<?php
/**
 * Plugin Name: THALIM HAL Importer
 * Plugin URI: https://thalim.fr
 * Description: Import publications from HAL for the THALIM lab (structure_s:THALIM)
 * Version: 2.0.0
 * Author: THALIM Dev
 * Author URI: https://thalim.fr
 * License: GPL v2 or later
 * Text Domain: thalim-hal-importer
 */

// Prevent direct access
if (!defined('ABSPATH')) {
    exit;
}

// Plugin constants
define('THALIM_HAL_VERSION', '2.0.0');
define('THALIM_HAL_PLUGIN_DIR', plugin_dir_path(__FILE__));
define('THALIM_HAL_PLUGIN_URL', plugin_dir_url(__FILE__));

// HAL API configuration
define('THALIM_HAL_API_BASE', 'https://api.archives-ouvertes.fr/search/');
define('THALIM_HAL_STRUCT_ID', 254015);  // THALIM lab structure ID
define('THALIM_HAL_DOC_TYPES', ['ART', 'COUV', 'OUV', 'COMM', 'ISSUE', 'PROCEEDINGS', 'THESE', 'HDR', 'SON', 'VIDEO']);

/**
 * Main plugin class - minimal bootstrap
 */
class Thalim_HAL_Importer {

    private static $instance = null;

    public static function get_instance() {
        if (self::$instance === null) {
            self::$instance = new self();
        }
        return self::$instance;
    }

    private function __construct() {
        $this->load_dependencies();
        $this->init_hooks();
    }

    private function load_dependencies() {
        require_once THALIM_HAL_PLUGIN_DIR . 'includes/class-hal-api.php';
        require_once THALIM_HAL_PLUGIN_DIR . 'includes/class-admin-page.php';
        require_once THALIM_HAL_PLUGIN_DIR . 'includes/class-importer.php';
    }

    private function init_hooks() {
        add_action('admin_menu', [$this, 'add_admin_menu']);
    }

    public function add_admin_menu() {
        add_management_page(
            'HAL Import',
            'HAL Import',
            'edit_others_posts',
            'thalim-hal-importer',
            [$this, 'render_admin_page']
        );
    }

    public function render_admin_page() {
        $admin_page = new Thalim_HAL_Admin_Page();
        $admin_page->render();
    }
}

// Activation hook
register_activation_hook(__FILE__, function() {
    add_option('thalim_hal_version', THALIM_HAL_VERSION);
});

// Deactivation hook
register_deactivation_hook(__FILE__, function() {
    delete_transient('thalim_hal_preview_data');
});

// Initialize plugin
add_action('plugins_loaded', function() {
    Thalim_HAL_Importer::get_instance();
});