"""AI integration tests."""

import asyncio
import json
import os
from pathlib import Path
import shutil
import stat
import sys
import tempfile
import time
import zipfile

from dotenv import load_dotenv

project_root = Path(__file__).parent.parent
sys.path.insert(0, str(project_root))

from src.ai import AIClient
from src.ai.base import ModelConfig, ModelProvider
from src.ai.memory import MemorySystem
from src.ai.skills import SkillsManager, create_skill_template
from src.handlers.message_handler_ai import MessageHandler

load_dotenv(project_root / ".env")


TEST_DATA_DIR = Path("data/ai_test")


def _safe_rmtree(path: Path):
    if not path.exists():
        return

    def _onerror(func, target, exc_info):
        try:
            os.chmod(target, stat.S_IWRITE)
            func(target)
        except Exception:
            pass

    for _ in range(3):
        try:
            shutil.rmtree(path, onerror=_onerror)
            return
        except PermissionError:
            time.sleep(0.2)


def _safe_unlink(path: Path):
    if not path.exists():
        return

    for _ in range(3):
        try:
            path.unlink()
            return
        except PermissionError:
            time.sleep(0.2)


def _read_env(name: str, default=None):
    value = os.getenv(name)
    if value is None:
        return default

    value = value.strip()
    if not value or value.startswith("#"):
        return default

    return value


def get_ai_config() -> ModelConfig:
    provider_map = {
        "openai": ModelProvider.OPENAI,
        "anthropic": ModelProvider.ANTHROPIC,
        "deepseek": ModelProvider.DEEPSEEK,
        "qwen": ModelProvider.QWEN,
        "siliconflow": ModelProvider.OPENAI,
    }

    provider_str = (_read_env("AI_PROVIDER", "openai") or "openai").lower()
    provider = provider_map.get(provider_str, ModelProvider.OPENAI)

    return ModelConfig(
        provider=provider,
        model_name=_read_env("AI_MODEL", "gpt-3.5-turbo") or "gpt-3.5-turbo",
        api_key=_read_env("AI_API_KEY", "") or "",
        api_base=_read_env("AI_API_BASE"),
        temperature=0.7,
    )


def get_embed_config() -> ModelConfig:
    provider_map = {
        "openai": ModelProvider.OPENAI,
        "anthropic": ModelProvider.ANTHROPIC,
        "deepseek": ModelProvider.DEEPSEEK,
        "qwen": ModelProvider.QWEN,
        "siliconflow": ModelProvider.OPENAI,
    }

    provider_str = (_read_env("AI_EMBED_PROVIDER", "openai") or "openai").lower()
    provider = provider_map.get(provider_str, ModelProvider.OPENAI)

    api_key = _read_env("AI_EMBED_API_KEY") or _read_env("AI_API_KEY", "") or ""
    api_base = _read_env("AI_EMBED_API_BASE") or _read_env("AI_API_BASE")

    return ModelConfig(
        provider=provider,
        model_name=_read_env("AI_EMBED_MODEL", "text-embedding-3-small")
        or "text-embedding-3-small",
        api_key=api_key,
        api_base=api_base,
        temperature=0.0,
    )


class FakeMessage:
    def __init__(self, content: str):
        from types import SimpleNamespace

        self.content = content
        self.author = SimpleNamespace(id="test_user")
        self.replies = []

    async def reply(self, content: str):
        self.replies.append(content)


def make_handler() -> MessageHandler:
    from types import SimpleNamespace

    fake_bot = SimpleNamespace(robot=SimpleNamespace(id="test_bot"))
    handler = MessageHandler(fake_bot)
    handler.ai_client = AIClient(get_ai_config(), data_dir=TEST_DATA_DIR)
    handler.skills_manager = SkillsManager(Path("skills"))
    handler.model_profiles_path = TEST_DATA_DIR / "models_test.json"
    TEST_DATA_DIR.mkdir(parents=True, exist_ok=True)
    _safe_unlink(handler.model_profiles_path)
    handler._ai_initialized = True
    return handler


async def _test_basic_chat():
    print("=== test_basic_chat ===")

    config = get_ai_config()
    if not config.api_key:
        print("skip: AI_API_KEY not configured")
        return

    embed_config = get_embed_config()
    client = AIClient(config, embed_config=embed_config, data_dir=TEST_DATA_DIR)
    response = await client.chat(
        user_id="test_user",
        user_message="你好，请介绍一下你自己",
        use_memory=False,
        use_tools=False,
    )
    assert response
    print("ok: chat response length", len(response))


async def _test_memory():
    print("=== test_memory ===")

    config = get_ai_config()
    if not config.api_key:
        print("skip: AI_API_KEY not configured")
        return

