"""
This file contains commands that require special permissions to use. These
are generally @-prefixed commands, but there are exceptions.
"""
from src.objects.models import Object
from src import defines_global
from src import ansi
from src import session_mgr
from src.util import functions_general

def cmd_reload(command):
    """
    Reloads all modules.
    """
    command.source_object.emit_to("To be implemented...")

def cmd_boot(command):
    """
    Boot a player object from the server.
    """
    source_object = command.source_object
    switch_quiet = False
    switch_port = False

    if "quiet" in command.command_switches:
        # Don't tell the player they've been disconnected, silently boot them.
        switch_quiet = True

    if "port" in command.command_switches:
        # Boot by port number instead of name or dbref.
        switch_port = True

    if not command.command_argument:
        source_object.emit_to("Who would you like to boot?")
        return
    else:
        boot_list = []
        if switch_port:
            # Boot a particular port.
            sessions = session_mgr.get_session_list(True)
            for sess in sessions:
                # Find the session with the matching port number.
                if sess.getClientAddress()[1] == int(command.command_argument):
                    boot_list.append(sess)
                    # Match found, kill the loop and continue with booting.
                    break
        else:
            # Grab the objects that match
            objs = Object.objects.local_and_global_search(source_object, 
                                                    command.command_argument)
            
            if not objs:
                source_object.emit_to("No name or dbref match found for booting.")
                return

            if not objs[0].is_player():
                source_object.emit_to("You can only boot players.")
                return

            if not source_object.controls_other(objs[0]):
                if objs[0].is_superuser():
                    source_object.emit_to("You cannot boot a Wizard.")
                    return
                else:
                    source_object.emit_to("You do not have permission to boot that player.")
                    return

            if objs[0].is_connected_plr():
                matches = session_mgr.sessions_from_object(objs[0])
                for match in matches:
                    boot_list.append(match)
            else:
                source_object.emit_to("That player is not connected.")
                return

        if not boot_list:
            source_object.emit_to("No matches found.")
            return
        
        # Carry out the booting of the sessions in the boot list.
        for boot in boot_list:
            if not switch_quiet:
                boot.msg("You have been disconnected by %s." % (source_object.name))
            boot.disconnectClient()
            session_mgr.remove_session(boot)
            return

def cmd_newpassword(command):
    """
    Set a player's password.
    """
    source_object = command.source_object
    eq_args = command.command_argument.split('=', 1)
    searchstring = eq_args[0]
    newpass = eq_args[1]
    
    if not command.command_argument or len(searchstring) == 0:    
        source_object.emit_to("What player's password do you want to change")
        return
    if len(newpass) == 0:
        source_object.emit_to("You must supply a new password.")
        return

    target_obj = source_object.search_for_object(searchstring)
    # Use search_for_object to handle duplicate/nonexistant results.
    if not target_obj:
        return

    if not target_obj.is_player():
        source_object.emit_to("You can only change passwords on players.")
    elif not source_object.controls_other(target_obj):
        source_object.emit_to("You do not control %s." % (target_obj.get_name(),))
    else:
        uaccount = target_obj.get_user_account()
        if len(newpass) == 0:
            uaccount.set_password()
        else:
            uaccount.set_password(newpass)
        uaccount.save()
        source_object.emit_to("%s - PASSWORD set." % (target_obj.get_name(),))
        target_obj.emit_to("%s has changed your password." % 
                           (source_object.get_name(show_dbref=False),))

def cmd_shutdown(command):
    """
    Shut the server down gracefully.
    """    
    command.source_object.emit_to('Shutting down...')
    print 'Server shutdown by %s' % (command.source_object.get_name(show_dbref=False),)
    command.session.server.shutdown()