from __future__ import annotations

from typing import Any

import pytest
from yuxi.channel.exceptions import ChannelErrorClassification
from yuxi.channel.message.models import RunAcceptedResponse
from yuxi.channel.plugins.builders import _BaseChannelPlugin
from yuxi.channel.plugins.protocol import (
    BindingConversationRef,
    BindingRoute,
    ChannelCapability,
    ChannelHealthStatus,
    ChannelMeta,
    ChannelPlugin,
    DeliveryCapabilities,
    DeliveryMode,
    InboundMedia,
    InboundMessage,
    InboundRequest,
    OutboundMessage,
    QRLoginSession,
    SessionConversationRef,
    Transport,
    TransportState,
    TransportType,
)
from yuxi.channel.ports import (
    ConfigPort,
    InboundPort,
    LifecyclePort,
    MetaPort,
    OutboundPort,
    SecurityPort,
    SessionPort,
    StatusPort,
    TransportPort,
)
from yuxi.channel.security.models import DmPolicy, GroupPolicy, RateLimitPolicy
from yuxi.channel.security.policy import SecurityCheckResult


class TestEnumsAndCapabilities:
    def test_channel_capability_flags(self):
        caps = ChannelCapability.TEXT | ChannelCapability.MARKDOWN
        assert ChannelCapability.TEXT in caps
        assert ChannelCapability.IMAGE not in caps

    def test_delivery_mode_values(self):
        assert DeliveryMode.DIRECT == "direct"
        assert DeliveryMode.GATEWAY == "gateway"
        assert DeliveryMode.HYBRID == "hybrid"

    def test_transport_type_values(self):
        assert TransportType.WEBHOOK == "webhook"
        assert TransportType.WEBSOCKET == "websocket"
        assert TransportType.POLLING == "polling"

    def test_transport_state_values(self):
        assert TransportState.CONNECTED == "connected"
        assert TransportState.DISCONNECTED == "disconnected"

    def test_channel_meta_defaults(self):
        meta = ChannelMeta(channel_type="test", display_name="Test")
        assert meta.aliases == []
        assert meta.capabilities == ChannelCapability.TEXT
        assert meta.delivery_mode == DeliveryMode.DIRECT
        assert meta.transport_type == TransportType.WEBHOOK
        assert meta.config_schema == {}
        assert meta.ui_hints == {}
        assert meta.sort_weight == 0
        assert meta.icon is None
        assert meta.description == ""

    def test_channel_meta_capability_matrix_defaults(self):
        from yuxi.channel.capabilities import CapabilityMatrix

        meta = ChannelMeta(channel_type="test", display_name="Test")
        assert meta.capability_matrix is not None
        assert isinstance(meta.capability_matrix, CapabilityMatrix)
        assert meta.capability_matrix.text is True
        assert meta.capability_matrix.markdown.value == "none"

    def test_inbound_media_defaults(self):
        media = InboundMedia(media_type="image")
        assert media.url is None
        assert media.file_key is None
        assert media.file_name is None
        assert media.size is None
        assert media.mime_type is None

    def test_outbound_message_defaults(self):
        msg = OutboundMessage(content="hello")
        assert msg.content_type == "text"
        assert msg.media == []
        assert msg.reply_to_channel_message_id is None
        assert msg.thread_id is None
        assert msg.extra == {}

    def test_channel_health_status_defaults(self):
        status = ChannelHealthStatus(healthy=True, state="ok", enabled=True)
        assert status.last_connected_at is None
        assert status.last_message_at is None
        assert status.last_error is None
        assert status.reconnect_attempts == 0

    def test_delivery_capabilities_defaults(self):
        caps = DeliveryCapabilities()
        assert caps.max_text_length == 4000
        assert caps.supports_markdown is False
        assert caps.supports_interactive is False
        assert caps.supports_media is False


class TestRuntimeCheckableProtocols:
    def test_inbound_request_protocol_with_fake_request(self):
        from yuxi.channel.common.fake_request import FakeRequest

        request = FakeRequest(config={}, body={})
        assert isinstance(request, InboundRequest)

    def test_channel_plugin_protocol_with_port_based_minimal_implementation(self):
        class MinimalPlugin(
            MetaPort,
            ConfigPort,
            InboundPort,
            OutboundPort,
            TransportPort,
            SecurityPort,
            StatusPort,
            LifecyclePort,
            SessionPort,
        ):
            def get_meta(self) -> ChannelMeta:
                return ChannelMeta(channel_type="test", display_name="Test")

            def validate_config(self, config: dict) -> tuple[bool, list[str]]:
                return True, []