    client = AIClient(config, embed_config=get_embed_config(), data_dir=TEST_DATA_DIR)
    await client.chat(user_id="test_user", user_message="鎴戝彨寮犱笁", use_memory=True)
    await client.chat(user_id="test_user", user_message="what is my name", use_memory=True)

    short_term, long_term = await client.memory.get_context("test_user")
    assert len(short_term) >= 2
    # 重要性改为模型评估后，是否入长期记忆取决于模型打分，不再固定断言数量。
    assert isinstance(long_term, list)
    print("ok: memory short/long", len(short_term), len(long_term))


async def _test_personality():
    print("=== test_personality ===")

    client = AIClient(get_ai_config(), data_dir=TEST_DATA_DIR)
    names = client.list_personalities()
    assert names
    assert client.set_personality(names[0])

    key = "roleplay_test"
    added = client.personality.add_personality(
        key,
        client.personality.get_personality("default"),
    )
    assert added
    assert key in client.list_personalities()
    assert client.personality.remove_personality(key)
    assert key not in client.list_personalities()

    print("ok: personality add/remove")


async def _test_skills():
    print("=== test_skills ===")

    manager = SkillsManager(Path("skills"))
    assert await manager.load_skill("weather")

    tools = manager.get_all_tools()
    assert "weather.get_weather" in tools
    weather = await tools["weather.get_weather"](city="鍖椾含")
    assert weather

    assert await manager.load_skill("skills_creator")
    tools = manager.get_all_tools()
    assert "skills_creator.create_skill" in tools

    await manager.unload_skill("weather")
    await manager.unload_skill("skills_creator")
    print("ok: skills load/unload")


async def _test_skill_commands():
    print("=== test_skill_commands ===")

    handler = make_handler()
    skill_key = f"cmd_zip_skill_{int(time.time() * 1000)}"

    # Prepare a zip package source for install testing
    tmp_root = TEST_DATA_DIR / "tmp_skill_pkg"
    if tmp_root.exists():
        _safe_rmtree(tmp_root)
    tmp_root.mkdir(parents=True, exist_ok=True)

    create_skill_template(skill_key, tmp_root, description="zip skill", author="test")

    zip_path = TEST_DATA_DIR / f"{skill_key}.zip"

    with zipfile.ZipFile(zip_path, "w", zipfile.ZIP_DEFLATED) as zf:
        for file in (tmp_root / skill_key).rglob("*"):
            if file.is_file():
                zf.write(file, file.relative_to(tmp_root))

    install_msg = FakeMessage(f"/skills install {zip_path}")
    await handler._handle_command(install_msg, install_msg.content)
    assert install_msg.replies, "install command no reply"

    list_msg = FakeMessage("/skills")
    await handler._handle_command(list_msg, list_msg.content)
    assert list_msg.replies, "list command no reply"

    reload_msg = FakeMessage(f"/skills reload {skill_key}")
    await handler._handle_command(reload_msg, reload_msg.content)
    assert reload_msg.replies, "reload command no reply"

    uninstall_msg = FakeMessage(f"/skills uninstall {skill_key}")
    await handler._handle_command(uninstall_msg, uninstall_msg.content)
    assert uninstall_msg.replies, "uninstall command no reply"

    if tmp_root.exists():
        _safe_rmtree(tmp_root)
    _safe_unlink(zip_path)

    print("ok: skills install/reload/uninstall command")


async def _test_personality_commands():
    print("=== test_personality_commands ===")

    handler = make_handler()
    intro = "You are a hot-blooded anime hero. Speak directly and stay in-character."

    add_cmd = (
        "/personality add roleplay_hero "
        f"{intro}"
    )
    add_msg = FakeMessage(add_cmd)
    await handler._handle_command(add_msg, add_msg.content)
    assert add_msg.replies

    set_msg = FakeMessage("/personality set roleplay_hero")
    await handler._handle_command(set_msg, set_msg.content)
    assert set_msg.replies
    assert intro in handler.ai_client.personality.get_system_prompt()

    remove_msg = FakeMessage("/personality remove roleplay_hero")
    await handler._handle_command(remove_msg, remove_msg.content)
    assert remove_msg.replies

    assert "roleplay_hero" not in handler.ai_client.list_personalities()
    print("ok: personality add/set/remove command")


async def _test_model_commands():
    print("=== test_model_commands ===")

    handler = make_handler()

    list_msg = FakeMessage("/models")
    await handler._handle_command(list_msg, list_msg.content)
    assert list_msg.replies
    assert "default" in list_msg.replies[-1].lower()

    add_msg = FakeMessage("/models add roleplay_llm openai gpt-4o-mini")
    await handler._handle_command(add_msg, add_msg.content)
    assert add_msg.replies
    assert handler.active_model_key == "roleplay_llm"
    assert "roleplay_llm" in handler.model_profiles

