//go:build example
// +build example

package main

import (
	"context"
	"fmt"
	"log"

	"git.toowon.com/jimmy/go-common/captcha"
	"git.toowon.com/jimmy/go-common/config"
	"git.toowon.com/jimmy/go-common/factory"
)

func main() {
	cfg, err := config.LoadFromFile("./config/example.json")
	if err != nil {
		log.Fatal(err)
	}

	app := factory.New(cfg)
	cap, err := app.Captcha()
	if err != nil {
		log.Fatal(err)
	}

	if !cap.Enabled() {
		fmt.Println("captcha disabled — set captcha.enabled=true and configure redis to enable")
		return
	}

	ctx := context.Background()

	// 1. 注册场景：生成图形验证码
	result, err := cap.Generate(ctx, captcha.SceneRegister)
	if err != nil {
		log.Fatal(err)
	}
	fmt.Printf("captcha id: %s\n", result.ID)
	fmt.Printf("captcha image length: %d (base64)\n", len(result.ImageBase64))

	// 2. 发短信前校验（业务侧在 handler 中调用；此处演示 API）
	// 实际使用时 answer 来自用户输入
	_ = cap.Verify(ctx, captcha.VerifyRequest{
		Scene:  captcha.SceneRegister,
		ID:     result.ID,
		Answer: "user-input",
	})

	// 3. 登录防暴力
	key := "user@example.com"
	status, _ := cap.RecordLoginFailure(ctx, key)
	fmt.Printf("login failures: %d, needCaptcha: %v, locked: %v\n",
		status.FailCount, status.NeedCaptcha, status.Locked)

	need, _ := cap.LoginNeedCaptcha(ctx, key)
	fmt.Printf("login need captcha: %v\n", need)

	// 登录成功后清除
	_ = cap.ClearLoginFailures(ctx, key)
}