            def list_account_ids(self, config: dict) -> list[str]:
                return []

            def resolve_account(self, config: dict, account_id: str | None = None) -> dict:
                return config

            async def validate_webhook(self, request: InboundRequest) -> bool:
                return True

            async def preprocess_event(
                self, request: InboundRequest, config: dict, account_id: str
            ) -> tuple[bool, dict[str, Any] | None, dict | None]:
                return True, None, {}

            async def normalize_inbound(self, request: InboundRequest) -> InboundMessage:
                return InboundMessage(channel_type="test", account_id="acc")

            async def build_webhook_response(
                self, request: InboundRequest, inbound: InboundMessage
            ) -> dict[str, Any] | None:
                return None

            async def resolve_account_id_from_webhook(self, request: InboundRequest) -> str | None:
                return None

            async def format_outbound(self, message: OutboundMessage, config: dict | None = None) -> dict:
                return {}

            async def send_message(
                self, channel_session_id: str, payload: dict, config: dict | None = None
            ) -> str | None:
                return None

            def chunk_text(self, text: str, limit: int) -> list[str]:
                return []

            def get_delivery_capabilities(self) -> DeliveryCapabilities:
                return DeliveryCapabilities()

            async def enrich_outbound(
                self, payload: dict, message: OutboundMessage, config: dict | None = None
            ) -> dict:
                return payload

            async def upload_media(self, media: InboundMedia | dict, config: dict | None = None) -> dict | None:
                return None

            def supports_batch_send(self, config: dict | None = None) -> bool:
                return False

            async def send_batch(
                self, channel_session_id: str, payloads: list[dict], config: dict | None = None
            ) -> list[str | None]:
                return []

            async def send_typing_indicator(self, channel_session_id: str, config: dict | None = None) -> None:
                return None

            def supports_content_type(self, content_type: str, config: dict | None = None) -> bool:
                return False

            async def create_transport(
                self, config: dict, account_id: str, credentials: dict | None = None
            ) -> Transport | None:
                return None

            async def on_transport_message(self, raw: bytes, config: dict, account_id: str) -> InboundMessage | None:
                return None

            def resolve_dm_policy(self, config: dict, account_id: str | None = None) -> DmPolicy | None:
                return None

            def resolve_group_policy(self, config: dict, account_id: str | None = None) -> GroupPolicy | None:
                return None

            def resolve_rate_limit_policy(self, config: dict, account_id: str | None = None) -> RateLimitPolicy | None:
                return None

            async def health_check(self, config: dict, account_id: str) -> ChannelHealthStatus:
                return ChannelHealthStatus(healthy=True, state="ok", enabled=True)

            async def on_config_changed(self, config: dict, account_id: str) -> None:
                return None

            async def on_account_removed(self, account_id: str) -> None:
                return None

            async def on_channel_enabled(self, config: dict, account_id: str) -> None:
                return None

            async def on_channel_disabled(self, config: dict, account_id: str) -> None:
                return None

            async def run_startup_maintenance(self, config: dict, account_id: str) -> None:
                return None

            def resolve_session_conversation(self, chat_type: str, raw_id: str) -> SessionConversationRef | None:
                return None

            def parse_session_key(self, inbound: InboundMessage) -> str:
                return "key"

        assert isinstance(MinimalPlugin(), ChannelPlugin)

