// Package main demonstrates cover (curtain) device control.
// 运行前提：已配置环境变量 XIAOMI_CLIENT_ID / XIAOMI_CLIENT_SECRET / XIAOMI_ACCESS_TOKEN。
package main

import (
	"context"
	"log"
	"time"

	"xiaomihome/xiaomi"
	"xiaomihome/xiaomi/devices"
	miotconfig "xiaomihome/miot/examples/config"
)

func main() {
	ctx, cancel := context.WithTimeout(context.Background(), 30*time.Second)
	defer cancel()

	cfg, err := miotconfig.LoadConfig("../../../miot/examples/config.json")
	if err != nil {
		log.Fatal("请先运行 miot/examples/cloud_oauth 获取 token:", err)
	}

	client, err := xiaomi.NewClient(ctx, xiaomi.Config{
		AuthInfo: xiaomi.AuthInfo{
			AccessToken:  cfg.AuthInfo.AccessToken,
			RefreshToken: cfg.AuthInfo.RefreshToken,
			ExpiresIn:    cfg.AuthInfo.ExpiresIn,
			ExpiresTS:    cfg.AuthInfo.ExpiresTS,
		},
		DataDir: "./data",
		UUID:    cfg.UUID,
		UID:     cfg.UID,
	})
	if err != nil {
		log.Fatal(err)
	}
	defer client.Close()

	log.Println("=== 窗帘控制 ===")
	coverList, err := client.GetDevices(ctx, xiaomi.FilterByKind(xiaomi.KindCover))
	if err != nil {
		log.Fatalf("获取窗帘列表失败: %v", err)
	}
	if len(coverList) == 0 {
		log.Fatal("未找到窗帘类设备")
	}

	info := coverList[0]
	log.Printf("设备: %s (DID: %s, 型号: %s)", info.Name, info.DID, info.Model)

	cv, err := devices.NewCover(client, info)
	if err != nil {
		log.Fatalf("创建 Cover 控制失败: %v", err)
	}

	pos, err := cv.GetPosition(ctx)
	if err != nil {
		log.Printf("  获取位置失败: %v", err)
	} else {
		log.Printf("  当前位置: %d", pos)
	}

	log.Println("  打开窗帘...")
	cv.Open(ctx)
	time.Sleep(500 * time.Millisecond)

	log.Println("  设置到 50...")
	cv.SetPosition(ctx, 50)
	time.Sleep(500 * time.Millisecond)

	log.Println("  停止...")
	cv.Stop(ctx)

	log.Println("  关闭窗帘...")
	cv.Close(ctx)

	pos, _ = cv.GetPosition(ctx)
	log.Printf("  最终位置: %d", pos)

	log.Println("窗帘演示完毕")
}