"""Scenario API integration tests (S5-T10)."""

import json
from unittest.mock import AsyncMock, patch

import pytest
from httpx import AsyncClient


async def test_list_scenarios_empty(client: AsyncClient) -> None:
    resp = await client.get("/api/scenarios")
    assert resp.status_code == 200
    assert resp.json() == []


async def test_create_and_get_scenario(client: AsyncClient) -> None:
    mock_pool = AsyncMock()
    mock_pool.enqueue_job = AsyncMock()
    mock_pool.aclose = AsyncMock()

    with patch("remodel_api.routers.scenarios.arq.create_pool", return_value=mock_pool):
        resp = await client.post("/api/scenarios", json={"name": "Test Scenario"})

    assert resp.status_code == 201
    data = resp.json()
    assert data["name"] == "Test Scenario"
    assert data["status"] == "queued"
    scenario_id = data["id"]

    resp2 = await client.get(f"/api/scenarios/{scenario_id}")
    assert resp2.status_code == 200
    assert resp2.json()["id"] == scenario_id


async def test_get_scenario_not_found(client: AsyncClient) -> None:
    resp = await client.get("/api/scenarios/nonexistent-id")
    assert resp.status_code == 404


async def test_list_scenarios_after_create(client: AsyncClient) -> None:
    mock_pool = AsyncMock()
    mock_pool.enqueue_job = AsyncMock()
    mock_pool.aclose = AsyncMock()

    with patch("remodel_api.routers.scenarios.arq.create_pool", return_value=mock_pool):
        await client.post("/api/scenarios", json={"name": "S1"})
        await client.post("/api/scenarios", json={"name": "S2"})

    resp = await client.get("/api/scenarios")
    assert resp.status_code == 200
    assert len(resp.json()) == 2


async def test_create_scenario_with_inputs(client: AsyncClient) -> None:
    mock_pool = AsyncMock()
    mock_pool.enqueue_job = AsyncMock()
    mock_pool.aclose = AsyncMock()

    payload = {
        "name": "Solar 10MW",
        "inputs": {
            "solar": {"location_id": "RJ", "capacity_dc_mwp": 10.0, "capacity_ac_mw": 8.0}
        },
    }
    with patch("remodel_api.routers.scenarios.arq.create_pool", return_value=mock_pool):
        resp = await client.post("/api/scenarios", json=payload)

    assert resp.status_code == 201
    data = resp.json()
    assert data["name"] == "Solar 10MW"
    mock_pool.enqueue_job.assert_awaited_once()


async def test_get_kpis_not_success(client: AsyncClient) -> None:
    mock_pool = AsyncMock()
    mock_pool.enqueue_job = AsyncMock()
    mock_pool.aclose = AsyncMock()

    with patch("remodel_api.routers.scenarios.arq.create_pool", return_value=mock_pool):
        resp = await client.post("/api/scenarios", json={"name": "Pending"})

    scenario_id = resp.json()["id"]
    resp2 = await client.get(f"/api/scenarios/{scenario_id}/kpis")
    assert resp2.status_code == 409


async def test_get_statements_not_success(client: AsyncClient) -> None:
    mock_pool = AsyncMock()
    mock_pool.enqueue_job = AsyncMock()
    mock_pool.aclose = AsyncMock()

    with patch("remodel_api.routers.scenarios.arq.create_pool", return_value=mock_pool):
        resp = await client.post("/api/scenarios", json={"name": "Pending"})

    scenario_id = resp.json()["id"]
    resp2 = await client.get(f"/api/scenarios/{scenario_id}/statements")
    assert resp2.status_code == 409


async def test_archive_scenario(client: AsyncClient) -> None:
    mock_pool = AsyncMock()
    mock_pool.enqueue_job = AsyncMock()
    mock_pool.aclose = AsyncMock()

    with patch("remodel_api.routers.scenarios.arq.create_pool", return_value=mock_pool):
        resp = await client.post("/api/scenarios", json={"name": "ToArchive"})

    scenario_id = resp.json()["id"]
    del_resp = await client.delete(f"/api/scenarios/{scenario_id}")
    assert del_resp.status_code == 200

    list_resp = await client.get("/api/scenarios")
    assert not any(s["id"] == scenario_id for s in list_resp.json())


async def test_get_kpis_success(client: AsyncClient, db_session: object) -> None:
    from sqlalchemy.ext.asyncio import AsyncSession

    from remodel_api.db.models import Scenario

    session = db_session  # already the overridden session
    assert isinstance(session, AsyncSession)
    kpis = {"equity_irr": 0.15, "total_capex_cr": 100.0}
    scenario = Scenario(
        name="Done",
        status="success",
        inputs_json="{}",
        kpis_json=json.dumps(kpis),
    )
    session.add(scenario)
    await session.commit()
    await session.refresh(scenario)
    scenario_id = scenario.id

    resp = await client.get(f"/api/scenarios/{scenario_id}/kpis")
    assert resp.status_code == 200
    data = resp.json()
    assert data["equity_irr"] == pytest.approx(0.15)


async def test_get_statements_success(client: AsyncClient, db_session: object) -> None:
    from sqlalchemy.ext.asyncio import AsyncSession

    from remodel_api.db.models import Scenario

    session = db_session
    assert isinstance(session, AsyncSession)
    stmts = {"pnl": [{"year": 1, "revenue_cr": 50.0}], "cfs": [], "bs": []}
    scenario = Scenario(
        name="Done2",
        status="success",
        inputs_json="{}",
        statements_json=json.dumps(stmts),
    )
    session.add(scenario)
    await session.commit()
    await session.refresh(scenario)
    scenario_id = scenario.id

    resp = await client.get(f"/api/scenarios/{scenario_id}/statements")
    assert resp.status_code == 200
    data = resp.json()
    assert "pnl" in data
    assert len(data["pnl"]) == 1