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

import ftplib
import json
import os
import socket
from copy import deepcopy
from time import sleep

from requests import post

from compare_json import compare_json
from dir_to_json import get_json


def need_deleted(items, route):
    out = []
    for item in items:
        if item.get("is_file"):
            out.append({"action": "delete", "route": os.path.join(route, item.get('name'))})
        else:
            if item.get('content'):
                out = out + need_deleted(item.get("content"), os.path.join(route, item.get('name')))
            else:
                out.append({"action": "delete_folder", "route": os.path.join(route, item.get('name'))})
    return out

def need_added(items, route):
    out = []
    for item in items:
        if item.get("is_file"):
            out.append({"action": "add", "route": os.path.join(route, item.get('name'))})
        else:
            if item.get('content'):
                out = out + need_added(item.get("content"), os.path.join(route, item.get('name')))
            else:
                out.append({"action": "add_folder", "route": os.path.join(route, item.get('name'))})
    return out

def get_changes(jsons, route=''):
    delete, add = jsons
    out = need_deleted(delete, route) + need_added(add, route)
    return out
    '''
    out = []
    
    delete, add = jsons
    for item in delete:
        if item.get("is_file"):
            
            if item.get("tag"):
                if item.get("tag") == "update":
                    out.append({"action": "update", "file": os.path.join(route, item.get('name'))})
                elif item.get("tag") == "delete":##### Caso hipotetico imposible #####
                    if item.get("is_file"):
                        out.append({"action": "delete", "file": os.path.join(route, item.get('name'))})
                    else:
                        out.append({"action": "delete_folder", "file": os.path.join(route, item.get('name'))})
                        
            else:
                out.append({"action": "delete", "file": os.path.join(route, item.get('name'))})
                
            out.append({"action": "delete", "file": os.path.join(route, item.get('name'))})
        else:
    return out
    '''

ORIGINAL = "/home/kirbylife/Proyectos/munyal_test/original"

def main(args):
    ftp = ftplib.FTP('localhost', 'munyal', '123')
    actual = get_json(ORIGINAL)
    new = deepcopy(actual)
    switch = lambda x,o,d=None: o.get(x) if o.get(x) else d if d else lambda *args: None
    while True:
        sleep(1)
        jsons = compare_json(deepcopy(actual), deepcopy(new))
        changes = get_changes(jsons)
        for change in changes:
            route = os.path.join(ORIGINAL, change['route'])
            success = False
            while not success:
                # ~ try:
                x = change['route']
                if change['action'] == 'add':
                    print("Agregar archivo")
                    with open(route, "rb") as f:
                        ftp.storbinary("STOR /" + x, f)
                elif change['action'] == 'add_folder':
                    print("Agregar carpeta")
                    ftp.mkd(x)
                elif change['action'] == 'delete':
                    print("Borrar archivo")
                    ftp.delete(x)
                elif change['action'] == 'delete_folder':
                    print("Borrar carpeta")
                    ftp.rmd(x)
                else:
                    print("Unexpected action")
                r = post('http://127.0.0.1:5000/upload', data={
                        'host': socket.gethostname(),
                        'action': change['action'],
                        'route': change['route']
                    }
                )
                r = json.loads(r.text)
                print(json.dumps(r, indent=4))
                success = r['status'] == 'ok'
                # ~ except:
                    # ~ print("Error uploading, retrying again\n")
        actual = deepcopy(new)
        new = get_json(ORIGINAL)
    return 0

if __name__ == '__main__':
    import sys
    sys.exit(main(sys.argv))