"""Tests for sanguo_api.routes_strategy（策略代码 + 实例 路由组）。

需 fastapi/httpx → 在 NAS docker 容器或装齐后端的 venv 跑（Mac venv310 无 fastapi）。
"""
from fastapi.testclient import TestClient
from sanguo_api.app import create_app
from sanguo_api import instance_store


def _client(monkeypatch, tmp_path):
    monkeypatch.setattr(instance_store, "_STORE_PATH", str(tmp_path / "i.json"))
    app = create_app(db_path=str(tmp_path / "test.db"))
    return TestClient(app)


def test_files_endpoint_shape(monkeypatch, tmp_path):
    c = _client(monkeypatch, tmp_path)
    r = c.get("/api/v1/strategy/files")
    assert r.status_code == 200
    body = r.json()
    assert "files" in body and isinstance(body["files"], list)
    # 自研目录至少出现一个真实文件
    if body["files"]:
        dirs = {f["dir"] for f in body["files"]}
        assert any("sanguo_portfolio/strategies" in d or "sanguo_trader/strategy" in d for d in dirs)


def test_instance_crud_via_http(monkeypatch, tmp_path):
    c = _client(monkeypatch, tmp_path)
    r = c.post("/api/v1/strategy/instances", json={
        "code_file": "double_ma.py", "name": "HTTP实例", "type": "cta",
        "params": {"fast_window": 5}, "symbol_or_pool": "600519.SH",
        "interval": "d", "match_session": "next_open",
    })
    assert r.status_code == 200, r.text
    new_id = r.json()["id"]

    assert any(i["id"] == new_id for i in c.get("/api/v1/strategy/instances").json()["instances"])
    assert c.get(f"/api/v1/strategy/instances/{new_id}").json()["instance"]["name"] == "HTTP实例"

    # update
    upd = c.put(f"/api/v1/strategy/instances/{new_id}", json={"name": "改名", "params": {"fast_window": 20}})
    assert upd.status_code == 200
    assert c.get(f"/api/v1/strategy/instances/{new_id}").json()["instance"]["name"] == "改名"

    # delete
    assert c.delete(f"/api/v1/strategy/instances/{new_id}").status_code == 200
    assert c.get(f"/api/v1/strategy/instances/{new_id}").json()["instance"] is None


def test_file_write_rejects_syntax_error(monkeypatch, tmp_path):
    c = _client(monkeypatch, tmp_path)
    # 故意写语法错误的代码 → 400（py_compile 门禁）
    r = c.post("/api/v1/strategy/file/__probe_bad.py", json={"code": "def (:"})
    assert r.status_code == 400


def test_file_read_returns_code(monkeypatch, tmp_path):
    c = _client(monkeypatch, tmp_path)
    files = c.get("/api/v1/strategy/files").json()["files"]
    if not files:
        return
    name = files[0]["name"]
    r = c.get(f"/api/v1/strategy/file/{name}")
    assert r.status_code == 200, r.text
    body = r.json()
    assert isinstance(body["code"], str) and body["code"]  # 编辑器空白 bug 的回归测试
    assert body["name"] == name
    assert c.get("/api/v1/strategy/file/__no_such__.py").status_code == 404