#!/usr/bin/python3
import json
import sys
from datetime import datetime

def check_challenge_win(message, hour, minute):
  # Check that the message has text and that the text is "1337"
  if "text" in message and message["text"] == hour + minute:
    # Check if the message was edited, return false
    if "edited" in message:
      return False
    else:
      # get the hour and minutes from the date
      dt = datetime.fromtimestamp(int(message["date_unixtime"]))

    #finally, check if the hour and minute corresponds to the text of the message
    if (dt.hour == int(hour) and dt.minute == int(minute)):
      return True
    else:
      return False

def analyze_messages(messages, hour, minute):
  # Initialize the dict that we will return
  wins = {}

  # check the messages
  for message in messages:
    if(check_challenge_win(message, hour, minute)):
      #print("Message gagnant de " + message["from"] + " le " + message["date"])
      #If it's the first win, add the key with value 1
      if message["from"] not in wins:
        wins[message["from"]] = 1
      # Else, add 1 to the number of wins
      else:
        wins[message["from"]] += 1

  return wins

def verify_time_string(time):
  # Check that the time string is made of 4 digits
  if not(time.isdigit() and len(time) ==4):
    print("Erreur : format de chaine non valide", file=sys.stderr)
    return False
  # Check that the hour and minute numbers are valid
  elif not (0 <= int(time[:2]) < 24 and 0 <= int(time[2:]) < 60):
    print("Erreur : heure non valide", file=sys.stderr)
    return False
  else: 
    return True

def main():
  # Get the file name from the first command line argument
  filename = sys.argv[1]

  # Get the time chosen for the challenge (1337,1312, 2222, etc.)
  time = sys.argv[2]

  # Verify that the time string is a valid time of day
  if verify_time_string(time):
    hour = time[:2]
    minute = time[2:]
  else: 
    quit()

  # Import the array from the JSON file
  messages = import_array(filename)
  
  # create a dict containing the number of wins for each sender
  wins = analyze_messages(messages, hour, minute)
  
  # sort and print the resulting wins dict
  sorted_wins = sorted(wins.items(), key=lambda x:x[1], reverse=True)
  print(sorted_wins)

if __name__ == '__main__':
  main()