("QT_QPA_PLATFORMTHEME", "gtk3")` + "\n" +
+		`hl.env("QT_QPA_PLATFORMTHEME_QT6", "gtk3")` + "\n" +
+		fmt.Sprintf(`hl.env("TERMINAL", %s)`, strconv.Quote(terminalCommand)) + "\n\n" +
+		`hl.on("hyprland.start", function()` + "\n" +
+		`	hl.exec_cmd("dms run")` + "\n" +
+		`end)` + "\n" +
+		hyprlandStartupEnd
+	return config[:start] + replacement + config[endClose:]
+}
+
+func readExistingHyprlandConfig(configDir string) (data string, sourcePath string, err error) {
+	luaPath := filepath.Join(configDir, "hyprland.lua")
+	if b, e := os.ReadFile(luaPath); e == nil {
+		return string(b), luaPath, nil
+	} else if !os.IsNotExist(e) {
+		return "", "", e
+	}
+	confPath := filepath.Join(configDir, "hyprland.conf")
+	if b, e := os.ReadFile(confPath); e == nil {
+		return string(b), confPath, nil
+	} else if !os.IsNotExist(e) {
+		return "", "", e
+	}
+	return "", "", nil
+}
+
+// CleanupStrayHyprlandConfFile moves a stray ~/.config/hypr/hyprland.conf
+// into .dms-backups/<timestamp>/ when running under Hyprland. Hyprland 0.55
+// auto-generates hyprland.conf when launched without -c, so this is invoked
+// from dms run startup to keep the active config tree single-file.
+func CleanupStrayHyprlandConfFile(logFn func(format string, v ...any)) {
+	if os.Getenv("HYPRLAND_INSTANCE_SIGNATURE") == "" {
+		return
+	}
+	home := os.Getenv("HOME")
+	if home == "" {
+		return
+	}
+	configDir := filepath.Join(home, ".config", "hypr")
+	confPath := filepath.Join(configDir, "hyprland.conf")
+	if _, err := os.Stat(confPath); err != nil {
+		return
+	}
+	ts := time.Now().Format("2006-01-02_15-04-05")
+	dst := filepath.Join(configDir, hyprlandBackupDirName, ts, "hyprland.conf")
+	if err := moveHyprlandConfigFile(confPath, dst); err != nil {
+		if logFn != nil {
+			logFn("Could not move stray hyprland.conf: %v", err)
+		}
+		return
+	}
+	if logFn != nil {
+		logFn("Moved stray hyprland.conf to %s", dst)
+	}
+}