package email.internal;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.security.GeneralSecurityException;
import java.util.Map;
import java.util.Properties;
import java.io.OutputStream;
import java.net.HttpURLConnection;
import java.net.URL;
import com.sun.mail.util.MailSSLSocketFactory;
import email.EmailPropertiesUtil;
import okhttp3.*;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.InitializingBean;
import org.springframework.mail.SimpleMailMessage;
import org.springframework.mail.javamail.JavaMailSenderImpl;
import org.springframework.ui.freemarker.FreeMarkerTemplateUtils;
import org.springframework.web.servlet.view.freemarker.FreeMarkerConfigurer;

import email.sender.EmailMessage;
import freemarker.template.Template;
import freemarker.template.TemplateException;
import javax.net.ssl.*;
import java.security.cert.X509Certificate;
public class InternalEmailSenderServiceImpl implements InternalEmailSenderService, InitializingBean {
	private JavaMailSenderImpl mailSender;
	private static final Logger logger = LoggerFactory.getLogger(InternalEmailSenderServiceImpl.class);
	private SimpleMailMessage mailMessage;
	private FreeMarkerConfigurer freeMarkerConfigurer;

	@Override
	public void afterPropertiesSet() throws GeneralSecurityException {
		mailSender = new JavaMailSenderImpl();
		mailSender.setUsername(EmailPropertiesUtil.getProperty("email.username"));
		mailSender.setPassword(EmailPropertiesUtil.getProperty("email.password"));
		mailSender.setHost(EmailPropertiesUtil.getProperty("email.host"));
		Properties javaMailProperties = new Properties();
		javaMailProperties.setProperty("mail.smtp.port", "465");
		javaMailProperties.setProperty("mail.smtp.starttls.enable", "true");
		javaMailProperties.setProperty("mail.smtp.auth", "true");
		javaMailProperties.setProperty("mmail.debug", "true");
		javaMailProperties.setProperty("mail.smtp.host", "smtp.gmail.com");
		javaMailProperties.setProperty("mail.smtp.socketFactory.class", "javax.net.ssl.SSLSocketFactory");
		javaMailProperties.setProperty("mail.smtp.socketFactory.port", "465");
		MailSSLSocketFactory sf = new MailSSLSocketFactory("TLSv1.2");
		sf.setTrustAllHosts(true);
		javaMailProperties.put("mail.smtp.ssl.socketFactory",sf);
		javaMailProperties.setProperty("mail.smtp.ssl.portocols","TLSv1.2");
		mailSender.setJavaMailProperties(javaMailProperties);
		mailMessage = new SimpleMailMessage();
		mailMessage.setFrom(EmailPropertiesUtil.getProperty("email.from"));
		freeMarkerConfigurer = new FreeMarkerConfigurer();
		freeMarkerConfigurer.setTemplateLoaderPath("classpath:email/ftl");
		Properties settings = new Properties();
		settings.setProperty("template_update_delay", "1800");
		settings.setProperty("default_encoding", "UTF-8");
		settings.setProperty("locale", "zh_CN");
		freeMarkerConfigurer.setFreemarkerSettings(settings);
	}

	private static final OkHttpClient client = new OkHttpClient.Builder()
			.connectTimeout(10, java.util.concurrent.TimeUnit.SECONDS)  // 设置连接超时
			.readTimeout(30, java.util.concurrent.TimeUnit.SECONDS)     // 设置读取超时
			.writeTimeout(30, java.util.concurrent.TimeUnit.SECONDS)    // 设置写入超时
			.build();

	private static final String API_URL = "https://www.aoksend.com/index/api/send_email";
	private static final String APP_KEY = "d30ca7063ad44bd832bc934ff94a443b";  // 从环境变量或配置文件中获取
	@Override
	public void send(EmailMessage emailMessage) {
		// 验证邮件信息数据的有效性
		if (emailMessage == null || emailMessage.getTomail() == null || emailMessage.getContent() == null) {
			logger.error("无效的邮件信息数据。");
			return;
		}

		try {
			logger.info("----- 开始发送邮件 -----");
			logger.info("发送邮件到: " + emailMessage.getTomail() + ", 来自: " + emailMessage.getContent());

			// 使用 URL 构建器构建带有查询参数的 URL
			HttpUrl.Builder urlBuilder = HttpUrl.parse(API_URL).newBuilder();
			urlBuilder.addQueryParameter("app_key", APP_KEY);
			urlBuilder.addQueryParameter("template_id", "E_117228484621");
			urlBuilder.addQueryParameter("to", emailMessage.getTomail());

			// 将邮件内容以 JSON 形式传递
			String json = "{\"code\":\"" + emailMessage.getContent() + "\"}";
			urlBuilder.addQueryParameter("data", json);  // 确保正确编码

			// 构建请求体，使用 POST 方法
			RequestBody body = RequestBody.create(
					json, MediaType.parse("application/json; charset=utf-8")
			);

			// 构建 POST 请求
			Request request = new Request.Builder()
					.url(urlBuilder.build())
					.post(body)  // 使用 POST 方法，并传递请求体
					.addHeader("app_key", APP_KEY)
					.build();

			// 执行请求
			try (Response response = client.newCall(request).execute()) {
				if (!response.isSuccessful()) {
					logger.error("邮件发送失败。HTTP 响应码: " + response.code());
					return;
				}

				logger.info("----- 邮件发送成功 -----");
				// 可选：记录响应体的内容（如果需要）
				logger.debug("响应内容: " + response.body().string());
			}

		} catch (IOException e) {
			logger.error("邮件发送失败【IOException】", e);
		} catch (Exception e) {
			logger.error("邮件发送失败【Exception】", e);
		}
	}

	/**
	 * 获取模板并将内容输出到模板
	 * 
	 * @param content
	 * @return
	 */
	private String getMailText(String ftlname, Map<String, Object> map) {
		String html = "";

		try {

			// 装载模板
			Template tpl = this.freeMarkerConfigurer.getConfiguration().getTemplate(ftlname);
			// 加入map到模板中 输出对应变量
			html = FreeMarkerTemplateUtils.processTemplateIntoString(tpl, map);

		} catch (IOException e) {
			e.printStackTrace();
		} catch (TemplateException e) {
			e.printStackTrace();
		}
		return html;
	}

	public void setMailSender(JavaMailSenderImpl mailSender) {
		this.mailSender = mailSender;
	}

	public void setMailMessage(SimpleMailMessage mailMessage) {
		this.mailMessage = mailMessage;
	}

	public void setFreeMarkerConfigurer(FreeMarkerConfigurer freeMarkerConfigurer) {
		this.freeMarkerConfigurer = freeMarkerConfigurer;
	}

}