<?php
/**
 * Plugin Name: Absoluit User Hub — Master Dashboard
 * Plugin URI: https://absoluit.com/
 * Description: Central dashboard to manage WordPress users across all your connected sites. Powered by Absoluit.
 * Version: 1.1.1
 * Author: Absoluit
 * Author URI: https://absoluit.com/
 * License: GPL v2 or later
 * License URI: https://www.gnu.org/licenses/gpl-2.0.html
 * Text Domain: absoluit-user-hub
 * Requires at least: 5.6
 * Requires PHP: 7.4
 */

if ( ! defined( 'ABSPATH' ) ) {
    exit;
}

define( 'WPUHM_VERSION', '1.1.1' );
define( 'WPUHM_PLUGIN_DIR', plugin_dir_path( __FILE__ ) );
define( 'WPUHM_PLUGIN_URL', plugin_dir_url( __FILE__ ) );

// Load dependencies
require_once WPUHM_PLUGIN_DIR . 'includes/class-api-client.php';
require_once WPUHM_PLUGIN_DIR . 'includes/class-site-manager.php';
require_once WPUHM_PLUGIN_DIR . 'includes/class-user-operations.php';
require_once WPUHM_PLUGIN_DIR . 'includes/class-ajax-handler.php';

/**
 * =============================================================
 *  ACTIVATION — Create DB Table
 * =============================================================
 */
// register_activation_hook( __FILE__, 'wpuhm_activate' );
function wpuhm_activate() {
    global $wpdb;
    $table_name      = $wpdb->prefix . 'userhub_sites';
    $charset_collate = $wpdb->get_charset_collate();

    $sql = "CREATE TABLE {$table_name} (
        id bigint(20) unsigned NOT NULL AUTO_INCREMENT,
        site_name varchar(255) NOT NULL DEFAULT '',
        site_url varchar(500) NOT NULL,
        api_key varchar(255) NOT NULL,
        status varchar(20) NOT NULL DEFAULT 'unknown',
        last_ping datetime DEFAULT NULL,
        wp_version varchar(20) DEFAULT '',
        php_version varchar(20) DEFAULT '',
        user_count int(11) DEFAULT 0,
        created_at datetime NOT NULL DEFAULT '0000-00-00 00:00:00',
        updated_at datetime NOT NULL DEFAULT '0000-00-00 00:00:00',
        PRIMARY KEY  (id),
        UNIQUE KEY site_url  (site_url(191))
    ) {$charset_collate};";

    require_once ABSPATH . 'wp-admin/includes/upgrade.php';
    dbDelta( $sql );

    update_option( 'wpuhm_db_version', WPUHM_VERSION );
}

// register_deactivation_hook( __FILE__, 'wpuhm_deactivate' );
function wpuhm_deactivate() {
    // Don't drop table on deactivation — preserve data
}

/**
 * Self-healing DB check: Ensure database table is created automatically if missing.
 */
add_action( 'admin_init', 'wpuhm_check_db_version' );
function wpuhm_check_db_version() {
    $db_version = get_option( 'wpuhm_db_version', '' );
    if ( $db_version !== WPUHM_VERSION ) {
        wpuhm_activate();
    }
}

/**
 * =============================================================
 *  ADMIN MENU
 * =============================================================
 */
add_action( 'admin_menu', 'wpuhm_admin_menu' );
function wpuhm_admin_menu() {
    // Top-level menu
    add_menu_page(
        __( 'User Hub', 'absoluit-user-hub' ),
        __( 'User Hub', 'absoluit-user-hub' ),
        'manage_options',
        'userhub-dashboard',
        'wpuhm_render_dashboard',
        'dashicons-networking'
    );

    // Submenu pages
    add_submenu_page(
        'userhub-dashboard',
        __( 'Dashboard', 'absoluit-user-hub' ),
        __( 'Dashboard', 'absoluit-user-hub' ),
        'manage_options',
        'userhub-dashboard',
        'wpuhm_render_dashboard'
    );

    add_submenu_page(
        'userhub-dashboard',
        __( 'Connected Sites', 'absoluit-user-hub' ),
        __( 'Connected Sites', 'absoluit-user-hub' ),
        'manage_options',
        'userhub-sites',
        'wpuhm_render_sites'
    );

    add_submenu_page(
        'userhub-dashboard',
        __( 'Add User', 'absoluit-user-hub' ),
        __( 'Add User', 'absoluit-user-hub' ),
        'manage_options',
        'userhub-add-user',
        'wpuhm_render_add_user'
    );

    add_submenu_page(
        'userhub-dashboard',
        __( 'Remove User', 'absoluit-user-hub' ),
        __( 'Remove User', 'absoluit-user-hub' ),
        'manage_options',
        'userhub-remove-user',
        'wpuhm_render_remove_user'
    );

    add_submenu_page(
        'userhub-dashboard',
        __( 'All Users', 'absoluit-user-hub' ),
        __( 'All Users', 'absoluit-user-hub' ),
        'manage_options',
        'userhub-users',
        'wpuhm_render_users'
    );
}

/**
 * =============================================================
 *  ENQUEUE ADMIN ASSETS
 * =============================================================
 */
add_action( 'admin_enqueue_scripts', 'wpuhm_enqueue_admin_assets' );
function wpuhm_enqueue_admin_assets( $hook ) {
    // Only load on our pages
    if ( strpos( $hook, 'userhub' ) === false ) {
        return;
    }

    // Google Fonts
    wp_enqueue_style(
        'wpuhm-google-fonts',
        'https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&display=swap',
        array(),
        null
    );

    wp_enqueue_style(
        'wpuhm-admin-style',
        WPUHM_PLUGIN_URL . 'admin/css/admin-style.css',
        array(),
        WPUHM_VERSION
    );

    wp_enqueue_script(
        'wpuhm-admin-script',
        WPUHM_PLUGIN_URL . 'admin/js/admin-script.js',
        array( 'jquery' ),
        WPUHM_VERSION,
        true
    );

    wp_localize_script( 'wpuhm-admin-script', 'wpuhm_ajax', array(
        'ajax_url' => admin_url( 'admin-ajax.php' ),
        'nonce'    => wp_create_nonce( 'wpuhm_nonce' ),
        'strings'  => array(
            'confirm_delete_site' => __( 'Are you sure you want to remove this site?', 'absoluit-user-hub' ),
            'confirm_delete_user' => __( 'Are you sure you want to delete this user from the selected sites?', 'absoluit-user-hub' ),
            'testing'             => __( 'Testing...', 'absoluit-user-hub' ),
            'connected'           => __( 'Connected', 'absoluit-user-hub' ),
            'failed'              => __( 'Failed', 'absoluit-user-hub' ),
            'processing'          => __( 'Processing...', 'absoluit-user-hub' ),
            'complete'            => __( 'Complete!', 'absoluit-user-hub' ),
            'error'               => __( 'Error', 'absoluit-user-hub' ),
        ),
    ) );
}

/**
 * =============================================================
 *  PAGE RENDERERS
 * =============================================================
 */
function wpuhm_render_dashboard() {
    include WPUHM_PLUGIN_DIR . 'admin/views/dashboard.php';
}

function wpuhm_render_sites() {
    include WPUHM_PLUGIN_DIR . 'admin/views/sites.php';
}

function wpuhm_render_add_user() {
    include WPUHM_PLUGIN_DIR . 'admin/views/add-user.php';
}

function wpuhm_render_remove_user() {
    include WPUHM_PLUGIN_DIR . 'admin/views/remove-user.php';
}

function wpuhm_render_users() {
    include WPUHM_PLUGIN_DIR . 'admin/views/users.php';
}