<?php
/**
 * Plugin Name:       AgentReadyScan - AI Visibility, llms.txt & Schema
 * Description:       Help ChatGPT, Claude, and Perplexity understand your business with AI-ready schema, llms.txt, agent-facts.html, and robots.txt support.
 * Version:           1.0.7
 * Requires at least: 6.0
 * Requires PHP:      7.4
 * Author:            AgentReadyScan
 * Author URI:        https://agentreadyscan.com
 * License:           GPL-2.0-or-later
 * License URI:       https://www.gnu.org/licenses/gpl-2.0.html
 * Text Domain:       agentreadyscan
 */

defined( 'ABSPATH' ) || exit;

define( 'ARSCAN_VERSION',     '1.0.7' );
define( 'ARSCAN_PLUGIN_FILE', __FILE__ );
define( 'ARSCAN_PLUGIN_DIR',  plugin_dir_path( __FILE__ ) );
define( 'ARSCAN_OPTION_KEY',  'arscan_settings' );
define( 'ARSCAN_API_BASE',    'https://www.agentreadyscan.com' );
define( 'ARSCAN_LICENSE_RECHECK_HOOK', 'arscan_weekly_license_recheck' );

// ---------------------------------------------------------------------------
// Autoload includes
// ---------------------------------------------------------------------------
require_once ARSCAN_PLUGIN_DIR . 'includes/class-arscan-settings.php';
require_once ARSCAN_PLUGIN_DIR . 'includes/class-arscan-injector.php';
require_once ARSCAN_PLUGIN_DIR . 'includes/class-arscan-files.php';
require_once ARSCAN_PLUGIN_DIR . 'includes/class-arscan-license.php';

// ---------------------------------------------------------------------------
// Bootstrap
// ---------------------------------------------------------------------------
add_action( 'plugins_loaded', 'arscan_init' );
add_filter( 'cron_schedules', 'arscan_add_weekly_cron_schedule' );
add_action( ARSCAN_LICENSE_RECHECK_HOOK, 'arscan_run_weekly_license_recheck' );

function arscan_init() {
    ARSCAN_Settings::get_instance();
    ARSCAN_Injector::get_instance();
}

// ---------------------------------------------------------------------------
// Activation / deactivation hooks
// ---------------------------------------------------------------------------
register_activation_hook( __FILE__, 'arscan_activate' );
register_deactivation_hook( __FILE__, 'arscan_deactivate' );

function arscan_activate() {
    // Seed default settings if not already present
    if ( ! get_option( ARSCAN_OPTION_KEY ) ) {
        update_option( ARSCAN_OPTION_KEY, arscan_default_settings() );
    }

    if ( ! wp_next_scheduled( ARSCAN_LICENSE_RECHECK_HOOK ) ) {
        wp_schedule_event( time() + HOUR_IN_SECONDS, 'weekly', ARSCAN_LICENSE_RECHECK_HOOK );
    }
}

function arscan_deactivate() {
    // Do not delete settings or files on deactivation — user may reactivate
    wp_clear_scheduled_hook( ARSCAN_LICENSE_RECHECK_HOOK );
}

// ---------------------------------------------------------------------------
// Default settings schema
// ---------------------------------------------------------------------------
function arscan_default_settings() {
    return array(
        // Business identity
        'business_name'    => get_bloginfo( 'name' ),
        'legal_name'       => get_bloginfo( 'name' ),
        'business_url'     => home_url(),
        'industry'         => 'general',
        'description'      => get_bloginfo( 'description' ),
        'phone'            => '',
        'email'            => get_option( 'admin_email' ),
        'contact_url'      => home_url( '/contact/' ),
        'address'          => '',
        'city'             => '',
        'state'            => '',
        'zip'              => '',
        'country'          => 'US',
        'service_area'     => '',
        'pricing_summary'  => '',
        'primary_contact'  => '',
        'founded_on'       => '',
        'explicit_exclusions' => '',

        // Services / hours
        'services'         => '',
        'hours'            => '',

        // Q&A pairs — array of [ 'q' => '...', 'a' => '...' ]
        // Seeded from industry template on first save; user edits from then on.
        'qa_pairs'         => array(),

