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

from typing import Any, Dict

from xfintech.data.relay.clientlike import RelayClientLike

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


class CompliantClient:
    """Class that implements RelayClientLike protocol"""

    def __init__(self):
        self.url = "https://relay.example.com"
        self.secret = "test-secret"
        self.timeout = 180

    def call(self) -> Any:
        return {"status": "success"}


class PartialClient:
    """Class that partially implements RelayClientLike protocol"""

    def __init__(self):
        self.url = "https://relay.example.com"
        self.secret = "test-secret"
        # Missing timeout attribute

    def call(self) -> Any:
        return {"status": "partial"}


class NonCompliantClient:
    """Class that doesn't implement RelayClientLike protocol"""

    def __init__(self):
        self.endpoint = "https://relay.example.com"
        self.key = "test-key"

    def execute(self) -> Any:
        return {"status": "non-compliant"}


class MinimalClient:
    """Minimal implementation of RelayClientLike"""

    url: str = "https://minimal.example.com"
    secret: str = "minimal-secret"
    timeout: int = 60

    def call(self):
        return None


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


def test_relayclientlike_compliant_client():
    """Test that compliant class is recognized as RelayClientLike"""
    client = CompliantClient()
    assert isinstance(client, RelayClientLike)


def test_relayclientlike_partial_client():
    """Test that partial implementation is not recognized as RelayClientLike"""
    client = PartialClient()
    # Missing timeout, so should not be fully compliant
    assert isinstance(client, RelayClientLike) is False


def test_relayclientlike_non_compliant_client():
    """Test that non-compliant class is not recognized as RelayClientLike"""
    client = NonCompliantClient()
    assert isinstance(client, RelayClientLike) is False


def test_relayclientlike_minimal_client():
    """Test minimal implementation is recognized as RelayClientLike"""
    client = MinimalClient()
    assert isinstance(client, RelayClientLike)


# ============================================================================
# Protocol Attribute Tests
# ============================================================================


def test_relayclientlike_has_url_attribute():
    """Test RelayClientLike protocol requires url attribute"""
    client = CompliantClient()
    assert hasattr(client, "url")
    assert isinstance(client.url, str)


def test_relayclientlike_has_secret_attribute():
    """Test RelayClientLike protocol requires secret attribute"""
    client = CompliantClient()
    assert hasattr(client, "secret")
    assert isinstance(client.secret, str)


def test_relayclientlike_has_timeout_attribute():
    """Test RelayClientLike protocol requires timeout attribute"""
    client = CompliantClient()
    assert hasattr(client, "timeout")
    assert isinstance(client.timeout, int)


def test_relayclientlike_has_call_method():
    """Test RelayClientLike protocol requires call method"""
    client = CompliantClient()
    assert hasattr(client, "call")
    assert callable(client.call)


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


def test_relayclientlike_call_returns_any():
    """Test call method can return any type"""
    client = CompliantClient()
    result = client.call()
    assert result is not None


def test_relayclientlike_call_execution():
    """Test call method executes correctly"""
    client = CompliantClient()
    result = client.call()
    assert result == {"status": "success"}


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


def test_relayclientlike_as_type_annotation():
    """Test RelayClientLike can be used as type annotation"""

    def process_client(client: RelayClientLike) -> Any:
        return client.call()

    client = CompliantClient()
    result = process_client(client)

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


def test_relayclientlike_type_checking():
    """Test RelayClientLike enables structural type checking"""

    def get_client_info(client: RelayClientLike) -> Dict[str, Any]:
        return {"url": client.url, "timeout": client.timeout}

    client = CompliantClient()
    info = get_client_info(client)

    assert info["url"] == "https://relay.example.com"
    assert info["timeout"] == 180


def test_relayclientlike_duck_typing():
    """Test RelayClientLike supports duck typing"""

    class DuckTypedClient:
        def __init__(self):
            self.url = "https://duck.example.com"
            self.secret = "duck-secret"
            self.timeout = 120

        def call(self):
            return "duck result"

    client = DuckTypedClient()
    assert isinstance(client, RelayClientLike)


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


def test_relayclientlike_multiple_implementations():
    """Test multiple classes can implement RelayClientLike"""

    class Client1:
        url = "https://client1.example.com"
        secret = "secret1"
        timeout = 100

        def call(self):
            return 1

    class Client2:
        url = "https://client2.example.com"
        secret = "secret2"
        timeout = 200

        def call(self):
            return 2

    client1 = Client1()
    client2 = Client2()

    assert isinstance(client1, RelayClientLike)
    assert isinstance(client2, RelayClientLike)


def test_relayclientlike_inheritance_not_required():
    """Test classes don't need to inherit from RelayClientLike"""

    class IndependentClient:
        url = "https://independent.example.com"
        secret = "independent-secret"
        timeout = 150

        def call(self):
            return "independent"

    client = IndependentClient()
    # Should be recognized as RelayClientLike due to structural typing
    assert isinstance(client, RelayClientLike)


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


def test_relayclientlike_with_extra_attributes():
    """Test class with extra attributes is still RelayClientLike compliant"""

    class ExtendedClient:
        url = "https://extended.example.com"
        secret = "extended-secret"
        timeout = 200
        extra_attr = "extra"
        another_attr = 42

        def call(self):
            return "extended"

        def extra_method(self):
            return "extra"

    client = ExtendedClient()
    assert isinstance(client, RelayClientLike)
    assert hasattr(client, "extra_attr")


def test_relayclientlike_with_properties():
    """Test class with properties can be RelayClientLike compliant"""

    class PropertyClient:
        def __init__(self):
            self._url = "https://property.example.com"
            self._secret = "property-secret"
            self._timeout = 180