    def test_channel_plugin_protocol_backward_compatibility(self):
        class LegacyMinimalPlugin:
            def get_meta(self) -> ChannelMeta: ...
            def validate_config(self, config: dict) -> tuple[bool, list[str]]: ...
            async def create_transport(self, config: dict, account_id: str) -> Transport | None: ...
            async def on_transport_message(
                self, raw: bytes, config: dict, account_id: str
            ) -> InboundMessage | None: ...
            async def validate_webhook(self, request: InboundRequest) -> bool: ...
            async def preprocess_event(
                self, request: InboundRequest, config: dict, account_id: str
            ) -> tuple[bool, dict[str, Any] | None, dict | None]: ...
            async def normalize_inbound(self, request: InboundRequest) -> InboundMessage: ...
            async def build_webhook_response(
                self, request: InboundRequest, inbound: InboundMessage
            ) -> dict[str, Any] | None: ...
            async def resolve_account_id_from_webhook(self, request: InboundRequest) -> str | None: ...
            async def format_outbound(self, message: OutboundMessage, config: dict | None = None) -> dict: ...
            async def send_message(
                self, channel_session_id: str, payload: dict, config: dict | None = None
            ) -> str | None: ...
            def chunk_text(self, text: str, limit: int) -> list[str]: ...
            def get_delivery_capabilities(self) -> DeliveryCapabilities: ...
            def resolve_session_conversation(self, chat_type: str, raw_id: str) -> SessionConversationRef | None: ...
            def parse_session_key(self, inbound: InboundMessage) -> str: ...
            def list_account_ids(self, config: dict) -> list[str]: ...
            def resolve_account(self, config: dict, account_id: str | None = None) -> dict: ...
            def resolve_dm_policy(self, config: dict, account_id: str | None = None) -> DmPolicy | None: ...
            def resolve_group_policy(self, config: dict, account_id: str | None = None) -> GroupPolicy | None: ...
            def resolve_rate_limit_policy(
                self, config: dict, account_id: str | None = None
            ) -> RateLimitPolicy | None: ...
            def compile_binding(self, config: dict, inbound: InboundMessage) -> Any | None: ...
            def match_binding(self, config: dict, binding: Any, inbound: InboundMessage) -> bool: ...
            def resolve_reply_to_mode(self, config: dict, inbound: InboundMessage) -> str | None: ...
            def resolve_auto_thread_id(self, config: dict, inbound: InboundMessage) -> str | None: ...
            def describe_actions(self, config: dict, inbound: InboundMessage) -> list[dict]: ...
            def handle_action(self, action: dict, config: dict, inbound: InboundMessage) -> dict | None: ...
            async def on_config_changed(self, config: dict, account_id: str) -> None: ...
            async def on_account_removed(self, account_id: str) -> None: ...
            async def on_channel_enabled(self, config: dict, account_id: str) -> None: ...
            async def on_channel_disabled(self, config: dict, account_id: str) -> None: ...
            async def run_startup_maintenance(self, config: dict, account_id: str) -> None: ...
            def classify_error(
                self, exc: Exception, payload: dict | None = None
            ) -> tuple[ChannelErrorClassification, int | None]: ...
            async def upload_media(self, media: InboundMedia | dict, config: dict | None = None) -> dict | None: ...
            async def send_typing_indicator(self, channel_session_id: str, config: dict | None = None) -> None: ...
            def supports_content_type(self, content_type: str, config: dict | None = None) -> bool: ...
            async def setup_webhook(self, config: dict, callback_url: str) -> bool: ...
            async def delete_webhook(self, config: dict) -> bool: ...
            async def edit_message(
                self, channel_session_id: str, channel_message_id: str, new_payload: dict, config: dict | None = None
            ) -> bool: ...
            async def delete_message(
                self, channel_session_id: str, channel_message_id: str, config: dict | None = None
            ) -> bool: ...
            def supports_batch_send(self, config: dict | None = None) -> bool: ...
            async def send_batch(
                self, channel_session_id: str, payloads: list[dict], config: dict | None = None
            ) -> list[str | None]: ...
            async def resolve_user_profile(self, sender_id: str, config: dict | None = None) -> dict | None: ...
            async def transform_inbound(self, raw_event: dict, config: dict | None = None) -> dict: ...
            async def enrich_outbound(
                self, payload: dict, message: OutboundMessage, config: dict | None = None
            ) -> dict: ...
            async def health_check(self, config: dict, account_id: str) -> ChannelHealthStatus: ...
            def supports_qr_login(self, config: dict | None = None) -> bool: ...
            async def create_qr_login_session(self, config: dict, account_id: str) -> QRLoginSession: ...
            async def poll_qr_login_status(
                self, session: QRLoginSession, config: dict, account_id: str
            ) -> QRLoginSession: ...
            async def load_qr_credentials(self, config: dict, account_id: str) -> QRLoginSession | None: ...
            async def logout_qr_login(self, config: dict, account_id: str) -> bool: ...
            def supports_scan_pairing(self, config: dict | None = None) -> bool: ...
            async def normalize_scan_event(
                self, request: Any, config: dict, account_id: str
            ) -> InboundMessage | None: ...
            async def build_pairing_qr_reply(
                self,
                pairing_code: str,
                qr_content: str,
                config: dict,
                account_id: str,
            ) -> OutboundMessage: ...
            async def download_attachment(
                self, inbound: InboundMessage, media: InboundMedia
            ) -> tuple[bytes, str] | None: ...

