from src import ModuleManager, utils

CHANNELSET_HELP = "Get a specified channel setting for the current channel"
CHANNELSETADD_HELP = ("Add to a specified channel setting for the "
    "current channel")

class Module(ModuleManager.BaseModule):
    def _set(self, category, event, target, array):
        settings = self.exports.get_all(category)
        settings_dict = dict([(setting["setting"], setting
            ) for setting in settings])

        if len(event["args_split"]) > 1:
            setting = event["args_split"][0].lower()
            if setting in settings_dict:
                value = " ".join(event["args_split"][1:])
                value = settings_dict[setting].get("validate",
                    lambda x: x)(value)

                if not value == None:
                    if array:
                        current_value = target.get_setting(setting, [])
                        current_value.append(value)
                        target.set_setting(setting, current_value)
                    else:
                        target.set_setting(setting, value)

                    self.events.on("set").on(category).on(setting).call(
                        value=value, target=target)

                    event["stdout"].write("Saved setting")
                else:
                    event["stderr"].write("Invalid value")
            else:
                event["stderr"].write("Unknown setting")
        elif len(event["args_split"]) == 1:
            event["stderr"].write("Please provide a value")
        else:
            shown_settings = [key for key, value in settings_dict.items()
                    if not value.get("hidden", False)]
            event["stdout"].write("Available settings: %s" % (
                ", ".join(shown_settings)))

    @utils.hook("received.command.set", help="Set a specified user setting")
    @utils.hook("received.command.setadd",
        help="Add to a specified user setting")
    def set(self, event):
        """
        :usage: <setting> <value>
        """
        self._set("set", event, event["user"], event["command"]=="setadd")

    @utils.hook("received.command.channelset", channel_only=True,
        require_mode="o", help=CHANNELSET_HELP)
    @utils.hook("received.command.channelsetoverride", channel_only=True,
        permission="channelsetoverride", help=CHANNELSET_HELP)
    @utils.hook("received.command.channelsetadd", channel_only=True,
        require_mode="o", help=CHANNELSETADD_HELP)
    @utils.hook("received.command.channelsetaddoverride", channel_only=True,
        permission="channelsetoverride", help=CHANNELSETADD_HELP)
    def channel_set(self, event):
        """
        :usage: <setting> <value>
        """
        self._set("channelset", event, event["target"], False,
            event["command"].startswith("channelsetadd"))

    @utils.hook("received.command.serverset",
        help="Set a specified server setting for the current server")
    @utils.hook("received.command.serversetadd",
        help="Add to a specified server setting for the current server")
    def server_set(self, event):
        """
        :usage: <setting> <value>
        :permission: serverset
        """
        self._set("serverset", event, event["server"],
            event["command"]="serversetadd")

    @utils.hook("received.command.botset", help="Set a specified bot setting")
    @utils.hook("received.command.botsetadd",
        help="Add to a specified bot setting")
    def bot_set(self, event):
        """
        :help: Set a specified bot setting
        :usage: <setting> <value>
        :permission: botset
        """
        self._set("botset", event, self.bot, False,
            event["command"]=="botsetadd")

    def _get(self, event, setting, qualifier, value):
        if not value == None:
            if array:
                value = ", ".join(value)
            event["stdout"].write("'%s'%s: %s" % (setting,
                qualifier, str(value)))
        else:
            event["stdout"].write("'%s' has no value set" % setting)

    @utils.hook("received.command.get", min_args=1)
    def get(self, event):
        """
        :help: Get a specified user setting
        :usage: <setting>
        """
        setting = event["args_split"][0]
        self._get(event, setting, "", event["user"].get_setting(
            setting, None))

    @utils.hook("received.command.channelget", channel_only=True, min_args=1)
    def channel_get(self, event):
        """
        :help: Get a specified channel setting for the current channel
        :usage: <setting>
        :require_mode: o
        """
        setting = event["args_split"][0]
        self._get(event, setting, " for %s" % event["target"].name,
            event["target"].get_setting(setting, None))

    @utils.hook("received.command.serverget", min_args=1)
    def server_get(self, event):
        """
        :help: Get a specified server setting for the current server
        :usage: <setting>
        :permission: serverget
        """
        setting = event["args_split"][0]
        self._get(event, setting, "", event["server"].get_setting(
            setting, None))

    @utils.hook("received.command.botget", min_args=1)
    def bot_get(self, event):
        """
        :help: Get a specified bot setting
        :usage: <setting>
        :permission: botget
        """
        setting = event["args_split"][0]
        self._get(event, setting, "", self.bot.get_setting(setting, None))