import re
import json

def extract_language_maps(filepath):
    with open(filepath, 'r', encoding='utf-8') as f:
        content = f.read()
    
    # Let's find language blocks like: "en": { ... }, "fr": { ... }
    # To parse these blocks, we find the starting position of each language identifier
    # and scan until the matching closing brace.
    languages = ['tr', 'fr', 'de', 'es', 'fa', 'el', 'ur', 'hi', 'ru', 'it', 'zh']
    extracted = {}
    
    for lang in languages:
        # Regex to find: "lang": { or 'lang': {
        pattern = re.compile(r'[\'"]' + lang + r'[\'"]\s*:\s*\{')
        match = pattern.search(content)
        if not match:
            print(f"Language {lang} map start not found!")
            continue
        
        start_idx = match.end()
        # Find matching closing brace
        brace_count = 1
        current_idx = start_idx
        while brace_count > 0 and current_idx < len(content):
            char = content[current_idx]
            if char == '{':
                brace_count += 1
            elif char == '}':
                brace_count -= 1
            current_idx += 1
        
        block = content[start_idx:current_idx-1]
        
        # Now parse the key-value pairs inside the block
        # Example: "key": "value", or 'key': 'value',
        # Handle escaped quotes.
        # Pattern: (['"])(.*?)\1\s*:\s*(['"])(.*?)\3\s*(?:,|$)
        kv_pattern = re.compile(r'^\s*([\'"])(.*?)\1\s*:\s*([\'"])(.*?)\3\s*,?\s*$', re.MULTILINE)
        kv_matches = kv_pattern.findall(block)
        
        lang_map = {}
        for kv in kv_matches:
            key = kv[1]
            val = kv[3]
            # Unescape quotes
            key = key.replace('\\"', '"').replace("\\'", "'")
            val = val.replace('\\"', '"').replace("\\'", "'")
            lang_map[key] = val
        
        extracted[lang] = lang_map
        print(f"Extracted {lang}: {len(lang_map)} keys")
        
    return extracted

extracted = extract_language_maps("scratch/legacy_translations.dart")
with open("scratch/legacy_extracted_languages.json", "w", encoding="utf-8") as f:
    json.dump(extracted, f, ensure_ascii=False, indent=2)
print("Saved legacy extracted languages to JSON.")