        @property
        def url(self):
            return self._url

        @property
        def secret(self):
            return self._secret

        @property
        def timeout(self):
            return self._timeout

        def call(self):
            return "property result"

    client = PropertyClient()
    assert isinstance(client, RelayClientLike)


def test_relayclientlike_call_with_arguments():
    """Test RelayClientLike call method can accept arguments"""

    class ArgClient:
        url = "https://arg.example.com"
        secret = "arg-secret"
        timeout = 180

        def call(self, *args, **kwargs):
            return f"args: {args}, kwargs: {kwargs}"

    client = ArgClient()
    assert isinstance(client, RelayClientLike)


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


def test_relayclientlike_missing_url():
    """Test class missing url attribute is not RelayClientLike"""

    class MissingUrl:
        secret = "secret"
        timeout = 180

        def call(self):
            return None

    client = MissingUrl()
    assert not isinstance(client, RelayClientLike)


def test_relayclientlike_missing_secret():
    """Test class missing secret attribute is not RelayClientLike"""

    class MissingSecret:
        url = "https://example.com"
        timeout = 180

        def call(self):
            return None

    client = MissingSecret()
    assert not isinstance(client, RelayClientLike)


def test_relayclientlike_missing_timeout():
    """Test class missing timeout attribute is not RelayClientLike"""

    class MissingTimeout:
        url = "https://example.com"
        secret = "secret"

        def call(self):
            return None

    client = MissingTimeout()
    assert not isinstance(client, RelayClientLike)


def test_relayclientlike_missing_call():
    """Test class missing call method is not RelayClientLike"""

    class MissingCall:
        url = "https://example.com"
        secret = "secret"
        timeout = 180

    client = MissingCall()
    assert not isinstance(client, RelayClientLike)


def test_relayclientlike_wrong_attribute_types():
    """Test class with wrong attribute types can still be RelayClientLike"""

    class WrongTypes:
        url = 123  # Should be string but protocol doesn't enforce at runtime
        secret = ["list"]  # Should be string
        timeout = "180"  # Should be int

        def call(self):
            return None

    client = WrongTypes()
    # runtime_checkable only checks existence, not types
    assert isinstance(client, RelayClientLike)


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


def test_relayclientlike_function_parameter():
    """Test RelayClientLike as function parameter type"""

    def execute_and_get_url(client: RelayClientLike) -> tuple:
        result = client.call()
        url = client.url
        return result, url

    client = CompliantClient()
    result, url = execute_and_get_url(client)

    assert result == {"status": "success"}
    assert url == "https://relay.example.com"


def test_relayclientlike_list_of_clients():
    """Test list of RelayClientLike objects"""
    clients = [CompliantClient(), MinimalClient()]

    for client in clients:
        assert isinstance(client, RelayClientLike)
        assert callable(client.call)


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

    class RuntimeClient:
        url = "https://runtime.example.com"
        secret = "runtime-secret"
        timeout = 180

        def call(self):
            return "runtime"

    client = RuntimeClient()

    # This works because Protocol is runtime_checkable
    assert isinstance(client, RelayClientLike)


def test_relayclientlike_protocol_not_instantiable():
    """Test RelayClientLike protocol itself cannot be instantiated"""
    # Protocols are not meant to be instantiated directly
    # This test verifies the protocol behavior

    # We can create instances that conform to the protocol
    client = CompliantClient()
    assert isinstance(client, RelayClientLike)

    # But we can't instantiate the protocol itself
    # (This would fail: client = RelayClientLike())


def test_relayclientlike_with_dataclass():
    """Test RelayClientLike with dataclass"""
    from dataclasses import dataclass

    @dataclass
    class DataClient:
        url: str = "https://data.example.com"
        secret: str = "data-secret"
        timeout: int = 180

        def call(self):
            return "data result"

    client = DataClient()
    assert isinstance(client, RelayClientLike)


def test_relayclientlike_attribute_access():
    """Test accessing protocol attributes"""
    client = CompliantClient()

    # Can access all protocol-defined attributes
    assert client.url == "https://relay.example.com"
    assert client.secret == "test-secret"
    assert client.timeout == 180

    # Can call protocol-defined method
    result = client.call()
    assert result is not None


def test_relayclientlike_polymorphism():
    """Test polymorphic behavior with RelayClientLike"""
    clients = [
        CompliantClient(),
        MinimalClient(),
    ]

    results = [client.call() for client in clients]

    assert len(results) == 2
    assert results[0] == {"status": "success"}
    assert results[1] is None


# ============================================================================
# Protocol Documentation Tests
# ============================================================================


def test_relayclientlike_is_protocol():
    """Test RelayClientLike is a Protocol"""
    from typing import Protocol

    assert issubclass(RelayClientLike, Protocol)


def test_relayclientlike_is_runtime_checkable():
    """Test RelayClientLike is runtime_checkable"""

    # Check if the decorator was applied
    assert hasattr(RelayClientLike, "__protocol_attrs__") or hasattr(RelayClientLike, "_is_runtime_protocol")
