<?php
if ( ! defined( 'ABSPATH' ) ) { exit; }

class AIT_AIAA_Settings {

    protected static $defaults = array(
        'disabled_plugin'                   => false,
        'ui_button_label'                   => 'Help',
        'ui_panel_side'                     => 'right',

        // Button/panel is shown by default; hide only for selected roles.
        'ui_hide_for_roles'                 => array(),

        'guidance_disabled'                 => false,
        'guidance_max_items'                => 3,
        'guidance_warning_style'            => 'standard',

        'ai_disabled'                       => false,

        // AI is available by default; hide only for selected roles.
        'ai_hide_for_roles'                 => array(),

        'ai_response_style'                 => 'balanced',
        'ai_show_suggested_docs'            => true,
        'disable_extra_context_checkbox'    => 0,

        // OpenAI settings (needed for "Ask AI" to work immediately).
        'openai_api_key'                    => '',
        'openai_model'                      => 'gpt-4o',
        'openai_temperature'                => 0.3,
        'openai_max_output_tokens'          => 700,
        'openai_default_language'           => 'auto',
        

        'ai_include_site_context'           => true,
        'ai_daily_limit'                    => 50,
        'ai_daily_limits_per_role'          => array(), // infinite_table
        'debug_logging'                     => false,
    );

    public function __construct() {
        // Register SAP settings page on init like the other plugins (priority 11).
        add_action( 'init', array( $this, 'register_settings_page' ), 11 );
    }

    public static function get_defaults() {
        return apply_filters( 'ait_aiaa_settings_defaults', self::$defaults );
    }

    public static function get_options() {
        $defaults = self::get_defaults();
        $saved = get_option( AIT_AIAA_OPTION, array() );
        if ( ! is_array( $saved ) ) { $saved = array(); }

        // Back-compat: older versions used "enabled" / "guidance_enabled".
        if ( isset( $saved['enabled'] ) && ! isset( $saved['disabled_plugin'] ) ) {
            $saved['disabled_plugin'] = empty( $saved['enabled'] ) ? true : false;
        }
        if ( isset( $saved['guidance_enabled'] ) && ! isset( $saved['guidance_disabled'] ) ) {
            $saved['guidance_disabled'] = empty( $saved['guidance_enabled'] ) ? true : false;
        }

        $merged = array_merge( $defaults, $saved );

        // Normalize language option (Auto by default).
        if ( empty( $merged['openai_default_language'] ) ) {
            $merged['openai_default_language'] = 'auto';
        }
        $opts = self::get_language_options();
        if ( ! isset( $opts[ $merged['openai_default_language'] ] ) ) {
            $merged['openai_default_language'] = 'auto';
        }

        return $merged;
    }

    public static function get( $key ) {
        $options = self::get_options();
        return isset( $options[ $key ] ) ? $options[ $key ] : null;
    }

    public static function update( $key, $value ) {
        $options = self::get_options();
        $options[ $key ] = $value;
        return update_option( AIT_AIAA_OPTION, $options );
    }

    public static function reset() {
        return update_option( AIT_AIAA_OPTION, self::$defaults );
    }

    public function register_settings_page() {

        if ( ! is_admin() ) { return; }
        if ( ! current_user_can( 'manage_options' ) ) { return; }

        // Load SAP.
        require_once AIT_AIAA_PLUGIN_DIR . 'lib/simple-admin-pages/simple-admin-pages.php';

        // Initialize SAP library.
        if ( ! function_exists( 'sap_initialize_library' ) ) { return; }

        $sap = sap_initialize_library( array(
            'version'  => '2.7.3',
            'theme'    => 'ait',
            'lib_url'  => AIT_AIAA_PLUGIN_URL . 'lib/simple-admin-pages/',
        ) );

        $sap->add_page(
            'submenu',
            array(
                'id'            => AIT_AIAA_OPTION,
                'title'         => __( 'Settings', 'ait-ai-admin-assistance' ),
                'menu_title'    => __( 'Settings', 'ait-ai-admin-assistance' ),
                'parent_menu'   => 'edit.php?post_type=' . AIT_AIAA_Guidance_CPT::CPT,
                'description'   => '',
                'capability'    => 'manage_options',
                'default_tab'   => 'ait_aiaa_license',
            )
        );