    switch_msg = FakeMessage("/models switch default")
    await handler._handle_command(switch_msg, switch_msg.content)
    assert switch_msg.replies
    assert handler.active_model_key == "default"

    current_msg = FakeMessage("/models current")
    await handler._handle_command(current_msg, current_msg.content)
    assert current_msg.replies

    old_config = handler.ai_client.config
    shortcut_model = "Qwen/Qwen2.5-7B-Instruct"
    shortcut_key = handler._normalize_model_key(shortcut_model)
    shortcut_add_msg = FakeMessage(f"/models add {shortcut_model}")
    await handler._handle_command(shortcut_add_msg, shortcut_add_msg.content)
    assert shortcut_add_msg.replies
    assert handler.active_model_key == shortcut_key
    assert handler.ai_client.config.model_name == shortcut_model
    assert handler.ai_client.config.provider == old_config.provider
    assert handler.ai_client.config.api_base == old_config.api_base
    assert handler.ai_client.config.api_key == old_config.api_key

    shortcut_remove_msg = FakeMessage(f"/models remove {shortcut_key}")
    await handler._handle_command(shortcut_remove_msg, shortcut_remove_msg.content)
    assert shortcut_remove_msg.replies
    assert shortcut_key not in handler.model_profiles

    remove_msg = FakeMessage("/models remove roleplay_llm")
    await handler._handle_command(remove_msg, remove_msg.content)
    assert remove_msg.replies
    assert "roleplay_llm" not in handler.model_profiles

    _safe_unlink(handler.model_profiles_path)
    print("ok: model add/switch/remove command")


async def _test_memory_commands():
    print("=== test_memory_commands ===")

    handler = make_handler()
    user_id = "test_user"

    await handler.ai_client.clear_all_memory(user_id)

    add_msg = FakeMessage("/memory add this is a long-term memory test")
    await handler._handle_command(add_msg, add_msg.content)
    assert add_msg.replies
    assert "已新增长期记忆" in add_msg.replies[-1]

    memory_id = add_msg.replies[-1].split(": ", 1)[1].split(" ", 1)[0]
    assert memory_id

    list_msg = FakeMessage("/memory list 5")
    await handler._handle_command(list_msg, list_msg.content)
    assert list_msg.replies
    assert memory_id in list_msg.replies[-1]

    get_msg = FakeMessage(f"/memory get {memory_id}")
    await handler._handle_command(get_msg, get_msg.content)
    assert get_msg.replies
    assert memory_id in get_msg.replies[-1]

    search_msg = FakeMessage("/memory search 长期记忆")
    await handler._handle_command(search_msg, search_msg.content)
    assert search_msg.replies
    assert memory_id in search_msg.replies[-1]

    update_msg = FakeMessage(f"/memory update {memory_id} 这是更新后的长期记忆")
    await handler._handle_command(update_msg, update_msg.content)
    assert update_msg.replies
    assert "已更新长期记忆" in update_msg.replies[-1]

    # Build short-term memory then clear only short-term.
    await handler.ai_client.memory.add_message(
        user_id=user_id,
        role="user",
        content="short memory for clear short test",
    )
    assert handler.ai_client.memory.short_term.get(user_id)

    clear_short_msg = FakeMessage("/clear short")
    await handler._handle_command(clear_short_msg, clear_short_msg.content)
    assert clear_short_msg.replies
    assert not handler.ai_client.memory.short_term.get(user_id)

    # Long-term memory should still exist after clearing short-term only.
    still_exists = await handler.ai_client.get_long_term_memory(user_id, memory_id)
    assert still_exists is not None

    delete_msg = FakeMessage(f"/memory delete {memory_id}")
    await handler._handle_command(delete_msg, delete_msg.content)
    assert delete_msg.replies
    assert "已删除长期记忆" in delete_msg.replies[-1]

    removed = await handler.ai_client.get_long_term_memory(user_id, memory_id)
    assert removed is None

    print("ok: memory command CRUD + clear short")


async def _test_plain_text_output():
    print("=== test_plain_text_output ===")

    handler = make_handler()
    md_text = "# 标题\n**加粗** 和 `代码`\n- 列表\n[链接](https://example.com)"
    plain = handler._plain_text(md_text)

    assert "#" not in plain
    assert "**" not in plain
    assert "`" not in plain
    assert "[" not in plain
    assert "](" not in plain
    print("ok: markdown stripped")


async def _test_skills_creator_autoload():
    print("=== test_skills_creator_autoload ===")

    from types import SimpleNamespace

    fake_bot = SimpleNamespace(robot=SimpleNamespace(id="test_bot"))
    handler = MessageHandler(fake_bot)
    handler.model_profiles_path = TEST_DATA_DIR / "models_autoload_test.json"
    _safe_unlink(handler.model_profiles_path)
    await handler._init_ai()

    assert handler.skills_manager is not None
    assert "skills_creator" in handler.skills_manager.list_skills()

