// Package main demonstrates device list retrieval with various filters.
// 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"

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

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:    int32(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("刷新设备列表...")
	if err := client.RefreshDevices(ctx); err != nil {
		log.Printf("刷新设备列表失败: %v", err)
	}

	allDevices, err := client.GetDevices(ctx)
	if err != nil {
		log.Fatal("获取设备列表失败:", err)
	}
	log.Printf("=== 全部设备 (%d 个) ===", len(allDevices))
	for _, d := range allDevices {
		kind := d.DeviceKind()
		log.Printf("  %-20s | %-25s | 种类=%-18s | 在线=%v", d.Name, d.Model, kind, d.Online)
	}

	onlineDevices, err := client.GetDevices(ctx, xiaomi.FilterByOnline())
	if err != nil {
		log.Printf("过滤在线设备失败: %v", err)
	} else {
		log.Printf("=== 在线设备 (%d 个) ===", len(onlineDevices))
		for _, d := range onlineDevices {
			log.Printf("  %s (%s)", d.Name, d.Model)
		}
	}

	switchDevices, err := client.GetDevices(ctx, xiaomi.FilterByKind(xiaomi.KindSwitch))
	if err != nil {
		log.Printf("过滤开关类设备失败: %v", err)
	} else {
		log.Printf("=== 开关类设备 (%d 个) ===", len(switchDevices))
		for _, d := range switchDevices {
			log.Printf("  %s (%s)", d.Name, d.Model)
		}
	}

	lightDevices, err := client.GetDevices(ctx, xiaomi.FilterByKind(xiaomi.KindLight))
	if err != nil {
		log.Printf("过滤灯光类设备失败: %v", err)
	} else {
		log.Printf("=== 灯光类设备 (%d 个) ===", len(lightDevices))
		for _, d := range lightDevices {
			log.Printf("  %s (%s)", d.Name, d.Model)
		}
	}

	onlineLights, err := client.GetDevices(ctx,
		xiaomi.FilterByOnline(),
		xiaomi.FilterByKind(xiaomi.KindLight),
	)
	if err != nil {
		log.Printf("组合过滤失败: %v", err)
	} else {
		log.Printf("=== 在线灯光类设备 (%d 个) ===", len(onlineLights))
		for _, d := range onlineLights {
			log.Printf("  %s (%s)", d.Name, d.Model)
		}
	}

	if len(allDevices) > 0 {
		first := allDevices[0]
		detail, err := client.GetDevice(ctx, first.DID)
		if err != nil {
			log.Printf("获取设备详情失败: %v", err)
		} else {
			log.Printf("=== 设备详情: %s ===", detail.Name)
			log.Printf("  DID: %s", detail.DID)
			log.Printf("  型号: %s", detail.Model)
			log.Printf("  URN: %s", detail.URN)
			log.Printf("  固件: %s", detail.FWVersion)
			log.Printf("  IP: %s (RSSI: %d)", detail.IP, detail.RSSI)
		}
	}

	log.Println("设备列表演示完毕")
}