        $sap->add_section(
            'ait-aiaa-settings',
            array(
                'id'            => 'ait_aiaa_license_tab',
                'title'         => __('License', 'ait-ai-admin-assistance'),
                'is_tab'        => true,
                'icon'          => 'admin-network',
                'rank'          => 0,
            )
        );

        $sap->add_section(
            'ait-aiaa-settings',
            array(
                'id'            => 'ait_aiaa_dashboard',
                'title'         => __( 'Dashboard', 'ait-ai-admin-assistance' ),
                'tab'             => 'ait_aiaa_license_tab',
            )
        );

        $sap->add_setting(
            'ait-aiaa-settings',
            'ait_aiaa_dashboard',
            'html',
            array(
                'id'            => 'ait_aiaa_license_grid',
                'title'         => __('License', 'ait-ai-admin-assistance' ),
                'html'          => [ 'AIT_AIAA_Dashboard', 'display_dashboard_license' ],
            )
        );

        // Tabs
        $sap->add_section( 
            AIT_AIAA_OPTION,
            array(
                'id'     => 'aiaa_tab_general',
                'title'  => __( 'General', 'ait-ai-admin-assistance' ),
                'is_tab' => true,
                'icon'   => 'text'
            ) 
        );
        $sap->add_section( 
            AIT_AIAA_OPTION,
            array(
                'id'     => 'aiaa_tab_guidance',
                'title'  => __( 'Designer Guidance', 'ait-ai-admin-assistance' ),
                'is_tab' => true,
                'icon'   => 'admin-users'
            )
        );
        $sap->add_section( 
            AIT_AIAA_OPTION,
            array(
                'id'     => 'aiaa_tab_ai',
                'title'  => __( 'AI Assistant', 'ait-ai-admin-assistance' ),
                'is_tab' => true,
                'icon'   => 'desktop'
            )
        );
        $sap->add_section( 
            AIT_AIAA_OPTION,
            array(
                'id'     => 'aiaa_tab_advanced',
                'title'  => __( 'Advanced', 'ait-ai-admin-assistance' ),
                'is_tab' => true,
                'icon'   => 'awards'
            ) 
        );
        $sap->add_section( 
            AIT_AIAA_OPTION,
            array(
                'id'     => 'aiaa_tab_styling',
                'title'  => __( 'Styling', 'ait-ai-admin-assistance' ),
                'is_tab' => true,
                'icon'   => 'welcome-widgets-menus'
            ) 
        );

        // ========== General ==========
        $sap->add_section( 
            AIT_AIAA_OPTION,
            array(
                'id'    => 'aiaa_general_section',
                'title' => __( 'General Settings', 'ait-ai-admin-assistance' ),
                'tab'   => 'aiaa_tab_general',
            ) 
        );

        $sap->add_setting( 
            AIT_AIAA_OPTION,
            'aiaa_general_section',
            'toggle', 
            array(
                'id'          => 'disabled_plugin',
                'title'       => __( 'Disable Plugin', 'ait-ai-admin-assistance' ),
                'description' => __( 'Disable the AI Admin Assistance panel in wp-admin.', 'ait-ai-admin-assistance' ),
            )
        );

        $sap->add_setting( 
            AIT_AIAA_OPTION,
            'aiaa_general_section',
            'text', 
                array(
                'id'          => 'ui_button_label',
                'title'       => __( 'Help Button Label', 'ait-ai-admin-assistance' ),
                'description' => __( 'Text shown on the help panel button.', 'ait-ai-admin-assistance' ),
            )
            );

        $sap->add_setting( 
            AIT_AIAA_OPTION,
            'aiaa_general_section',
            'radio',
            array(
                'id'          => 'ui_panel_side',
                'title'       => __( 'Panel Side', 'ait-ai-admin-assistance' ),
                'description' => __( 'Choose which side the panel opens from.', 'ait-ai-admin-assistance' ),
                'options'     => array(
                    'right' => __( 'Right', 'ait-ai-admin-assistance' ),
                    'left'  => __( 'Left', 'ait-ai-admin-assistance' ),
                ),
            )
        );

        $sap->add_setting( 
            AIT_AIAA_OPTION,
            'aiaa_general_section',
            'checkbox',
            array(
                'id'          => 'ui_hide_for_roles',
                'title'       => __( 'Hide for Roles', 'ait-ai-admin-assistance' ),
                'description' => __( 'By default, the help panel is shown to all roles that can access wp-admin. Select roles here to hide the panel button for them.', 'ait-ai-admin-assistance' ),
                'options'     => $this->get_roles_for_settings(),
            )
        );

