"""对 gemini_session 的行为验证：不联网，用假客户端覆盖关键自愈路径。"""

import asyncio
import io
import json
import os
import sys
import tempfile
import time
from pathlib import Path
from types import SimpleNamespace

sys.path.insert(0, os.path.dirname(os.path.dirname(os.path.abspath(__file__))))

import gemini_session as gs  # noqa: E402

PASS, FAIL = [], []


def check(name, cond, extra=""):
	(PASS if cond else FAIL).append(name)
	print(("[OK]   " if cond else "[FAIL] ") + name + (f"  {extra}" if extra and not cond else ""))


class FakeCookies:
	def __init__(self, values):
		self.jar = [SimpleNamespace(name=k, value=v) for k, v in values.items()]

	def get(self, name, default=None):
		for c in self.jar:
			if c.name == name:
				return c.value
		return default


class FakeClient:
	"""行为对齐 gemini_webapi.GeminiClient 的鸭子类型替身。"""

	def __init__(self, psid=None, psidts=None, **kwargs):
		self.psid = psid
		self.psidts = psidts
		self._running = False
		self.client = None
		self.auto_refresh = False
		self.refresh_task = None
		self.activity_task = None
		self.account_status = SimpleNamespace(name="AVAILABLE")
		self.cookies = FakeCookies({"__Secure-1PSID": psid, "__Secure-1PSIDTS": psidts})
		self.closed = False
		self.init_kwargs = {}

	async def init(self, **kwargs):
		self.init_kwargs = kwargs
		self._running = True
		self.client = object()
		self.auto_refresh = kwargs.get("auto_refresh", False)
		return None

	async def start_auto_refresh(self):
		while self._running:
			await asyncio.sleep(3600)

	async def start_activity_watchdog(self):
		while self._running:
			await asyncio.sleep(3600)

	async def close(self):
		self.closed = True
		self._running = False
		self.client = None


class FakeBackup:
	def __init__(self):
		self.enabled = True
		self.pushed = []

	async def restore(self, psid):
		return None

	async def push(self, psid, value, force=False):
		self.pushed.append((psid, value))
		return {"dataset_uploaded": ["x"]}


def make_manager(cache_dir, psid="PSID-AAA", psidts="ENV-TS"):
	manager = gs.GeminiSessionManager(
		credential_provider=lambda: (psid, psidts),
		cache_dir=cache_dir,
		validate=None,
		backup=None,
		refresh_interval=600,
		health_interval=30,
		rearm_cooldown=300,
	)
	return manager


async def main():
	tmp = tempfile.mkdtemp(prefix="gs-verify-")
	gs.GeminiClient = FakeClient

	# ---------------------------------------------------------------- 1. 基于 Cookie 初始化
	manager = make_manager(tmp)
	client = await manager.get_client()
	check("1a 用环境变量 Cookie 初始化成功", isinstance(client, FakeClient))
	check("1b auto_refresh 已开启", client.init_kwargs.get("auto_refresh") is True)
	check("1c auto_close 关闭（常驻服务）", client.init_kwargs.get("auto_close") is False)
	check("1d refresh_interval 透传", client.init_kwargs.get("refresh_interval") == 600)
	check("1e 凭据来源标记为 environment", manager.status()["credential_source"] == "environment")
	txt = Path(tmp) / ".cached_1psidts_PSID-AAA.txt"
	check("1f 初始化后把 1PSIDTS 落盘为文本缓存", txt.is_file() and txt.read_text() == "ENV-TS")

	# ---------------------------------------------------------------- 2. 观察到轮换 -> 落盘
	client.cookies = FakeCookies({"__Secure-1PSID": "PSID-AAA", "__Secure-1PSIDTS": "ROTATED-1"})
	manager._observe_rotation(client)
	check("2a 轮换后文本缓存被更新", txt.read_text() == "ROTATED-1")
	check("2b rotation_count 递增", manager.status()["rotation_count"] == 1)

	# ---------------------------------------------------------------- 3. 重复值不重复计数
	manager._observe_rotation(client)
	check("3a 值未变化时不重复计数", manager.status()["rotation_count"] == 1)

	# ---------------------------------------------------------------- 4. 后台轮换任务死后被重新拉起
	client.refresh_task = None
	manager._rearm_until = 0
	await manager._rearm_background_tasks(client)
	check("4a 轮换任务被重新拉起", client.refresh_task is not None and not client.refresh_task.done())
	check("4b rearm_count 递增", manager.status()["rearm_count"] == 1)
	check("4c rotation_task_alive 为真", manager.status()["rotation_task_alive"] is True)

	# 冷却期内不会重复拉起（避免账号状态异常时忙循环）
	first_task = client.refresh_task
	first_task.cancel()
	await asyncio.sleep(0)
	await manager._rearm_background_tasks(client)
	check("4d 冷却期内不重复拉起", client.refresh_task is first_task)

	# ---------------------------------------------------------------- 5. 活跃度看门狗同样被拉起
	manager._rearm_until = 0
	client.refresh_task = asyncio.create_task(asyncio.sleep(3600))
	client.activity_task = None
	await manager._rearm_background_tasks(client)
	check("5a 活跃度看门狗被拉起", client.activity_task is not None and not client.activity_task.done())

	# ---------------------------------------------------------------- 6. 失效检测
	check("6a 健康客户端无问题", gs.GeminiSessionManager.session_problem(client) == "")
	client.account_status = SimpleNamespace(name="UNAUTHENTICATED")
	check("6b 401 会话被判为失效", "UNAUTHENTICATED" in gs.GeminiSessionManager.session_problem(client))
	client.account_status = SimpleNamespace(name="AVAILABLE")
	client._running = False
	check("6c 未运行的客户端被判为失效", "not running" in gs.GeminiSessionManager.session_problem(client))

