import pytest
from httpx import AsyncClient
from sqlalchemy.ext.asyncio import AsyncSession
from ..utils import create_user_and_login, create_branch

pytestmark = pytest.mark.asyncio

@pytest.fixture
async def admin_token(client: AsyncClient) -> str:
    """Create an admin user and return their token"""
    user_data = await create_user_and_login(
        client,
        email="admin@example.com",
        password="adminpass123",
        full_name="Admin User",
        is_superuser=True
    )
    return user_data["token"]

@pytest.fixture
async def regular_token(client: AsyncClient) -> str:
    """Create a regular user and return their token"""
    user_data = await create_user_and_login(
        client,
        email="user@example.com",
        password="userpass123",
        full_name="Regular User",
        is_superuser=False
    )
    return user_data["token"]

async def test_create_branch(client: AsyncClient, admin_token: str):
    # Test creating a branch as admin
    response = await client.post(
        "/api/v1/branches/",
        json={
            "name": "Test Branch",
            "location": "Test Location",
            "contact_email": "branch@example.com",
            "phone": "1234567890"
        },
        headers={"Authorization": f"Bearer {admin_token}"}
    )
    assert response.status_code == 200
    data = response.json()
    assert data["name"] == "Test Branch"
    assert data["location"] == "Test Location"
    return data["id"]

async def test_create_branch_unauthorized(client: AsyncClient, regular_token: str):
    # Test creating a branch as regular user (should fail)
    response = await client.post(
        "/api/v1/branches/",
        json={
            "name": "Test Branch",
            "location": "Test Location"
        },
        headers={"Authorization": f"Bearer {regular_token}"}
    )
    assert response.status_code == 403

async def test_get_branch(client: AsyncClient, admin_token: str):
    # First create a branch
    branch_id = await test_create_branch(client, admin_token)
    
    # Test getting the branch
    response = await client.get(
        f"/api/v1/branches/{branch_id}",
        headers={"Authorization": f"Bearer {admin_token}"}
    )
    assert response.status_code == 200
    data = response.json()
    assert data["id"] == branch_id
    assert data["name"] == "Test Branch"

async def test_list_branches(client: AsyncClient, admin_token: str):
    # Create multiple branches
    await test_create_branch(client, admin_token)
    await client.post(
        "/api/v1/branches/",
        json={
            "name": "Another Branch",
            "location": "Another Location",
            "contact_email": "another@example.com",
            "phone": "0987654321"
        },
        headers={"Authorization": f"Bearer {admin_token}"}
    )
    
    # Test listing branches
    response = await client.get(
        "/api/v1/branches/",
        headers={"Authorization": f"Bearer {admin_token}"}
    )
    assert response.status_code == 200
    data = response.json()
    assert len(data) >= 2
    assert any(b["name"] == "Test Branch" for b in data)
    assert any(b["name"] == "Another Branch" for b in data)

async def test_update_branch(client: AsyncClient, admin_token: str):
    # First create a branch
    branch_id = await test_create_branch(client, admin_token)
    
    # Test updating the branch
    response = await client.put(
        f"/api/v1/branches/{branch_id}",
        json={
            "name": "Updated Branch",
            "location": "Updated Location",
            "contact_email": "updated@example.com",
            "phone": "1112223333"
        },
        headers={"Authorization": f"Bearer {admin_token}"}
    )
    assert response.status_code == 200
    data = response.json()
    assert data["name"] == "Updated Branch"
    assert data["location"] == "Updated Location"
    assert data["contact_email"] == "updated@example.com"

async def test_delete_branch(client: AsyncClient, admin_token: str):
    # First create a branch
    branch_id = await test_create_branch(client, admin_token)
    
    # Test deleting the branch
    response = await client.delete(
        f"/api/v1/branches/{branch_id}",
        headers={"Authorization": f"Bearer {admin_token}"}
    )
    assert response.status_code == 200
    
    # Verify branch is deleted
    response = await client.get(
        f"/api/v1/branches/{branch_id}",
        headers={"Authorization": f"Bearer {admin_token}"}
    )
    assert response.status_code == 404

async def test_branch_statistics(client: AsyncClient, admin_token: str):
    # First create a branch
    branch_id = await test_create_branch(client, admin_token)
    
    # Test getting branch statistics
    response = await client.get(
        f"/api/v1/branches/{branch_id}/statistics",
        headers={"Authorization": f"Bearer {admin_token}"}
    )
    assert response.status_code == 200
    data = response.json()
    assert "total_products" in data
    assert "total_orders" in data
    assert "total_revenue" in data
    assert "average_order_value" in data