"""幂等键：客户端网络抖动重试时，不能建出两个工作区。"""

from __future__ import annotations

from httpx import AsyncClient

from .conftest import login


async def test_same_key_returns_first_result(client: AsyncClient) -> None:
    user = await login(client)
    headers = {**user["headers"], "Idempotency-Key": "k-1"}
    payload = {"name": "幂等工作区"}

    first = await client.post("/api/v1/workspaces", json=payload, headers=headers)
    second = await client.post("/api/v1/workspaces", json=payload, headers=headers)

    assert first.status_code == 200
    assert first.json()["data"]["id"] == second.json()["data"]["id"]
    assert second.headers.get("X-Idempotent-Replay") == "1"

    listed = await client.get("/api/v1/workspaces", headers=user["headers"])
    assert len(listed.json()["data"]["items"]) == 1


async def test_different_keys_create_different_workspaces(client: AsyncClient) -> None:
    user = await login(client)
    a = await client.post(
        "/api/v1/workspaces",
        json={"name": "一号"},
        headers={**user["headers"], "Idempotency-Key": "k-a"},
    )
    b = await client.post(
        "/api/v1/workspaces",
        json={"name": "二号"},
        headers={**user["headers"], "Idempotency-Key": "k-b"},
    )
    assert a.json()["data"]["id"] != b.json()["data"]["id"]


async def test_errors_are_not_cached(client: AsyncClient) -> None:
    user = await login(client)
    headers = {**user["headers"], "Idempotency-Key": "k-err"}
    bad = await client.post("/api/v1/workspaces", json={"name": ""}, headers=headers)
    assert bad.status_code == 422
    good = await client.post("/api/v1/workspaces", json={"name": "修好了"}, headers=headers)
    assert good.status_code == 200
    assert "X-Idempotent-Replay" not in good.headers


async def test_keys_are_scoped_per_user(client: AsyncClient) -> None:
    alice = await login(client)
    bob = await login(client)
    a = await client.post(
        "/api/v1/workspaces",
        json={"name": "Alice 的"},
        headers={**alice["headers"], "Idempotency-Key": "shared"},
    )
    b = await client.post(
        "/api/v1/workspaces",
        json={"name": "Bob 的"},
        headers={**bob["headers"], "Idempotency-Key": "shared"},
    )
    assert a.json()["data"]["id"] != b.json()["data"]["id"]