// E7 — Storage and certificate management example.
// Demonstrates: save/load data → user config → certificate operations → manufacturer lookup.
package main

import (
	"fmt"

	"git.zeroonesoft.cn/golib/xiaomihome/miot"
	"git.zeroonesoft.cn/golib/xiaomihome/miot/examples/config"
)

func main() {
	// 1. Load config
	cfg, err := config.LoadConfig(config.DefaultPath())
	if err != nil {
		fmt.Printf("Load config error: %v\n", err)
		return
	}

	// 2. Create storage
	storage := miot.NewMIoTStorage("./data")
	fmt.Println("Storage 已创建 (root=./data)")

	// 3. Save and load data
	fmt.Println("\n=== 读写操作 ===")
	if err := storage.Save("test", "hello", "world"); err != nil {
		fmt.Printf("Save error: %v\n", err)
	} else {
		fmt.Println("Save: test/hello → world (OK)")
	}

	val, err := storage.Load("test", "hello", "str")
	if err != nil {
		fmt.Printf("Load error: %v\n", err)
	} else {
		fmt.Printf("Load: test/hello = %v\n", val)
	}

	// 4. User config operations
	fmt.Println("\n=== 用户配置 ===")
	configData := map[string]interface{}{"language": "zh-Hans", "theme": "dark"}
	if uid := cfg.UID; uid != "" {
		err := storage.UpdateUserConfig(uid, cfg.CloudServer, configData, false)
		if err != nil {
			fmt.Printf("UpdateUserConfig error: %v\n", err)
		} else {
			fmt.Println("UpdateUserConfig: OK")
		}

		loaded := storage.LoadUserConfig(uid, cfg.CloudServer, nil)
		fmt.Printf("LoadUserConfig: %v\n", loaded)
	} else {
		fmt.Println("跳过 (UID 为空)")
	}

	// 5. Certificate operations
	fmt.Println("\n=== 证书操作 ===")
	cert, err := miot.NewMIoTCert(storage, cfg.UID, cfg.CloudServer)
	if err != nil {
		fmt.Printf("NewMIoTCert error: %v\n", err)
	} else {
		ok, err := cert.VerifyCACert()
		if err != nil {
			fmt.Printf("VerifyCACert error: %v\n", err)
		} else if ok {
			fmt.Println("CA 证书验证: 通过")
		} else {
			fmt.Println("CA 证书验证: 失败 (hash 不匹配)")
		}

		fmt.Printf("CA 文件:    %s\n", cert.CAFile())
		fmt.Printf("Key 文件:   %s\n", cert.KeyFile())
		fmt.Printf("Cert 文件:  %s\n", cert.CertFile())
	}

	// 6. Device manufacturer lookup
	fmt.Println("\n=== 厂商信息 ===")
	mfg := miot.NewDeviceManufacturer(storage)
	mfg.Init()

	manufacturers := []string{"xiaomi", "yeelink", "lumi", "chuangmi"}
	for _, m := range manufacturers {
		name := mfg.GetName(m)
		if name != m {
			fmt.Printf("  %s → %s\n", m, name)
		} else {
			fmt.Printf("  %s → (未缓存)\n", m)
		}
	}

	fmt.Println("\n示例结束")
}