#!/usr/bin/python3
# -*- coding: utf-8 -*-
##
## @author Edouard DUPIN
##
## @copyright 2012, Edouard DUPIN, all right reserved
##
## @license MPL v2.0 (see license file)
##
#pip install paho-mqtt --user

from realog import debug
import json
import os
import random
import copy
from dateutil import parser
import datetime

import db


def file_read_data(path):
	if not os.path.isfile(path):
		return ""
	file = open(path, "r")
	data_file = file.read()
	file.close()
	return data_file


def transfert_db(data_mapping, type_mapping):
	out = {}
	out[str(None)] = None
	
	connection = db.connect_bdd();
	
	debug.info("Load old BDD: ")
	
	data = file_read_data('bdd_group.json')
	my_old_bdd = json.loads(data)
	
	debug.info("create the table:")
	
	
	
	c = connection.cursor()
	
	
	debug.info("insert elements: ")
	iii = 0;
	for elem in my_old_bdd:
		iii+=1;
		debug.info("[" + str(iii) + "/" + str(len(my_old_bdd)) + "] send new element " + str(elem["id"]))
		id = elem["id"]
		name = elem["name"]
		if "description" not in elem.keys():
			description = None
		else:
			description = elem["description"]
		if "covers" not in elem.keys():
			covers = []
		else:
			covers = elem["covers"]
			if covers == None:
				covers = [];
		request_insert = (name, description)
		c.execute('INSERT INTO node (type, name, description) VALUES (\'serie\', %s,%s) RETURNING id', request_insert)
		id_of_new_row = c.fetchone()[0]
		debug.info("data transform: " + str(id) + " => " + str(id_of_new_row))
		out[str(id)] = id_of_new_row
		connection.commit()
		for elem_cover in covers:
			request_insert = (id_of_new_row, data_mapping[str(elem_cover)])
			print("    insert cover " + str(request_insert))
			c.execute('INSERT INTO cover_link (node_id, data_id) VALUES (%s,%s) RETURNING id', request_insert)
		connection.commit()
	# Save (commit) the changes
	connection.commit()
	
	# We can also close the connection if we are done with it.
	# Just be sure any changes have been committed or they will be lost.
	connection.close()
	
	return out;