                // ========== Designer Guidance ==========
        $sap->add_section( 
            AIT_AIAA_OPTION,
            array(
                'id'    => 'aiaa_guidance_section',
                'title' => __( 'Designer Guidance', 'ait-ai-admin-assistance' ),
                'tab'   => 'aiaa_tab_guidance',
            )
        );

        $sap->add_setting( 
            AIT_AIAA_OPTION,
            'aiaa_guidance_section',
            'toggle',
            array(
                'id'          => 'guidance_disabled',
                'title'       => __( 'Disable Designer Guidance', 'ait-ai-admin-assistance' ),
                'description' => __( 'Show designer-provided guidance content in the panel.', 'ait-ai-admin-assistance' ),
            )
        );

        $sap->add_setting( 
            AIT_AIAA_OPTION,
            'aiaa_guidance_section',
            'number', 
            array(
                'id'          => 'guidance_max_items',
                'title'       => __( 'Max Guidance Items', 'ait-ai-admin-assistance' ),
                'description' => __( 'Maximum number of guidance items to show for a screen.', 'ait-ai-admin-assistance' ),
                'min'         => 1,
                'max'         => 20,
            )
        );

        $sap->add_setting( 
            AIT_AIAA_OPTION,
            'aiaa_guidance_section',
            'select',
            array(
                'id'          => 'guidance_warning_style',
                'title'       => __( 'Warning Style', 'ait-ai-admin-assistance' ),
                'description' => __( 'Controls how "warning" guidance items will be styled.', 'ait-ai-admin-assistance' ),
                'options'     => array(
                    'subtle'   => __( 'Subtle', 'ait-ai-admin-assistance' ),
                    'standard' => __( 'Standard', 'ait-ai-admin-assistance' ),
                    'strong'   => __( 'Strong', 'ait-ai-admin-assistance' ),
                ),
            )
        );

        $sap->add_setting( 
            AIT_AIAA_OPTION,
            'aiaa_guidance_section',
            'infinite_table',
            array(
                'id'          => 'quick_links',
                'title'       => __( 'Quick Help Links', 'ait-ai-admin-assistance' ),
                'add_label'   => __( 'Add Link', 'ait-ai-admin-assistance' ),
                'del_label'   => __( 'Delete', 'ait-ai-admin-assistance' ),
                'description' => __( 'Optional list of quick links shown in the panel.', 'ait-ai-admin-assistance' ),
                'fields'     => array(
                    'label' => array( 
                        'label' => __( 'Label', 'ait-ai-admin-assistance' ), 
                        'type' => 'text',
                        'required' => true,
                    ),
                    'url' => array( 
                        'label' => __( 'URL', 'ait-ai-admin-assistance' ),
                        'type' => 'text',
                        'required' => true,
                    ),
                    'roles' => array(
                        'label' => __( 'Exclude Roles (comma-separated)', 'ait-ai-admin-assistance' ),
                        'type' => 'text',
                        'required' => false,
                    ),
                ),
            )
        );

        // ========== AI Assistant ==========
        $sap->add_section( 
            AIT_AIAA_OPTION,
            array(
                'id'    => 'aiaa_ai_section',
                'title' => __( 'AI Assistant', 'ait-ai-admin-assistance' ),
                'tab'   => 'aiaa_tab_ai',
            )
        );

        $sap->add_setting( 
            AIT_AIAA_OPTION,
            'aiaa_ai_section',
            'toggle',
                array(
                'id'          => 'ai_disabled',
                'title'       => __( 'Disable AI Assistant', 'ait-ai-admin-assistance' ),
                'description' => __( 'Prevent all users from asking questions about the current admin screen which the "Ask AI" tab in the helper panel.', 'ait-ai-admin-assistance' ),
            )
        );

        $sap->add_setting( 
            AIT_AIAA_OPTION,
            'aiaa_ai_section',
            'checkbox',
            array(
                'id'          => 'ai_hide_for_roles',
                'title'       => __( 'AI Hide for Roles', 'ait-ai-admin-assistance' ),
                'description' => __( 'By default, AI is available to all roles that can access wp-admin. Select roles here to hide the "Ask AI" tab and block AI usage for them.', 'ait-ai-admin-assistance' ),
                'options'     => $this->get_roles_for_settings(),
            )
        );

