# 审计锚定端点 API 黄金测试（§3.6）
# ============================================================
from __future__ import annotations

import pytest
from fastapi.testclient import TestClient


class _Store:
    def __init__(self):
        self.tenant_uuid = "platform"
        self.world_key = "default"
        self.data = {"auditEvents": [
            {"id": 1, "at": "2026-08-01T00:00:00+08:00", "ts": "2026-08-01T00:00:00+08:00",
             "actor": "tester", "category": "TEST", "action": "test.one",
             "target": {"type": "TEST"}, "power": "P0", "rationale": {},
             "prevHash": "GENESIS", "hash": "0" * 64},
        ]}

    def next_id(self, _kind: str) -> int:
        return 2

    def save(self) -> None:
        pass


@pytest.fixture
def client(monkeypatch, tmp_path):
    import server.gateway.app as gateway_module
    from tests.auth_provider import install_test_auth
    install_test_auth(monkeypatch, "tenant-anchor-api")
    store = _Store()
    monkeypatch.setattr(gateway_module, "get_store", lambda: store)
    c = TestClient(gateway_module.create_app())
    login = c.post("/api/auth/login", json={"username": "planner", "password": "test"})
    assert login.status_code == 200, login.text
    return c, store


def test_audit_get_reports_unanchored_then_anchor(client, tmp_path):
    c, store = client
    # 隔离账本目录：通过环境变量注入（在调用端点前设置）
    import os
    os.environ["APS_AUDIT_LEDGER_DIR"] = str(tmp_path / "ledger")
    try:
        g = c.get("/api/gov/audit")
        assert g.status_code == 200, g.text
        anchor = g.json()["anchor"]
        assert anchor["anchored"] is False
        assert anchor["reason"] == "not-anchored"

        a = c.post("/api/gov/audit/anchor")
        assert a.status_code == 200, a.text
        assert a.json()["anchored"] is True
        assert a.json()["status"]["ok"] is True

        g2 = c.get("/api/gov/audit")
        assert g2.json()["anchor"]["anchored"] is True
        assert g2.json()["anchor"]["ok"] is True
    finally:
        os.environ.pop("APS_AUDIT_LEDGER_DIR", None)