import datetime, re, time, traceback
import twitter
import Utils

REGEX_TWITTERURL = re.compile(
    "https?://(?:www\.)?twitter.com/[^/]+/status/(\d+)", re.I)

class Module(object):
    def __init__(self, bot):
        self.bot = bot
        bot.events.on("received").on("command").on("twitter", "tw"
            ).hook(self.twitter, help="Find a tweet")

    def make_timestamp(self, s):
        seconds_since = time.time()-datetime.datetime.strptime(s,
            "%a %b %d %H:%M:%S %z %Y").timestamp()
        since, unit = Utils.time_unit(seconds_since)
        return "%s %s ago" % (since, unit)

    def twitter(self, event):
        api_key = self.bot.config["twitter-api-key"]
        api_secret = self.bot.config["twitter-api-secret"]
        access_token = self.bot.config["twitter-access-token"]
        access_secret = self.bot.config["twitter-access-secret"]

        if event["args"]:
            target = event["args"]
        else:
            target = event["log"].find(REGEX_TWITTERURL)
            if target:
                target = target.message
        if target:
            twitter_object = twitter.Twitter(auth=twitter.OAuth(
                access_token, access_secret, api_key, api_secret))
            url_match = re.search(REGEX_TWITTERURL, target)
            if url_match or target.isdigit():
                tweet_id = url_match.group(1) if url_match else target
                try:
                    tweet = twitter_object.statuses.show(id=tweet_id)
                except:
                    traceback.print_exc()
                    tweet = None
            elif target.startswith("@"):
                try:
                    tweet = twitter_object.statuses.user_timeline(
                        screen_name=target[1:], count=1)[0]
                except:
                    traceback.print_exc()
                    tweet = None
            if tweet:
                username = "@%s" % tweet["user"]["screen_name"]
                if "retweeted_status" in tweet:
                    original_username = "@%s" % tweet["retweeted_status"
                        ]["user"]["screen_name"]
                    original_text = tweet["retweeted_status"]["text"]
                    retweet_timestamp = self.make_timestamp(tweet[
                        "created_at"])
                    original_timestamp = self.make_timestamp(tweet[
                        "retweeted_status"]["created_at"])
                    event["stdout"].write("(%s (%s) retweeted %s (%s)) %s" % (
                        username, retweet_timestamp,
                        original_username, original_timestamp, original_text))
                else:
                    event["stdout"].write("(%s, %s) %s" % (username,
                        self.make_timestamp(tweet["created_at"]), tweet["text"]))
            else:
                event["stderr"].write("Invalid tweet identifiers provided")
        else:
            event["stderr"].write("No tweet provided to get information about")