<?php

namespace MPHB;

/**
 * @since 3.7.0
 */
class Notices
{
    protected $notices = array(
        // Notice ID => Render callback
        'force_upgrade' => 'forceUpgradeNotice',
        'update_confirmation_endpoints' => 'updateEndpointsNotice'
    );

    protected $capabilities = array(
        // Notice ID => Required capabilities
        'force_upgrade' => array(),
        'update_confirmation_endpoints' => array('manage_options', 'edit_pages')
    );

    protected $passedNotices = array();

    public function __construct()
    {
        $this->addActions();

        // Load notices even on AJAX calls. Otherwise we will show all notices
        // on each upgrade
        $this->loadPassedNotices();
    }

    public function addActions()
    {
        add_action('admin_notices', array($this, 'displayNotices'));
    }

    protected function loadPassedNotices()
    {
        // Use ["force_upgrade"] when there is no value and don't accidentally
        // show upgrade message (not so important after version 3.7.0)
        $passedNotices = get_option('mphb_passed_notices', array('force_upgrade'));
        $this->passedNotices = is_array($passedNotices) ? $passedNotices : array();
    }

    public function displayNotices()
    {
        foreach ($this->notices as $noticeId => $renderMethod) {
            // Skip passed or not actual notices
            if (in_array($noticeId, $this->passedNotices)) {
                continue;
            } else if (!$this->isActualNotice($noticeId)) {
                $this->hideNotice($noticeId);
                continue;
            }

            // Skip if user can't perform the action
            if (!$this->checkCapabilities($noticeId)) {
                continue;
            }

            // Display the notice
            // phpcs:ignore WordPress.Security.EscapeOutput.OutputNotEscaped
            echo $this->displayNotice($noticeId, $renderMethod);
        }
    }

    public function displayNotice($noticeId, $renderMethod)
    {
        $actionUrl = wp_nonce_url(
            add_query_arg(
                array(
                    'mphb_action' => $noticeId
                )
            ),
            $noticeId,
            'mphb_notice_nonce'
        );

        $cancelUrl = wp_nonce_url(
            add_query_arg(
                array(
                    'mphb_action' => 'hide_notice',
                    'notice_id'   => $noticeId
                )
            ),
            'hide_notice',
            'mphb_notice_nonce'
        );

        // phpcs:ignore WordPress.Security.EscapeOutput.OutputNotEscaped
        echo $this->$renderMethod($actionUrl, $cancelUrl);
    }

    public function isActualNotice($noticeId)
    {
        switch ($noticeId) {
            case 'update_confirmation_endpoints':
                return MPHB()->settings()->pages()->getBookingConfirmedPageId() != 0
                    || MPHB()->settings()->pages()->getReservationReceivedPageId() != 0;
                break;
        }

        return true;
    }

    public function checkCapabilities($noticeId)
    {
        if (!array_key_exists($noticeId, $this->capabilities)) {
            return false;
        }

        foreach ($this->capabilities[$noticeId] as $capability) {
            if (!current_user_can($capability)) {
                return false;
            }
        }

        return true;
    }

    public function showNotice($noticeId)
    {
        $itemIndex = array_search($noticeId, $this->passedNotices);

        if ($itemIndex !== false) {
            unset($this->passedNotices[$itemIndex]);
            update_option('mphb_passed_notices', $this->passedNotices);
        }
    }

    public function hideNotice($noticeId)
    {
        if (!in_array($noticeId, $this->passedNotices)) {
            $this->passedNotices[] = $noticeId;
            update_option('mphb_passed_notices', $this->passedNotices);
        }
    }

    /**
     * @param string $actionUrl
     * @param string $cancelUrl
     * @return string Notice HTML.
     */
    public function forceUpgradeNotice($actionUrl, $cancelUrl)
    {
        $output = '<div class="updated mphb-admin-notice">';
            $output .= '<p><strong>' . __('Hotel Booking Plugin', 'motopress-hotel-booking') . '</strong></p>';
            $output .= '<p>' . __('Your database is being updated in the background.', 'motopress-hotel-booking') . '</p>';
            $output .= '<p>'
                . '<a href="' . esc_url( $actionUrl ) . '">' . __('Taking a while? Click here to run it now.', 'motopress-hotel-booking') . '</a>'
                . ' (' . MPHB()->upgrader()->getProgress() . '%)'
                . '</p>';
        $output .= '</div>';

        return $output;
    }

    /**
     * @param string $actionUrl
     * @param string $cancelUrl
     * @return string Notice HTML.
     */
    public function updateEndpointsNotice($actionUrl, $cancelUrl)
    {
        $output = '<div class="updated">';
            $output .= '<p><strong>' . __('Hotel Booking Plugin', 'motopress-hotel-booking') . '</strong></p>';
            $output .= '<p>' . __('Add "Booking Confirmation" shortcode to your "Booking Confirmed" and "Reservation Received" pages to show more details about booking or payment.<br/>Click "Update Pages" to apply all changes automatically or skip this notice and add "Booking Confirmation" shortcode manually.<br/><b><em>This action will replace the whole content of the pages.</em></b>', 'motopress-hotel-booking') . '</p>';
            $output .= '<p>'
                . '<a href="' . esc_url($actionUrl) . '" class="button-primary">' . esc_html__('Update Pages', 'motopress-hotel-booking') . '</a>'
                . '&nbsp;'
                . '<a href="' . esc_url($cancelUrl) . '" class="button-secondary">' . esc_html__('Skip', 'motopress-hotel-booking') . '</a>'
                . '</p>';
        $output .= '</div>';

        return $output;
    }
}