- Modernized authentication with the introduction of TenantProject

- Created a base mail template
- Adapt and improve document API to usage of catalogs and processors
- Adapt eveai_sync to new authentication mechanism and usage of catalogs and processors

integrations/Wordpress/eveai-chat-widget/admin/class-eveai-admin.php

@@ -0,0 +1,74 @@
+<?php
+class EveAI_Chat_Admin {
+    private $version;
+
+    public function __construct($version) {
+        $this->version = $version;
+    }
+
+    public function add_plugin_admin_menu() {
+        add_options_page(
+            'EveAI Chat Settings',          // Page title
+            'EveAI Chat',                   // Menu title
+            'manage_options',               // Capability required
+            'eveai-chat-settings',          // Menu slug
+            array($this, 'display_plugin_settings_page') // Callback function
+        );
+    }
+
+    public function register_settings() {
+        register_setting(
+            'eveai_chat_settings',         // Option group
+            'eveai_chat_settings',         // Option name
+            array($this, 'validate_settings') // Sanitization callback
+        );
+
+        add_settings_section(
+            'eveai_chat_general',          // ID
+            'General Settings',            // Title
+            array($this, 'section_info'),  // Callback
+            'eveai-chat-settings'          // Page
+        );
+
+        add_settings_field(
+            'api_key',                     // ID
+            'API Key',                     // Title
+            array($this, 'api_key_callback'), // Callback
+            'eveai-chat-settings',         // Page
+            'eveai_chat_general'           // Section
+        );
+
+        // Add more settings fields as needed
+    }
+
+    public function section_info() {
+        echo 'Enter your EveAI Chat configuration settings below:';
+    }
+
+    public function api_key_callback() {
+        $options = get_option('eveai_chat_settings');
+        $api_key = isset($options['api_key']) ? $options['api_key'] : '';
+        ?>
+        <input type="password"
+               id="api_key"
+               name="eveai_chat_settings[api_key]"
+               value="<?php echo esc_attr($api_key); ?>"
+               class="regular-text">
+        <p class="description">Enter your EveAI API key. You can find this in your EveAI dashboard.</p>
+        <?php
+    }
+
+    public function validate_settings($input) {
+        $new_input = array();
+
+        if(isset($input['api_key']))
+            $new_input['api_key'] = sanitize_text_field($input['api_key']);
+
+        return $new_input;
+    }
+
+    public function display_plugin_settings_page() {
+        // Load the settings page template
+        require_once plugin_dir_path(__FILE__) . 'views/settings-page.php';
+    }
+}