    tool_names = [tool.name for tool in handler.ai_client.tools.list()]
    assert "skills_creator.create_skill" in tool_names
    print("ok: skills_creator autoloaded")


async def _test_mcp():
    print("=== test_mcp ===")

    from src.ai.mcp import MCPManager
    from src.ai.mcp.servers import FileSystemMCPServer

    manager = MCPManager(Path("config/mcp.json"))
    fs_server = FileSystemMCPServer(root_path=Path("data"))
    await manager.register_server(fs_server)

    tools = await manager.get_all_tools_for_ai()
    assert len(tools) >= 1
    print("ok: mcp tools", len(tools))


async def _test_long_task():
    print("=== test_long_task ===")

    client = AIClient(get_ai_config(), data_dir=TEST_DATA_DIR)

    async def step1():
        await asyncio.sleep(0.1)
        return "step1"

    async def step2():
        await asyncio.sleep(0.1)
        return "step2"

    client.task_manager.register_action("step1", step1)
    client.task_manager.register_action("step2", step2)

    task_id = await client.create_long_task(
        user_id="test_user",
        title="test",
        description="test task",
        steps=[
            {"description": "s1", "action": "step1", "params": {}},
            {"description": "s2", "action": "step2", "params": {}},
        ],
    )

    await client.start_task(task_id)
    await asyncio.sleep(0.5)

    status = client.get_task_status(task_id)
    assert status is not None
    assert status["status"] in {"completed", "running"}
    print("ok: long task", status["status"])


async def _test_memory_importance_evaluator():
    print("=== test_memory_importance_evaluator ===")

    called = {"value": False}

    async def fake_importance_eval(content, metadata):
        called["value"] = True
        assert "用户:" in content
        assert "助手:" in content
        return 0.91

    store_path = TEST_DATA_DIR / "importance_test.json"
    _safe_unlink(store_path)

    memory = MemorySystem(
        storage_path=store_path,
        importance_evaluator=fake_importance_eval,
        use_vector_db=False,
    )

    stored = await memory.add_qa_pair(
        user_id="u1",
        question="请记住我的昵称是小明",
        answer="好的，我记住了你的昵称是小明",
        metadata={"source": "test"},
    )
    assert called["value"]
    assert stored is not None
    assert "用户:" in stored.content
    assert "助手:" in stored.content
    assert "小明" in stored.content

    long_term = await memory.list_long_term("u1")
    assert len(long_term) == 1

    # add_message 仅写入短期记忆，不触发长期记忆评分写入。
    await memory.add_message(user_id="u1", role="user", content="单条短期消息")
    long_term_after_single = await memory.list_long_term("u1")
    assert len(long_term_after_single) == 1

    memory_without_eval = MemorySystem(
        storage_path=TEST_DATA_DIR / "importance_fallback_test.json",
        use_vector_db=False,
    )
    fallback_score = await memory_without_eval._evaluate_importance("任意内容", None)
    assert fallback_score == 0.5

    await memory.close()
    await memory_without_eval.close()
    _safe_unlink(store_path)
    _safe_unlink(TEST_DATA_DIR / "importance_fallback_test.json")
    print("ok: memory importance evaluator")


def test_basic_chat():
    asyncio.run(_test_basic_chat())


def test_memory():
    asyncio.run(_test_memory())


def test_personality():
    asyncio.run(_test_personality())


def test_skills():
    asyncio.run(_test_skills())


def test_skill_commands():
    asyncio.run(_test_skill_commands())


def test_personality_commands():
    asyncio.run(_test_personality_commands())


def test_model_commands():
    asyncio.run(_test_model_commands())


def test_memory_commands():
    asyncio.run(_test_memory_commands())


def test_plain_text_output():
    asyncio.run(_test_plain_text_output())


def test_skills_creator_autoload():
    asyncio.run(_test_skills_creator_autoload())


def test_mcp():
    asyncio.run(_test_mcp())


def test_long_task():
    asyncio.run(_test_long_task())


def test_memory_importance_evaluator():
    asyncio.run(_test_memory_importance_evaluator())


async def main():
    print("寮€濮?AI 鍔熻兘娴嬭瘯")

    await _test_personality()
    await _test_skills()
    await _test_skill_commands()
    await _test_personality_commands()
    await _test_model_commands()
    await _test_memory_commands()
    await _test_plain_text_output()
    await _test_skills_creator_autoload()
    await _test_mcp()
    await _test_long_task()
    await _test_memory_importance_evaluator()

    config = get_ai_config()
    if config.api_key:
        await _test_basic_chat()
        await _test_memory()
    else:
        print("跳过需要 API Key 的对话/记忆测试")

    print("娴嬭瘯瀹屾垚")


if __name__ == "__main__":
    asyncio.run(main())