package scripts.qa;

import com.alibaba.fastjson2.JSON;
import com.alibaba.fastjson2.JSONObject;
import com.ruoyi.train.integration.dms.mock.MockDmsServer;
import com.sun.net.httpserver.HttpExchange;
import com.sun.net.httpserver.HttpServer;

import java.io.*;
import java.net.InetSocketAddress;
import java.nio.charset.StandardCharsets;
import java.util.concurrent.Executors;

public class MockDmsRunner {
    private static MockDmsServer mockDmsServer;
    private static HttpServer controlServer;

    public static void main(String[] args) throws Exception {
        int dmsPort = 18099;
        int controlPort = 18098;

        mockDmsServer = new MockDmsServer();
        // Use reflection or custom wrapper to bind exact port
        java.lang.reflect.Field serverField = MockDmsServer.class.getDeclaredField("server");
        serverField.setAccessible(true);
        HttpServer s = HttpServer.create(new InetSocketAddress("127.0.0.1", dmsPort), 0);
        s.setExecutor(Executors.newCachedThreadPool());
        serverField.set(mockDmsServer, s);

        java.lang.reflect.Field portField = MockDmsServer.class.getDeclaredField("port");
        portField.setAccessible(true);
        portField.setInt(mockDmsServer, dmsPort);

        java.lang.reflect.Method regMethod = MockDmsServer.class.getDeclaredMethod("registerEndpoints");
        regMethod.setAccessible(true);
        regMethod.invoke(mockDmsServer);

        s.start();
        System.out.println("MockDmsServer started on port: " + dmsPort);

        // Control server on 18098 for test orchestration
        controlServer = HttpServer.create(new InetSocketAddress("127.0.0.1", controlPort), 0);
        controlServer.createContext("/mock/control/set-operation-status", exchange -> {
            String body = readBody(exchange);
            JSONObject req = JSON.parseObject(body);
            Long opId = req.getLong("operationId");
            String status = req.getString("status");
            String msg = req.getString("message");
            mockDmsServer.setOperationStatus(opId, status, msg);
            sendResponse(exchange, 200, "{\"success\":true}");
        });

        controlServer.createContext("/mock/control/timeout", exchange -> {
            String body = readBody(exchange);
            JSONObject req = JSON.parseObject(body);
            boolean sim = req.getBooleanValue("simulate");
            mockDmsServer.setSimulateReadTimeout(sim);
            sendResponse(exchange, 200, "{\"success\":true}");
        });

        controlServer.createContext("/mock/control/stats", exchange -> {
            JSONObject resp = new JSONObject();
            resp.put("loginCount", mockDmsServer.getLoginCounter());
            resp.put("createCount", mockDmsServer.getPasswordCreatePostCounter());
            resp.put("deleteCount", mockDmsServer.getPasswordDeletePostCounter());
            resp.put("activeToken", mockDmsServer.getActiveToken());
            sendResponse(exchange, 200, resp.toJSONString());
        });

        controlServer.start();
        System.out.println("MockDms Control Server started on port: " + controlPort);

        // Keep process alive
        Thread.currentThread().join();
    }

    private static String readBody(HttpExchange exchange) throws IOException {
        try (BufferedReader reader = new BufferedReader(new InputStreamReader(exchange.getRequestBody(), StandardCharsets.UTF_8))) {
            StringBuilder sb = new StringBuilder();
            String line;
            while ((line = reader.readLine()) != null) sb.append(line);
            return sb.toString();
        }
    }

    private static void sendResponse(HttpExchange exchange, int code, String body) throws IOException {
        byte[] bytes = body.getBytes(StandardCharsets.UTF_8);
        exchange.getResponseHeaders().set("Content-Type", "application/json");
        exchange.sendResponseHeaders(code, bytes.length);
        try (OutputStream os = exchange.getResponseBody()) {
            os.write(bytes);
        }
    }
}