package plugins

import (
	"gitee.com/wujianhai/hi-things/config"
	"github.com/asynkron/protoactor-go/actor"
	"log"
	"os"
	"path/filepath"
	"strings"
)

// 内置插件管理器
type BuildInPluginManager struct {
	System  *actor.ActorSystem
	Plugins []Plugin
}

func (m *BuildInPluginManager) loadPlugins() error {
	m.System.Logger().Info("loading build-in plugins")
	return nil
}

func NewBuildInPluginManager(system *actor.ActorSystem) *BuildInPluginManager {
	globalFilePath := config.GetGlobalPath()
	filepath.WalkDir(globalFilePath.LibPath, func(path string, d os.DirEntry, err error) error {
		return nil
	})
	return &BuildInPluginManager{System: system}
}

// 扩展插件管理器
type ExtPluginManager struct {
	System  *actor.ActorSystem
	Plugins []Plugin
}

func (m *ExtPluginManager) loadPlugins() error {
	m.System.Logger().Info("loading extension plugins")
	return nil
}

func NewExtPluginManager(system *actor.ActorSystem) *ExtPluginManager {
	globalFilePath := config.GetGlobalPath()
	filepath.WalkDir(globalFilePath.PluginPath, func(path string, d os.DirEntry, err error) error {
		return err
	})
	return &ExtPluginManager{System: system}
}

type PluginManager struct {
	BuildInPluginManager *BuildInPluginManager
	ExtPluginManager     *ExtPluginManager
}

func (m *PluginManager) LoadPlugins() error {
	log.Println("loading plugins...")
	buildErr := m.BuildInPluginManager.loadPlugins()
	if buildErr != nil {
		m.BuildInPluginManager.System.Logger().Error("loading build-in plugins  failure", "err", buildErr)
		return buildErr
	}
	extLoadErr := m.ExtPluginManager.loadPlugins()
	if extLoadErr != nil {
		m.BuildInPluginManager.System.Logger().Error("loading extension plugins  failure", "err", extLoadErr)
		return extLoadErr
	}
	return nil
}

func NewPluginManager(system *actor.ActorSystem) *PluginManager {
	return &PluginManager{
		BuildInPluginManager: NewBuildInPluginManager(system),
		ExtPluginManager:     NewExtPluginManager(system),
	}
}

func discoverPlugins(pluginDir string) ([]string, error) {
	var plugins []string
	files, err := os.ReadDir(pluginDir)
	if err != nil {
		return nil, err
	}
	for _, file := range files {
		if !file.IsDir() && strings.HasSuffix(file.Name(), ".so") {
			plugins = append(plugins, filepath.Join(pluginDir, file.Name()))
		}
	}
	return plugins, nil
}