import re
from pathlib import Path

import time

import gradio as gr
from elevenlabslib import ElevenLabsUser
from elevenlabslib.helpers import save_bytes_to_path
from extensions.silero_tts import tts_preprocessor

import modules.shared as shared

params = {
    'activate': True,
    'api_key': 'xxxxxxxxxxxxxxxxxxxxxxxxxx',
    'selected_voice': 'Quinn',
    'autoplay': True,
    'show_text': True,
}

initial_voice = ['Quinn']
wav_idx = 0
user = ElevenLabsUser(params['api_key'])
user_info = None

if not shared.args.no_stream:
    print("Please add --no-stream. This extension is not meant to be used with streaming.")
    raise ValueError

# Check if the API is valid and refresh the UI accordingly.


def check_valid_api():

    global user, user_info, params

    user = ElevenLabsUser(params['api_key'])
    user_info = user._get_subscription_data()
    print('checking api')
    if not params['activate']:
        return gr.update(value='Disconnected')
    elif user_info is None:
        print('Incorrect API Key')
        return gr.update(value='Disconnected')
    else:
        print('Got an API Key!')
        return gr.update(value='Connected')

# Once the API is verified, get the available voices and update the dropdown list


def refresh_voices():

    global user, user_info

    your_voices = [None]
    if user_info is not None:
        for voice in user.get_available_voices():
            your_voices.append(voice.initialName)
        return gr.Dropdown.update(choices=your_voices)
    else:
        return


def remove_surrounded_chars(string):
    # this expression matches to 'as few symbols as possible (0 upwards) between any asterisks' OR
    # 'as few symbols as possible (0 upwards) between an asterisk and the end of the string'
    return re.sub('', '', string)

def remove_tts_from_history(name1, name2, mode):
    for i, entry in enumerate(shared.history['internal']):
        shared.history['visible'][i] = [shared.history['visible'][i][0], entry[1]]
    return chat_html_wrapper(shared.history['visible'], name1, name2, mode)

def toggle_text_in_history(name1, name2, mode):
    for i, entry in enumerate(shared.history['visible']):
        visible_reply = entry[1]
        if visible_reply.startswith('<audio'):
            if params['show_text']:
                reply = shared.history['internal'][i][1]
                shared.history['visible'][i] = [shared.history['visible'][i][0], f"{visible_reply.split('</audio>')[0]}</audio>\n\n{reply}"]
            else:
                shared.history['visible'][i] = [shared.history['visible'][i][0], f"{visible_reply.split('</audio>')[0]}</audio>"]
    return chat_html_wrapper(shared.history['visible'], name1, name2, mode)

def input_modifier(string):
    """
    This function is applied to your text inputs before
    they are fed into the model.
    """
    if shared.is_chat() and len(shared.history['internal']) > 0:
        shared.history['visible'][-1] = [shared.history['visible'][-1][0], shared.history['visible'][-1][1].replace('controls autoplay>', 'controls>')]

    shared.processing_message = "*Is recording a voice message...*"
    shared.args.no_stream = True

    return string


def output_modifier(string):
    """
    This function is applied to the model outputs.
    """

    global params, wav_idx, user, user_info

    if not params['activate']:
        return string
    elif user_info is None:
        return string

    string = remove_surrounded_chars(string)
    string = string.replace('"', '')
    string = string.replace('“', '')
    string = string.replace('*', '.')
    string = string.replace('\n', ' ')
    string = string.strip()

    original_string = string
    string = tts_preprocessor.preprocess(string)

    if string == '':
        string = 'empty reply, try regenerating'
    else:
        output_file = Path(f'extensions/elevenlabs_tts/outputs/{shared.character}_{int(time.time())}.wav')
        voice = user.get_voices_by_name(params['selected_voice'])[0]
        audio_data = voice.generate_audio_bytes(string)
        save_bytes_to_path(Path((f'extensions/elevenlabs_tts/{shared.character}_{int(time.time())}.wav')), audio_data)
       
        autoplay = 'autoplay' if params['autoplay'] else ''
        string = f'<audio src="file/{output_file.as_posix()}" controls {autoplay}></audio>'
        if params['show_text']:
            string += f'\n\n{original_string}'
    
    return string


def ui():

    # Gradio elements
    with gr.Row():
        activate = gr.Checkbox(value=params['activate'], label='Activate TTS')
        autoplay = gr.Checkbox(value=params['autoplay'], label='Play TTS automatically')
        show_text = gr.Checkbox(value=params['show_text'], label='Show message text under audio player')
        connection_status = gr.Textbox(value='Disconnected', label='Connection Status')
        
    voice = gr.Dropdown(value=params['selected_voice'], choices=initial_voice, label='TTS Voice')
    with gr.Row():
        api_key = gr.Textbox(placeholder="Enter your API key.", label='API Key')
        connect = gr.Button(value='Connect')  
        
        
        
    show_text.change(lambda x: params.update({"show_text": x}), show_text, None)    
    show_text.change(toggle_text_in_history, [shared.gradio[k] for k in ['name1', 'name2', 'mode']], shared.gradio['display'])
    show_text.change(lambda: chat.save_history(timestamp=False), [], [], show_progress=False)

    # Event functions to update the parameters in the backend
    activate.change(lambda x: params.update({'activate': x}), activate, None)
    autoplay.change(lambda x: params.update({"autoplay": x}), autoplay, None)
    voice.change(lambda x: params.update({'selected_voice': x}), voice, None)
    api_key.change(lambda x: params.update({'api_key': x}), api_key, None)
    connect.click(check_valid_api, [], connection_status)
    connect.click(refresh_voices, [], voice)