#!/usr/bin/env python

cmd = ""
arg = ""

#COMMAND LINE ARGUMENTS HANDLING
import sys
args = sys.argv
num_args = len(args)

#Set cmd
if num_args>1:
    cmd = args[1]
#Set arg
if num_args>2:
    arg = " ".join(args[2:])

#Help
if cmd=="--help" or cmd=="-h" or cmd=="help":
    print """USAGE:
    eel [OPTION] [ARGS]
    eel --help

DESCRIPTION:
    Lists lines submitted by users in chronological order.

USAGE:
  eel new|news
        Lists all eels in chronological order.
  eel add
        Prompts you for the LINE to add to your eels.
  eel add LINE
        Adds LINE to your eels.
  eel user
        Prompts you for a USERNAME, then lists all their eels.
  eel user USERNAME
        Lists all eels added by USERNAME
  eel users
        Lists all users with eels.
  eel --help
        Prints this help message.
    """
    sys.exit()
elif cmd == "":
    import random
    slogans = ["Eloquent Elegant Lines",
    "Emote Extraordinary Love",
    "Expect Empty Lines",
    "Every Emotion Lingers",
    "Extra Entropic Lines",
    "Ever-Endemic Lexicon",
    "Esperanto Effects Life",
    "Evolutionary Egalitarian Lineage",
    "Excellent Every Line",
    "Elegant Each Line",
    "The shortened version of FEELS",
    "Electronic Envelope Letters",
    "Enticing Entropic Lines",
    "Epic Esoteric Lore",
    "Entheogen Engulfed Lollipops",
    "Ent's Eternal Light",
    "Evaporate Extra Liquids",
    "Enigmatic Empathetic Lore"]
    slogan = slogans[random.randint(0,len(slogans)-1)]
    print """
    
______________________
|   ____ ____ _      |
|   |___ |___ |      | Welcome to EEL!
|   |___ |___ |___   | %s
|   Engine 1.0       | The short and sweet line sharing program.
|____________________| 

COMMANDS:
  <nothing>
        Lists all eels in chronological order.
  add
        Prompts you for the LINE to add to your eels.
  add LINE
        Adds LINE to your eels.
  user
        Prompts you for a USERNAME, then lists all their eels.
  user USERNAME
        Lists all eels added by USERNAME
  users
        Lists all users with eels.
    """%slogan
    cmd = raw_input("Command: ")
    cmd_arr = cmd.split(" ")

    if len(cmd_arr)>1:
        cmd = cmd_arr[0]
        arg = " ".join(cmd_arr[1:]).strip()

import popen2
import pydoc

if cmd == "add":
    line = ""
    if arg=="":
        line = raw_input("\nType the line you want to add:\n")
    else:
        line = arg
    username_file = popen2.popen2("whoami")[0]
    username = username_file.readlines()[0].strip()
    line = "~"+username+": "+line
    username_file.close()
    popen2.popen2("echo %s >> eels" % str(line))
    print "\neel added..."
elif cmd == "user":
    username = ""
    if arg=="":
        username = raw_input("\nWhat username?\n")
    else:
        username = arg
    users_file = popen2.popen2("cat eels | grep -i ^~%s:"%username)
    users = "\n".join(users_file[0].readlines())
    print("")
    if len(users)>0:
        pydoc.pager(users)
    else:
        print "That user has not posted, or does not exist."
    users_file[0].close()
elif cmd == "users":
    usernames = []
    users_file = popen2.popen2("cat eels")# | grep -i ^~.*:")#***need to figure out how to regex this correctly
    users = users_file[0].readlines()
    for u in users:
        usernames.append(u[1:u.index(':')].strip())
    users_file[0].close()
    usernames = list(set(usernames))
    print ""
    print "  ".join(usernames)
elif cmd == "psst":
    line = ""
    if len(arg)==0:
        line = raw_input("\nType the line you want to add:\n")
    else:
        line = arg
    print "\neel added anonymously..."
    line = "~: "+line
    popen2.popen2("echo %s >> eels" % str(line))
elif cmd=="anon":
    print "\nLists only lines without usernames.\n"
    users_file = popen2.popen2("cat eels | grep -i ^~:")
    users = "\n".join(users_file[0].readlines())
    if len(users)>0:
        pydoc.pager(users)
    else:
        print "No anonymously posted lines, yet."
    users_file[0].close()
elif cmd == "new" or cmd == "news" or cmd == "":
    whole_file = popen2.popen2("cat eels | less")
    all_lines = "\n".join(whole_file[0].readlines())
    pydoc.pager(all_lines)
    whole_file[0].close()
else:
    print "\nCommand not found."

#One file.
#Uses 'echo "blah blah blah>>eel"'
"""

        [  0 ] add an eel
        [  1 ] view your eels
        [  2 ] view other's eels
        [  3 ] global eels

"""









titles = ["Elegant Every Line",
"Elegantly Eloquent Lines",
"Elaborately Entropic Lines",
"Enlightenment Every Line",
"Everyone Enjoys Lines"]

"""enjoy everyones line sharing
entirely exhibitionist line sharing
everyones expressive line sharing
erradicating extremism line sharing
expediated expression line sharing
expertly eclectic line sharing
excruciatingly essential line sharing
excruciatingly enlightening line sharing
emboldening enlightening line sharing
elegant eloquent line sharing
enticing encouraging line sharing
eclectically emoted line sharing
ecstatically elating line sharing
elegantly easy line sharing"""