from yaml import dump

import main
from modules import alias


class AliasCommand:
    def __init__(self, *args):
        self.alias(*args)

    def alias(self, addr, authed, data, obj, spl, success, failure, info, incUsage, length):
        if authed:
            if length == 1:
                info(dump(main.alias))
                return
            elif length == 3:
                if spl[1] == "add":
                    if not spl[2].isdigit():
                        failure("Must be a number, not %s" % spl[2])
                        return
                    num = int(spl[2])
                    for i in range(num):
                        if len(main.alias.keys()) == 0:
                            nextNum = 1
                        else:
                            nextNum = max(main.alias.keys()) + 1
                        main.alias[nextNum] = alias.generate_alias()
                        success("Generated new alias: %i" % nextNum)
                    main.saveConf("alias")
                    return
                elif spl[1] == "del":
                    if not spl[2].isdigit():
                        failure("Must be a number, not %s" % spl[2])
                        return
                    num = int(spl[2])
                    if num not in main.alias.keys():
                        failure("No such alias: %i" % num)
                        return
                    failed = False
                    for i in main.network.keys():
                        if num in main.network[i].aliases.keys():
                            failure("Alias in use by %s" % i)
                            failed = True
                    if failed:
                        return
                    del main.alias[num]
                    success("Removed alias: %i" % num)
                    main.saveConf("alias")
                    return
            else:
                incUsage("alias")
                return
        else:
            incUsage(None)