import gradio as gr
from langdetect import detect
from gtts import gTTS
import os

# Define lang_map in global scope
lang_map = {
    'en': 'English',
    'es': 'Spanish',
    'fr': 'French',
    'de': 'German',
    'it': 'Italian',
    'pt': 'Portuguese',
    'nl': 'Dutch',
    'ru': 'Russian',
    'zh-cn': 'Chinese (Simplified)',
    'ja': 'Japanese',
    'ko': 'Korean',
    'pl': 'Polish',
    'uk': 'Ukrainian',
    'sk': 'Slovak',
    'lt': 'Lithuanian',
    'cs': 'Czech',
    'sr': 'Serbian',
    'hr': 'Croatian',
    'hi': 'Hindi'
}

def identify_and_pronounce(name, selected_lang):
    if not name or name.strip() == "":
        return "Please enter a name.", None
    
    # Detect the language of the name
    try:
        detected_lang = detect(name)
    except Exception as e:
        return f"Error detecting language: {str(e)}", None
    
    # If detected language isn't in map, use English as default but allow override
    detected_lang_name = lang_map.get(detected_lang, 'English (default)')
    detected_lang_code = detected_lang if detected_lang in lang_map else 'en'

    # Use selected language if provided and not "Auto", otherwise use detected language
    if selected_lang != "Auto" and selected_lang in lang_map.values():
        lang_name = selected_lang
        lang_code = [code for code, name in lang_map.items() if name == selected_lang][0]
    else:
        lang_name = detected_lang_name
        lang_code = detected_lang_code

    # Generate pronunciation
    try:
        tts = gTTS(text=name, lang=lang_code, slow=False)
        audio_file = "output.mp3"
        tts.save(audio_file)
        return f"Detected language: {detected_lang_name}\nPronounced in: {lang_name}", audio_file
    except Exception as e:
        return f"Error generating pronunciation: {str(e)}", None

# Gradio interface
language_options = ["Auto"] + list(lang_map.values())  # Include "Auto" as default option
interface = gr.Interface(
    fn=identify_and_pronounce,
    inputs=[
        gr.Textbox(label="Enter a name", value="Tomasz Durzyński"),
        gr.Dropdown(choices=language_options, label="Select Language (Auto uses detection)", value="Auto")
    ],
    outputs=[
        gr.Textbox(label="Language Info"),
        gr.Audio(label="Pronunciation")
    ],
    title="Name Language Detector and Pronouncer",
    description="Enter a name to detect its language and hear it pronounced. Optionally, select a language to override the default."
)

# Launch the app
interface.launch()