import uuid

from fastapi.testclient import TestClient

from app.main import app

client = TestClient(app)


def register_user() -> tuple[str, str]:
    email = f"buyer-{uuid.uuid4().hex}@example.com"
    password = "securepass1"
    response = client.post(
        "/api/auth/register",
        json={"email": email, "password": password, "full_name": "Buyer"},
    )
    assert response.status_code == 201
    token = response.json()["access_token"]
    return email, token


def auth_headers(token: str) -> dict[str, str]:
    return {"Authorization": f"Bearer {token}"}


def first_published_event() -> dict:
    response = client.get("/api/events", params={"upcoming": "false"})
    assert response.status_code == 200
    events = response.json()
    assert events, "Seed catalog required for order tests"
    return events[0]


def pick_tier(tiers: list[dict], quantity: int = 1) -> dict | None:
    return next(
        (t for t in tiers if t["status"] == "active" and t["remaining_quantity"] >= quantity),
        None,
    )


def create_pending_order():
    import pytest

    _, token = register_user()
    event = first_published_event()
    tiers = client.get(f"/api/events/{event['id']}/tickets").json()
    tier = pick_tier(tiers, 1)
    if not tier:
        pytest.skip("No ticket inventory available for test")
    response = client.post(
        "/api/orders",
        headers={**auth_headers(token), "Idempotency-Key": uuid.uuid4().hex},
        json={"event_id": event["id"], "items": [{"ticket_type_id": tier["id"], "quantity": 1}]},
    )
    assert response.status_code == 201
    return token, response.json()