#!/usr/bin/env python2
# -*- coding: utf-8 -*-
"""
Created on Fri Sep 14 21:02:42 2018

@author: jbuisine
"""

from __future__ import print_function
import os, glob, image_slicer
from PIL import Image

# show to create own dataset https://gist.github.com/fchollet/0830affa1f7f19fd47b06d4cf89ed44d

NUMBER_SUB_IMAGES = 100

def init_directory():
    if not os.path.exists('data'):

        os.makedirs('data/train/final')
        os.makedirs('data/train/noisy')

        os.makedirs('data/validation/final')
        os.makedirs('data/validation/noisy')

def create_images(folder, output_folder):
    images_path = glob.glob(folder + "/*.png")

    for img in images_path:
        image_name = img.replace(folder, '').replace('/', '')
        tiles = image_slicer.slice(img, NUMBER_SUB_IMAGES, save = False)
        image_slicer.save_tiles(tiles, directory=output_folder, prefix='part_'+image_name)

def generate_dataset():
    create_images('img_train/final', 'data/train/final')
    create_images('img_train/noisy', 'data/train/noisy')
    create_images('img_validation/final', 'data/validation/final')
    create_images('img_validation/noisy', 'data/validation/noisy')

def main():

    init_directory()

    # create database using img folder (generate first time only)
    generate_dataset()

if __name__== "__main__":
    main()