#!/usr/bin/env python3

import sys
import os
from datetime import datetime
import subprocess
import parsedatetime

import due

PRIORITY = "(B)"

if len(sys.argv) < 2:
    print("Not enough args!")
    exit(0)

if sys.argv[1] == "usage":
    print("    hw\n"
          "      list homework\n"
          "    hw rel\n"
          "      list assignments with the dates in days relative to today\n"
          "    hw due [date]\n"
          "      list assignments due on [date]\n"
          "    hw add\n"
          "      prompt for adding an assignment\n"
          "    hw add [due date] [class] [description]\n"
          "      add an assignment without a prompt\n")
    exit(0)

if len(sys.argv) < 3 or sys.argv[2] == "due": #default case
    due.due("+hw")
elif sys.argv[2] == "rel":
    due.due("+hw", True)
elif sys.argv[2] == "add":
    if len(sys.argv) == 3: #prompt
        c = input("Class")
        date = input("Date")
        desc = input("Assignment")
        due.add(date, "{} +hw class:{} {}".format(PRIORITY, c, desc))
    elif len(sys.argv) >= 6:
        print(sys.argv[3:])
        due.add(sys.argv[3],
                "{} +hw class:{} {}".format(PRIORITY,
                                            sys.argv[4],
                                            " ".join(sys.argv[5:])))
else:
    print("Invalid args")