"""Tests for the equipment API endpoints."""

from decimal import Decimal

import pytest
from httpx import AsyncClient
from sqlalchemy.ext.asyncio import AsyncSession

from app.models.equipment import EquipmentCache


async def seed_equipment(db: AsyncSession) -> list[EquipmentCache]:
    """Insert test equipment rows and return them."""
    items = [
        EquipmentCache(
            rentman_id="100", name="L-Acoustics K2", number="K2-001",
            category="Lautsprecher", description="Line Array Element",
            rental_price=Decimal("250.00"), brand="L-Acoustics", available=True,
        ),
        EquipmentCache(
            rentman_id="101", name="L-Acoustics KS28", number="KS28-001",
            category="Subwoofer", description="Subwoofer",
            rental_price=Decimal("180.00"), brand="L-Acoustics", available=True,
        ),
        EquipmentCache(
            rentman_id="102", name="d&b T10", number="T10-001",
            category="Lautsprecher", description="Point Source",
            rental_price=Decimal("120.00"), brand="d&b audiotechnik", available=True,
        ),
        EquipmentCache(
            rentman_id="103", name="Robe Pointe", number="PT-001",
            category="Licht", description="Moving Head",
            rental_price=Decimal("95.00"), brand="Robe", available=True,
        ),
    ]
    db.add_all(items)
    await db.commit()
    for item in items:
        await db.refresh(item)
    return items


@pytest.mark.asyncio
async def test_list_equipment_empty(client: AsyncClient):
    """GET /api/equipment on empty DB returns empty paginated response."""
    response = await client.get("/api/equipment")
    assert response.status_code == 200
    data = response.json()
    assert data["items"] == []
    assert data["total"] == 0
    assert data["page"] == 1
    assert data["page_size"] == 20
    assert data["total_pages"] == 0


@pytest.mark.asyncio
async def test_list_equipment_with_data(client: AsyncClient, db_session: AsyncSession):
    """GET /api/equipment returns paginated items after seeding."""
    await seed_equipment(db_session)
    response = await client.get("/api/equipment")
    assert response.status_code == 200
    data = response.json()
    assert data["total"] == 4
    assert len(data["items"]) == 4
    assert data["page"] == 1
    assert data["page_size"] == 20
    assert data["total_pages"] == 1


@pytest.mark.asyncio
async def test_list_equipment_search(client: AsyncClient, db_session: AsyncSession):
    """GET /api/equipment?search=K2 returns only matching items."""
    await seed_equipment(db_session)
    response = await client.get("/api/equipment?search=K2")
    assert response.status_code == 200
    data = response.json()
    assert data["total"] == 1
    assert data["items"][0]["name"] == "L-Acoustics K2"


@pytest.mark.asyncio
async def test_list_equipment_category_filter(client: AsyncClient, db_session: AsyncSession):
    """GET /api/equipment?category=Lautsprecher returns only matching items."""
    await seed_equipment(db_session)
    response = await client.get("/api/equipment?category=Lautsprecher")
    assert response.status_code == 200
    data = response.json()
    assert data["total"] == 2
    for item in data["items"]:
        assert item["category"] == "Lautsprecher"


@pytest.mark.asyncio
async def test_list_equipment_sort_name_desc(client: AsyncClient, db_session: AsyncSession):
    """GET /api/equipment?sort=name_desc returns items sorted descending."""
    await seed_equipment(db_session)
    response = await client.get("/api/equipment?sort=name_desc")
    assert response.status_code == 200
    data = response.json()
    names = [item["name"] for item in data["items"]]
    assert names == sorted(names, reverse=True)


@pytest.mark.asyncio
async def test_list_equipment_pagination(client: AsyncClient, db_session: AsyncSession):
    """GET /api/equipment with page_size=2 returns correct pagination."""
    await seed_equipment(db_session)
    response = await client.get("/api/equipment?page=1&page_size=2")
    assert response.status_code == 200
    data = response.json()
    assert len(data["items"]) == 2
    assert data["total"] == 4
    assert data["total_pages"] == 2

    response2 = await client.get("/api/equipment?page=2&page_size=2")
    data2 = response2.json()
    assert len(data2["items"]) == 2
    assert data2["page"] == 2


@pytest.mark.asyncio
async def test_get_equipment_detail(client: AsyncClient, db_session: AsyncSession):
    """GET /api/equipment/{id} returns the full detail."""
    items = await seed_equipment(db_session)
    eq_id = items[0].id
    response = await client.get(f"/api/equipment/{eq_id}")
    assert response.status_code == 200
    data = response.json()
    assert data["id"] == eq_id
    assert data["name"] == "L-Acoustics K2"
    assert data["brand"] == "L-Acoustics"


@pytest.mark.asyncio
async def test_get_equipment_not_found(client: AsyncClient):
    """GET /api/equipment/999999 returns 404."""
    response = await client.get("/api/equipment/999999")
    assert response.status_code == 404
    assert "not found" in response.json()["detail"].lower()


@pytest.mark.asyncio
async def test_get_categories(client: AsyncClient, db_session: AsyncSession):
    """GET /api/equipment/categories returns distinct categories."""
    await seed_equipment(db_session)
    response = await client.get("/api/equipment/categories")
    assert response.status_code == 200
    data = response.json()
    assert isinstance(data, list)
    assert "Lautsprecher" in data
    assert "Subwoofer" in data
    assert "Licht" in data