import java.io.*;
import java.net.*;
import java.util.ArrayList;
import java.util.List;

public class TestServer {
    public static void main(String[] args) {
        try {
            int port = 8080;
            ServerSocket server = new ServerSocket(port);
            System.out.println("\nTest Server Started Successfully!");
            System.out.println("Listening on Port: " + port);
            System.out.println("Access Address: http://localhost:" + port + "/api");
            System.out.println("\nPress Ctrl+C to Stop Service\n");
            
            while (true) {
                Socket client = server.accept();
                handle(client);
            }
        } catch (Exception e) {
            System.err.println("Server Error: " + e.getMessage());
        }
    }
    
    private static void handle(Socket client) {
        new Thread(() -> {
            try (BufferedReader in = new BufferedReader(new InputStreamReader(client.getInputStream()));
                 OutputStream out = client.getOutputStream()) {
                
                String line = in.readLine();
                System.out.println("Request: " + line);
                
                // Read all request headers
                while ((line = in.readLine()) != null && !line.isEmpty()) {}
                
                // Determine response based on request path
                String response = "{\"status\":\"success\",\"message\":\"Backend Service Started!\"}";
                
                // Handle product search request
                if (line != null && line.contains("/api/products/search")) {
                    // Create mock product data
                    response = "{\"status\":200,\"message\":\"success\",\"data\":[{\"id\":\"1\",\"title\":\"iPhone X\",\"description\":\"iPhone X 64GB\",\"category\":\"手机\",\"price\":3999.0,\"image_urls\":[\"image_url1\"],\"contact\":\"13800138000\",\"publish_time\":1620000000,\"seller_id\":\"1\"},{\"id\":\"2\",\"title\":\"MacBook Pro\",\"description\":\"MacBook Pro 13寸\",\"category\":\"电脑\",\"price\":8999.0,\"image_urls\":[\"image_url2\"],\"contact\":\"13800138001\",\"publish_time\":1620000001,\"seller_id\":\"2\"}]}";
                }
                
                // Handle product list request
                if (line != null && line.contains("/api/products")) {
                    // Create mock product list data
                    response = "{\"status\":200,\"message\":\"success\",\"data\":[{\"id\":\"1\",\"title\":\"iPhone X\",\"description\":\"iPhone X 64GB\",\"category\":\"手机\",\"price\":3999.0,\"image_urls\":[\"image_url1\"],\"contact\":\"13800138000\",\"publish_time\":1620000000,\"seller_id\":\"1\"},{\"id\":\"2\",\"title\":\"MacBook Pro\",\"description\":\"MacBook Pro 13寸\",\"category\":\"电脑\",\"price\":8999.0,\"image_urls\":[\"image_url2\"],\"contact\":\"13800138001\",\"publish_time\":1620000001,\"seller_id\":\"2\"}]}";
                }
                
                // Response
                String headers = "HTTP/1.1 200 OK\r\n"
                              + "Content-Type: application/json; charset=UTF-8\r\n"
                              + "Access-Control-Allow-Origin: *\r\n"
                              + "Access-Control-Allow-Methods: GET, POST, OPTIONS\r\n"
                              + "Access-Control-Allow-Headers: Content-Type\r\n"
                              + "Content-Length: " + response.getBytes().length + "\r\n"
                              + "\r\n";
                
                out.write(headers.getBytes());
                out.write(response.getBytes());
                out.flush();
                
            } catch (Exception e) {
                System.err.println("Handle Error: " + e.getMessage());
            } finally {
                try { client.close(); } catch (Exception e) {}
            }
        }).start();
    }
}