package watchers

import (
	"git.sharkk.net/Sky/Moonshark/core/logger"
	"git.sharkk.net/Sky/Moonshark/core/runner"
)

// WatchLuaModules sets up an optimized watcher for Lua module directories
func WatchLuaModules(luaRunner *runner.LuaRunner, libDirs []string, log *logger.Logger) ([]*Watcher, error) {
	watchers := make([]*Watcher, 0, len(libDirs))

	for _, dir := range libDirs {
		// Create a directory-specific callback that identifies changed files
		dirCopy := dir // Capture for closure

		callback := func() error {
			log.Debug("Detected changes in Lua module directory: %s", dirCopy)

			// Instead of clearing everything, use directory-level smart refresh
			// This will scan lib directory and refresh all modified Lua modules
			if err := luaRunner.ReloadAllModules(); err != nil {
				log.Warning("Error reloading modules: %v", err)
			}

			return nil
		}

		config := WatcherConfig{
			Dir:          dir,
			Callback:     callback,
			Log:          log,
			Recursive:    true,
			Adaptive:     true,
			DebounceTime: defaultDebounceTime,
		}

		watcher, err := WatchDirectory(config)
		if err != nil {
			for _, w := range watchers {
				w.Close()
			}
			return nil, err
		}

		watchers = append(watchers, watcher)
		log.Info("Started watching Lua modules directory: %s", dir)
	}

	return watchers, nil
}