#!/usr/bin/env python3
"""
Automated API Testing Script for Stock Monitoring API
Tests authentication, endpoints, and security features.

Updated for new API architecture:
- Removed /data/download endpoint (now uses only /data/download-all)
- Removed force_refresh parameter (uses automatic 24h freshness check)
- Updated bulk download strategy testing
"""

import requests
import json
import time
import os
from dotenv import load_dotenv

# Load environment variables from parent directory
load_dotenv(dotenv_path="../.env")
PORT = os.getenv("PORT", "8000")
print(f"Using PORT: {PORT}")


# Configuration
BASE_URL = f"http://localhost:{PORT}"
API_KEY = os.getenv("API_KEY")
INVALID_API_KEY = "invalid_key_for_testing"

# Headers
HEADERS_NO_AUTH = {"Content-Type": "application/json"}
HEADERS_VALID_AUTH = {
    "Content-Type": "application/json",
    "Authorization": f"Bearer {API_KEY}"
}
HEADERS_INVALID_AUTH = {
    "Content-Type": "application/json", 
    "Authorization": f"Bearer {INVALID_API_KEY}"
}

def print_test_header(test_name):
    """Print formatted test header."""
    print(f"\n{'='*60}")
    print(f"🧪 {test_name}")
    print(f"{'='*60}")

def print_result(endpoint, method, expected_status, actual_status, passed):
    """Print test result."""
    status_icon = "✅" if passed else "❌"
    print(f"{status_icon} {method} {endpoint}")
    print(f"   Expected: {expected_status}, Got: {actual_status}")
    if not passed:
        print(f"   ❌ TEST FAILED")
    return passed

def test_health_check():
    """Test the health check endpoint (should be public)."""
    print_test_header("Health Check (Public Endpoint)")
    
    try:
        response = requests.get(f"{BASE_URL}/", headers=HEADERS_NO_AUTH, timeout=10)
        passed = response.status_code == 200
        print_result("/", "GET", 200, response.status_code, passed)
        
        if passed:
            data = response.json()
            print(f"   📊 Status: {data.get('status')}")
            print(f"   🕐 Timestamp: {data.get('timestamp')}")
            print(f"   💾 DB Connected: {data.get('database', {}).get('connected')}")
        
        return passed
    except Exception as e:
        print(f"❌ Health check failed: {e}")
        return False

def test_public_endpoints():
    """Test public endpoints that should work without authentication."""
    print_test_header("Public Endpoints (No Auth Required)")
    
    all_passed = True
    
    # Test GET /tickers
    try:
        response = requests.get(f"{BASE_URL}/tickers?limit=5", headers=HEADERS_NO_AUTH, timeout=10)
        passed = response.status_code == 200
        all_passed &= print_result("/tickers", "GET", 200, response.status_code, passed)
        
        if passed:
            data = response.json()
            print(f"   📈 Returned {len(data)} tickers")
    except Exception as e:
        print(f"❌ GET /tickers failed: {e}")
        all_passed = False
    
    return all_passed

def test_protected_endpoints_no_auth():
    """Test protected endpoints without authentication (should fail)."""
    print_test_header("Protected Endpoints - No Auth (Should Fail)")
    
    all_passed = True
    
    protected_endpoints = [
        ("POST", "/tickers/update", {"force_refresh": False}),
        ("POST", "/tickers/update-async", {"force_refresh": False}),
        ("POST", "/data/download-all", None),
        ("GET", "/tasks", None),
        ("DELETE", "/tasks/old", None)
    ]
    
    for method, endpoint, payload in protected_endpoints:
        try:
            if method == "GET":
                response = requests.get(f"{BASE_URL}{endpoint}", headers=HEADERS_NO_AUTH, timeout=10)
            elif method == "POST":
                response = requests.post(f"{BASE_URL}{endpoint}", headers=HEADERS_NO_AUTH, json=payload, timeout=10)
            elif method == "DELETE":
                response = requests.delete(f"{BASE_URL}{endpoint}", headers=HEADERS_NO_AUTH, timeout=10)
            
