<?php

namespace WPDeskFIVendor\WPDesk\Dashboard;

final class DashboardWidget
{
    const ID = 'flexible-invoices';
    const WP_DESK_CARE_ID = 296222;
    const AUTOPAY_ID = 349143;
    const MUTEX_HOOK = 'wpdesk/ltvdashboard/initialized';
    const PL_LOCALE = 'pl_PL';
    /**
     *
     * @var string
     */
    private $widget_title = '';
    /**
     *
     * @var bool
     */
    private $show_widget_header = \true;
    /**
     *
     * @var bool
     */
    private $show_widget_footer = \true;
    /**
     *
     * @var int
     */
    private $plugins_limit = 3;
    /**
     *
     * @var int
     */
    private $cache_timeout = 0;
    /**
     *
     * @var int
     */
    private $cache_retry_timeout = 0;
    /**
     *
     * @var string
     */
    private $locale;
    /**
     *
     * @var array
     */
    private $cache_data = [];
    /**
     *
     * @var string
     */
    private $utm_base = 'utm_source=dashboard-metabox&utm_campaign=dashboard-metabox';
    public function __construct()
    {
        $this->cache_timeout = 24 * 60 * 60;
        $this->cache_retry_timeout = 6 * 60 * 60;
        $this->locale = get_user_locale();
    }
    private static function get_default_widget_title(): string
    {
        return __('Grow your business with WP Desk', 'flexible-invoices');
    }
    public function set_widget_title(string $title)
    {
        $this->widget_title = $title;
    }
    public function show_widget_header(bool $bool)
    {
        $this->show_widget_header = $bool;
    }
    public function show_widget_footer(bool $bool)
    {
        $this->show_widget_footer = $bool;
    }
    public function set_plugins_limit(int $limit)
    {
        $this->plugins_limit = $limit;
    }
    public function set_cache_timeout(int $timeout)
    {
        $this->cache_timeout = $timeout;
    }
    public function set_locale(string $locale)
    {
        $this->locale = $locale;
    }
    public function set_utm_base(string $utm_base)
    {
        $this->utm_base = $utm_base;
    }
    public function hooks()
    {
        if (apply_filters('wpdesk/ltvdashboard/disable', \false) === \true) {
            return;
        }
        if (apply_filters(self::MUTEX_HOOK, \false) === \false) {
            add_filter(self::MUTEX_HOOK, '__return_true');
            add_action('wp_dashboard_setup', [$this, 'add_widget']);
        }
    }
    public function add_widget()
    {
        wp_add_dashboard_widget(self::ID, $this->widget_title ?: self::get_default_widget_title(), [$this, 'widget_output'], null, null, 'normal', 'high');
    }
    private function get_all_plugins_dirs(): array
    {
        $all_plugins = array_keys(get_plugins());
        return array_map('dirname', $all_plugins);
    }
    private function filter_plugins_to_show(array $plugins, int $limit, bool $for_free = \false): array
    {
        if ($limit === 0) {
            return [];
        }
        usort($plugins, static function ($a, $b) {
            $a['priority'] = $a['priority'] ?? '0';
            $b['priority'] = $b['priority'] ?? '0';
            return strnatcmp($a['priority'], $b['priority']);
        });
        $installed_plugins_dir = $this->get_all_plugins_dirs();
        $plugins = array_filter($plugins, static function ($plugin) use ($installed_plugins_dir, $for_free) {
            $installed = !\in_array($plugin['slug'], $installed_plugins_dir, \true);
            if ($for_free) {
                $installed = \in_array($plugin['free_plugin_slug'], $installed_plugins_dir, \true) && $installed;
            }
            return $installed;
        });
        return array_slice($plugins, 0, $limit);
    }
    private function get_server(): string
    {
        $locale = $this->locale;
        if ($locale === self::PL_LOCALE) {
            return 'www.wpdesk.pl';
        }
        return 'www.wpdesk.net';
    }
    private function has_cached_data(): bool
    {
        if ($this->cache_timeout <= 0) {
            return \false;
        }
        $cache_data = $this->get_raw_cached_data();
        return null === $cache_data || \is_array($cache_data);
    }
    private function get_cached_data_key(): string
    {
        return sprintf('wpdesk_ltv_%1$s_%2$s', self::ID, $this->locale);
    }
    /**
     *
     * @return mixed
     */
    private function get_raw_cached_data()
    {
        return get_transient($this->get_cached_data_key());
    }
    private function get_cached_data(): array
    {
        if (!empty($this->cache_data)) {
            return $this->cache_data;
        }
        $cache_data = $this->get_raw_cached_data();
        $this->cache_data = is_array($cache_data) ? $cache_data : [];
        return $this->cache_data;
    }
    /**
     *
     * @param mixed $data
     * @param int $timeout
     *
     * @return void
     */
    private function set_data_to_cache($data, int $timeout)
    {
        $cache_key = $this->get_cached_data_key();
        set_transient($cache_key, $data, $timeout);
    }
    private function get_widget_data(): array
    {
        if ($this->has_cached_data()) {
            return $this->get_cached_data();
        }
        $response_data = $this->get_widget_data_from_remote();
        if ($response_data !== null) {
            $this->set_data_to_cache($response_data, $this->cache_timeout);
            return $response_data;
        } else {
            $this->set_data_to_cache(null, $this->cache_retry_timeout);
        }
        return [];
    }
    /**
     * @return array|null
     */
    private function get_widget_data_from_remote()
    {
        $response = wp_remote_get(sprintf('https://%s?wpdesk_api=1&t=1', $this->get_server()), ['timeout' => 10, 'sslverify' => \false]);
        if (!is_array($response)) {
            return null;
        }
        $ret = json_decode($response['body'], \true);
        if (!$ret || !is_array($ret)) {
            return null;
        }
        $for_free_plugins = $this->filter_plugins_to_show($ret['for_free_plugins'] ?? [], $this->plugins_limit, \true);
        $plugins = $this->filter_plugins_to_show($ret['plugins'] ?? [], $this->plugins_limit - count($for_free_plugins), \false);
        return ['header' => $ret['header'] ?? null, 'for_free_plugins' => $for_free_plugins, 'plugins' => $plugins, 'footer' => $ret['footer'] ?? null];
    }
    public function widget_output()
    {
        $widget_data = $this->get_widget_data();
        if (!empty($widget_data)) {
            echo '<div class="wpdesk-ltv-dashboard-widget">';
            if ($this->show_widget_header && $widget_data['header']) {
                echo wp_kses_post($widget_data['header']);
            }
            echo '<ul class="ltv-rows">';
            $this->show_plugins($widget_data['for_free_plugins'] ?? [], \true);
            $this->show_plugins($widget_data['plugins'] ?? [], \false);
            echo '</ul>';
            echo '<div class="ltv-footer">';
            if ($this->show_widget_footer && $widget_data['footer']) {
                echo wp_kses_post($widget_data['footer']);
            }
            echo '</div>';
            echo '</div>';
            ?>
            <style>
                .wpdesk-ltv-dashboard-widget .ltv-rows {
                    margin-left: -12px;
                    margin-right: -12px;
                }

