"""人物模板配置加载与 Config→DB 同步测试。"""

from __future__ import annotations

import pytest

from app.core.config import settings
from app.db.session import AsyncSessionLocal
from app.repositories import characters as character_repo
from app.repositories.json_utils import loads_dict
from app.services.character_templates import get_default_template, load_character_templates


def test_load_templates_from_example():
    """.example.yaml 加载成功且含 default 模板。"""
    templates = load_character_templates()
    assert "default" in templates
    cfg = templates["default"]
    assert cfg.key == "default"
    assert cfg.name == "魂镜"
    assert cfg.display_name == "魂镜"
    assert cfg.language == "zh-CN"
    assert cfg.privacy_level == "normal"
    assert cfg.profile["background"] == "默认人物"
    assert cfg.profile["speaking_style"] == "温和、清晰、简洁"
    assert cfg.profile["temperament"] == "沉静而温暖"
    assert isinstance(cfg.profile["hobbies"], list)
    assert "哲学" in cfg.profile["hobbies"]
    assert isinstance(cfg.profile["values"], list)
    assert "真诚" in cfg.profile["values"]
    assert cfg.model_policy["memory_extraction_model_hint"] == "memory-extraction"
    assert cfg.model_policy["personality_analysis_model_hint"] == "personality-analysis"
    assert cfg.model_policy["embedding_model_hint"] == "embedding"


def test_get_default_template():
    """取 default 模板配置成功。"""
    cfg = get_default_template()
    assert cfg.key == "default"
    assert cfg.name == "魂镜"


@pytest.mark.asyncio
async def test_ensure_default_system_template_creates_from_config():
    """第一次调用 → 按 config 创建系统模板并写入 DB。"""
    from app.services.characters import ensure_default_system_template

    async with AsyncSessionLocal() as session:
        existing = await character_repo.get_system_template_by_key(session, "default")
        if existing:
            await session.delete(existing)
            await session.flush()

        template = await ensure_default_system_template(session)
        assert template is not None
        assert template.name == "魂镜"
        assert template.display_name == "魂镜"
        assert template.language == "zh-CN"
        assert template.privacy_level == "normal"
        assert template.template_key == "default"
        assert template.is_system_template is True
        assert template.owner_scope == "system"
        assert template.status == "active"

        profile = loads_dict(template.profile_json)
        assert profile.get("background") == "默认人物"
        assert profile.get("temperament") == "沉静而温暖"
        assert isinstance(profile.get("hobbies"), list)
        assert isinstance(profile.get("values"), list)
        assert isinstance(profile.get("birthday"), str)  # _ensure_default_birthday 兜底

        policy = loads_dict(template.model_policy_json)
        assert policy.get("default_chat_model_hint") == settings.default_model_hint
        assert policy.get("memory_extraction_model_hint") == "memory-extraction"
        assert policy.get("personality_analysis_model_hint") == "personality-analysis"
        assert policy.get("embedding_model_hint") == "embedding"

        await session.rollback()


@pytest.mark.asyncio
async def test_ensure_default_system_template_updates_changed_fields():
    """已有模板时 config 字段变化 → 覆盖更新。"""
    from app.services.characters import ensure_default_system_template

    async with AsyncSessionLocal() as session:
        template = await ensure_default_system_template(session)
        await session.flush()

        template_id = template.id
        template.name = "旧名覆盖测试"
        await session.flush()

        template2 = await ensure_default_system_template(session)
        assert template2.name == "魂镜"  # 被 config 覆盖回来
        assert template2.id == template_id  # 同一条记录

        await session.rollback()


@pytest.mark.asyncio
async def test_template_resync_no_spurious_updates():
    """config 与 DB 一致时同步不应触发无意义更新。"""
    from app.services.characters import ensure_default_system_template

    async with AsyncSessionLocal() as session:
        template = await ensure_default_system_template(session)
        await session.flush()

        template2 = await ensure_default_system_template(session)
        assert template2.id == template.id

        await session.rollback()


@pytest.mark.asyncio
async def test_create_character_uses_new_defaults():
    """create_character 使用 ``_MODEL_POLICY_CREATE_DEFAULTS``。"""
    from app.schemas.character import CreateCharacterRequest
    from app.services.characters import create_character

    async with AsyncSessionLocal() as session:
        character = await create_character(
            session,
            CreateCharacterRequest(name="测试人物"),
        )
        assert character is not None
        assert character.name == "测试人物"
        assert character.status == "wuji"

        # create_character 返回 CharacterResponse，model_policy 是 dict
        assert "default_chat_model_hint" in character.model_policy
        assert "memory_extraction_model_hint" in character.model_policy

        await session.rollback()