# Import required libraries
import os
import requests
import speech_recognition as sr
import difflib
import gradio as gr
from gtts import gTTS
import io
from pydub import AudioSegment
import time
import eng_to_ipa as ipa

# Function to create pronunciation audio
def create_pronunciation_audio(word):
    try:
        tts = gTTS(word)
        audio_file_path = f"audio/{word}.mp3"
        tts.save(audio_file_path)
        return audio_file_path  # Return the local path instead of uploading
    except Exception as e:
        return f"Failed to create pronunciation audio: {e}"

# Function to upload audio files to the server
def upfilepath(local_filename):
    ts = time.time()
    upload_url = f"https://mr2along-speech-recognize.hf.space/gradio_api/upload?upload_id={ts}"
    files = {'files': open(local_filename, 'rb')}

    try:
        response = requests.post(upload_url, files=files, timeout=30)  # Set timeout (e.g., 30 seconds)
        if response.status_code == 200:
            result = response.json()
            extracted_path = result[0]
            return extracted_path
        else:
            return None
    except requests.exceptions.Timeout:
        return "Request timed out. Please try again."
    except Exception as e:
        return f"An error occurred: {e}"

# Update the compare_texts function
def compare_texts(reference_text, transcribed_text):
    reference_words = reference_text.split()
    transcribed_words = transcribed_text.split()
    incorrect_words_audios = []  # Store audio paths for incorrect words

    sm = difflib.SequenceMatcher(None, reference_text, transcribed_text)
    similarity_score = round(sm.ratio() * 100, 2)

    # Construct HTML output
    html_output = f"<strong>Fidelity Class:</strong> "
    if similarity_score >= 85:
        html_output += f"<strong>GOOD (>=85%)</strong><br>"
    elif similarity_score >= 70:
        html_output += f"<strong>ACCEPTABLE (70% - 85%)</strong><br>"
    elif similarity_score >= 50:
        html_output += f"<strong>NEEDS IMPROVEMENT (50% - 70%)</strong><br>"
    else:
        html_output += f"<strong>POOR (<50%)</strong><br>"

    html_output += f"<strong>Quality Score:</strong> {similarity_score}%<br>"
    html_output += f"<strong>Transcribed Text:</strong> {transcribed_text}<br>"
    html_output += f"<strong>IPA Transcription:</strong> {ipa_transcription(reference_text)}<br>"
    html_output += "<strong>Word Score List:</strong><br>"

    # Generate colored word score list and audio links
    for i, word in enumerate(reference_words):
        try:
            if word.lower() == transcribed_words[i].lower():
                html_output += f'<span style="color: green;">{word}</span> '  # Correct words in green
            elif difflib.get_close_matches(word, [transcribed_words[i]]):
                html_output += f'<span style="color: yellow;">{word}</span> '  # Close matches in yellow
            else:
                # Incorrect words in red
                html_output += f'<span style="color: red;">{word}</span> '
                # Create pronunciation audio for the incorrect word
                audio_file_path = create_pronunciation_audio(word)
                incorrect_words_audios.append((word, audio_file_path))
        except IndexError:
            # Word in reference that was not transcribed
            html_output += f'<span style="color: red;">{word}</span> '

    # Provide audio for incorrect words
    if incorrect_words_audios:
        html_output += "<br><strong>Pronunciation for Incorrect Words:</strong><br>"
        for word, audio in incorrect_words_audios:
            up_audio = upfilepath(audio)  # Upload the audio
            audio_src = f"https://mr2along-speech-recognize.hf.space/gradio_api/file={up_audio}"  # Use the upload URL
            html_output += f'{word}: '
            html_output += f'<audio controls><source src="{audio_src}" type="audio/mpeg">Your browser does not support the audio tag.</audio><br>'

    return [html_output]


# Step 4: Text-to-Speech Function
def text_to_speech(paragraph):
    if not paragraph:
        return None  # Handle the case when no text is provided
    
    tts = gTTS(paragraph)
    audio_file_path = "audio/paragraph.mp3"  # Save the audio to a file
    tts.save(audio_file_path)
    return audio_file_path  # Return the file path

# Gradio Interface Function
def gradio_function(paragraph, audio):
    # Transcribe the audio
    transcribed_text = transcribe_audio(audio)
    # Compare the original paragraph with the transcribed text
    comparison_result = compare_texts(paragraph, transcribed_text)

    # Return comparison result
    return comparison_result
    
# Gradio Interface using the updated API
interface = gr.Interface(
    fn=gradio_function, 
    inputs=[
        gr.Textbox(lines=5, label="Input Paragraph"),
        gr.Audio(type="filepath", label="Record Audio")
    ], 
    outputs=["html"],
    title="Speech Recognition Comparison",
    description="Input a paragraph, record your audio, and compare the transcription to the original text."
)

# Gradio Interface for Text-to-Speech
tts_interface = gr.Interface(
    fn=text_to_speech,
    inputs=gr.Textbox(lines=5, label="Input Paragraph to Read Aloud"),
    outputs=gr.Audio(label="Text-to-Speech Output"),
    title="Text-to-Speech",
    description="This tool will read your input paragraph aloud."
)

# Combine both interfaces into one
demo = gr.TabbedInterface([interface, tts_interface], ["Speech Recognition", "Text-to-Speech"])

# Launch Gradio app
demo.launch()