#include <shared/testing/ITestModule.h>
#include <grove/JsonDataNode.h>
#include <grove/IIO.h>
#include <spdlog/spdlog.h>
#include <chrono>
#include <thread>

namespace celuna::testing {

/**
 * @brief Test WebModule HTTP request
 *
 * Workflow:
 * 1. Publish web:request to https://api.github.com
 * 2. Wait for web:response (timeout 10s)
 * 3. Validate statusCode == 200
 */
class IT_013_WebRequest : public ITestModule {
public:
    std::string getTestName() const override {
        return "IT_013_WebRequest";
    }

    std::string getDescription() const override {
        return "Test WebModule HTTP request";
    }

    void setConfiguration(const grove::IDataNode& config,
                         grove::IIO* io,
                         grove::ITaskScheduler* scheduler) override {
        m_io = io;
        m_scheduler = scheduler;
        m_timeout = config.getInt("timeoutMs", 10000); // 10s for network

        // Subscribe to web responses
        grove::SubscriptionConfig subConfig;
        m_io->subscribe("web:response", subConfig);

        spdlog::info("[{}] Configured with timeout={}ms", getTestName(), m_timeout);
    }

    void process(const grove::IDataNode& input) override {}
    void shutdown() override {}

    const grove::IDataNode& getConfiguration() override {
        static grove::JsonDataNode config("config");
        return config;
    }

    std::unique_ptr<grove::IDataNode> getHealthStatus() override {
        auto status = std::make_unique<grove::JsonDataNode>("health");
        status->setString("status", "healthy");
        return status;
    }

    std::unique_ptr<grove::IDataNode> getState() override {
        return std::make_unique<grove::JsonDataNode>("state");
    }

    void setState(const grove::IDataNode& state) override {}

    std::string getType() const override { return "IT_013_WebRequest"; }
    int getVersion() const override { return 1; }
    bool isIdle() const override { return true; }

    TestResult execute() override {
        auto start = std::chrono::steady_clock::now();
        TestResult result;
        result.testName = getTestName();

        try {
            spdlog::info("[{}] Sending GET request to GitHub API...", getTestName());

            // 1. Send GET request to GitHub API
            auto request = std::make_unique<grove::JsonDataNode>("request");
            request->setString("url", "https://api.github.com");
            request->setString("method", "GET");
            request->setString("requestId", "it013_test");

            // Add headers
            auto headers = std::make_unique<grove::JsonDataNode>("headers");
            headers->setString("User-Agent", "AISSIA-Integration-Test");
            headers->setString("Accept", "application/json");
            request->setChild("headers", std::move(headers));

            m_io->publish("web:request", std::move(request));

            // 2. Wait for response
            auto response = waitForMessage("web:response", m_timeout);

            if (!response) {
                result.passed = false;
                result.message = "Timeout waiting for web:response";
                return result;
            }

            // 3. Validate response
            bool success = response->getBool("success", false);
            int statusCode = response->getInt("statusCode", 0);
            std::string body = response->getString("body", "");
            std::string error = response->getString("error", "");

            if (!success) {
                result.passed = false;
                result.message = "Request failed: " + error;
                result.details["error"] = error;
                result.details["statusCode"] = std::to_string(statusCode);
                return result;
            }

            if (statusCode != 200) {
                result.passed = false;
                result.message = "Unexpected status code: " + std::to_string(statusCode);
                result.details["statusCode"] = std::to_string(statusCode);
                result.details["body"] = body.substr(0, 200); // First 200 chars
                return result;
            }

            // Check if body looks like JSON from GitHub API
            bool hasGitHubFields = body.find("current_user_url") != std::string::npos ||
                                   body.find("gists_url") != std::string::npos;

            if (!hasGitHubFields) {
                spdlog::warn("[{}] Response doesn't look like GitHub API", getTestName());
            }

            result.passed = true;
            result.message = "HTTP GET successful: statusCode=200, body=" +
                           std::to_string(body.size()) + " bytes";
            result.details["statusCode"] = std::to_string(statusCode);
            result.details["bodySize"] = std::to_string(body.size());
            result.details["hasGitHubFields"] = hasGitHubFields ? "yes" : "no";

            spdlog::info("[{}] Request successful: {} bytes received",
                        getTestName(), body.size());

        } catch (const std::exception& e) {
            result.passed = false;
            result.message = std::string("Exception: ") + e.what();
            spdlog::error("[{}] {}", getTestName(), result.message);
        }

        auto end = std::chrono::steady_clock::now();
        result.durationMs = std::chrono::duration_cast<std::chrono::milliseconds>(
            end - start).count();

        return result;
    }

private:
    std::unique_ptr<grove::IDataNode> waitForMessage(
        const std::string& topic, int timeoutMs) {

        auto start = std::chrono::steady_clock::now();

        while (true) {
            if (m_io->hasMessages() > 0) {
                auto msg = m_io->pullMessage();
                if (msg.topic == topic && msg.data) {
                    return std::move(msg.data);
                }
            }

            auto elapsed = std::chrono::duration_cast<std::chrono::milliseconds>(
                std::chrono::steady_clock::now() - start).count();

            if (elapsed > timeoutMs) {
                return nullptr;
            }

            std::this_thread::sleep_for(std::chrono::milliseconds(100));
        }
    }

    grove::IIO* m_io = nullptr;
    grove::ITaskScheduler* m_scheduler = nullptr;
    int m_timeout = 10000;
};

} // namespace celuna::testing

// Factory functions
extern "C" {
    grove::IModule* createModule() {
        return new celuna::testing::IT_013_WebRequest();
    }

    void destroyModule(grove::IModule* module) {
        delete module;
    }
}
