<?php

/**
 * ajax -> payments -> mercadopago [Pre-Payment Integration]
 * 
 * @package Sngine
 * @author Zamblek
 */

// fetch bootstrap
require('../../../bootstrap.php');

// check AJAX Request
is_ajax();

// user access
user_access(true, true);

// check if MercadoPago enabled
if (!$system['mercadopago_enabled']) {
  modal("MESSAGE", __("Error"), __("This feature has been disabled by the admin"));
}

try {

  switch ($_POST['handle']) {
    case 'packages':
      // valid inputs
      if (!isset($_POST['package_id']) || !is_numeric($_POST['package_id'])) {
        _error(400);
      }

      // get package
      $package = $user->get_package($_POST['package_id']);
      if (!$package) {
        _error(400);
      }
      /* check if user already subscribed to this package */
      if ($user->_data['user_subscribed'] && $user->_data['user_package'] == $package['package_id']) {
        modal("SUCCESS", __("Subscribed"), __("You already subscribed to this package, Please select different package"));
      }

      // get mercadopago link
      $link = mercadopago("packages", $package['price'], $package['package_id']);
      break;

    case 'wallet':
      // valid inputs
      if (!isset($_POST['price']) || !is_numeric($_POST['price'])) {
        _error(400);
      }

      // get mercadopago link
      $link = mercadopago("wallet", $_POST['price']);
      break;

    case 'donate':
      // valid inputs
      if (!isset($_POST['post_id']) || !is_numeric($_POST['post_id'])) {
        _error(400);
      }
      if (!isset($_POST['price']) || !is_numeric($_POST['price'])) {
        _error(400);
      }

      // get post
      $post = $user->get_post($_POST['post_id']);
      if (!$post) {
        _error(400);
      }

      // get mercadopago link
      $link = mercadopago("donate", $_POST['price'], $_POST['post_id']);
      break;

    case 'subscribe':
      // valid inputs
      if (!isset($_POST['plan_id']) || !is_numeric($_POST['plan_id'])) {
        _error(400);
      }

      // get monetization plan
      $monetization_plan = $user->get_monetization_plan($_POST['plan_id'], true);
      if (!$monetization_plan) {
        _error(400);
      }
      /* check if user already subscribed to this node */
      if ($user->is_subscribed($monetization_plan['node_id'], $monetization_plan['node_type'])) {
        modal("SUCCESS", __("Subscribed"), __("You already subscribed to this") . " " . __($monetization_plan['node_type']));
      }

      // check if discount is enabled
      if ($monetization_plan['discounted_price']) {
        $monetization_plan['price'] = $monetization_plan['discounted_price'];
      }
      // check if promo code is valid
      if ($_POST['promo_code']) {
        $coupon = $user->check_monetization_coupon($_POST['promo_code']);
        if ($coupon) {
          $monetization_plan['price'] = $monetization_plan['price'] * (1 - $coupon['discount_percent'] / 100);
          /* update coupon usage */
          $user->update_monetization_coupon($_POST['promo_code'], $user->_data['user_id']);
        }
      }

      // get mercadopago link
      $link = mercadopago("subscribe", $monetization_plan['price'], $_POST['plan_id']);
      break;

    case 'paid_post':
      // valid inputs
      if (!isset($_POST['post_id']) || !is_numeric($_POST['post_id'])) {
        _error(400);
      }

      // get post
      $post = $user->get_post($_POST['post_id'], false, false, true);
      if (!$post) {
        _error(400);
      }
      if (!$post['needs_payment']) {
        throw new Exception(__("This post doesn't need payment"));
      }

      // check if discount is enabled
      if ($post['post_price_discounted']) {
        $post['post_price'] = $post['post_price_discounted'];
      }
      // check if promo code is valid
      if ($_POST['promo_code']) {
        $coupon = $user->check_monetization_coupon($_POST['promo_code']);
        if ($coupon) {
          $post['post_price'] = $post['post_price'] * (1 - $coupon['discount_percent'] / 100);
          /* update coupon usage */
          $user->update_monetization_coupon($_POST['promo_code'], $user->_data['user_id']);
        }
      }

      // get mercadopago link
      $link = mercadopago("paid_post", $post['post_price'], $_POST['post_id']);
      break;

    case 'movies':
      // valid inputs
      if (!isset($_POST['movie_id']) || !is_numeric($_POST['movie_id'])) {
        _error(400);
      }

      // get movie
      $movie = $user->get_movie($_POST['movie_id']);
      if (!$movie) {
        _error(400);
      }
      /* check if user already paid to this movie */
      if ($movie['can_watch']) {
        modal("SUCCESS", __("Paid"), __("You already paid to this movie"));
      }

      // get mercadopago link
      $link = mercadopago("movies", $movie['price'], $_POST['movie_id']);
      break;

    case 'marketplace':
      // valid inputs
      if (!isset($_POST['orders_collection_id'])) {
        _error(400);
      }

      // get orders collection
      $orders_collection = $user->get_orders_collection($_POST['orders_collection_id']);
      /* check if order collection exists */
      if (!$orders_collection) {
        _error(400);
      }
      /* check if user already paid to this order collection */
      if ($orders_collection['paid']) {
        modal("SUCCESS", __("Paid"), __("You already paid to this order"));
      }

      // get mercadopago link
      $link = mercadopago("marketplace", $orders_collection['total'], $_POST['orders_collection_id']);
      break;

    default:
      _error(400);
      break;
  }

  // return & exit
  return_json(['callback' => 'window.location.href = "' . $link . '";']);
} catch (Exception $e) {
  modal("ERROR", __("Error"), $e->getMessage());
}
