#!/usr/bin/env python
"""
Test script for HTML email template functionality
"""

import os
import sys
import django

# Setup Django
os.environ.setdefault('DJANGO_SETTINGS_MODULE', 'NorahUniversity.settings')
django.setup()

from django.template.loader import render_to_string
from django.utils.html import strip_tags
from recruitment.models import Candidate, JobPosting
from recruitment.email_service import send_interview_invitation_email

def test_html_template():
    """Test the HTML email template rendering"""
    print("Testing HTML email template...")

    # Create test context
    context = {
        'candidate_name': 'John Doe',
        'candidate_email': 'john.doe@example.com',
        'candidate_phone': '+966 50 123 4567',
        'job_title': 'Senior Software Developer',
        'department': 'Information Technology',
        'company_name': 'Norah University',
        'meeting_topic': 'Interview for Senior Software Developer',
        'meeting_date_time': 'November 15, 2025 at 2:00 PM',
        'meeting_duration': '60 minutes',
        'join_url': 'https://zoom.us/j/123456789',
    }

    try:
        # Test template rendering
        html_content = render_to_string('emails/interview_invitation.html', context)
        plain_content = strip_tags(html_content)

        print("✅ HTML template rendered successfully!")
        print(f"HTML content length: {len(html_content)} characters")
        print(f"Plain text length: {len(plain_content)} characters")

        # Save rendered HTML to file for inspection
        with open('test_interview_email.html', 'w', encoding='utf-8') as f:
            f.write(html_content)
        print("✅ HTML content saved to 'test_interview_email.html'")

        # Save plain text to file for inspection
        with open('test_interview_email.txt', 'w', encoding='utf-8') as f:
            f.write(plain_content)
        print("✅ Plain text content saved to 'test_interview_email.txt'")

        return True

    except Exception as e:
        print(f"❌ Error rendering template: {e}")
        return False

def test_email_service_function():
    """Test the email service function with mock data"""
    print("\nTesting email service function...")

    try:
        # Get a real candidate and job for testing
        candidate = Candidate.objects.first()
        job = JobPosting.objects.first()

        if not candidate:
            print("❌ No candidates found in database")
            return False

        if not job:
            print("❌ No jobs found in database")
            return False

        print(f"Using candidate: {candidate.name}")
        print(f"Using job: {job.title}")

        # Test meeting details
        meeting_details = {
            'topic': f'Interview for {job.title}',
            'date_time': 'November 15, 2025 at 2:00 PM',
            'duration': '60 minutes',
            'join_url': 'https://zoom.us/j/test123456',
        }

        # Test the email function (without actually sending)
        result = send_interview_invitation_email(
            candidate=candidate,
            job=job,
            meeting_details=meeting_details,
            recipient_list=['test@example.com']
        )

        if result['success']:
            print("✅ Email service function executed successfully!")
            print(f"Recipients: {result.get('recipients_count', 'N/A')}")
            print(f"Message: {result.get('message', 'N/A')}")
        else:
            print(f"❌ Email service function failed: {result.get('error', 'Unknown error')}")

        return result['success']

    except Exception as e:
        print(f"❌ Error testing email service: {e}")
        return False

def test_template_variables():
    """Test all template variables"""
    print("\nTesting template variables...")

    # Test with minimal data
    minimal_context = {
        'candidate_name': 'Test Candidate',
        'candidate_email': 'test@example.com',
        'job_title': 'Test Position',
    }

    try:
        html_content = render_to_string('emails/interview_invitation.html', minimal_context)
        print("✅ Template works with minimal data")

        # Check for required variables
        required_vars = ['candidate_name', 'candidate_email', 'job_title']
        missing_vars = []

        for var in required_vars:
            if f'{{ {var} }}' in html_content:
                missing_vars.append(var)

        if missing_vars:
            print(f"⚠️  Missing variables: {missing_vars}")
        else:
            print("✅ All required variables are present")

        return True

    except Exception as e:
        print(f"❌ Error with minimal data: {e}")
        return False

def main():
    """Run all tests"""
    print("🧪 Testing HTML Email Template System")
    print("=" * 50)

    # Test 1: Template rendering
    test1_passed = test_html_template()

    # Test 2: Template variables
    test2_passed = test_template_variables()

    # Test 3: Email service function
    test3_passed = test_email_service_function()

    # Summary
    print("\n" + "=" * 50)
    print("📊 TEST SUMMARY")
    print(f"Template Rendering: {'✅ PASS' if test1_passed else '❌ FAIL'}")
    print(f"Template Variables: {'✅ PASS' if test2_passed else '❌ FAIL'}")
    print(f"Email Service: {'✅ PASS' if test3_passed else '❌ FAIL'}")

    overall_success = test1_passed and test2_passed and test3_passed
    print(f"\nOverall Result: {'✅ ALL TESTS PASSED' if overall_success else '❌ SOME TESTS FAILED'}")

    if overall_success:
        print("\n🎉 HTML email template system is ready!")
        print("You can now send professional interview invitations using the new template.")
    else:
        print("\n🔧 Please fix the issues before using the template system.")

if __name__ == '__main__':
    main()