# reads folder
# finds missing folders from last_done
# gets images, checks image types
# build markdown for entries
## TO DO:
# [X] find last entry for me
# [X] insert new entries in propper place
# [ ] insert docstrings as text on .md file

from os import listdir
from os.path import isfile, join

from helpers import get_image_files, build_entry

YEAR = "2020"
base_path = "/media/villares/VolumeD/GitHub/sketch-a-day"
year_path = join(base_path,YEAR)
folders = listdir(year_path)
readme_path = join(base_path, 'README.md')

# open the readme markdown index
with open(readme_path, 'rt') as readme:
    lines = readme.readlines()   
# find date of the first image    
imagens = (line[line.find(YEAR):line.find(']')]
               for line in lines
               if '![' in line)
last_done = next(imagens)[:10]
# find folders after the last_done
new_folders = []
for f in reversed(folders):
    if last_done not in f:
        new_folders.append(f)        
    else:
        break
# find insertion point
for insert_point, line in enumerate(lines):
    if last_done in line:
        break
# iterate on new folders
for name in reversed(new_folders):
    imgs = get_image_files(year_path, name)
    if imgs:  # insert entry if matching image found
        lines.insert(insert_point - 3,
                     build_entry(imgs[0], YEAR))
        print('adding: '+ name)
# overwrite the readme markdown index
with open(readme_path, 'wt') as readme:
    content = "".join(lines)
    readme.write(content)