                .wpdesk-ltv-dashboard-widget .ltv-row {
                    padding: 6px 12px 24px;
                }

                .wpdesk-ltv-dashboard-widget .ltv-row:nth-child(odd) {
                    background-color: #f6f7f7;
                }

                .wpdesk-ltv-dashboard-widget .ltv-row-description p {
                    margin-top: 6px;
                }

                .wpdesk-ltv-dashboard-widget img {
                    display: block;
                    margin: 0 auto 10px;
                    width: 250px;
                    max-width: 100%;
                }

                .wpdesk-ltv-dashboard-widget .ltv-buttons {
                    display: flex;
                    justify-content: space-around;
                }

                .ltv-buttons a.button.button-large {
                    width: 100%;
                    text-align: center;
                }

                .wpdesk-ltv-dashboard-widget .ltv-footer {
                    margin: 0 -12px;
                    padding: 0 12px;
                }

                .wpdesk-ltv-dashboard-widget .ltv-footer p {
                    margin: 0;
                }
            </style>
            <?php 
        }
    }
    private function show_plugins(array $plugins, bool $for_free = \false)
    {
        $server = $this->get_server();
        $utm_base = $this->utm_base;
        foreach ($plugins as $plugin) {
            $slug = $plugin['slug'];
            if ($for_free && isset($plugin['free_plugin_slug'])) {
                $slug = $plugin['free_plugin_slug'];
            }
            $plugin_url = sprintf('%1$s?%2$s&utm_medium=more-info-button&utm_term=%3$s', $plugin['url'], $utm_base, $slug);
            $add_to_cart_url = sprintf('https://%1$s/?add-to-cart=%2$s&%3$s&utm_medium=buy-now-button&utm_term=%4$s', $server, $plugin['add_to_cart_id'], $utm_base, $slug);
            $add_to_cart_button_label = esc_html__('Buy now', 'flexible-invoices');
            if ($plugin['add_to_cart_id'] === self::WP_DESK_CARE_ID) {
                $add_to_cart_button_label = esc_html__('Learn more', 'flexible-invoices');
                $add_to_cart_url = $plugin_url;
            } else if ($plugin['add_to_cart_id'] === self::AUTOPAY_ID) {
                $add_to_cart_button_label = esc_html__('Download', 'flexible-invoices');
                $add_to_cart_url = esc_url("https://wpdesk.link/autopay-wpdeskpl");
            }
            echo '<li class="ltv-row">';
            if ($plugin['image']) {
                echo '<img src="' . esc_url($plugin['image']) . '" alt="" />';
            }
            echo '<p><strong>' . esc_html($plugin['name']) . '</strong></p>';
            echo '<div class="ltv-row-description">' . wp_kses_post($plugin['description']) . '</div>';
            echo '<div class="ltv-buttons">';
            if ($for_free) {
                echo '<a class="button button-primary" href="' . \esc_url($plugin_url) . '" target="_blank">' . esc_html__('More info', 'flexible-invoices') . '</a>';
                echo '<a class="button button-secondary" href="' . \esc_url($add_to_cart_url) . '" target="_blank">' . $add_to_cart_button_label . '</a>';
            } else {
                echo '<a class="button button-primary button-large" href="' . esc_url($add_to_cart_url) . '" target="_blank">' . $add_to_cart_button_label . '</a>';
            }
            echo '</div>';
            echo '</li>';
        }
    }
}
