#!/usr/bin/env python
## CURSES BASIC-MAIL GUI 
#   This is the Basic-Mail program, a basic email client written in python
#   with a curses interface.
#
# To Run: Go to the Basic-Mail directory and type "python Basic-Mail.py",
#         without the quotes.
#         If it doesn't open, make sure that the size of the console window
#         is at least 80 x 30 pixels.
##
## Filename: files.py ##
#   This file contains functions that work with the save files.
##

## IMPORTS ##
import curses, curses.ascii, curses.panel  # Curses imports
import traceback, os, sys, select, string  # Random imports
from variables import *  # Imports all variables
from draw import *  # Imports the window drawing functions

## Function: Reads mail from the save file into an array
##           Returns that array
## Usage: mail = readmail()
def readmail():
    # Read mail into array from saved text file
    file = open(directory + "mail.txt", "rw+")  # Opens up mail text file
    data = file.read(-1)  # Reads it into a single string
    mail = []  # Creates an inbox array file for inbox data
    y = 0
    line = ''
    
    # Reads data in line by line until it is empty
    while data:
        # Reads in data by character into line
        line += data[0]
        data = data[1:]
        
        # Decide what to do with each line
        if data[0] == '\n':
            # Opens a new message
            if line == "250 Ok":
                mail.append([])  # Creates a new list in mail
                if len(mail) > 1:
                    y += 1
                line_num = 0
            else:
                line_num += 1
            # From:
            if line_num == 1:
                mail[y].append(line[6:])
            # To:
            elif line_num == 2:
                mail[y].append(line[4:])
            # Subject:
            elif line_num == 3:
                mail[y].append(line[9:])
            # First line of message
            elif line_num == 4:
                mail[y].append(line)
            # Rest of message added on to the same string
            elif line_num > 4:
                # Not really working: length checkers
                """
                if len(line) > 75:
                    mail[y][3] += '\n
                    mail[y][3] += line[:74]
                    mail[y][3] += '\n
                    mail[y][3] += line[74:]
                if len(line) > 150:
                    mail[y][3] += '\n
                    mail[y][3] += line[74:149]
                    mail[y][3] += '\n
                    mail[y][3] += line[149:]
                else:
                """
                mail[y][3] += '\n'
                mail[y][3] += line
            data = data[1:]
            line = ''
    file.close()
    return mail