#include <gtest/gtest.h>
#include "Spf.h"

#include "libspf2_mock.h"

// Mock the SPF server responses for unit testing
class MockSPFServer {
public:
    static void initialize() {
        // Initialize any mock data here
    }
    
    static void cleanup() {
        // Cleanup if needed
    }

    static SPF_response_t* mockResponse(SPF_result_t result) {
        SPF_response_t* response = new SPF_response_t; // Replace with actual allocation
        response->result = result; // Set the desired mock result
        return response;
    }
};

// Test Fixture for SPF tests
class SpfTest : public ::testing::Test {
protected:
    Spf* spf;

    void SetUp() override {
        // Create a new Spf instance before each test
        spf = new Spf();
    }

    void TearDown() override {
        // Clean up after each test
        delete spf;
        spf->deinitialize();
    }
};

// Test the construction of the Spf object
TEST_F(SpfTest, Construction) {
    EXPECT_NO_THROW({
        Spf testSpf;
    });
}

// Test SPF querying with valid parameters
TEST_F(SpfTest, QueryValidParameters) {
    // Assuming the mocked SPF server is set up to return a valid response
    MockSPFServer::initialize();
    
    bool result = spf->query("192.0.2.1", "mail.example.com", "test@example.com");
    EXPECT_TRUE(result);

    MockSPFServer::cleanup();
}

// Test SPF querying with failed result
TEST_F(SpfTest, QueryFailResult) {
    // Mock the response to return a fail result here
    SPF_response_t* response = MockSPFServer::mockResponse(SPF_RESULT_FAIL);
    
    bool result = spf->query("198.51.100.1", "fail.example.com", "test@fail.com");
    EXPECT_FALSE(result);

    delete response; // Clean up mocked response
}

// Test SPF querying with an empty HELO string
TEST_F(SpfTest, QueryEmptyHelo) {
    EXPECT_THROW({
        spf->query("192.0.2.1", "", "test@example.com");
    }, std::runtime_error);
}

// Test SPF querying with invalid IP format
TEST_F(SpfTest, QueryInvalidIPAddress) {
    EXPECT_THROW({
        spf->query("invalid_ip", "mail.example.com", "test@example.com");
    }, std::runtime_error);
}

// Test SPF request failure
TEST_F(SpfTest, QueryRequestFailure) {
    // Here you might want to simulate a situation 
    // where the request cannot be created or fails due to some other reason.
    spf->deinitialize(); // Ensure the server is cleaned up before running this.
    
    EXPECT_THROW({
        spf->query("192.0.2.1", "mail.example.com", "test@example.com");
    }, std::runtime_error);
}

int main(int argc, char **argv) {
    ::testing::InitGoogleTest(&argc, argv);
    return RUN_ALL_TESTS();
}