package scene

import (
	"context"
	"fmt"
	"github.com/gogf/gf/v2/database/gredis"
)

const (
	scenePrefix = "scene-manager:alarm:"
	dataExpires = 7200
)

type GetSceneParams struct {
	Type       string `json:"type"`
	Name       string `json:"name"`
	DeviceCode string `json:"device_code"`
}

type InfoScene struct {
	Id         string `json:"id"`
	Name       string `json:"name"`
	Status     int    `json:"status"`
	Action     string `json:"action"`
	Desc       string `json:"desc"`
	SceneType  string `json:"scene_type"`
	DeviceType string `json:"device_type"`
	Config     string `json:"config"`
	Time       string `json:"time"`
}

type Info struct {
	Key     string `json:"key"`
	SceneId string `json:"scene_id"`
	TaskId  string `json:"task_id"`
	Config  string `json:"config"`
}

type Manager struct {
	redisClient *gredis.Redis
	ctx         context.Context
}

func NewSceneManager(host string, port int) *Manager {
	red, _ := gredis.New(&gredis.Config{
		Address:   fmt.Sprintf("%s:%d", host, port),
		Db:        2,
		MaxActive: 100,
	})
	ctx := context.Background()
	helper := &Manager{
		redisClient: red,
		ctx:         ctx,
	}
	return helper
}

func (a *Manager) SaveScene(info *Info) error {
	_, err := a.redisClient.Do(a.ctx, "SET", info.Key, info.Config)
	if err != nil {
		return err
	}
	_, err = a.redisClient.Do(a.ctx, info.Key, dataExpires)
	if err != nil {
		return err
	}
	return nil
}

func (a *Manager) GetScene(key string) (string, error) {
	// get status from redis
	result, err := a.redisClient.Do(a.ctx, "GET", key)
	if err != nil {
		return "", err
	}
	return result.String(), nil
}

func (a *Manager) DeleteScene(key string) error {
	// get status from redis
	_, err := a.redisClient.Do(a.ctx, "DEL", key)
	if err != nil {
		return err
	}
	return nil
}

// ScanKeys 扫描所有匹配的key
//func (a *Manager) ScanKeys(pattern string) ([]string, error) {
//	var cursor uint64
//	var allKeys []string
//	for {
//		// 扫描一批匹配的key
//		_, err := a.redisClient.Do("Scan", cursor, pattern, 100)
//		if err != nil {
//			return nil, err
//		}
//		allKeys = append(allKeys, keys...)
//		cursor = nextCursor
//		// 游标归0时结束迭代
//		if cursor == 0 {
//			break
//		}
//	}
//	return allKeys, nil
//}