"""
Test suite for JobLike Protocol
Tests cover protocol definition, compliance checking, and structural typing
"""

from typing import Any, Dict

from xfintech.data.job.joblike import JobLike

# ============================================================================
# Helper Classes for Testing
# ============================================================================


class CompliantJob:
    """Class that implements JobLike protocol"""

    def run(self) -> Any:
        return self._run()

    def _run(self) -> Any:
        return {"result": "success"}

    def describe(self) -> Dict[str, Any]:
        return {"name": "CompliantJob", "type": "test"}

    def to_dict(self) -> Dict[str, Any]:
        return {"name": "CompliantJob", "status": "active"}


class PartialJob:
    """Class that partially implements JobLike protocol"""

    def run(self) -> Any:
        return "result"

    def _run(self) -> Any:
        return "internal"

    def describe(self) -> Dict[str, Any]:
        return {"name": "PartialJob"}

    # Missing to_dict method


class NonCompliantJob:
    """Class that doesn't implement JobLike protocol"""

    def execute(self) -> Any:
        return "result"


class MinimalJob:
    """Minimal implementation of JobLike"""

    def run(self):
        return None

    def _run(self):
        return None

    def describe(self):
        return {}

    def to_dict(self):
        return {}


# ============================================================================
# Protocol Compliance Tests
# ============================================================================


def test_joblike_compliant_job():
    """Test that compliant class is recognized as JobLike"""
    job = CompliantJob()
    assert isinstance(job, JobLike)


def test_joblike_partial_job():
    """Test that partial implementation is not recognized as JobLike"""
    job = PartialJob()
    # Missing to_dict, so should not be fully compliant
    # Note: runtime_checkable only checks for method existence
    assert isinstance(job, JobLike) is False


def test_joblike_non_compliant_job():
    """Test that non-compliant class is not recognized as JobLike"""
    job = NonCompliantJob()
    assert isinstance(job, JobLike) is False


def test_joblike_minimal_job():
    """Test minimal implementation is recognized as JobLike"""
    job = MinimalJob()
    assert isinstance(job, JobLike)


# ============================================================================
# Protocol Method Tests
# ============================================================================


def test_joblike_has_run_method():
    """Test JobLike protocol requires run method"""
    job = CompliantJob()
    assert hasattr(job, "run")
    assert callable(job.run)


def test_joblike_has_private_run_method():
    """Test JobLike protocol requires _run method"""
    job = CompliantJob()
    assert hasattr(job, "_run")
    assert callable(job._run)


def test_joblike_has_describe_method():
    """Test JobLike protocol requires describe method"""
    job = CompliantJob()
    assert hasattr(job, "describe")
    assert callable(job.describe)


def test_joblike_has_to_dict_method():
    """Test JobLike protocol requires to_dict method"""
    job = CompliantJob()
    assert hasattr(job, "to_dict")
    assert callable(job.to_dict)


# ============================================================================
# Method Signature Tests
# ============================================================================


def test_joblike_run_returns_any():
    """Test run method can return any type"""
    job = CompliantJob()
    result = job.run()
    assert result is not None


def test_joblike_private_run_returns_any():
    """Test _run method can return any type"""
    job = CompliantJob()
    result = job._run()
    assert result == {"result": "success"}


def test_joblike_describe_returns_dict():
    """Test describe method returns dict"""
    job = CompliantJob()
    result = job.describe()
    assert isinstance(result, dict)
    assert "name" in result


def test_joblike_to_dict_returns_dict():
    """Test to_dict method returns dict"""
    job = CompliantJob()
    result = job.to_dict()
    assert isinstance(result, dict)
    assert "name" in result


# ============================================================================
# Protocol Usage Tests
# ============================================================================


def test_joblike_as_type_annotation():
    """Test JobLike can be used as type annotation"""

    def process_job(job: JobLike) -> Dict[str, Any]:
        return job.describe()

    job = CompliantJob()
    result = process_job(job)

    assert isinstance(result, dict)
    assert result["name"] == "CompliantJob"


def test_joblike_type_checking():
    """Test JobLike enables structural type checking"""

    def execute_job(job: JobLike) -> Any:
        return job.run()

    compliant = CompliantJob()
    result = execute_job(compliant)

    assert result == {"result": "success"}


def test_joblike_duck_typing():
    """Test JobLike supports duck typing"""

    class DuckTypedJob:
        def run(self):
            return "duck result"

        def _run(self):
            return "internal duck"

        def describe(self):
            return {"type": "duck"}

        def to_dict(self):
            return {"duck": True}

    job = DuckTypedJob()
    assert isinstance(job, JobLike)


