import os
import re
from typing import List, Tuple

def find_angular_files(root_dir: str) -> List[str]:
    """Find all HTML and TypeScript files in the Angular project."""
    angular_files = []
    for root, _, files in os.walk(root_dir):
        for file in files:
            if file.endswith(('.html', '.ts')):
                angular_files.append(os.path.join(root, file))
    return angular_files

def check_img_tags(file_path: str) -> List[Tuple[int, str]]:
    """Check for img tags without alt attribute in a file."""
    with open(file_path, 'r', encoding='utf-8') as file:
        content = file.read()
        
    # Regular expression to find <img> tags without alt attribute
    img_pattern = re.compile(r'<img(?![^>]*alt=)[^>]*>', re.IGNORECASE)
    
    issues = []
    for match in img_pattern.finditer(content):
        line_number = content[:match.start()].count('\n') + 1
        issues.append((line_number, match.group()))
    
    return issues

def main():
    project_root = input("Enter the root directory of your Angular project: ")
    
    if not os.path.isdir(project_root):
        print(f"Error: {project_root} is not a valid directory.")
        return
    
    angular_files = find_angular_files(project_root)
    
    for file_path in angular_files:
        issues = check_img_tags(file_path)
        if issues:
            print(f"\nIssues found in {file_path}:")
            for line_number, img_tag in issues:
                print(f"  Line {line_number}: {img_tag}")

if __name__ == "__main__":
    main()