        // Feature toggles
        'inject_jsonld'    => true,
        'inject_robots'    => true,
        'write_llms_txt'   => true,
        'write_agent_facts'=> true,

        // Pro license
        'api_key'          => '',
        'license_status'   => 'inactive',
        'license_message'  => '',
        'license_checked_at' => '',
        'license_renewal_date' => '',
        'license_error_code' => '',
        'license_last_sync_at' => '',
        'license_last_sync_message' => '',
        'license_features' => array(),
        'pro_health_status' => '',
        'pro_health_score' => '',
        'pro_health_checked_at' => '',
        'pro_health_issue_count' => 0,
        'pro_health_top_issues' => array(),
        'pro_health_recommendations' => array(),
        'pro_health_last_error' => '',

        // Misc — free tier defaults to Organization schema and general industry
        'schema_type'      => 'Organization',
        'last_written'     => '',
    );
}

// ---------------------------------------------------------------------------
// Pro license check
// ---------------------------------------------------------------------------

/**
 * Returns true only when the stored license has been verified as active.
 */
function arscan_is_pro(): bool {
    wp_cache_delete( ARSCAN_OPTION_KEY, 'options' );
    wp_cache_delete( 'alloptions', 'options' );
    $s = get_option( ARSCAN_OPTION_KEY, array() );
    return isset( $s['license_status'] ) && 'active' === $s['license_status'];
}

/**
 * Effective industry — returns the saved industry setting for all users.
 */
function arscan_effective_industry(): string {
    wp_cache_delete( ARSCAN_OPTION_KEY, 'options' );
    $s = get_option( ARSCAN_OPTION_KEY, arscan_default_settings() );
    return $s['industry'] ?? 'general';
}

/**
 * Default schema type for a detected industry.
 */
function arscan_default_schema_type_for_industry( string $industry ): string {
    $map = array(
        'dental'          => 'MedicalBusiness',
        'healthcare'      => 'MedicalBusiness',
        'personal_injury' => 'LegalService',
        'family_law'      => 'LegalService',
        'criminal_law'    => 'LegalService',
        'general_law'     => 'LegalService',
        'restaurant'      => 'Restaurant',
        'real_estate'     => 'RealEstateAgent',
        'home_services'   => 'HomeAndConstructionBusiness',
        'financial'       => 'FinancialService',
        'saas'            => 'SoftwareApplication',
        'ecommerce'       => 'Store',
        'education'       => 'EducationalOrganization',
        'professional'    => 'ProfessionalService',
        'general'         => 'LocalBusiness',
    );

    return $map[ $industry ] ?? 'LocalBusiness';
}

/**
 * Effective schema type — returns the industry-appropriate schema type for all users.
 */
function arscan_effective_schema_type(): string {
    wp_cache_delete( ARSCAN_OPTION_KEY, 'options' );
    $s = get_option( ARSCAN_OPTION_KEY, arscan_default_settings() );

    $schema = trim( (string) ( $s['schema_type'] ?? '' ) );
    if ( '' !== $schema && 'Organization' !== $schema ) {
        return $schema;
    }

    return arscan_default_schema_type_for_industry( arscan_effective_industry() );
}

function arscan_add_weekly_cron_schedule( array $schedules ): array {
    if ( ! isset( $schedules['weekly'] ) ) {
        $schedules['weekly'] = array(
            'interval' => WEEK_IN_SECONDS,
            'display'  => __( 'Once Weekly', 'agentreadyscan' ),
        );
    }

    return $schedules;
}

function arscan_run_weekly_license_recheck(): void {
    if ( ! class_exists( 'ARSCAN_License' ) ) {
        return;
    }

    wp_cache_delete( ARSCAN_OPTION_KEY, 'options' );
    $settings = get_option( ARSCAN_OPTION_KEY, arscan_default_settings() );
    $updated  = ARSCAN_License::maybe_refresh_license_state( $settings, WEEK_IN_SECONDS, true );

    if ( $updated !== $settings ) {
        update_option( ARSCAN_OPTION_KEY, $updated );
        wp_cache_delete( ARSCAN_OPTION_KEY, 'options' );
        wp_cache_delete( 'alloptions', 'options' );
    }
}