        $sap->add_setting( 
            AIT_AIAA_OPTION,
            'aiaa_ai_section',
            'radio',
            array(
                'id'          => 'ai_response_style',
                'title'       => __( 'Response Style', 'ait-ai-admin-assistance' ),
                'description' => __( 'How detailed AI answers should be.', 'ait-ai-admin-assistance' ),
                'options'     => array(
                    'concise'  => __( 'Concise', 'ait-ai-admin-assistance' ),
                    'balanced' => __( 'Balanced', 'ait-ai-admin-assistance' ),
                    'detailed' => __( 'Detailed', 'ait-ai-admin-assistance' ),
                ),
            )
        );

        $sap->add_setting( 
            AIT_AIAA_OPTION,
            'aiaa_ai_section',
            'toggle',
            array(
                'id'          => 'ai_show_suggested_docs',
                'title'       => __( 'Show Suggested Docs', 'ait-ai-admin-assistance' ),
                'description' => __( 'Show suggested WordPress documentation links in AI answers when available.', 'ait-ai-admin-assistance' ),

            ) 
        );

        // OpenAI
        $sap->add_setting( 
            AIT_AIAA_OPTION,
            'aiaa_ai_section',
            'text',
            array(
                'id'          => 'openai_api_key',
                'title'       => __( 'OpenAI API Key', 'ait-ai-admin-assistance' ),
                'description' => __( 'Server-side key used to call OpenAI. Keep this secret and do not paste it anywhere public.', 'ait-ai-admin-assistance' ),
            )
        );

        $sap->add_setting( 
            AIT_AIAA_OPTION, 
            'aiaa_ai_section',
            'select',
            [
                'id'            => 'openai_model',
                'title'         => __( 'OpenAI Model', 'ait-ai-admin-assistance' ),
                'description'   => __('Which OpenAI model should be used to handle the image processing requests?', 'ait-ai-admin-assistance'),
                'options'       => [
                    'gpt-5.1'        => __( 'GPT-5.1', 'ait-ai-admin-assistance' ),
                    'gpt-5'          => __( 'GPT-5', 'ait-ai-admin-assistance' ),
                    'gpt-5-mini'     => __( 'GPT-5 Mini', 'ait-ai-admin-assistance' ),
                    'gpt-4.1'        => __( 'GPT-4.1', 'ait-ai-admin-assistance' ),
                    'gpt-4o'         => __( 'GPT-4o', 'ait-ai-admin-assistance' ),
                    'gpt-3.5-turbo'  => __( 'GPT-3.5 Turbo', 'ait-ai-admin-assistance' ),
                ],
                'blank_option'  => false,
                'default'       => self::$defaults['openai_model'],
            ] 
        );

        $sap->add_setting( 
            AIT_AIAA_OPTION,
            'aiaa_ai_section',
            'number',
            array(
                'id'          => 'openai_temperature',
                'title'       => __( 'Temperature', 'ait-ai-admin-assistance' ),
                'description' => __( 'Controls randomness. Lower values are more deterministic.', 'ait-ai-admin-assistance' ),
                'min'         => 0,
                'max'         => 2,
                'step'        => 0.1,
            )
        );

        $sap->add_setting( 
            AIT_AIAA_OPTION,
            'aiaa_ai_section',
            'number',
            array(
                'id'          => 'openai_max_output_tokens',
                'title'       => __( 'Max Output Tokens', 'ait-ai-admin-assistance' ),
                'description' => __( 'Hard cap on response length. Leave blank for no limit.', 'ait-ai-admin-assistance' ),
                'min'         => 0,
                'max'         => 4000,
                'step'        => 1,
            )
        );

        $sap->add_setting(
            AIT_AIAA_OPTION,
            'aiaa_ai_section',
            'select',
            array(
                'id'            => 'openai_default_language',
                'title'         => __('Language', 'ait-ai-admin-assistance' ),
                'description'   => __( 'Choose the response language, or leave on Auto to follow the user\'s language.', 'ait-ai-admin-assistance' ),
                'options'       => self::get_language_options(),
                'blank_option'  => false,
            )
        );

        // ========== Advanced ==========
        $sap->add_section( 
            AIT_AIAA_OPTION,
            array(
            'id'    => 'aiaa_advanced_section',
            'title' => __( 'Advanced', 'ait-ai-admin-assistance' ),
            'tab'   => 'aiaa_tab_advanced',
        ) );

