"""Integration tests for Creator Payouts: requests, list, admin review, and balance accounting.

docs/planning/economy.md US-5 (tasks f5b4684f2e65, b52008923e93).
"""

import pytest
from fastapi.testclient import TestClient
from sqlalchemy.ext.asyncio import async_sessionmaker, create_async_engine
from sqlalchemy.pool import NullPool

from app.config import settings
from app.main import app
from app.models.marketplace import CreatorBalance
from app.models.user import User


def _register(client: TestClient, username: str) -> tuple[int, dict[str, str]]:
    resp = client.post(
        "/api/auth/register",
        json={
            "username": username,
            "email": f"{username}@example.com",
            "password": "secret123",
            "date_of_birth": "1990-01-01",
        },
    )
    assert resp.status_code == 201, resp.text
    token = resp.json()["access_token"]
    headers = {"Authorization": f"Bearer {token}"}
    me = client.get("/api/users/me", headers=headers)
    assert me.status_code == 200, me.text
    return me.json()["id"], headers


async def _fund_creator_balance(user_id: int, available_amount: int):
    engine = create_async_engine(settings.DATABASE_URL, poolclass=NullPool)
    session_factory = async_sessionmaker(engine, expire_on_commit=False)
    async with session_factory() as session:
        cb = CreatorBalance(
            user_id=user_id,
            available=available_amount,
            pending=0,
            lifetime_earned=available_amount,
        )
        session.add(cb)
        await session.commit()
    await engine.dispose()


async def _make_admin(user_id: int):
    engine = create_async_engine(settings.DATABASE_URL, poolclass=NullPool)
    session_factory = async_sessionmaker(engine, expire_on_commit=False)
    async with session_factory() as session:
        user = await session.get(User, user_id)
        assert user is not None
        user.is_admin = True
        await session.commit()
    await engine.dispose()


@pytest.mark.asyncio
async def test_payout_request_and_validation():
    client = TestClient(app)
    uid, headers = _register(client, "payout_creator_1")
    _, other_headers = _register(client, "payout_other_user")

    # Min threshold is 100 CR
    resp = client.post(
        "/api/payouts",
        headers=headers,
        json={"amount": 50},
    )
    assert resp.status_code == 422, resp.text

    # Without balance, payout of 200 CR fails
    resp = client.post(
        "/api/payouts",
        headers=headers,
        json={"amount": 200},
    )
    assert resp.status_code == 400
    assert "Insufficient available balance" in resp.text

    # Seed 500 CR available creator balance
    await _fund_creator_balance(uid, 500)

    # Valid payout request of 200 CR
    resp = client.post(
        "/api/payouts",
        headers=headers,
        json={"amount": 200, "external_ref": "creator@paypal.com"},
    )
    assert resp.status_code == 201, resp.text
    payout_data = resp.json()
    assert payout_data["amount"] == 200
    assert payout_data["status"] == "pending"
    assert payout_data["external_ref"] == "creator@paypal.com"
    payout_id = payout_data["id"]

    # Check creator balance: 500 - 200 = 300 available, 200 pending
    cb_resp = client.get("/api/marketplace/creator/balance", headers=headers)
    assert cb_resp.status_code == 200
    cb = cb_resp.json()
    assert cb["available"] == 300
    assert cb["pending"] == 200

    # List payouts: creator sees own request
    list_resp = client.get("/api/payouts", headers=headers)
    assert list_resp.status_code == 200
    my_payouts = list_resp.json()
    assert len(my_payouts) == 1
    assert my_payouts[0]["id"] == payout_id

    # Other user sees empty list
    other_list = client.get("/api/payouts", headers=other_headers)
    assert other_list.status_code == 200
    assert len(other_list.json()) == 0

    # Other user cannot view detail -> 403
    det_resp = client.get(f"/api/payouts/{payout_id}", headers=other_headers)
    assert det_resp.status_code == 403


@pytest.mark.asyncio
async def test_payout_admin_approve_and_reject():
    client = TestClient(app)
    admin_id, admin_headers = _register(client, "admin_payout_reviewer")

    creator_id, creator_headers = _register(client, "payout_creator_2")
    await _fund_creator_balance(creator_id, 1000)

    # 1. Request payout of 300 CR
    p1_resp = client.post(
        "/api/payouts",
        headers=creator_headers,
        json={"amount": 300, "external_ref": "iban_123"},
    )
    assert p1_resp.status_code == 201
    p1_id = p1_resp.json()["id"]

    # 2. Non-admin cannot approve -> 403
    non_admin_appr = client.post(f"/api/payouts/{p1_id}/approve", headers=creator_headers)
    assert non_admin_appr.status_code == 403

    # 3. Admin approves payout 1
    appr_resp = client.post(f"/api/payouts/{p1_id}/approve", headers=admin_headers)
    assert appr_resp.status_code == 200, appr_resp.text
    p1_data = appr_resp.json()
    assert p1_data["status"] == "paid"
    assert p1_data["reviewed_by"] == admin_id
    assert p1_data["provider_ref"] is not None

    # Balance check: available was 700, pending was 300 -> now pending = 0
    cb_resp = client.get("/api/marketplace/creator/balance", headers=creator_headers)
    assert cb_resp.json()["available"] == 700
    assert cb_resp.json()["pending"] == 0

    # 4. Request payout 2 of 200 CR
    p2_resp = client.post(
        "/api/payouts",
        headers=creator_headers,
        json={"amount": 200},
    )
    assert p2_resp.status_code == 201
    p2_id = p2_resp.json()["id"]

    # available was 700 - 200 = 500, pending = 200
    cb_resp = client.get("/api/marketplace/creator/balance", headers=creator_headers)
    assert cb_resp.json()["available"] == 500
    assert cb_resp.json()["pending"] == 200

    # 5. Admin rejects payout 2
    rej_resp = client.post(
        f"/api/payouts/{p2_id}/reject",
        headers=admin_headers,
        json={"reason": "Incorrect payment details"},
    )
    assert rej_resp.status_code == 200, rej_resp.text
    p2_data = rej_resp.json()
    assert p2_data["status"] == "rejected"
    assert p2_data["reviewed_by"] == admin_id

    # Creator balance refunded: 500 + 200 = 700 available, 0 pending
    cb_resp = client.get("/api/marketplace/creator/balance", headers=creator_headers)
    assert cb_resp.json()["available"] == 700
    assert cb_resp.json()["pending"] == 0