#!/usr/bin/python3
# -*- coding: utf-8 -*-

import json
import requests
import sys
import host
import time
import codecs

BUFFER_SIZE = 500
LEAVE_OUT = 1 # that does not leave out anything

address = 'http://'+host.concordia_host
if len(host.concordia_port) > 0:
    address += ':'+host.concordia_port
headers = {"content-type" : "application/json;charset=UTF-8" }



def file_len(fname):
    with open(fname) as f:
        for i, l in enumerate(f):
            pass
    return i + 1

def add_examples(examplesData):
    response = requests.post(address, data=json.dumps(examplesData, ensure_ascii=False).encode('utf-8'), headers=headers).json()
    if response['status'] == 'error':
        raise Exception(response['message'])

if len(sys.argv) != 9:
    raise Exception("wrong number of arguments")

name = sys.argv[1]
sourceFile = sys.argv[2]
lemmatizedSourceFile = sys.argv[3]
sourceLangId = int(sys.argv[4])
targetFile = sys.argv[5]
targetLangId = int(sys.argv[6])
alignmentsFile = sys.argv[7]
sourceIdsFile = sys.argv[8]

sourceFileLength = file_len(sourceFile)
lemmatizedSourceFileLength = file_len(lemmatizedSourceFile)
targetFileLength = file_len(targetFile)
alignmentsFileLength = file_len(alignmentsFile)
sourceIdsFileLength = file_len(sourceIdsFile)

if not (sourceFileLength == lemmatizedSourceFileLength and lemmatizedSourceFileLength == targetFileLength and targetFileLength == alignmentsFileLength and alignmentsFileLength == sourceIdsFileLength):
    print("File lengths:")
    print("source file: %d\nlemmatized source file: %d\ntarget file: %d\nalignments file: %d\nsource ids file: %d" % (sourceFileLength, lemmatizedSourceFileLength, targetFileLength, alignmentsFileLength, sourceIdsFileLength))
    raise Exception("files are not of the same length!")

totalExamples = sourceFileLength / LEAVE_OUT

data = {
    'operation': 'addTm',
    'sourceLangId':sourceLangId,
    'targetLangId':targetLangId,
    'name':name,
    'tmLemmatized':True
}

response = requests.post(address, json=data, headers=headers).json()
print(response)
tmId = int(response['newTmId'])
print("Added new tm: %d" % tmId)

data = {
    'operation': 'addSentences',
    'tmId':tmId
}

examples = []
start = time.time()
with codecs.open(sourceFile, "r", "utf-8", errors='replace') as source_file, codecs.open(lemmatizedSourceFile, "r", "utf-8", errors='replace') as lemmatized_source_file, codecs.open(targetFile, "r", "utf-8", errors='replace') as target_file, open(alignmentsFile) as alignments_file, open(sourceIdsFile) as source_ids_file:
    addedCount = 0
    for lineNumber in range(sourceFileLength):
        if lineNumber % LEAVE_OUT == 0:
            sourceSentence = source_file.readline().strip()
            lemmatizedSourceSentence = lemmatized_source_file.readline().strip()
            targetSentence = target_file.readline().strip()
            alignment = json.loads(alignments_file.readline().strip())
            sourceId = int(source_ids_file.readline().strip())

            examples.append([sourceSentence, lemmatizedSourceSentence, targetSentence, alignment, sourceId])
            addedCount += 1
            if len(examples) >= BUFFER_SIZE:
                data['examples'] = examples
                add_examples(data)
                mark = time.time()
                print("Added %d of %d lemmatized examples. Time elapsed: %.4f s, current speed: %.4f examples/second" % (addedCount, totalExamples, mark-start, addedCount/(mark-start)))
                examples = []


if len(examples) > 0:
    data['examples'] = examples
    add_examples(data)

end = time.time()
print("Added all %d lemmatized sentences. Time elapsed: %.4f s, overall speed: %.4f sentences/second" % (addedCount, end-start, addedCount/(end-start)))

print("Generating index...")
start = time.time()
data = {
    'operation': 'refreshIndex',
    'tmId' : tmId
}
requests.post(address, json=data, headers=headers)

end = time.time()
print("Index regeneration complete. The operation took %.4f s" % (end - start))