"""单元测试：§24 v3 rotation-only compact 检测

测试 _get_recent_gateway_logs 和 _check_compact_in_progress_gateway。
用 tmp_path 构造 mock gateway 日志文件。
"""

import json
import os
from datetime import datetime, timedelta, timezone
from pathlib import Path

import pytest

from src.daemon.spawner import AgentSpawner


# ── helpers ──

_SESSION_KEY = "agent:pangtong-fujunshi:main"
_TODAY_STR = datetime.now().strftime("%Y-%m-%d")


def _make_rotation_event(session_key: str, ts: datetime) -> dict:
    """构造一条 rotation 日志事件"""
    return {
        "time": ts.isoformat(),
        "message": f"[compaction] rotated active transcript after compaction (sessionKey={session_key})",
    }


def _make_other_event(session_key: str, ts: datetime, msg: str = "something else") -> dict:
    """构造一条普通日志事件"""
    return {
        "time": ts.isoformat(),
        "message": f"{msg} (sessionKey={session_key})",
    }


def _write_log(tmp_path: Path, date_str: str, lines: list[dict]):
    """写 mock 日志文件"""
    log_file = tmp_path / f"openclaw-{date_str}.log"
    with open(log_file, "w") as f:
        for obj in lines:
            f.write(json.dumps(obj, ensure_ascii=False) + "\n")


@pytest.fixture(autouse=True)
def _set_log_dir(tmp_path, monkeypatch):
    """每个测试自动设置 OPENCLAW_LOG_DIR 到 tmp_path"""
    monkeypatch.setenv("OPENCLAW_LOG_DIR", str(tmp_path))


# ── 测试用例 ──


class TestCheckCompactInProgress:
    """§24 v3: _check_compact_in_progress_gateway 单元测试"""

    def test_rotation_within_window_returns_true(self, tmp_path):
        """TC1: rotation 事件在窗口内 → True"""
        now = datetime.now(timezone.utc)
        recent = now - timedelta(seconds=30)
        _write_log(tmp_path, _TODAY_STR, [_make_rotation_event(_SESSION_KEY, recent)])
        assert AgentSpawner._check_compact_in_progress_gateway(_SESSION_KEY) is True

    def test_rotation_outside_window_returns_false(self, tmp_path):
        """TC2: rotation 事件超出窗口 → False"""
        now = datetime.now(timezone.utc)
        old = now - timedelta(seconds=200)
        _write_log(tmp_path, _TODAY_STR, [_make_rotation_event(_SESSION_KEY, old)])
        assert AgentSpawner._check_compact_in_progress_gateway(_SESSION_KEY) is False

    def test_no_rotation_event_returns_false(self, tmp_path):
        """TC3: 无 rotation 事件 → False"""
        now = datetime.now(timezone.utc)
        _write_log(tmp_path, _TODAY_STR, [
            _make_other_event(_SESSION_KEY, now, "model.completed"),
        ])
        assert AgentSpawner._check_compact_in_progress_gateway(_SESSION_KEY) is False

    def test_log_file_not_exists_returns_false(self, tmp_path):
        """TC4: 日志文件不存在 → False"""
        # tmp_path 为空目录，无日志文件
        assert AgentSpawner._check_compact_in_progress_gateway(_SESSION_KEY) is False

    def test_session_key_mismatch_returns_false(self, tmp_path):
        """TC5: sessionKey 不匹配 → False"""
        now = datetime.now(timezone.utc)
        recent = now - timedelta(seconds=10)
        other_key = "agent:simayi-challenger:main"
        _write_log(tmp_path, _TODAY_STR, [_make_rotation_event(other_key, recent)])
        assert AgentSpawner._check_compact_in_progress_gateway(_SESSION_KEY) is False