''' Purpose: translate user text to English
'''
import url

def setup():
    # CS 1112 translation dictionary -- entries are of form: word,translation
    BABEL_FISH_URL = 'http://www.cs.virginia.edu/~cs1112/datasets/words/babelfish'

    # get contents of babel fish url
    dataset = url.get_dataset(BABEL_FISH_URL)

    # convert csv-based word mappings into dictionary format
    word_mappings = {}
    for entry in dataset:
        foreign, english = entry
        word_mappings[foreign] = english

    return word_mappings

DEFAULT_DICTIONARY = setup()

def glot( text, dictionary = DEFAULT_DICTIONARY):
    ''' returns a translation of text according to dictionary,
        where text may have embedded \n's
     '''

    text = text.split('\n') # split text into a list of lines

    txet = '' # empty string accumulator

    for row in text:
        # want something else to do translation

        wor = line( row, dictionary ) # call the line function on row to translate the line
        txet = txet + wor + '\n'  # add the translated line to the accumulator along with a line break

    return txet


def line( string, dictionary = DEFAULT_DICTIONARY ):
    ''' returns a translation of string,
        where string is composed of multiple words
    '''

    words = string.split() # split the string into a list of words

    sdrow = ''

    for w in words:
        m = word( w, dictionary) # call the word function to translate the word
        sdrow = sdrow + m + ' ' # add this to the accumulator

    return  sdrow


def word( string, dictionary = DEFAULT_DICTIONARY):
    ''' returns a translation of the word string,
        if the translation is unknown return string within <>
    '''

    if ( string in dictionary ):
        result = dictionary.get( string ) # translate the word

    else:
        result = '<' + string + '>'


    return result

# name is a built in python variable;
# it is set to main if you are running that program directly
# it is set to the name of the module if it is bein run as a module
if ( __name__ == '__main__' ):
    print( word( 'lapiz' ) )
    print( line( 'como esta' ) )
    print( glot( 'como esta\n hacer'))
#else:
   # print( __name__ )

# This was done in multiple functions because it is cleaner code
# allows for these actions to be repeated in the future