#include "test_utils.h"

UnittestTestResult_t* test_interface_with_implementing_class(void) {
    UNITTEST_BEGIN_TEST("TestInterfaces", "test_interface_with_implementing_class");

    RAVA_TEST_RUN(_unittest_result,
        "interface Addable {\n"
        "    int add(int a, int b);\n"
        "}\n"
        "class Calculator implements Addable {\n"
        "    int add(int a, int b) {\n"
        "        return a + b;\n"
        "    }\n"
        "}\n"
        "public class Test {\n"
        "    public static int main() {\n"
        "        Calculator calc = new Calculator();\n"
        "        return calc.add(10, 20);\n"
        "    }\n"
        "}\n",
        "Test", "main", 30, "interface with implementing class should return 30");

    UNITTEST_END_TEST();
}

UnittestTestResult_t* test_multiple_interfaces(void) {
    UNITTEST_BEGIN_TEST("TestInterfaces", "test_multiple_interfaces");

    RAVA_TEST_RUN(_unittest_result,
        "interface Addable {\n"
        "    int add(int a, int b);\n"
        "}\n"
        "interface Subtractable {\n"
        "    int subtract(int a, int b);\n"
        "}\n"
        "class Calculator implements Addable, Subtractable {\n"
        "    int add(int a, int b) {\n"
        "        return a + b;\n"
        "    }\n"
        "    int subtract(int a, int b) {\n"
        "        return a - b;\n"
        "    }\n"
        "}\n"
        "public class Test {\n"
        "    public static int main() {\n"
        "        Calculator calc = new Calculator();\n"
        "        return calc.add(100, 50) - calc.subtract(30, 10);\n"
        "    }\n"
        "}\n",
        "Test", "main", 130, "class implements multiple interfaces should return 130");

    UNITTEST_END_TEST();
}

UnittestTestResult_t* test_extends_and_implements(void) {
    UNITTEST_BEGIN_TEST("TestInterfaces", "test_extends_and_implements");

    RAVA_TEST_RUN(_unittest_result,
        "interface Printable {\n"
        "    int getValue();\n"
        "}\n"
        "class Base {\n"
        "    int baseValue;\n"
        "    Base() {\n"
        "        this.baseValue = 100;\n"
        "    }\n"
        "}\n"
        "class Derived extends Base implements Printable {\n"
        "    int getValue() {\n"
        "        return this.baseValue + 50;\n"
        "    }\n"
        "}\n"
        "public class Test {\n"
        "    public static int main() {\n"
        "        Derived d = new Derived();\n"
        "        return d.getValue();\n"
        "    }\n"
        "}\n",
        "Test", "main", 150, "class extends and implements should return 150");

    UNITTEST_END_TEST();
}

UnittestTestResult_t* test_empty_interface(void) {
    UNITTEST_BEGIN_TEST("TestInterfaces", "test_empty_interface");

    RAVA_TEST_RUN(_unittest_result,
        "interface Empty {\n"
        "}\n"
        "class MyClass implements Empty {\n"
        "    int getValue() {\n"
        "        return 42;\n"
        "    }\n"
        "}\n"
        "public class Test {\n"
        "    public static int main() {\n"
        "        MyClass obj = new MyClass();\n"
        "        return obj.getValue();\n"
        "    }\n"
        "}\n",
        "Test", "main", 42, "empty interface should return 42");

    UNITTEST_END_TEST();
}

int main(int argc, char **argv) {
    UnittestConfig_t *config = unittest_config_create();
    config->verbosity = 2;

    if (argc > 1 && strcmp(argv[1], "--json") == 0) {
        config->output_format = UNITTEST_FORMAT_JSON;
        config->use_colors = false;
    }

    UnittestTestSuite_t *suite = unittest_test_suite_create("Interface Tests");

    UnittestTestCase_t *tc = unittest_test_case_create("TestInterfaces");
    unittest_test_case_add_result(tc, test_interface_with_implementing_class());
    unittest_test_case_add_result(tc, test_multiple_interfaces());
    unittest_test_case_add_result(tc, test_extends_and_implements());
    unittest_test_case_add_result(tc, test_empty_interface());
    unittest_test_suite_add_test_case(suite, tc);

    unittest_generate_report(suite, config);

    int failures = suite->total_failed + suite->total_errors;
    unittest_test_suite_destroy(suite);
    unittest_config_destroy(config);

    return failures > 0 ? 1 : 0;
}