"""
Test script for attendance check-in API.
Generates a JWT token and tests the check-in endpoint.
"""
import requests
import json
from datetime import datetime, timedelta
from jose import jwt
import os
from dotenv import load_dotenv

load_dotenv()

# Configuration
BASE_URL = "http://localhost:8003"
SECRET_KEY = os.getenv("SECRET_KEY", "your-secret-key-change-in-production")
ALGORITHM = os.getenv("ALGORITHM", "HS256")


def generate_test_token(
    user_id: str = "550e8400-e29b-41d4-a716-446655440000",
    username: str = "test.employee@example.com",
    merchant_id: str = "660e8400-e29b-41d4-a716-446655440000",
    role: str = "employee"
) -> str:
    """Generate a test JWT token"""
    
    payload = {
        "sub": user_id,
        "username": username,
        "merchant_id": merchant_id,
        "role": role,
        "exp": datetime.utcnow() + timedelta(hours=8)
    }
    
    token = jwt.encode(payload, SECRET_KEY, algorithm=ALGORITHM)
    return token


def test_health_check():
    """Test health check endpoint"""
    print("\n" + "=" * 80)
    print("TEST 1: Health Check")
    print("=" * 80)
    
    response = requests.get(f"{BASE_URL}/health")
    print(f"Status Code: {response.status_code}")
    print(f"Response: {json.dumps(response.json(), indent=2)}")
    
    assert response.status_code == 200
    print("✅ Health check passed")


def test_attendance_health():
    """Test attendance module health check"""
    print("\n" + "=" * 80)
    print("TEST 2: Attendance Module Health Check")
    print("=" * 80)
    
    response = requests.get(f"{BASE_URL}/tracker/attendance/health")
    print(f"Status Code: {response.status_code}")
    print(f"Response: {json.dumps(response.json(), indent=2)}")
    
    assert response.status_code == 200
    print("✅ Attendance health check passed")


def test_checkin_without_auth():
    """Test check-in without authentication (should fail)"""
    print("\n" + "=" * 80)
    print("TEST 3: Check-in Without Authentication (Should Fail)")
    print("=" * 80)
    
    payload = {
        "timestamp": int(datetime.now().timestamp() * 1000),
        "latitude": 19.0760,
        "longitude": 72.8777,
        "location_id": "loc_mumbai_office_001"
    }
    
    response = requests.post(
        f"{BASE_URL}/tracker/attendance/check-in",
        json=payload
    )
    
    print(f"Status Code: {response.status_code}")
    print(f"Response: {json.dumps(response.json(), indent=2)}")
    
    assert response.status_code == 403  # Forbidden without auth
    print("✅ Correctly rejected unauthenticated request")


def test_checkin_with_auth():
    """Test check-in with authentication"""
    print("\n" + "=" * 80)
    print("TEST 4: Check-in With Authentication")
    print("=" * 80)
    
    # Generate token
    token = generate_test_token()
    print(f"Generated JWT Token: {token[:50]}...")
    
    # Prepare payload
    payload = {
        "timestamp": int(datetime.now().timestamp() * 1000),
        "latitude": 19.0760,
        "longitude": 72.8777,
        "location_id": "loc_mumbai_office_001"
    }
    
    print(f"\nRequest Payload:")
    print(json.dumps(payload, indent=2))
    
    # Make request
    headers = {
        "Authorization": f"Bearer {token}",
        "Content-Type": "application/json"
    }
    
    response = requests.post(
        f"{BASE_URL}/tracker/attendance/check-in",
        json=payload,
        headers=headers
    )
    
    print(f"\nStatus Code: {response.status_code}")
    print(f"Response: {json.dumps(response.json(), indent=2)}")
    
    if response.status_code == 201:
        print("✅ Check-in successful")
    elif response.status_code == 400:
        error_detail = response.json().get("detail", {})
        if "Already checked in" in str(error_detail):
            print("⚠️  Already checked in today (expected if running multiple times)")
        elif "GPS" in str(error_detail):
            print("⚠️  GPS tracking disabled for this employee")
            print("   To fix: Update MongoDB scm_employees collection")
            print("   Set location_settings.location_tracking_consent = true")
        else:
            print(f"❌ Check-in failed: {error_detail}")
    else:
        print(f"❌ Unexpected status code: {response.status_code}")


def test_checkin_invalid_coordinates():
    """Test check-in with invalid coordinates"""
    print("\n" + "=" * 80)
    print("TEST 5: Check-in With Invalid Coordinates (Should Fail)")
    print("=" * 80)
    
    token = generate_test_token()
    
    payload = {
        "timestamp": int(datetime.now().timestamp() * 1000),
        "latitude": 999.0,  # Invalid latitude
        "longitude": 72.8777
    }
    
    headers = {
        "Authorization": f"Bearer {token}",
        "Content-Type": "application/json"
    }
    
    response = requests.post(
        f"{BASE_URL}/tracker/attendance/check-in",
        json=payload,
        headers=headers
    )
    
    print(f"Status Code: {response.status_code}")
    print(f"Response: {json.dumps(response.json(), indent=2)}")
    
    assert response.status_code == 422  # Validation error
    print("✅ Correctly rejected invalid coordinates")


def test_checkin_missing_fields():
    """Test check-in with missing required fields"""
    print("\n" + "=" * 80)
    print("TEST 6: Check-in With Missing Fields (Should Fail)")
    print("=" * 80)
    
    token = generate_test_token()
    
    payload = {
        "timestamp": int(datetime.now().timestamp() * 1000),
        # Missing latitude and longitude
    }
    
    headers = {
        "Authorization": f"Bearer {token}",
        "Content-Type": "application/json"
    }
    
    response = requests.post(
        f"{BASE_URL}/tracker/attendance/check-in",
        json=payload,
        headers=headers
    )
    
    print(f"Status Code: {response.status_code}")
    print(f"Response: {json.dumps(response.json(), indent=2)}")
    
    assert response.status_code == 422  # Validation error
    print("✅ Correctly rejected request with missing fields")


def main():
    """Run all tests"""
    print("\n" + "=" * 80)
    print("ATTENDANCE CHECK-IN API TEST SUITE")
    print("=" * 80)
    print(f"Base URL: {BASE_URL}")
    print(f"Time: {datetime.now().isoformat()}")
    print("=" * 80)
    
    try:
        test_health_check()
        test_attendance_health()
        test_checkin_without_auth()
        test_checkin_invalid_coordinates()
        test_checkin_missing_fields()
        test_checkin_with_auth()  # Run this last as it may succeed
        
        print("\n" + "=" * 80)
        print("✅ ALL TESTS COMPLETED")
        print("=" * 80)
        
    except requests.exceptions.ConnectionError:
        print("\n❌ ERROR: Could not connect to the server")
        print(f"   Make sure the service is running at {BASE_URL}")
        print("   Run: uvicorn app.main:app --host 0.0.0.0 --port 8003")
    except Exception as e:
        print(f"\n❌ ERROR: {e}")
        raise


if __name__ == "__main__":
    main()