	# ---------------------------------------------------------------- 7. 失效后自动重建
	old = client
	rebuilt = await manager.get_client()
	check("7a 失效后按需重建", rebuilt is not old and isinstance(rebuilt, FakeClient))
	check("7b 旧客户端被关闭", old.closed is True)
	check("7c recycle_count 递增", manager.status()["recycle_count"] >= 1)

	# ---------------------------------------------------------------- 8. 监督循环：任务停止后自动恢复
	manager._rearm_until = 0
	rebuilt.refresh_task = None
	rebuilt.cookies = FakeCookies({"__Secure-1PSID": "PSID-AAA", "__Secure-1PSIDTS": "ROTATED-2"})
	await manager._supervise_once()
	check("8a 监督循环重新拉起轮换任务", rebuilt.refresh_task is not None and not rebuilt.refresh_task.done())
	check("8b 监督循环同步落盘最新值", txt.read_text() == "ROTATED-2")

	# ---------------------------------------------------------------- 9. 辅助用户状态误报不能关闭正在服务的客户端
	rebuilt.account_status = SimpleNamespace(name="UNAUTHENTICATED")
	before_status_probe = manager.client
	await manager._supervise_once()
	check("9a UNAUTHENTICATED 探针误报不会触发重建", manager.client is before_status_probe)
	check("9b 探针误报时传输层仍健康", gs.GeminiSessionManager.session_transport_problem(manager.client) == "")
	# 真正的传输层关闭仍然必须触发重建。
	rebuilt._running = False
	await manager._supervise_once()
	check("9c 传输层失效后自动重建", manager.client is not rebuilt and manager.client is not None)

	# ---------------------------------------------------------------- 10. 两套缓存取较新的一份
	tmp2 = tempfile.mkdtemp(prefix="gs-verify2-")
	store = gs.CookieStore(tmp2)
	json_path = Path(tmp2) / ".cached_cookies_PSID-BBB.json"
	json_path.write_text(json.dumps([{"name": "__Secure-1PSIDTS", "value": "FROM-JSON"}]))
	text_path = Path(tmp2) / ".cached_1psidts_PSID-BBB.txt"
	text_path.write_text("FROM-TEXT")
	os.utime(json_path, (time.time() + 10, time.time() + 10))  # json 更新
	value, source = store.read_1psidts("PSID-BBB")
	check("10a JSON 更新时以 JSON 为准", (value, source) == ("FROM-JSON", "json-cache"), f"{value}/{source}")
	os.utime(text_path, (time.time() + 20, time.time() + 20))  # text 更新
	value, source = store.read_1psidts("PSID-BBB")
	check("10b 文本更新时以文本为准", (value, source) == ("FROM-TEXT", "text-cache"), f"{value}/{source}")
	check("10c 非法 1PSID 不生成缓存路径", store.text_path("bad/../name") is None)

	# ---------------------------------------------------------------- 11. 缓存优先于环境变量
	tmp3 = tempfile.mkdtemp(prefix="gs-verify3-")
	store3 = gs.CookieStore(tmp3)
	store3.write_1psidts("PSID-CCC", "CACHED-TS")
	manager3 = make_manager(tmp3, psid="PSID-CCC", psidts="ENV-TS-STALE")
	client3 = await manager3.get_client()
	check("11a 优先使用缓存里的 1PSIDTS", client3.psidts == "CACHED-TS", client3.psidts)
	check("11b 来源标记为 cache", manager3.status()["credential_source"].startswith("cache"), manager3.status()["credential_source"])

	# ---------------------------------------------------------------- 12. 轮换后触发备份
	tmp4 = tempfile.mkdtemp(prefix="gs-verify4-")
	backup = FakeBackup()
	manager4 = gs.GeminiSessionManager(
		credential_provider=lambda: ("PSID-DDD", "ENV-TS"),
		cache_dir=tmp4,
		backup=backup,
		health_interval=30,
	)
	client4 = await manager4.get_client()
	client4.cookies = FakeCookies({"__Secure-1PSID": "PSID-DDD", "__Secure-1PSIDTS": "ROTATED-9"})
	manager4._observe_rotation(client4)
	await asyncio.sleep(0.2)
	check("12a 轮换后触发 HF 备份", backup.pushed == [("PSID-DDD", "ROTATED-9")], str(backup.pushed))

	# ---------------------------------------------------------------- 13. 生命周期 start/stop
	await manager4.start()
	check("13a supervisor_alive 为真", manager4.status()["supervisor_alive"] is True)
	await manager4.stop()
	check("13b stop 后 supervisor 停止", manager4.status()["supervisor_alive"] is False)
	check("13c stop 后客户端被关闭", manager4.client is None)

	# ---------------------------------------------------------------- 14. 无凭据时不炸
	manager5 = make_manager(tempfile.mkdtemp(prefix="gs-verify5-"), psid="", psidts="")
	try:
		await manager5.get_client()
		check("14a 缺凭据时抛错", False)
	except RuntimeError as e:
		check("14a 缺凭据时抛 RuntimeError", "SECURE_1PSID" in str(e), str(e))
	check("14b 状态里记录 last_error", "SECURE_1PSID" in manager5.status()["last_error"])

	print(f"\n通过 {len(PASS)} / {len(PASS) + len(FAIL)}")
	if FAIL:
		print("失败项：")
		for name in FAIL:
			print("  -", name)
	return 1 if FAIL else 0


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