# ============================================================
# 测试默认启用演示种子，并把所有持久化状态隔离到进程级临时目录
# ============================================================
from __future__ import annotations

import os
from datetime import datetime
import tempfile
from pathlib import Path

import pytest

# conftest 在测试模块收集前导入：这里必须立即覆盖持久化环境，避免模块级
# 单例在 session fixture 执行前连接仓库内 server/data 或现场数据库。
_SESSION_TEMP = tempfile.TemporaryDirectory(prefix="aps-agent-tests-")
_SESSION_ROOT = Path(_SESSION_TEMP.name).resolve()
_SESSION_HOME = _SESSION_ROOT / "home"
_SESSION_DATA = _SESSION_HOME / "data"

_PERSISTENCE_ENV = {
    "APS_HOME": _SESSION_HOME,
    "APS_DATA_DIR": _SESSION_DATA,
    "APS_DB_PATH": _SESSION_DATA / "master.db",
    "APS_WORLD_PATH": _SESSION_DATA / "world.json",
    "APS_PROJECTS_PATH": _SESSION_HOME / "sessions" / "workspace.json",
    "APS_KNOWLEDGE_PATH": _SESSION_DATA / "knowledge.json",
    "APS_CHECKPOINT_PATH": _SESSION_DATA / "checkpoints.json",
    "APS_PREFERENCE_PATH": _SESSION_DATA / "preferences.json",
    "APS_EMBEDDINGS_PATH": _SESSION_DATA / "embeddings.json",
    "APS_APPROVAL_PATH": _SESSION_DATA / "approvals.json",
    "APS_AUDIT_LEDGER_DIR": _SESSION_DATA / "audit-ledger",
    "APS_AUDIT_MIRROR_DIR": _SESSION_DATA / "audit-mirror",
    "APS_AUTOMATION_STATE_PATH": _SESSION_DATA / "automation.json",
    "APS_MCP_BUS_PATH": _SESSION_DATA / "mcp-bus.json",
    "APS_BRANCH_PATH": _SESSION_DATA / "branches.json",
    "APS_BRANCH_DIR": _SESSION_DATA / "branches",
    "APS_GOLDEN_CACHE": _SESSION_DATA / "golden-tests.json",
}
for _name, _path in _PERSISTENCE_ENV.items():
    os.environ[_name] = str(_path)

# 任何外部数据库 URL 都会绕过 APS_DB_PATH；测试默认必须 fail-closed。
os.environ.pop("APS_DATABASE_URL", None)
os.environ["APS_APPROVAL_BACKEND"] = "file"
# Test authentication must not inherit a delayed dotenv load from the developer machine.
os.environ["APS_AUTH_ENABLED"] = "1"
os.environ.setdefault("APS_MODE", "web")
# 黄金测试依赖 build_demo_world 的自洽数据；生产默认 APS_SEED_DEMO 关闭。
os.environ.setdefault("APS_SEED_DEMO", "1")

# 本轮系统验收日期固定为 2026-08-02；黄金测试不得因宿主机跨午夜漂移。
import server.timeutil as _timeutil


def _fixed_today0() -> datetime:
    return datetime(2026, 8, 2)


_timeutil.today0 = _fixed_today0


def _reset_runtime_caches() -> None:
    """丢弃所有依赖持久化路径的进程级缓存，防止测试间串目录。"""
    from server.db.database import reset_engine

    reset_engine()

    from server.state import store as world_store

    with world_store._stores_lock:
        world_store._stores.clear()

    from server.state.branches import reset_branch_stores

    reset_branch_stores()

    from server.agent_core.plan_runtime import reset_plan_stores

    reset_plan_stores()

    from server.agent_core.mcp_bus import reset_mcp_bus

    reset_mcp_bus()

    from server.knowledge import assets, embedding, preferences

    with assets._stores_lock:
        assets._stores.clear()
    with preferences._stores_lock:
        preferences._stores.clear()
    with embedding._stores_lock:
        embedding._stores.clear()
        embedding._provider = None


@pytest.fixture(scope="session", autouse=True)
def _isolated_persistence_session():
    """保证整个 pytest session 只在临时 APS_HOME 下持久化。"""
    for path in _PERSISTENCE_ENV.values():
        assert Path(path).resolve().is_relative_to(_SESSION_ROOT)
    assert not os.environ.get("APS_DATABASE_URL")

    _reset_runtime_caches()
    yield _SESSION_ROOT
    _reset_runtime_caches()
    _SESSION_TEMP.cleanup()


@pytest.fixture(autouse=True)
def _isolated_approval_store(tmp_path):
    """每条用例隔离审批状态，并在前后清空所有路径相关缓存。"""
    from server.agent_core import harness

    _reset_runtime_caches()
    store = harness.configure_approval_store(str(tmp_path / "approvals.json"))
    yield
    store.clear()
    _reset_runtime_caches()