"""

Builds a list of lines grouped by date and person

:return:

"""

message_dict = parser.parser(path_to_file)

date_list = sorted(message_dict.keys())

message_list = list()

last_sender = ""

alignment = True

# for readability later formatting has to happen, one person will be aligned left, one to the right.

# if field of the tupels in list is true it means message is to be aligned left, False -> to the right

for date in date_list:

year, month, day = readable_date(date)

message_list.append(('date', '[' + day + '.' + month + '.' + year + ']'))

daily_messages = message_dict[date]

for message in daily_messages:

new_sender = message[0]

if not last_sender == new_sender:

alignment = not alignment

last_sender = new_sender

message_list.append((alignment, message[1]))

""" In order to enter it to the empty postcard layout every line must be 40 chars and padded for readability.

:param message_list:

:return: list of 41 char strings

"""

formatted_list = list()

for tupel in message_list:

# if date, print in the middle

# check that it fitts in line

# check person and add padding

if isinstance(tupel[0], str):

line = ''

for _ in range(text_width):

line = line + ' '

formatted_list.append(line)

line = ' ' + tupel[1] + ' '

line = line[0:text_width]

formatted_list.append(line)

else:

words = tupel[1]

words = words.replace('_', ' ')

words = words.split(' ')

num_letters = 0

line = ''

message_line_split = list()

for word in words:

if len(word) >= (text_width - 4):

word = word[:(text_width - 4)]

if num_letters + len(word) <= (text_width - 4):

line = line + word + ' '

num_letters = num_letters + len(word) + 1

else :

message_line_split.append(line)

num_letters = len(word) + 1

line = word + ' '

message_line_split.append(line)

for message in message_line_split:

# for person one append a '->' and padd with whitespaces

if tupel[0] is True:

message = '->' + message

for _ in range(text_width):

message = message + ' '

formatted_list.append(message[:text_width])

# for person 2 put white space padding at the front and append '<-'

if tupel[0] is False:

message = message.rstrip(' ')

for _ in range((text_width - 2) - len(message)):

message = ' ' + message

message = message + '<-'

formatted_list.append(message)