<?php
if ( ! defined( 'ABSPATH' ) ) {
    exit;
}

/**
 * Required functions
 */
if ( ! function_exists( 'woothemes_queue_update' ) ) {
    require_once( 'woo-includes/woo-functions.php' );
}

/**
 * Plugin updates
 */
woothemes_queue_update( plugin_basename( __FILE__ ), 'a6fcf35d3297c328078dfe822e00bd06', '18728' );

if ( is_woocommerce_active() ) {

    /**
     * WC_Account_Funds
     */
    class WC_Account_Funds {

        /**
         * Constructor
         */
        public function __construct() {
            add_action( 'init', array( $this, 'load_plugin_textdomain' ) );
            add_filter( 'plugin_action_links_' . plugin_basename( __FILE__ ), array( $this, 'plugin_action_links' ) );
            add_action( 'init', array( $this, 'init' ) );
            add_action( 'plugins_loaded', array( $this, 'gateway_init' ), 0 );
            add_action( 'widgets_init', array( $this, 'widgets_init' ) );
            add_action( 'init', array( $this, 'admin_init' ) );
            add_filter( 'woocommerce_payment_gateways', array( $this, 'register_gateway' ) );
            add_action( 'wp_enqueue_scripts', array( $this, 'checkout_scripts' ) );

            define( 'WC_ACCOUNT_FUNDS_FILE', __FILE__ );
            register_activation_hook( __FILE__, array( $this, 'activate' ) );
        }

        /**
         * Load plugin textdomain
         */
        public function load_plugin_textdomain() {
            load_plugin_textdomain( 'woocommerce-account-funds', false, dirname( plugin_basename( __FILE__ ) ) . '/languages/' );
        }

        /**
         * Load classes
         */
        public function init() {
            include_once( 'includes/class-wc-product-deposit.php' );
            include_once( 'includes/class-wc-product-topup.php' );
            include_once( 'includes/class-wc-account-funds-cart-manager.php' );
            include_once( 'includes/class-wc-account-funds-deposits-manager.php' );
            include_once( 'includes/class-wc-account-funds-order-manager.php' );
            include_once( 'includes/class-wc-account-funds-integration.php' );
            include_once( 'includes/class-wc-account-funds-shortcodes.php' );
            include_once( 'includes/class-wc-account-funds-my-account.php' );
        }

        /**
         * Init Gateway
         */
        public function gateway_init() {
            if ( ! class_exists( 'WC_Payment_Gateway' ) ) {
                return;
            }
            include_once( 'includes/class-wc-gateway-account-funds.php' );
        }

        /**
         * Load Widget
         */
        public function widgets_init() {
            include_once( 'includes/class-wc-account-funds-widget.php' );
        }

        /**
         * Load admin
         */
        public function admin_init() {
            if ( is_admin() ) {
                include_once( 'includes/class-wc-account-funds-admin.php' );
                include_once( 'includes/class-wc-account-funds-admin-product.php' );
                include_once( 'includes/class-wc-account-funds-reports.php' );
            }
        }

        /**
         * Activation
         */
        public function activate() {
            $old_settings = get_option( 'wcaf_settings', array(
                'give_discount'   => 0,
                'discount_type'   => 'fixed',
                'discount_amount' => 0
            ) );
            add_option( 'account_funds_give_discount', $old_settings['give_discount'] );
            add_option( 'account_funds_discount_type', $old_settings['discount_type'] );
            add_option( 'account_funds_discount_amount', $old_settings['discount_amount'] );
            add_option( 'account_funds_enable_topup', 'no' );
            add_option( 'account_funds_min_topup', '' );
            add_option( 'account_funds_max_topup', '' );
            add_option( 'account_funds_partial_payment', 'no' );
        }

        /**
         * Add custom action links on the plugin screen.
         *
         * @param   mixed $actions Plugin Actions Links
         * @return  array
         */
        public function plugin_action_links( $actions ) {
            return array_merge( array(
                'docs'      => sprintf( '<a href="%s">%s</a>', 'http://docs.woothemes.com/document/account-funds/', __( 'Docs', 'woocommerce-account-funds' ) ),
                'support'   => sprintf( '<a href="%s">%s</a>', 'http://support.woothemes.com/', __( 'Support', 'woocommerce-account-funds' ) ),
                'changelog' => sprintf( '<a href="%s" target="_blank">%s</a>', 'https://www.woothemes.com/changelogs/extensions/woocommerce-account-funds/changelog.txt', __( 'Changelog', 'woocommerce-account-funds' ) )
            ), $actions );
        }

        /**
         * Get a users funds amount
         * @param  int  $user_id
         * @param  boolean $formatted
         * @return string
         */
        public static function get_account_funds( $user_id = null, $formatted = true, $exclude_order_id = 0 ) {
            $user_id = $user_id ? $user_id : get_current_user_id();

            if ( $user_id ) {
                $funds = max( 0, get_user_meta( $user_id, 'account_funds', true ) );

                // Account for pending orders
                $orders_with_pending_funds = get_posts( array(
                    'numberposts' => -1,
                    'post_type'   => 'shop_order',
                    'post_status' => array_keys( wc_get_order_statuses() ),
                    'fields'      => 'ids',
                    'meta_query'  => array(
                        array(
                            'key'   => '_customer_user',
                            'value' => $user_id
                        ),
                        array(
                            'key'   => '_funds_removed',
                            'value' => '0',
                        ),
                        array(
                            'key'     => '_funds_used',
                            'value'   => '0',
                            'compare' => '>'
                        )
                    )
                ) );

                foreach ( $orders_with_pending_funds as $order_id ) {
                    if ( null !== WC()->session && ! empty( WC()->session->order_awaiting_payment ) && $order_id == WC()->session->order_awaiting_payment ) {
                        continue;
                    }
                    if ( $exclude_order_id === $order_id ) {
                        continue;
                    }
                    $funds = $funds - floatval( get_post_meta( $order_id, '_funds_used', true ) );
                }
            } else {
                $funds = 0;
            }

            return $formatted ? wc_price( $funds ) : $funds;
        }

        /**
         * Add funds to user account
         * @param int $customer_id
         * @param float $amount
         */
        public static function add_funds( $customer_id, $amount ) {
            $funds = get_user_meta( $customer_id, 'account_funds', true );
            $funds = $funds ? $funds : 0;
            $funds += floatval( $amount );
            update_user_meta( $customer_id, 'account_funds', $funds );
        }

        /**
         * Remove funds from user account
         * @param int $customer_id
         * @param float $amount
         */
        public static function remove_funds( $customer_id, $amount ) {
            $funds = get_user_meta( $customer_id, 'account_funds', true );
            $funds = $funds ? $funds : 0;
            $funds = $funds - floatval( $amount );
            update_user_meta( $customer_id, 'account_funds', max( 0, $funds ) );
        }

        /**
         * Register the gateway for use
         */
        public function register_gateway( $methods ) {
            $methods[] = 'WC_Gateway_Account_Funds';
            return $methods;
        }

        /**
         * Add scripts to checkout process
         */
        public function checkout_scripts() {
            wp_enqueue_script( 'account_funds', plugins_url( 'assets/js/account-funds.js', WC_ACCOUNT_FUNDS_FILE ), array( 'jquery' ), true );
        }
    }

    new WC_Account_Funds();
}