import lzma
import re

months = {'01': 'January', '02': 'February', '03': 'March', 
    '04': 'April', '05': 'May', '06': 'June',
    '07': 'July', '08': 'August', '09': 'September',
    '10': 'October', '11': 'November', '12': 'December'}


def dayToWord(day):
    day = int(day)
    if day > 3:
        return str(day) + 'th'
    elif day == 3:
        return str(day) + 'rd'
    elif day == 2 :
        return str(day) + 'nd'
    else: return str(day) + 'st'

def numToWord(number):
    number = int(number)
    d = {1 : 'one', 2 : 'two', 3 : 'three', 4 : 'four', 5 : 'five',
        6 : 'six', 7 : 'seven', 8 : 'eight', 9 : 'nine', 10 : 'ten',
        11 : 'eleven', 12 : 'twelve', 13 : 'thirteen', 14 : 'fourteen',
        15 : 'fifteen', 16 : 'sixteen', 17 : 'seventeen', 18 : 'eighteen',
        19 : 'nineteen', 20 : 'twenty',
        30 : 'thirty', 40 : 'forty', 50 : 'fifty', 60 : 'sixty',
        70 : 'seventy', 80 : 'eighty', 90 : 'ninety' }
    if number < 20:
        return d[number]
    else:
        if number % 10 == 0: return d[number]
        else: return d[number // 10 * 10] + '-' + d[number % 10]

def labelJurisdiction(text, jurisdiction):
    jurisdictions = []
    for match in re.finditer(jurisdiction, text):
        tup = (match.start(), match.end(), 'JURISDICTION')
        jurisdictions.append(tup)
    return jurisdictions

def labelEffectiveDate(text, date):
    dates = []
    year, month, day = date.split('-')
    
    dateFormats = [month + '/' + day + '/' + year,
        month + '/' + day + '/' + year[-2:], 
        month[1] + '/' + day + '/' + year, 
        month[1] + '/' + day[1] + '/' + year, 
        month[1] + '/' + day + '/' + year[-2:], 
        month[1] + '/' + day[1] + '/' + year[-2:],
        dayToWord(day) + ' of ' + months[month] + ', ' + year,
        dayToWord(day) + ' day of ' + months[month] + ', ' + year,
        months[month] + ' ' + day + ', ' + year ]

    for format in dateFormats:
        for match in re.finditer(format, text, flags=re.IGNORECASE):
            tup = (match.start(), match.end(), 'EFFECTIVE_DATE')
            dates.append(tup)

    return dates

def labelParties(text, party):
    parties = []
    if 'Inc' in party:
        regular = ''
        for word in party.split('_'):
            regular += word + '(.*)'
        party = regular
    party = party.replace('_', ' ')
    for match in re.finditer(party, text, flags=re.IGNORECASE):
        tup = (match.start(), match.end(), 'PARTY')
        parties.append(tup)
    return parties

def labelTerms(text, term):
    terms = []
    term = term.split('_')
    number = numToWord(term[0])
    units = term[1]
    for match in re.finditer(number + ' ' + units, text, flags=re.IGNORECASE):
        tup = (match.start(), match.end(), 'TERM')
        terms.append(tup)
    return terms


if __name__ == '__main__':
    # Read NDAs with lzma
    NDAs = []
    with lzma.open('train/in.tsv.xz') as f:
        for line in f:
            NDAs.append(line.decode('utf-8'))

    # Read expected information
    expected = []
    with open('train/expected.tsv') as f:
        for line in f:
            expected.append(line.replace('\n', ''))
    
    # Expected to labeled entities
    expectEntities = []
    for expect in expected:
        entities = []
        for e in expect:
            label, entity = e.split('=')
            entities.append((label, entity))
        expectEntities.append(entities)


    # Training data for Spacy
    trainData =[]
    for i in range(len(expectEntities)):
        listOfEntities = []
        for entity in expectEntities[i]:
            if entity[0] == 'effective_date':
                listOfEntities.append(labelEffectiveDate(NDAs[i], entity[1]))
            elif entity[0] == 'jurisdiction':
                listOfEntities.append(labelJurisdiction(NDAs[i], entity[1]))
            elif entity[0] == 'party':
                listOfEntities.append(labelParties(NDAs[i], entity[1]))
            else: listOfEntities.append(labelTerms(NDAs[i], entity[1]))
        listOfEntities = [item for sublist in listOfEntities for item in sublist]
        trainData.append((NDAs[i], {'entities': listOfEntities}))