import unittest
from types import SimpleNamespace
from unittest.mock import Mock

from fastapi import HTTPException

from models import Avatar, User
from routers.chat import _build_prompt, _match_standard_qa, _require_owned_avatar, _resolve_reply


class ChatOrchestrationTests(unittest.TestCase):
    def setUp(self):
        self.avatar = SimpleNamespace(
            id="avatar-1",
            owner_id="huihui-user-1",
            config={
                "replyStyle": "professional",
                "creativity": 50,
                "rigor": 80,
                "humor": 20,
                "responseLength": "medium",
                "systemPrompt": "不要编造政策。",
            },
        )
        self.qa = SimpleNamespace(question="公司地址？", answer="标准地址", enabled=True)
        self.disabled_qa = SimpleNamespace(question="公司地址？", answer="错误答案", enabled=False)

    def test_enabled_qa_wins_without_calling_model(self):
        fake_model = Mock()
        result = _resolve_reply(
            None,
            self.avatar,
            "  公司地址？ ",
            [],
            qa_pairs=[self.disabled_qa, self.qa],
            search_fn=lambda *_args, **_kwargs: [],
            model_client=fake_model,
        )
        self.assertEqual(result["source"], "qa")
        self.assertEqual(result["answer"], "标准地址")
        fake_model.assert_not_called()

    def test_knowledge_context_is_sent_to_qwen_after_qa_miss(self):
        fake_model = Mock(return_value="根据知识库内容回答")
        knowledge_hit = {
            "filename": "退款.md",
            "snippet": "知识库内容：七日内可申请退款。",
            "score": 0.92,
        }
        result = _resolve_reply(
            None,
            self.avatar,
            "退款规则",
            [],
            qa_pairs=[],
            search_fn=lambda *_args, **_kwargs: [knowledge_hit],
            model_client=fake_model,
        )
        self.assertEqual(result["source"], "knowledge")
        self.assertIn("知识库内容", fake_model.call_args.kwargs["messages"][0]["content"])

    def test_prompt_contains_personality_configuration(self):
        messages = _build_prompt(self.avatar, [], "你好", [])
        self.assertIn("严谨度", messages[0]["content"])
        self.assertIn("不要编造政策", messages[0]["content"])

    def test_chat_rejects_avatar_owned_by_another_user(self):
        class Query:
            def __init__(self, value):
                self.value = value

            def filter(self, *_args, **_kwargs):
                return self

            def first(self):
                return self.value

        self_avatar = self.avatar

        class DB:
            avatar = self_avatar

            def query(self, model):
                return Query(
                    self.avatar if model is Avatar else SimpleNamespace(huihui_user_id="huihui-user-2")
                )

        db = DB()
        with self.assertRaises(HTTPException) as caught:
            _require_owned_avatar(db, self.avatar.id, "Bearer other-token")
        self.assertEqual(caught.exception.status_code, 403)


if __name__ == "__main__":
    unittest.main()