<?php
$bot_name = "smeagol_lotr_bot";
$bot_api = require('api_key.php');

// Checks whether the given command is the same as the entered command
function check_command($command) {
  global $bot_name;
  global $decoded;
  $command_list = explode(" ", $decoded->{"message"}->{"text"});
  if ($command_list[0] == $command || $command_list[0] == $command . "@" . $bot_name) {
    return True;
  }
  else {
    return False;
  }
}

// Send code back to the sender.
function send_code($post_message, $reply=false) {
  global $decoded;
  global $bot_api;
  global $chat_id;
  $url = 'https://api.telegram.org/bot' . $bot_api . '/sendMessage';
  $post_msg = array('chat_id' => $chat_id, 'text' => '```\n ' . $post_message . '```', 'parse_mode' => 'markdown' );
  if ($reply != false) {
    if ($reply === true){
      $post_msg['reply_to_message_id'] = $decoded->{'message'}->{'message_id'};
    }
    else {
      $post_msg['reply_to_message_id'] = $reply;
    }
  }
  $options = array(
    'http' => array(
      'header' => "Content-type: application/x-www-form-urlencoded\r\n",
      'method' => 'POST',
      'content' => http_build_query($post_msg)
    )
  );
  $context = stream_context_create($options);
  $result = file_get_contents($url, false, $context);
}

// Send text back to the sender.
function send_text($post_message, $reply=false) {
  global $decoded;
  global $bot_api;
  global $chat_id;
  $url = 'https://api.telegram.org/bot' . $bot_api . '/sendMessage';
  $post_msg = array('chat_id' => $chat_id, 'text' =>$post_message );
  if ($reply != false) {
    if ($reply === true){
      $post_msg['reply_to_message_id'] = $decoded->{'message'}->{'message_id'};
    }
    else {
      $post_msg['reply_to_message_id'] = $reply;
    }
  }
  $options = array(
    'http' => array(
      'header' => "Content-type: application/x-www-form-urlencoded\r\n",
      'method' => 'POST',
      'content' => http_build_query($post_msg)
    )
  );
  $context = stream_context_create($options);
  $result = file_get_contents($url, false, $context);
}


// Send html back to the sender.
function send_html($post_message, $reply=false) {
  global $decoded;
  global $bot_api;
  global $chat_id;
  $url = 'https://api.telegram.org/bot' . $bot_api . '/sendMessage';
  $post_msg = array('chat_id' => $chat_id, 'text' =>$post_message, 'parse_mode' => 'html');
  if ($reply != false) {
    if ($reply === true){
      $post_msg['reply_to_message_id'] = $decoded->{'message'}->{'message_id'};
    }
    else {
      $post_msg['reply_to_message_id'] = $reply;
    }
  }
  $options = array(
    'http' => array(
      'header' => "Content-type: application/x-www-form-urlencoded\r\n",
      'method' => 'POST',
      'content' => http_build_query($post_msg)
    )
  );
  $context = stream_context_create($options);
  $result = file_get_contents($url, false, $context);
}

// Get JSON from post, store it and decode it.
$var = file_get_contents('php://input');
$decoded = json_decode($var);

// Store the chat ID
$chat_id = $decoded->{"message"}->{"chat"}->{"id"};

$modules = array(
  array(
    "command" => "/deposit",
    "function" => "deposit();"
  ),
  array(
    "command" => "/add",
    "function" => "add_requirement();"
  )
);

$command_list = explode(" ", $decoded->{"message"}->{"text"});

foreach ($modules as $module ) {
  if (check_command($module["command"])) {
    eval($module["function"]);
    exit();
  }
}
?>