import string

p1 = (49.189787, -67.444574)
p2 = (24.660845, -67.444574)
p3 = (49.189787, -87.518395)
p4 = (24.660845, -87.518395)
p5 = (49.189787, -101.998892)
p6 = (24.660845, -101.998892)
p7 = (49.189787, -115.236428)
p8 = (24.660845, -115.236428)
p9 = (49.189787, -125.242264)
p10 = (24.660845, -125.242264)

latMax = 49.189787
latMin = 24.660845

easternLow = -87.518395
easternHigh = -67.444574
centralLow = -101.998892
centralHigh = -87.518395
mountainLow = -115.236428
mountainHigh = -101.998892
pacificLow = -125.242264
pacificHigh = -115.236428


keywordDict = {}
tuplesList = []

def compute_tweets(tweetFileInput, keywordFileInput):

    try:
        keywordFile = open(keywordFileInput, "r", encoding="utf-8")     # opens keywordFile if it exists
        for w in keywordFile:
            key, value = w.split(",")     # splits the words in the file
            keywordDict[key] = int(value)    # each word is assigned a value, ex: good = 7
        keywordFile.close()     # closes the file
    except IOError:     # when the file does not exists, this statement will run
        exit("An error occurred! File not found! ")

    try:
        tweetFile = open(tweetFileInput, "r", encoding="utf-8")     # opens tweetFile if it exists

        eastTweet = centralTweet = mountainTweet = pacificTweet = 0
        eastTotal = centralTotal = mountainTotal = pacificTotal = 0

        for line in tweetFile:
            tweet = 0     # initializing count and happyValue variables
            happyValue = 0
            line = line.lower()     # lowers and splits each line
            line = line.split()
            line[0] = float(line[0].strip("[").strip(","))     # strips the [ and , in the first part of the coordinate (latitude in this case)
            line[1] = float(line[1].strip("]"))                # strips the ] at the end of the longitude
            word = line[5:]    # from element 5 and beyond, the tweet begins
            for i in word:
                i = i.strip(string.punctuation)
                for word in keywordDict:
                    tweet = tweet + 1
                    happyValue = happyValue + keywordDict[word]
                if tweet == 0:
                    continue
                tweetTotal = happyValue / tweet      # average sentiment value


        if latMin <= float(line[0]) <= latMax and happyValue != 0:
            if easternLow < float(line[1]) <= easternHigh:
                eastTweet = eastTweet + 1
                eastTotal = eastTotal + tweetTotal

            elif centralLow < float(line[1]) <= centralHigh:
                centralTweet = centralTweet + 1
                centralTotal = centralTotal + tweetTotal

            elif mountainLow < float(line[1]) <= mountainHigh:
                mountainTweet = mountainTweet + 1
                mountainTotal = mountainTotal + tweetTotal

            elif pacificLow < float(line[1]) <= pacificHigh:
                pacificTweet = pacificTweet + 1
                pacificTotal = pacificTotal + tweetTotal

        tweetFile.close()       # end of file, close loop

        averageHappyValueEast = eastTotal/eastTweet
        averageHappyValueCent = centralTotal/centralTweet
        averageHappyValueMount = mountainTotal/mountainTweet
        averageHappyValuePac = pacificTotal/pacificTweet

        Eastern = (averageHappyValueEast, eastTweet, eastTotal)
        Central = (averageHappyValueCent, centralTweet, centralTotal)
        Mountain = (averageHappyValueMount, mountainTweet, mountainTotal)
        Pacific = (averageHappyValuePac, pacificTweet, pacificTotal)

        tuplesList.append(Eastern)
        tuplesList.append(Central)
        tuplesList.append(Mountain)
        tuplesList.append(Pacific)

        return tuplesList

    except IOError:
        exit("An error occurred! File not found! ")