"""API tests for deal endpoints."""

from __future__ import annotations

from decimal import Decimal

import pytest
from httpx import AsyncClient
from sqlalchemy import select
from sqlalchemy.ext.asyncio import AsyncSession, async_sessionmaker

from app.models.activity import Activity, ActivityType
from app.models.deal import Deal, DealStage, DealStatus
from tests.api.v1.task_activity_shared import auth_headers, make_token, prepare_scenario


@pytest.mark.asyncio
async def test_create_deal_endpoint_uses_context_owner(
    session_factory: async_sessionmaker[AsyncSession],
    client: AsyncClient,
) -> None:
    scenario = await prepare_scenario(session_factory)
    token = make_token(scenario.user_id, scenario.user_email)

    response = await client.post(
        "/api/v1/deals/",
        json={
            "contact_id": scenario.contact_id,
            "title": "Upsell Subscription",
            "amount": 2500.0,
            "currency": "USD",
        },
        headers=auth_headers(token, scenario),
    )

    assert response.status_code == 201
    payload = response.json()
    assert payload["owner_id"] == scenario.user_id
    assert payload["organization_id"] == scenario.organization_id
    assert payload["title"] == "Upsell Subscription"


@pytest.mark.asyncio
async def test_list_deals_endpoint_filters_by_status(
    session_factory: async_sessionmaker[AsyncSession],
    client: AsyncClient,
) -> None:
    scenario = await prepare_scenario(session_factory)
    token = make_token(scenario.user_id, scenario.user_email)

    async with session_factory() as session:
        base_deal = await session.get(Deal, scenario.deal_id)
        assert base_deal is not None
        base_deal.status = DealStatus.NEW

        won_deal = Deal(
            organization_id=scenario.organization_id,
            contact_id=scenario.contact_id,
            owner_id=scenario.user_id,
            title="Enterprise Upgrade",
            amount=Decimal("8000"),
            currency="USD",
            status=DealStatus.WON,
            stage=DealStage.CLOSED,
        )
        session.add(won_deal)
        await session.commit()

    response = await client.get(
        "/api/v1/deals/?status=won",
        headers=auth_headers(token, scenario),
    )

    assert response.status_code == 200
    data = response.json()
    assert len(data) == 1
    assert data[0]["title"] == "Enterprise Upgrade"
    assert data[0]["status"] == DealStatus.WON.value


@pytest.mark.asyncio
async def test_update_deal_endpoint_updates_stage_and_logs_activity(
    session_factory: async_sessionmaker[AsyncSession],
    client: AsyncClient,
) -> None:
    scenario = await prepare_scenario(session_factory)
    token = make_token(scenario.user_id, scenario.user_email)

    response = await client.patch(
        f"/api/v1/deals/{scenario.deal_id}",
        json={
            "stage": DealStage.PROPOSAL.value,
            "status": DealStatus.WON.value,
            "amount": 5000.0,
            "currency": "USD",
        },
        headers=auth_headers(token, scenario),
    )

    assert response.status_code == 200
    body = response.json()
    assert body["stage"] == DealStage.PROPOSAL.value
    assert body["status"] == DealStatus.WON.value
    assert Decimal(body["amount"]) == Decimal("5000")

    async with session_factory() as session:
        activity_types = await session.scalars(
            select(Activity.type).where(Activity.deal_id == scenario.deal_id),
        )
        collected = set(activity_types.all())

    assert ActivityType.STAGE_CHANGED in collected
    assert ActivityType.STATUS_CHANGED in collected