from fastapi.testclient import TestClient


def test_register_location_success(client: TestClient):
    """正常上架 — 应返回 200"""
    resp = client.post(
        "/CargoTrace/location",
        json={"zongpai_no": "26B999", "location_code": "A01-02-03"},
    )
    assert resp.status_code == 200
    data = resp.json()
    assert data["zongpai_no"] == "26B999"
    assert data["location_code"] == "A01-02-03"


def test_register_location_duplicate(client: TestClient):
    """重复上架 — 应返回 409，包含统一错误格式"""
    client.post(
        "/CargoTrace/location",
        json={"zongpai_no": "26C999", "location_code": "A01-02-03"},
    )
    resp = client.post(
        "/CargoTrace/location",
        json={"zongpai_no": "26C999", "location_code": "A02-01-01"},
    )
    assert resp.status_code == 409
    data = resp.json()
    assert data["error_code"] == "DUPLICATE_LOCATION"
    assert data["location_code"] == "A01-02-03"
    assert "registered_at" in data


def test_register_location_invalid_zongpai(client: TestClient):
    """无效总排号 — 应返回 400"""
    resp = client.post(
        "/CargoTrace/location",
        json={"zongpai_no": "INVALID", "location_code": "A01-02-03"},
    )
    assert resp.status_code == 400
    assert resp.json()["error_code"] == "INVALID_ZONGPAI"


def test_register_location_invalid_location(client: TestClient):
    """无效货位号 — 应返回 400"""
    resp = client.post(
        "/CargoTrace/location",
        json={"zongpai_no": "26T999", "location_code": "bad-location"},
    )
    assert resp.status_code == 400
    assert resp.json()["error_code"] == "INVALID_LOCATION"


def test_register_location_trans_location(client: TestClient):
    """转运特殊货位 — 应返回 200"""
    resp = client.post(
        "/CargoTrace/location",
        json={"zongpai_no": "26BW0999", "location_code": "TRANS-01"},
    )
    assert resp.status_code == 200
    assert resp.json()["location_code"] == "TRANS-01"