import java.net.URI;
import java.net.http.HttpClient;
import java.net.http.HttpRequest;
import java.net.http.HttpResponse;
import java.nio.charset.StandardCharsets;
import java.time.LocalDateTime;
import java.time.temporal.ChronoUnit;
import java.util.Base64;

public class ModernJavaTinySoftClient {

  private static final LocalDateTime TSL_EPOCH = LocalDateTime.of(1899, 12, 30, 0, 0, 0);

  public static void main(String[] args) {
    try {
      String url = "https://opi.tinysoft.com.cn/Service/Call/GetTimeSeriesSample";
      String username = "user"; // 替换账号
      String password = "password"; // 替换密码

      // 1. 准备数据
      double begT = javaDateToTsl(LocalDateTime.of(2026, 3, 25, 0, 0, 0));
      double endT = javaDateToTsl(LocalDateTime.of(2026, 4, 10, 0, 0, 0));
      
      // 手动构建 JSON 数组字符串
      String jsonBody = String.format("[%.10f, %.10f, \"SZ000002\", \"日线\"]", begT, endT);

      // 2. 构建 Basic Auth
      String auth = username + ":" + password;
      String basicAuth = "Basic " + Base64.getEncoder().encodeToString(auth.getBytes(StandardCharsets.ISO_8859_1));

      // 3. 创建 HttpClient (Java 11+ 原生，无警告，无依赖)
      HttpClient client = HttpClient.newHttpClient();

      // 4. 构建请求
      HttpRequest request = HttpRequest.newBuilder()
          .uri(URI.create(url)) // 使用 URI.create，无弃用警告
          .header("Content-Type", "application/json")
          .header("TS-EVENTNAME", "auto")
          .header("JSON-Encode", "gbk")
          .header("Authorization", basicAuth)
          // 【关键】添加 User-Agent，防止 403
          .header("User-Agent", "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36")
          .POST(HttpRequest.BodyPublishers.ofString(jsonBody, StandardCharsets.UTF_8))
          .build();

      // 5. 发送请求
      HttpResponse<String> response = client.send(request, HttpResponse.BodyHandlers.ofString());

      System.out.println("状态码: " + response.statusCode());
      System.out.println("响应: " + response.body());

    } catch (Exception e) {
      e.printStackTrace();
    }
  }

  public static double javaDateToTsl(LocalDateTime dt) {
    long days = ChronoUnit.DAYS.between(TSL_EPOCH, dt);
    long seconds = dt.getHour() * 3600L + dt.getMinute() * 60L + dt.getSecond();
    return days + (seconds / 86400.0);
  }
}