# ============================================================================
# Protocol Instance Tests
# ============================================================================


def test_joblike_multiple_implementations():
    """Test multiple classes can implement JobLike"""

    class Job1:
        def run(self):
            return 1

        def _run(self):
            return 1

        def describe(self):
            return {}

        def to_dict(self):
            return {}

    class Job2:
        def run(self):
            return 2

        def _run(self):
            return 2

        def describe(self):
            return {}

        def to_dict(self):
            return {}

    job1 = Job1()
    job2 = Job2()

    assert isinstance(job1, JobLike)
    assert isinstance(job2, JobLike)


def test_joblike_inheritance_not_required():
    """Test classes don't need to inherit from JobLike"""

    class IndependentJob:
        def run(self):
            return "independent"

        def _run(self):
            return "internal"

        def describe(self):
            return {"independent": True}

        def to_dict(self):
            return {"independent": True}

    job = IndependentJob()
    # Should be recognized as JobLike due to structural typing
    assert isinstance(job, JobLike)


# ============================================================================
# Edge Case Tests
# ============================================================================


def test_joblike_with_extra_methods():
    """Test class with extra methods is still JobLike compliant"""

    class ExtendedJob:
        def run(self):
            return "extended"

        def _run(self):
            return "internal"

        def describe(self):
            return {}

        def to_dict(self):
            return {}

        def extra_method(self):
            return "extra"

        def another_method(self):
            return "another"

    job = ExtendedJob()
    assert isinstance(job, JobLike)
    assert hasattr(job, "extra_method")


def test_joblike_with_properties():
    """Test class with properties can be JobLike compliant"""

    class PropertyJob:
        def __init__(self):
            self.name = "PropertyJob"

        def run(self):
            return self.name

        def _run(self):
            return self.name

        def describe(self):
            return {"name": self.name}

        def to_dict(self):
            return {"name": self.name}

    job = PropertyJob()
    assert isinstance(job, JobLike)


def test_joblike_method_with_arguments():
    """Test JobLike methods can accept arguments"""

    class ArgJob:
        def run(self, *args, **kwargs):
            return "with args"

        def _run(self, *args, **kwargs):
            return "internal with args"

        def describe(self, verbose=False):
            return {"verbose": verbose}

        def to_dict(self, include_meta=True):
            return {"meta": include_meta}

    job = ArgJob()
    assert isinstance(job, JobLike)


# ============================================================================
# Protocol Validation Tests
# ============================================================================


def test_joblike_missing_run():
    """Test class missing run method is not JobLike"""

    class MissingRun:
        def _run(self):
            return None

        def describe(self):
            return {}

        def to_dict(self):
            return {}

    job = MissingRun()
    assert not isinstance(job, JobLike)


def test_joblike_missing_private_run():
    """Test class missing _run method is not JobLike"""

    class MissingPrivateRun:
        def run(self):
            return None

        def describe(self):
            return {}

        def to_dict(self):
            return {}

    job = MissingPrivateRun()
    assert not isinstance(job, JobLike)


def test_joblike_missing_describe():
    """Test class missing describe method is not JobLike"""

    class MissingDescribe:
        def run(self):
            return None

        def _run(self):
            return None

        def to_dict(self):
            return {}

    job = MissingDescribe()
    assert not isinstance(job, JobLike)


def test_joblike_missing_to_dict():
    """Test class missing to_dict method is not JobLike"""

    class MissingToDict:
        def run(self):
            return None

        def _run(self):
            return None

        def describe(self):
            return {}

    job = MissingToDict()
    assert not isinstance(job, JobLike)


# ============================================================================
# Integration Tests
# ============================================================================


def test_joblike_function_parameter():
    """Test JobLike as function parameter type"""

    def execute_and_describe(job: JobLike) -> tuple:
        result = job.run()
        description = job.describe()
        return result, description

    job = CompliantJob()
    result, desc = execute_and_describe(job)

    assert result == {"result": "success"}
    assert desc["name"] == "CompliantJob"


def test_joblike_list_of_jobs():
    """Test list of JobLike objects"""
    jobs = [CompliantJob(), MinimalJob()]

    for job in jobs:
        assert isinstance(job, JobLike)
        assert callable(job.run)


def test_joblike_runtime_check():
    """Test runtime_checkable allows isinstance checks"""

    class RuntimeJob:
        def run(self):
            return "runtime"

        def _run(self):
            return "internal"

        def describe(self):
            return {"runtime": True}

        def to_dict(self):
            return {"runtime": True}

    job = RuntimeJob()

    # This works because Protocol is runtime_checkable
    assert isinstance(job, JobLike)


def test_joblike_protocol_documentation():
    """Test JobLike protocol has documentation"""
    assert JobLike.__doc__ is not None
    assert "描述" in JobLike.__doc__
