# BudaPortaXmlConvert
# Version: 1.1
# License: GNU LGPLv3
# Maintainer: Peter Gyetvai - gyetpet@mailbox.org
# Repo: https://git.gyetvaipeter.hu/infeeeee/budaporta-xml

# ---------------------------------- import ---------------------------------- #

import sys
import xml.etree.ElementTree as ET
import csv
import datetime
import os


# ---------------------------------------------------------------------------- #
#                                   Function                                   #
# ---------------------------------------------------------------------------- #

# Finds the number of column
def findColumn(text, array):
    for i, elem in enumerate(array):
        if elem == text:
            return i
    raise ValueError('Oszlop nem található!' + text)

# Finds all column numbers, returns an array of positions


def findColumnNumbers(csvHeaderArray, requiredHeaders):
    colNumbers = []
    for col in requiredHeaders:
        colnum = findColumn(col, csvHeaderArray)
        print(f'"{col}" oszlop sorszáma: {colnum}')
        colNumbers.append(colnum)
    print()
    return colNumbers

# Gets the data from all rows, based on column numbers:


def getReqData(csvRows, colNumbers):
    outData = []
    for row in csvRows:
        dict1 = {}
        for i, reqCol in enumerate(colNumbers):
            dict1[requiredData[i]] = row[reqCol]
        outData.append(dict1)
    return outData


def getXmlData(data):
    xmlData = []
    for dict in data:
        theDate = datetime.datetime.strptime(
            dict["Reading data"], '%d. %m. %Y %H:%M:%S')
        xmlDict = {
            "KeszulekAzon": dict["Notes"],
            "Gyariszam": dict["Meter n°"],
            "MeroAllas": dict["Reading"].replace(',', '.').replace(' ', ''),
            "MertekEgyseg": "m3",
            "LeoMod": "20",
            "LeoMegjegyzes": "06",
            "TenyLeoDatum": theDate.strftime('%Y%m%d'),
            "TenyLeoIdo": theDate.strftime('%H%M%S')
        }
        xmlData.append(xmlDict)
    return xmlData


def checkData(xmlData):
    print()
    missingData = False
    for mérő in xmlData:
        for adat in mérő:
            if len(mérő[adat]) == 0:
                missingData = True
                print(f'Adat hiányzik: "{adat}" a következő sorból:')
                print(mérő)
    return missingData

# ---------------------------------------------------------------------------- #
#                                     Code                                     #
# ---------------------------------------------------------------------------- #


requiredData = ['Notes', 'Meter n°', 'Reading', 'Reading data']

# --------------------------------- Read arg --------------------------------- #
if len(sys.argv) != 2:
    raise ValueError('Útvonal hiányzik!')
csvPath = sys.argv[1]
print(f'Útvonal olvasása: {csvPath}')
folder = os.path.dirname(csvPath)

# --------------------------------- Read csv --------------------------------- #

csvArrs = []
csvFileNames = []
if os.path.isdir(csvPath):
    folder = csvPath
    print(f'Fájlok a mappában: {os.listdir(csvPath)}')
    for i, file in enumerate(os.listdir(csvPath)):
        csvFileNames.append(file)
        with open(os.path.join(csvPath, file), newline='') as csvfile:
            incsv = csv.reader(csvfile, delimiter=';')
            csvArrs.append([])

            for row in incsv:
                csvArrs[i].append(row)

else:
    csvFileNames.append(csvPath)
    with open(csvPath, newline='') as csvfile:
        incsv = csv.reader(csvfile, delimiter=';')
        csvArrs.append([])
        for row in incsv:
            csvArrs[0].append(row)


# ---------------------------- Find column numbers --------------------------- #

# Get the number of each column:
dataColNumbers = []
for i, table in enumerate(csvArrs):
    print(f'Oszlopok keresése: {csvFileNames[i]}:')
    dataColNumbers.append(findColumnNumbers(table[0], requiredData))

# ----------------------------- Get required data ---------------------------- #

# Remove headers from csv:
for table in csvArrs:
    table.pop(0)

# Get data based on column numbers:
reqData = []
for i, table in enumerate(csvArrs):
    reqData.append(getReqData(table, dataColNumbers[i]))

# ---------------- Convert to required formats and check data ---------------- #

# get only required for xml, fill static values
xmlReqData = []
for i, table in enumerate(reqData):
    print(f'Fájl ellenőrzése: {csvFileNames[i]}')
    currXmlData = getXmlData(table)
    if not checkData(currXmlData):
        print('Fájl hibátlan')
    print()
    xmlReqData.append(currXmlData)

# print(xmlReqData)
# for i in xmlReqData:
#     print(i)


# ------------------------------- Merge arrays ------------------------------- #

allXmlData = []
for array in xmlReqData:
    for mérő in array:
        allXmlData.append(mérő)

for i in allXmlData:
    print(i)

# ----------------------------- Generate filename ---------------------------- #


now = datetime.datetime.now()
fileNameBase = 'SZLA_' + now.strftime('%Y%m%d%H%M%S') + '_'
fileNameNotFound = True
fileNum = 1
while fileNameNotFound:
    fileName = os.path.join(folder, fileNameBase +
                            str(fileNum).zfill(2) + '.XML')
    fileNum = fileNum+1
    if not os.path.exists(fileName):
        fileNameNotFound = False


print(f'Fájl mentése ide: {fileName}')
print()

# --------------------------------- Write xml -------------------------------- #

data = ET.Element('Leolvasasok')
data.tail = '\r\n'
for mérő in allXmlData:
    currSub = ET.SubElement(data, 'Leolvasas')
    currSub.tail = '\r\n'
    for adat in mérő:
        a = ET.SubElement(currSub, adat)
        a.text = mérő[adat]
        a.tail = '\r\n'

print(ET.dump(data))
print()

tree = ET.ElementTree(data)
tree.write(fileName, encoding="utf-8", xml_declaration=True)