#!/usr/bin/python3
import csv
import os
from datetime import datetime

path = '/srv/tftp/'

header_cfg = """#!version:1.0.0.1
#Tasti rapidi del tastierino esterno
#ATTENZIONE: NON MODIFICARE QUESTO FILE
#Questo file viene generato automaticamente a partire dal file
#tastierino_esterno.csv, modificare quest'ultimo ed attendere qualche minuto

account.1.sip_server.1.address = 192.168.1.7"""


def append_log(text):
    with open("error.txt", "a") as f:
        now = datetime.now()
        now_formatted = now.strftime("%d/%m/%Y, %H:%M:%S")
        log = " ".join([now_formatted, text])
        f.write(log)


try:
    os.chdir(path)
    append_log("Current working directory: {0}".format(os.getcwd()))
except FileNotFoundError:
    append_log("Directory: {0} does not exist".format(path))
except NotADirectoryError:
    append_log("{0} is not a directory".format(path))
except PermissionError:
    append_log("You do not have permissions to change to {0}".format(path))

def main(ofile):
    with open(ofile, newline='') as csvfile:
        spamreader = csv.reader(csvfile, delimiter=',', quotechar='"')
        line_count = 0
        to_write = header_cfg
        for row in spamreader:
            if line_count == 0:
                # trova la posizione dei campi che ci interessano
                idx_ext = row.index('extension')
                idx_name = row.index('name')
            else:
                if 'idx_ext' not in  locals() or 'idx_name' not in locals():
                    append_log("Errore: file csv senza i campi 'extension' e/o 'name'")
                try:
                    ext_n = int(row[idx_ext])
                except:
                    continue

                ext_name = row[idx_name]
                to_write = "\n".join([to_write, print_ext(line_count, ext_n, ext_name)])
            line_count += 1
        write_f(to_write,"tastierino_esterno.cfg")

def write_f(text,file_name):
    with open(file_name, "w") as file:
        file.write(text)

def print_ext(n, n_ext, lbl_ext):
    spamrow = f"""expansion_module.1.key.{n}.extension = 
expansion_module.1.key.{n}.label = {n_ext}
expansion_module.1.key.{n}.type = 16
expansion_module.1.key.{n}.value = {lbl_ext}"""
    return spamrow

def print_hotkeys():
    exit

if __name__ == '__main__':
    ofile: str = 'tastierino_esterno.csv'
    try:
        main(ofile)
    except FileNotFoundError:
        append_log("File CSV non trovato")