#--depends-on commands
#--depends-on format_activity

import time
from src import ModuleManager, utils

class Module(ModuleManager.BaseModule):
    def _change_seen(self, channel, user, action):
        user.set_setting("seen", time.time())
        channel.set_user_setting(user.get_id(), "seen-info", {"action": action})

    @utils.hook("formatted.message.channel")
    @utils.hook("formatted.notice.channel")
    def on_formatted(self, event):
        line = event["minimal"] or event["line"]

        if not event["server"].is_own_nickname(event["user"].nickname):
            self._change_seen(event["channel"], event["user"], line)

    @utils.hook("received.command.seen")
    @utils.kwarg("help", "Find out when a user was last seen")
    @utils.spec("!<nickname>ouser")
    def seen(self, event):
        user = event["spec"][0]
        seen_seconds = user.get_setting("seen")

        if seen_seconds:
            seen_info = None
            if event["is_channel"]:
                seen_info = event["target"].get_user_setting(
                    user.get_id(), "seen-info", None)
                if seen_info:
                    seen_info = " (%s%s)" % (seen_info["action"],
                        utils.consts.RESET)

            since = utils.datetime.format.to_pretty_since(
                time.time()-seen_seconds, max_units=2)
            event["stdout"].write("%s was last seen %s ago%s" % (
                user.nickname, since, seen_info or ""))
        else:
            event["stderr"].write("I have never seen %s before." % (
                user.nickname))