        assert isinstance(LegacyMinimalPlugin(), ChannelPlugin)

    def test_inbound_message_protocol_uses_dataclass_fields(self):
        msg = InboundMessage(channel_type="test", account_id="acc")
        assert msg.content == ""
        assert msg.content_type == "text"
        assert msg.media == []
        assert msg.is_at_bot is False
        assert msg.timestamp is None

    def test_binding_route_dataclass(self):
        route = BindingRoute(agent_id="agent", session_key="key", matched_by="rule")
        assert route.binding_rule_hash is None

    def test_binding_conversation_ref_defaults(self):
        ref = BindingConversationRef(session_key="key", channel_type="test", account_id="acc")
        assert ref.chat_type is None
        assert ref.peer_id is None
        assert ref.thread_id is None
        assert ref.binding_rule_hash == ""

    def test_session_conversation_ref_defaults(self):
        ref = SessionConversationRef(session_key="key")
        assert ref.chat_type is None
        assert ref.channel_sender_id is None
        assert ref.parent_conversation_candidates == []
        assert ref.channel_metadata == {}


class TestScanPairingExtension:
    class _ChannelPluginStub:
        def get_meta(self) -> ChannelMeta: ...
        def validate_config(self, config: dict) -> tuple[bool, list[str]]: ...
        async def create_transport(
            self, config: dict, account_id: str, credentials: dict | None = None
        ) -> Transport | None: ...
        async def on_transport_message(self, raw: bytes, config: dict, account_id: str) -> InboundMessage | None: ...
        async def validate_webhook(self, request: InboundRequest) -> bool: ...
        async def preprocess_event(
            self, request: InboundRequest, config: dict, account_id: str
        ) -> tuple[bool, dict[str, Any] | None, dict | None]: ...
        async def normalize_inbound(self, request: InboundRequest) -> InboundMessage: ...
        async def build_webhook_response(
            self, request: InboundRequest, inbound: InboundMessage
        ) -> dict[str, Any] | None: ...
        async def resolve_account_id_from_webhook(self, request: InboundRequest) -> str | None: ...
        async def format_outbound(self, message: OutboundMessage, config: dict | None = None) -> dict: ...
        async def send_message(
            self, channel_session_id: str, payload: dict, config: dict | None = None
        ) -> str | None: ...
        def chunk_text(self, text: str, limit: int) -> list[str]: ...
        def get_delivery_capabilities(self) -> DeliveryCapabilities: ...
        def resolve_session_conversation(self, chat_type: str, raw_id: str) -> SessionConversationRef | None: ...
        def parse_session_key(self, inbound: InboundMessage) -> str: ...
        def list_account_ids(self, config: dict) -> list[str]: ...
        def resolve_account(self, config: dict, account_id: str | None = None) -> dict: ...
        def resolve_dm_policy(self, config: dict, account_id: str | None = None) -> DmPolicy | None: ...
        def resolve_group_policy(self, config: dict, account_id: str | None = None) -> GroupPolicy | None: ...
        def resolve_rate_limit_policy(self, config: dict, account_id: str | None = None) -> RateLimitPolicy | None: ...
        def compile_binding(self, config: dict, inbound: InboundMessage) -> Any | None: ...
        def match_binding(self, config: dict, binding: Any, inbound: InboundMessage) -> bool: ...
        def resolve_reply_to_mode(self, config: dict, inbound: InboundMessage) -> str | None: ...
        def resolve_auto_thread_id(self, config: dict, inbound: InboundMessage) -> str | None: ...
        def describe_actions(self, config: dict, inbound: InboundMessage) -> list[dict]: ...
        def handle_action(self, action: dict, config: dict, inbound: InboundMessage) -> dict | None: ...
        async def on_config_changed(self, config: dict, account_id: str) -> None: ...
        async def on_account_removed(self, account_id: str) -> None: ...
        async def on_channel_enabled(self, config: dict, account_id: str) -> None: ...
        async def on_channel_disabled(self, config: dict, account_id: str) -> None: ...
        async def run_startup_maintenance(self, config: dict, account_id: str) -> None: ...
        def classify_error(
            self, exc: Exception, payload: dict | None = None
        ) -> tuple[ChannelErrorClassification, int | None]: ...
        async def upload_media(self, media: InboundMedia | dict, config: dict | None = None) -> dict | None: ...
        async def send_typing_indicator(self, channel_session_id: str, config: dict | None = None) -> None: ...
        def supports_content_type(self, content_type: str, config: dict | None = None) -> bool: ...
        async def setup_webhook(self, config: dict, callback_url: str) -> bool: ...
        async def delete_webhook(self, config: dict) -> bool: ...
        async def edit_message(
            self,
            channel_session_id: str,
            channel_message_id: str,
            new_payload: dict,
            config: dict | None = None,
        ) -> bool: ...
        async def delete_message(
            self,
            channel_session_id: str,
            channel_message_id: str,
            config: dict | None = None,
        ) -> bool: ...
        def supports_batch_send(self, config: dict | None = None) -> bool: ...
        async def send_batch(
            self, channel_session_id: str, payloads: list[dict], config: dict | None = None
        ) -> list[str | None]: ...
        async def resolve_user_profile(self, sender_id: str, config: dict | None = None) -> dict | None: ...
        async def transform_inbound(self, raw_event: dict, config: dict | None = None) -> dict: ...
        async def enrich_outbound(
            self, payload: dict, message: OutboundMessage, config: dict | None = None
        ) -> dict: ...
        def supports_qr_login(self, config: dict | None = None) -> bool: ...
        async def create_qr_login_session(self, config: dict, account_id: str) -> QRLoginSession: ...
        async def poll_qr_login_status(
            self, session: QRLoginSession, config: dict, account_id: str
        ) -> QRLoginSession: ...
        async def load_qr_credentials(self, config: dict, account_id: str) -> QRLoginSession | None: ...
        async def logout_qr_login(self, config: dict, account_id: str) -> bool: ...
        async def health_check(self, config: dict, account_id: str) -> ChannelHealthStatus: ...
        async def download_attachment(
            self, inbound: InboundMessage, media: InboundMedia
        ) -> tuple[bytes, str] | None: ...

