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



"""

import os
from os.path import isfile, isdir, dirname, join, realpath
import sys
import io
import json
from toot.console import main

# Command line Arguments
from argparse import ArgumentParser
parser = ArgumentParser()
parser.add_argument("-c", "--count", type=int, help="How many toots to read")
parser.add_argument("-t", "--tag", type=str, help="Which tag to follow")
parser.add_argument("-p", "--cache-path", type=str, default="/var/cache/reboostTag", help="Which path to use for storing ")
args = parser.parse_args()


# Variables
tag             = args.tag            # The tag to reboost
count           = args.count          # The number of toots to load
cache_path      = args.cache_path     # The tag file cache path
most_recent     = None                # The first item id in the loaded list
# last_seen_file is the cache file for a given tag
last_seen_file  = join(cache_path, "reboost.{}.lastseen".format( tag ))


# Exit if cache path doesn't exist
if( not isdir( cache_path) ):
  print( "Critical error: please create directory {}".format( cache_path) )
  os._exit(2)

# Touch last seen file if not exists
if( isfile( last_seen_file ) ):
  wrapper = open(last_seen_file, 'r',encoding="utf-8")
  last_seen = next(wrapper)
else:
  try:
    open(last_seen_file, 'w').close()
    last_seen = 0
  except IOError as e:
    print("Couldn't open or write to file (%s)." % e)

# redirect sys.stdout to a buffer
stdout = sys.stdout
sys.stdout = io.StringIO()

# Build a fake list of args to run the toot main() function on
sim_args = [sys.argv[0],  'timeline',  '-t',  tag,  '-c',  str(count),  '--json',  '-1']
sys.argv = sim_args
main()

# get main() output and restore sys.stdout
output = sys.stdout.getvalue()
sys.stdout = stdout

# Convert the received JSON to a list
itemList = json.loads( output)


# Loop through items
print ('Running with last_seen being: {}'.format(last_seen))
for item in itemList:

  # Set the most recent id
  if None == most_recent :
    most_recent = item['id']

  # if never seen, and therefore recent, reboost
  if( last_seen != item['id'] ):

    print("Reboosting item#{}".format(item['id']) )

    # Build a fake list of args to run the toot main() function on
    sim_args = [sys.argv[0],  'reblog',  str(item['id'])]
    sys.argv = sim_args
    #main()

  # We've seen you already that toot, break
  else:
    break;

# Update the cache file with new value, if exists
if( last_seen != most_recent) :

  print( "Saving most_recent as last_seen: {}".format(most_recent))
  handle = open(last_seen_file, 'w')
  handle.write(most_recent)
  handle.close()