package smtp

import (
	"context"
	"log"

	"code.yun.ink/pkg/mailx/interfaces"
)

// 使用示例
func ExampleUsage() {
	ctx := context.Background()

	// 创建SMTP实例
	smtpClient := NewSmtp()

	// 配置SMTP设置
	err := smtpClient.SetOption(ctx, func(opt *interfaces.Options) {
		opt.Smtp = &interfaces.EmailConfigDataSmtp{
			Host:     "smtp.gmail.com",
			Port:     "587", // STARTTLS
			Username: "your-email@gmail.com",
			Password: "your-app-password",
			IsSSL:    false, // 使用STARTTLS而不是直接SSL
		}
	})
	if err != nil {
		log.Fatalf("Failed to configure SMTP: %v", err)
	}

	// 构建邮件消息
	message := interfaces.Message{
		Form:    "sender@example.com",
		To:      []string{"recipient1@example.com", "recipient2@example.com"},
		Cc:      []string{"cc@example.com"},
		Bcc:     []string{"bcc@example.com"},
		Subject: "测试邮件 - Enhanced SMTP",
		Body:    "<h1>这是一封测试邮件</h1><p>支持HTML格式和多种功能。</p>",
		ReplyTo: "noreply@example.com",
		Attachment: []interfaces.Attachment{
			{Content: "path/to/attachment.pdf"},
		},
	}

	// 发送邮件
	if err := smtpClient.Send(ctx, message); err != nil {
		log.Fatalf("Failed to send email: %v", err)
	}

	log.Println("Email sent successfully!")
}

// SSL方式示例（465端口）
func ExampleSSLUsage() {
	ctx := context.Background()

	smtpClient := NewSmtp()

	err := smtpClient.SetOption(ctx, func(opt *interfaces.Options) {
		opt.Smtp = &interfaces.EmailConfigDataSmtp{
			Host:     "smtp.gmail.com",
			Port:     "465", // SSL
			Username: "your-email@gmail.com",
			Password: "your-app-password",
			IsSSL:    true,
		}
	})
	if err != nil {
		log.Fatalf("Failed to configure SMTP: %v", err)
	}

	message := interfaces.Message{
		To:      []string{"recipient@example.com"},
		Subject: "SSL邮件测试",
		Body:    "这是通过SSL连接发送的邮件",
	}

	if err := smtpClient.Send(ctx, message); err != nil {
		log.Fatalf("Failed to send email: %v", err)
	}
}

// 企业邮箱示例
func ExampleEnterpriseEmail() {
	ctx := context.Background()

	smtpClient := NewSmtp()

	// 企业邮箱通常使用587端口和STARTTLS
	err := smtpClient.SetOption(ctx, func(opt *interfaces.Options) {
		opt.Smtp = &interfaces.EmailConfigDataSmtp{
			Host:     "smtp.exmail.qq.com", // 腾讯企业邮箱
			Port:     "587",
			Username: "admin@yourcompany.com",
			Password: "your-password",
			IsSSL:    false,
		}
	})
	if err != nil {
		log.Fatalf("Failed to configure SMTP: %v", err)
	}

	message := interfaces.Message{
		Form:    "系统通知 <admin@yourcompany.com>",
		To:      []string{"employee@yourcompany.com"},
		Subject: "系统维护通知",
		Body: `
			<div style="font-family: Arial, sans-serif;">
				<h2>系统维护通知</h2>
				<p>尊敬的用户：</p>
				<p>我们将于今晚进行系统维护，预计维护时间为2小时。</p>
				<p>维护期间系统将暂停服务，给您带来的不便敬请谅解。</p>
				<br>
				<p>技术团队</p>
			</div>
		`,
	}

	if err := smtpClient.Send(ctx, message); err != nil {
		log.Fatalf("Failed to send email: %v", err)
	}
}