"""Tests for Chat memory integration — 记忆注入 + MemoryTool + 日志生成 (U4)."""

from pathlib import Path
from unittest.mock import AsyncMock, MagicMock, patch

import pytest

from agentkit.memory.profile import MemoryStore, MemorySnapshot
from agentkit.tools.memory_tool import MemoryTool


class TestChatMemoryInjection:
    """Chat 启动时记忆注入 system prompt 测试."""

    def test_memory_store_initializes_with_base_dir(self, tmp_path: Path):
        store = MemoryStore(base_dir=tmp_path)
        store.ensure_defaults()
        snapshot = store.load_all()
        prompt = store.build_system_prompt(snapshot, "Be helpful.")
        assert "<agent-identity>" in prompt
        assert "AgentKit" in prompt
        assert "Be helpful." in prompt

    def test_no_memory_files_returns_base_prompt(self, tmp_path: Path):
        store = MemoryStore(base_dir=tmp_path)
        snapshot = store.load_all()
        prompt = store.build_system_prompt(snapshot, "Be helpful.")
        assert prompt == "Be helpful."

    def test_default_soul_injected(self, tmp_path: Path):
        store = MemoryStore(base_dir=tmp_path)
        store.ensure_defaults()
        snapshot = store.load_all()
        prompt = store.build_system_prompt(snapshot)
        assert "<agent-identity>" in prompt
        assert "专业" in prompt or "AgentKit" in prompt


class TestChatMemoryToolAvailable:
    """MemoryTool 在对话中可用测试."""

    async def test_memory_tool_in_tools_list(self, tmp_path: Path):
        store = MemoryStore(base_dir=tmp_path)
        tool = MemoryTool(memory_store=store)
        assert tool.name == "memory"
        assert tool.input_schema is not None

    async def test_memory_tool_add_and_read(self, tmp_path: Path):
        store = MemoryStore(base_dir=tmp_path)
        tool = MemoryTool(memory_store=store)
        # Add
        result = await tool.execute(action="add", file="user", section="称呼", content="叫我老板")
        assert result["success"] is True
        # Read
        result = await tool.execute(action="read", file="user")
        assert "老板" in result["content"]


class TestChatMemoryPersistence:
    """记忆跨 /clear 会话持久化测试."""

    def test_memory_survives_session_clear(self, tmp_path: Path):
        """/clear 只清除会话历史，不清除记忆文件."""
        store = MemoryStore(base_dir=tmp_path)
        store.get_file("user").write("## 称呼\n叫我老板")

        # 模拟 /clear — 重新创建 MemoryStore
        store2 = MemoryStore(base_dir=tmp_path)
        content = store2.get_file("user").read()
        assert "老板" in content

    def test_memory_persists_across_store_instances(self, tmp_path: Path):
        store1 = MemoryStore(base_dir=tmp_path)
        store1.get_file("memory").write("## 项目\nAgentKit框架")

        store2 = MemoryStore(base_dir=tmp_path)
        content = store2.get_file("memory").read()
        assert "AgentKit" in content


class TestChatDailyLogGeneration:
    """会话结束时日志生成测试."""

    def test_daily_file_path_is_today(self, tmp_path: Path):
        from datetime import datetime, timezone
        store = MemoryStore(base_dir=tmp_path)
        daily = store.get_file("daily")
        today = datetime.now(timezone.utc).strftime("%Y-%m-%d")
        assert today in str(daily.path)

    def test_write_daily_log(self, tmp_path: Path):
        store = MemoryStore(base_dir=tmp_path)
        daily = store.get_file("daily")
        daily.write("讨论了AgentKit记忆系统架构")
        content = daily.read()
        assert "记忆系统" in content

    def test_daily_log_loads_in_snapshot(self, tmp_path: Path):
        store = MemoryStore(base_dir=tmp_path)
        store.get_file("daily").write("今天完成了记忆系统开发")
        snapshot = store.load_all()
        assert "记忆系统" in snapshot.daily