import pytest


@pytest.mark.anyio
async def test_delivered_sales_order_cannot_be_updated_or_deleted(client):
    payload = {
        "customer_id": 1,
        "delivery_date": None,
        "remark": "test",
        "items": [
            {
                "product_id": None,
                "product_sku": "MOLD-001",
                "product_name": "模具001",
                "product_category": "模具",
                "product_unit": "套",
                "quantity": 1,
                "unit_price": 1000.0,
                "remark": None,
            }
        ],
    }

    create_resp = await client.post("/api/sales-orders", json=payload)
    assert create_resp.status_code == 201
    order = create_resp.json()
    order_id = order["id"]

    status_resp = await client.patch(f"/api/sales-orders/{order_id}/status", json={"status": "delivered"})
    assert status_resp.status_code == 200

    update_resp = await client.put(f"/api/sales-orders/{order_id}", json=payload)
    assert update_resp.status_code == 400  # 已交付订单禁止修改（服务层守卫）

    delete_resp = await client.delete(f"/api/sales-orders/{order_id}")
    assert delete_resp.status_code == 400

    # delivered → paid 是允许的（业务上先交货再收款），但 delivered → manufacturing 不允许
    patch_resp = await client.patch(f"/api/sales-orders/{order_id}/status", json={"status": "manufacturing"})
    assert patch_resp.status_code == 400


@pytest.mark.anyio
async def test_non_delivered_sales_order_can_be_updated(client):
    payload = {
        "customer_id": 1,
        "delivery_date": None,
        "remark": "test",
        "items": [
            {
                "product_id": None,
                "product_sku": "MOLD-002",
                "product_name": "模具002",
                "product_category": "模具",
                "product_unit": "套",
                "quantity": 1,
                "unit_price": 2000.0,
                "remark": None,
            }
        ],
    }

    create_resp = await client.post("/api/sales-orders", json=payload)
    assert create_resp.status_code == 201
    order_id = create_resp.json()["id"]

    payload2 = {
        **payload,
        "remark": "changed",
        "items": [
            {
                **payload["items"][0],
                "quantity": 2,
            }
        ],
    }
    update_resp = await client.put(f"/api/sales-orders/{order_id}", json=payload2)
    assert update_resp.status_code == 200
    assert float(update_resp.json()["total_amount"]) == 4000.0