            # Should return 403 (Forbidden) or 401 (Unauthorized)
            passed = response.status_code in [401, 403]
            all_passed &= print_result(endpoint, method, "401/403", response.status_code, passed)
            
        except Exception as e:
            print(f"❌ {method} {endpoint} failed: {e}")
            all_passed = False
    
    return all_passed

def test_protected_endpoints_invalid_auth():
    """Test protected endpoints with invalid authentication (should fail)."""
    print_test_header("Protected Endpoints - Invalid Auth (Should Fail)")
    
    all_passed = True
    
    protected_endpoints = [
        ("POST", "/tickers/update", {"force_refresh": False}),
        ("POST", "/data/download-all", None),
        ("GET", "/tasks", None),
    ]
    
    for method, endpoint, payload in protected_endpoints:
        try:
            if method == "GET":
                response = requests.get(f"{BASE_URL}{endpoint}", headers=HEADERS_INVALID_AUTH, timeout=10)
            elif method == "POST":
                response = requests.post(f"{BASE_URL}{endpoint}", headers=HEADERS_INVALID_AUTH, json=payload, timeout=10)
            
            # Should return 401 (Unauthorized)
            passed = response.status_code == 401
            all_passed &= print_result(endpoint, method, "401", response.status_code, passed)
            
        except Exception as e:
            print(f"❌ {method} {endpoint} failed: {e}")
            all_passed = False
    
    return all_passed

def test_protected_endpoints_valid_auth():
    """Test protected endpoints with valid authentication (should succeed)."""
    print_test_header("Protected Endpoints - Valid Auth (Should Succeed)")
    
    all_passed = True
    
    # Test GET /tasks
    try:
        response = requests.get(f"{BASE_URL}/tasks", headers=HEADERS_VALID_AUTH, timeout=10)
        passed = response.status_code == 200
        all_passed &= print_result("/tasks", "GET", 200, response.status_code, passed)
        
        if passed:
            data = response.json()
            print(f"   📋 Found {len(data)} tasks")
    except Exception as e:
        print(f"❌ GET /tasks failed: {e}")
        all_passed = False
    
    # Test POST /tickers/update-async (safer than sync version)
    try:
        response = requests.post(
            f"{BASE_URL}/tickers/update-async", 
            headers=HEADERS_VALID_AUTH, 
            json={"force_refresh": False},
            timeout=15
        )
        passed = response.status_code == 200
        all_passed &= print_result("/tickers/update-async", "POST", 200, response.status_code, passed)
        
        if passed:
            data = response.json()
            task_id = data.get("task_id")
            print(f"   🚀 Task started: {task_id}")
            
            # Test GET /tasks/{task_id}
            if task_id:
                time.sleep(1)  # Give task a moment to start
                response = requests.get(f"{BASE_URL}/tasks/{task_id}", headers=HEADERS_VALID_AUTH, timeout=10)
                passed = response.status_code == 200
                all_passed &= print_result(f"/tasks/{task_id}", "GET", 200, response.status_code, passed)
                
                if passed:
                    task_data = response.json()
                    print(f"   📊 Task status: {task_data.get('status')}")
                    
    except Exception as e:
        print(f"❌ POST /tickers/update-async failed: {e}")
        all_passed = False
    
    # Test DELETE /tasks/old
    try:
        response = requests.delete(f"{BASE_URL}/tasks/old", headers=HEADERS_VALID_AUTH, timeout=10)
        passed = response.status_code == 200
        all_passed &= print_result("/tasks/old", "DELETE", 200, response.status_code, passed)
        
        if passed:
            data = response.json()
            print(f"   🗑️  Deleted {data.get('deleted', 0)} old tasks")
    except Exception as e:
        print(f"❌ DELETE /tasks/old failed: {e}")
        all_passed = False
    
    return all_passed

def test_data_endpoints():
    """Test data download and query endpoints."""
    print_test_header("Data Endpoints - Valid Auth (Should Succeed)")
    
