'''
char_gen.py

The basic character generation module. Allows accounts to create new characters
with basic selection for name, sex, and race.
'''
import mudsys, mud, socket, char, hooks



def check_char_name(arg):
    '''checks to make sure the character name is valid. Names are valid if they
       are greater than 2 characters, less than 13, and comprise only alpha
       characters.'''
    return len(arg) >= 3 and len(arg) <= 12 and arg.isalpha()

def cg_name_handler(sock, arg):
    if not check_char_name(arg):
        sock.send("Illegal name, please pick another.")
    elif mudsys.player_exists(arg):
        sock.send("A player with that name already exists.")
    elif mudsys.player_creating(arg):
        sock.send("A player is already being created with that name.")
    else:
        name = arg[0].upper() + arg[1:]
        ch = mudsys.create_player(name)

        if ch == None:
            sock.send("Illegal name, please pick another.")
        else:
            mudsys.attach_char_socket(ch, sock)
            ch.rdesc = ch.name + " is here."
            sock.pop_ih()

def cg_sex_handler(sock, arg):
    try:
        result = {
            'M' : 'male',
            'F' : 'female',
            'N' : 'neutral'
            }[arg[0].upper()]
        sock.ch.sex = result
        sock.pop_ih()
    except KeyError:
        sock.send("Invalid sex, try again.")

def cg_race_handler(sock, arg):
    if not mud.is_race(arg, True):
        sock.send("Invalid race selection, try again.")
    else:
        sock.ch.race = arg
        sock.pop_ih()

def cg_finish_handler(sock, arg):
    # pop our input handler for finishing character generation
    sock.pop_ih()

    # log that the character created
    mud.log_string("New player: " + sock.ch.name + " has entered the game.")

    # send them the motd
    sock.ch.page(mud.get_motd())

    # put him in the starting room
    sock.ch.room = mudsys.sys_getval("start_room")
    
    # run the init_player hook
    hooks.run("init_player", hooks.build_info("ch", (sock.ch,)))

    # register and save him to disk and to an account
    mudsys.do_register(sock.ch)
    
    # attach him to his account and save the accoutn
    sock.account.add_char(sock.ch)
    mudsys.do_save(sock.account)
    
    # make him look at the room
    sock.ch.act("look")

    # run our enter hook
    hooks.run("enter", hooks.build_info("ch rm", (sock.ch, sock.ch.room)))

def cg_name_prompt(sock):
    sock.send_raw("What is your character's name? ")

def cg_sex_prompt(sock):
    sock.send_raw("What is your sex (M/F/N)? ")

def cg_race_prompt(sock):
    sock.send("Available races are: ")
    sock.send(mud.list_races(True))
    sock.send_raw("\r\nPlease enter your choice: ")

def cg_finish_prompt(sock):
    sock.send_raw("{c*** Press enter to finish character generation:{n ")



################################################################################
# character generation hooks
################################################################################
def char_gen_hook(info):
    sock, = hooks.parse_info(info)
    sock.push_ih(mudsys.handle_cmd_input, mudsys.show_prompt)
    sock.push_ih(cg_finish_handler, cg_finish_prompt)
    sock.push_ih(cg_race_handler, cg_race_prompt)
    sock.push_ih(cg_sex_handler, cg_sex_prompt)
    sock.push_ih(cg_name_handler, cg_name_prompt)



################################################################################
# loading and unloading the module
################################################################################
hooks.add("create_character", char_gen_hook)

def __unload__():
    '''removes the hooks for character generation'''
    hooks.remove("create_character", char_gen_hook)