/**
 * @file tests/tests_common.h
 * @brief Common declarations.
 */
#pragma once
#include <gtest/gtest.h>
#include <src/globals.h>
#include <src/logging.h>
#include <src/platform/common.h>

// XFail/XPass pattern implementation (similar to pytest)
namespace test_utils {
  /**
   * @brief Marks a test as expected to fail
   * @param condition The condition under which the test is expected to fail
   * @param reason The reason why the test is expected to fail
   */
  struct XFailMarker {
    bool should_xfail;
    std::string reason;

    XFailMarker(bool condition, std::string reason):
        should_xfail(condition),
        reason(std::move(reason)) {}
  };

  /**
   * @brief Helper function to handle xfail logic
   * @param marker The XFailMarker containing condition and reason
   * @param test_passed Whether the test actually passed
   */
  inline void handleXFail(const XFailMarker &marker, bool test_passed) {
    if (marker.should_xfail) {
      if (test_passed) {
        // XPass: Test was expected to fail but passed
        const std::string message = "XPASS: Test unexpectedly passed (expected to fail: " + marker.reason + ")";
        BOOST_LOG(warning) << message;
        GTEST_SKIP() << "XPASS: Test unexpectedly passed (expected to fail: " << marker.reason << ")";
      } else {
        // XFail: Test failed as expected
        const std::string message = "XFAIL: Test failed as expected (" + marker.reason + ")";
        BOOST_LOG(info) << message;
        GTEST_SKIP() << "XFAIL: " << marker.reason;
      }
    }
    // If not marked as xfail, let the test result stand as normal
  }

  /**
   * @brief Check if two values are equal without failing the test
   * @param actual The actual value
   * @param expected The expected value
   * @param message Optional message to include
   * @return true if values are equal, false otherwise
   */
  template<typename T1, typename T2>
  inline bool checkEqual(const T1 &actual, const T2 &expected, const std::string &message = "") {
    bool result = (actual == expected);
    if (!message.empty()) {
      BOOST_LOG(debug) << "Assertion check: " << message << " - " << (result ? "PASSED" : "FAILED");
    }
    return result;
  }

  /**
   * @brief Check if two values are not equal without failing the test
   * @param actual The actual value
   * @param expected The expected value
   * @param message Optional message to include
   * @return true if values are not equal, false otherwise
   */
  template<typename T1, typename T2>
  inline bool checkNotEqual(const T1 &actual, const T2 &expected, const std::string &message = "") {
    const bool result = (actual != expected);
    if (!message.empty()) {
      BOOST_LOG(debug) << "Assertion check: " << message << " - " << (result ? "PASSED" : "FAILED");
    }
    return result;
  }
}  // namespace test_utils

// Convenience macros for xfail testing
#define XFAIL_IF(condition, reason) \
  test_utils::XFailMarker xfail_marker((condition), (reason))

#define HANDLE_XFAIL_ASSERT_EQ(actual, expected, message) \
  do { \
    if (xfail_marker.should_xfail) { \
      /* For xfail tests, check the assertion without failing */ \
      bool test_passed = test_utils::checkEqual((actual), (expected), (message)); \
      test_utils::handleXFail(xfail_marker, test_passed); \
    } else { \
      /* Run the normal GTest assertion if not marked as xfail */ \
      EXPECT_EQ((actual), (expected)) << (message); \
    } \
  } while (0)

#define HANDLE_XFAIL_ASSERT_NE(actual, expected, message) \
  do { \
    if (xfail_marker.should_xfail) { \
      /* For xfail tests, check the assertion without failing */ \
      bool test_passed = test_utils::checkNotEqual((actual), (expected), (message)); \
      test_utils::handleXFail(xfail_marker, test_passed); \
    } else { \
      /* Run the normal GTest assertion if not marked as xfail */ \
      EXPECT_NE((actual), (expected)) << (message); \
    } \
  } while (0)

// Platform detection macros for convenience
#ifdef _WIN32
  #define IS_WINDOWS true
#else
  #define IS_WINDOWS false
#endif

#ifdef __linux__
  #define IS_LINUX true
#else
  #define IS_LINUX false
#endif

#ifdef __APPLE__
  #define IS_MACOS true
#else
  #define IS_MACOS false
#endif

#ifdef __FreeBSD__
  #define IS_FREEBSD true
#else
  #define IS_FREEBSD false
#endif

struct PlatformTestSuite: testing::Test {
  static void SetUpTestSuite() {
    ASSERT_FALSE(platf_deinit);
    BOOST_LOG(tests) << "Setting up platform test suite";
    platf_deinit = platf::init();
    ASSERT_TRUE(platf_deinit);
  }

  static void TearDownTestSuite() {
    ASSERT_TRUE(platf_deinit);
    platf_deinit = {};
    BOOST_LOG(tests) << "Tore down platform test suite";
  }

private:
  inline static std::unique_ptr<platf::deinit_t> platf_deinit;
};