    all_passed = True
    
    # Test POST /data/download-all (bulk download with automatic freshness check)
    # Note: This endpoint now automatically checks if data is <24h old and skips update if fresh
    # First run will download all data, subsequent runs may return "data is fresh" message
    try:
        response = requests.post(
            f"{BASE_URL}/data/download-all", 
            headers=HEADERS_VALID_AUTH, 
            timeout=90  # Bulk download might take longer, especially first time
        )
        passed = response.status_code == 200
        all_passed &= print_result("/data/download-all", "POST", 200, response.status_code, passed)
        
        if passed:
            data = response.json()
            print(f"   📊 Processed {data.get('tickers_processed', 0)} tickers")
            print(f"   📈 Created {data.get('records_created', 0)} records")
            print(f"   🔄 Updated {data.get('records_updated', 0)} records")
            print(f"   📅 Date range: {data.get('date_range', {}).get('start_date')} to {data.get('date_range', {}).get('end_date')}")
            print(f"   💬 Message: {data.get('message', 'N/A')}")
    except Exception as e:
        print(f"❌ POST /data/download-all failed: {e}")
        all_passed = False
    
    # Test GET /data/tickers/{ticker} (public endpoint)
    try:
        response = requests.get(f"{BASE_URL}/data/tickers/AAPL?days=5", headers=HEADERS_NO_AUTH, timeout=10)
        passed = response.status_code == 200
        all_passed &= print_result("/data/tickers/AAPL", "GET", 200, response.status_code, passed)
        
        if passed:
            data = response.json()
            print(f"   📊 Retrieved {len(data)} days of AAPL data")
            if data:
                latest = data[0]
                print(f"   💰 Latest close: ${latest.get('close', 0):.2f}")
    except Exception as e:
        print(f"❌ GET /data/tickers/AAPL failed: {e}")
        all_passed = False
    
    return all_passed

def test_sql_injection_safety():
    """Test that SQL injection attempts are safely handled."""
    print_test_header("SQL Injection Safety Tests")
    
    all_passed = True
    
    # Test various SQL injection attempts in query parameters
    injection_attempts = [
        "'; DROP TABLE tickers; --",
        "' OR '1'='1",
        "1' UNION SELECT * FROM tasks --",
        "'; DELETE FROM tasks; --"
    ]
    
    for injection in injection_attempts:
        try:
            # Test in ticker endpoint (should be safely parameterized)
            response = requests.get(
                f"{BASE_URL}/tickers", 
                params={"limit": injection},
                headers=HEADERS_NO_AUTH,
                timeout=10
            )
            
            # Should either return 422 (validation error) or 200 with safe handling
            passed = response.status_code in [200, 422]
            print_result(f"/tickers?limit={injection[:20]}...", "GET", "200/422", response.status_code, passed)
            all_passed &= passed
            
        except Exception as e:
            print(f"❌ SQL injection test failed: {e}")
            all_passed = False
    
    print("   🛡️  SQL injection tests completed")
    return all_passed

def main():
    """Run all tests."""
    print("🧪 Starting Stock Monitoring API Tests")
    print(f"🔗 Base URL: {BASE_URL}")
    print(f"🔑 API Key: {API_KEY[:10]}...")
    
    all_tests_passed = True
    
    # Run test suites
    all_tests_passed &= test_health_check()
    all_tests_passed &= test_public_endpoints()
    all_tests_passed &= test_protected_endpoints_no_auth()
    all_tests_passed &= test_protected_endpoints_invalid_auth()
    all_tests_passed &= test_protected_endpoints_valid_auth()
    all_tests_passed &= test_data_endpoints()
    all_tests_passed &= test_sql_injection_safety()
    
    # Final results
    print(f"\n{'='*60}")
    if all_tests_passed:
        print("🎉 ALL TESTS PASSED! ✅")
        print("✅ API Key authentication is working")
        print("✅ Protected endpoints are secure")
        print("✅ SQL injection protection is active")
        print("✅ Public endpoints are accessible")
        print("✅ Bulk data download with freshness check is working")
        print("✅ New optimized API architecture is functional")
    else:
        print("❌ SOME TESTS FAILED!")
        print("⚠️  Please check the API implementation")
    print(f"{'='*60}")
    
    return 0 if all_tests_passed else 1

if __name__ == "__main__":
    exit(main())