        $sap->add_setting( 
            AIT_AIAA_OPTION,
            'aiaa_advanced_section',
            'toggle',
            array(
                'id'          => 'debug_logging',
                'title'       => __( 'Debug Logging', 'ait-ai-admin-assistance' ),
                'description' => __( 'Enable debug logging for troubleshooting.', 'ait-ai-admin-assistance' ),
            )
        );

        // ========== Styling ==========
        $sap->add_section( 
            AIT_AIAA_OPTION,
            array(
                'id'    => 'aiaa_styling_section',
                'title' => __( 'Styling', 'ait-ai-admin-assistance' ),
                'tab'   => 'aiaa_tab_styling',
            )
        );

        $sap = apply_filters( 'ait_aiaa_settings_page', $sap, $this );

        // Render
        $sap->add_admin_menus();
    }

    protected function get_roles_for_settings() {
        $roles = array();
        if ( function_exists( 'wp_roles' ) ) {
            $wp_roles = wp_roles();
            if ( $wp_roles && is_array( $wp_roles->roles ) ) {
                foreach ( $wp_roles->roles as $key => $role ) {
                    $roles[ $key ] = isset( $role['name'] ) ? $role['name'] : $key;
                }
            }
        }
        if ( empty( $roles ) ) {
            $roles = array(
                'administrator' => __( 'Administrator', 'ait-ai-admin-assistance' ),
                'editor'        => __( 'Editor', 'ait-ai-admin-assistance' ),
                'author'        => __( 'Author', 'ait-ai-admin-assistance' ),
                'contributor'   => __( 'Contributor', 'ait-ai-admin-assistance' ),
                'subscriber'    => __( 'Subscriber', 'ait-ai-admin-assistance' ),
            );
        }
        return $roles;
    }

    public static function get_language_options() {

        return [
            'auto' => __( 'Auto', 'ait-ai-admin-assistance' ),
            'af' => 'Afrikaans',
            'sq' => 'Shqip',
            'am' => 'አማርኛ',
            'ar' => 'العربية',
            'hy' => 'Հայերեն',
            'az' => 'Azərbaycan dili',
            'bn' => 'বাংলা',
            'bs' => 'Bosanski',
            'bg' => 'Български',
            'ca' => 'Català',
            'zh_CN' => '简体中文',
            'zh_TW' => '繁體中文',
            'hr' => 'Hrvatski',
            'cs' => 'Čeština',
            'da' => 'Dansk',
            'nl' => 'Nederlands',
            'en' => 'English',
            'et' => 'Eesti',
            'fi' => 'Suomi',
            'fr' => 'Français',
            'de' => 'Deutsch',
            'el' => 'Ελληνικά',
            'gu' => 'ગુજરાતી',
            'he' => 'עברית',
            'hi' => 'हिन्दी',
            'hu' => 'Magyar',
            'is' => 'Íslenska',
            'id' => 'Bahasa Indonesia',
            'it' => 'Italiano',
            'ja' => '日本語',
            'kn' => 'ಕನ್ನಡ',
            'ko' => '한국어',
            'lv' => 'Latviešu',
            'lt' => 'Lietuvių',
            'mk' => 'Македонски',
            'ms' => 'Bahasa Melayu',
            'ml' => 'മലയാളം',
            'mr' => 'मराठी',
            'ne' => 'नेपाली',
            'nb' => 'Norsk Bokmål',
            'fa' => 'فارسی',
            'pl' => 'Polski',
            'pt_BR' => 'Português do Brasil',
            'pt_PT' => 'Português',
            'pa' => 'ਪੰਜਾਬੀ',
            'ro' => 'Română',
            'ru' => 'Русский',
            'sr' => 'Српски',
            'si' => 'සිංහල',
            'sk' => 'Slovenčina',
            'sl' => 'Slovenščina',
            'es' => 'Español',
            'sv' => 'Svenska',
            'ta' => 'தமிழ்',
            'te' => 'తెలుగు',
            'th' => 'ไทย',
            'tr' => 'Türkçe',
            'uk' => 'Українська',
            'ur' => 'اردو',
            'vi' => 'Tiếng Việt',
            'zh_HK' => '香港中文版',
        ];
    }
}