    @pytest.mark.unit
    def test_inbound_message_scan_event_default(self):
        msg = InboundMessage(channel_type="test", account_id="acc")
        assert msg.is_scan_event is False
        scan_msg = InboundMessage(channel_type="test", account_id="acc", is_scan_event=True)
        assert scan_msg.is_scan_event is True

    @pytest.mark.unit
    def test_run_accepted_response_scan_pairing_fields(self):
        reply = OutboundMessage(content="scan me")
        response = RunAcceptedResponse(
            accepted=False,
            pairing_code="CODE123",
            qr_content="https://example.com/bind?code=CODE123",
            qr_reply=reply,
        )
        assert response.qr_content == "https://example.com/bind?code=CODE123"
        assert response.qr_reply is reply

    @pytest.mark.unit
    def test_security_check_result_scan_pairing_fields(self):
        reply = OutboundMessage(content="scan me")
        result = SecurityCheckResult(
            allowed=False,
            pairing_code="CODE123",
            qr_content="https://example.com/bind?code=CODE123",
            qr_reply=reply,
        )
        assert result.qr_content == "https://example.com/bind?code=CODE123"
        assert result.qr_reply is reply

    @pytest.mark.unit
    def test_channel_plugin_with_scan_pairing_methods(self):
        class PluginWithScanPairing(self._ChannelPluginStub):
            def supports_scan_pairing(self, config: dict | None = None) -> bool:
                return True

            async def normalize_scan_event(
                self,
                request: Any,
                config: dict,
                account_id: str,
            ) -> InboundMessage | None:
                return None

            async def build_pairing_qr_reply(
                self,
                pairing_code: str,
                qr_content: str,
                config: dict,
                account_id: str,
            ) -> OutboundMessage:
                return OutboundMessage(content=qr_content)

        assert isinstance(PluginWithScanPairing(), ChannelPlugin)

    @pytest.mark.unit
    def test_channel_plugin_without_scan_pairing_methods_passes_isinstance(self):
        """_BaseChannelPlugin 提供扫码配对默认实现，未重写这些方法仍满足 Protocol。"""

        class PluginWithoutScanPairing(_BaseChannelPlugin):
            pass

        meta = ChannelMeta(channel_type="test", display_name="Test")
        plugin = PluginWithoutScanPairing(meta=meta, adapters={})
        assert isinstance(plugin, ChannelPlugin)

    @pytest.mark.unit
    async def test_base_channel_plugin_scan_pairing_defaults(self):
        meta = ChannelMeta(channel_type="test", display_name="Test")
        plugin = _BaseChannelPlugin(meta=meta, adapters={})
        assert isinstance(plugin, ChannelPlugin)
        assert plugin.supports_scan_pairing(None) is False
        assert plugin.supports_scan_pairing({}) is False
        assert plugin.supports_scan_pairing({"pairing": {"mode": "code"}}) is False
        assert plugin.supports_scan_pairing({"pairing": {"mode": "qr"}}) is True
        assert plugin.supports_scan_pairing({"pairing": {"mode": "both"}}) is True

        normalized = await plugin.normalize_scan_event(None, {}, "acc")
        assert normalized is None

        reply = await plugin.build_pairing_qr_reply("CODE123", "qr-content", {}, "acc")
        assert isinstance(reply, OutboundMessage)
        assert reply.content == "请扫描下方二维码完成绑定：CODE123"
        assert reply.content_type == "text"