import logging
from threading import Thread
import os
from datetime import datetime

from main import socketio
from dataset.clip_generator import clip_generator, extend_dataset
from dataset.forced_alignment.align import align


class SocketIOHandler(logging.Handler):
    def emit(self, record):
        text = record.getMessage()
        if text.startswith("Progress"):
            text = text.split("-")[1]
            current, total = text.split("/")
            socketio.emit("progress", {"number": current, "total": total}, namespace="/voice")
        elif text.startswith("Status"):
            socketio.emit("status", {"text": text.replace("Status -", "")}, namespace="/voice")
        else:
            socketio.emit("logs", {"text": text}, namespace="/voice")


# Data
logging.basicConfig(level=logging.INFO)
logger = logging.getLogger("voice")
logger.addHandler(SocketIOHandler())
thread = None


def create_dataset(text_path, audio_path, forced_alignment_path, output_path, label_path, logging):
    align(audio_path, text_path, forced_alignment_path, logging=logging)
    clip_generator(audio_path, forced_alignment_path, output_path, label_path, logging=logging)


def extend_existing_dataset(text_path, audio_path, forced_alignment_path, output_path, label_path, prefix, logging):
    assert os.path.isdir(output_path), "Missing existing dataset clips folder"
    assert os.path.isfile(label_path), "Missing existing dataset metadata file"
    align(audio_path, text_path, forced_alignment_path, logging=logging)
    extend_dataset(audio_path, forced_alignment_path, output_path, label_path, prefix, logging=logging)


def background_task(func, **kwargs):
    exception = False
    try:
        socketio.sleep(5)
        func(logging=logger, **kwargs)
    except Exception as e:
        socketio.emit("error", {"text": str(e)}, namespace="/voice")
        exception = True
        print(e)

    if not exception:
        socketio.emit("done", {"text": None}, namespace="/voice")


def start_progress_thread(func, **kwargs):
    global thread
    print("Starting Thread")
    thread = socketio.start_background_task(background_task, func=func, **kwargs)


def get_next_url(urls, path):
    urls = list(urls.keys())
    next_url_index = urls.index(path) + 1
    return urls[next_url_index] if next_url_index < len(urls) else ""


def get_prefix():
    return datetime.now().strftime("%d-%m-%Y_%H-%M-%S")


# def check_running_thread(f):
#     @wraps(f)
#     def decorated_function(*args, **kwargs):
#         global thread
#         if thread.isAlive():
#             # request.files = None
#             # request.form = None
#             return redirect("https://www.google.co.uk/")
#         return f(*args, **kwargs)
#     return decorated_function