<? php
/**
 * BM TRANSPORT Theme Functions
 * 
 * @package BM_Transport
 * @version 1.0.0
 */

// Prevent direct access
if ( ! defined( 'ABSPATH' ) ) {
    exit;
}

// ============================================
// THEME SETUP & INITIALIZATION
// ============================================

/**
 * Set up theme defaults and register support for various WordPress features. 
 */
function bm_transport_setup() {
    // Load text domain for translations
    load_theme_textdomain( 'bm-transport', get_template_directory() . '/languages' );
    
    // Add support for post thumbnails
    add_theme_support( 'post-thumbnails' );
    set_post_thumbnail_size( 1200, 800, true );
    
    // Add support for HTML5 markup
    add_theme_support( 'html5', array(
        'search-form',
        'comment-form',
        'comment-list',
        'gallery',
        'caption',
        'style',
        'script',
    ) );
    
    // Add support for custom logo
    add_theme_support( 'custom-logo', array(
        'height'      => 80,
        'width'       => 250,
        'flex-height' => true,
        'flex-width'  => true,
    ) );
    
    // Add support for custom colors
    add_theme_support( 'editor-color-palette', array(
        array(
            'name'  => __( 'Primary Blue', 'bm-transport' ),
            'slug'  => 'primary-blue',
            'color' => '#1e40af',
        ),
        array(
            'name'  => __( 'Secondary Orange', 'bm-transport' ),
            'slug'  => 'secondary-orange',
            'color' => '#f97316',
        ),
        array(
            'name'  => __( 'Dark Gray', 'bm-transport' ),
            'slug'  => 'dark-gray',
            'color' => '#0f172a',
        ),
        array(
            'name'  => __( 'Light Gray', 'bm-transport' ),
            'slug'  => 'light-gray',
            'color' => '#f3f4f6',
        ),
        array(
            'name'  => __( 'Success Green', 'bm-transport' ),
            'slug'  => 'success-green',
            'color' => '#10b981',
        ),
    ) );
    
    // Add support for wide align
    add_theme_support( 'align-wide' );
    
    // Add support for responsive embeds
    add_theme_support( 'responsive-embeds' );
    
    // Register navigation menus
    register_nav_menus( array(
        'primary'   => __( 'Primary Menu', 'bm-transport' ),
        'secondary' => __( 'Secondary Menu', 'bm-transport' ),
        'footer'    => __( 'Footer Menu', 'bm-transport' ),
    ) );
    
    // Add custom image sizes for logistics/transport
    add_image_size( 'hero-image', 1920, 600, true );
    add_image_size( 'service-card', 400, 300, true );
    add_image_size( 'testimonial-avatar', 80, 80, true );
    add_image_size( 'blog-featured', 800, 500, true );
}

add_action( 'after_setup_theme', 'bm_transport_setup' );

// ============================================
// ENQUEUE STYLESHEETS & SCRIPTS
// ============================================

/**
 * Enqueue theme stylesheets and scripts
 */
function bm_transport_enqueue_assets() {
    // Get theme version for cache busting
    $theme_version = wp_get_theme()->get( 'Version' );
    
    // Enqueue main stylesheet
    wp_enqueue_style(
        'bm-transport-main',
        get_stylesheet_uri(),
        array(),
        $theme_version,
        'all'
    );
    
    // Enqueue Google Fonts - Inter & Fira Code
    wp_enqueue_style(
        'bm-transport-fonts',
        'https://fonts.googleapis.com/css2?family=Fira+Code:wght@400;500;700&family=Inter:wght@300;400;500;600;700;800&display=swap',
        array(),
        null,
        'all'
    );
    
    // Enqueue Font Awesome icons
    wp_enqueue_style(
        'font-awesome',
        'https://cdnjs.cloudflare. com/ajax/libs/font-awesome/6.4.0/css/all.min.css',
        array(),
        '6.4.0',
        'all'
    );
    
    // Enqueue main JavaScript file
    wp_enqueue_script(
        'bm-transport-main',
        get_template_directory_uri() . '/assets/js/main.js',
        array(),
        $theme_version,
        true
    );
    
    // Enqueue jQuery if needed for backward compatibility
    wp_enqueue_script( 'jquery' );
    
    // Pass data to JavaScript
    wp_localize_script(
        'bm-transport-main',
        'bmTransport',
        array(
            'ajaxUrl'  => admin_url( 'admin-ajax.php' ),
            'siteUrl'  => site_url(),
            'themePath' => get_template_directory_uri(),
        )
    );
}

add_action( 'wp_enqueue_scripts', 'bm_transport_enqueue_assets' );

// ============================================
// ADMIN ENQUEUE STYLES
// ============================================

/**
 * Enqueue admin stylesheet for better editor experience
 */
function bm_transport_enqueue_admin_assets() {
    wp_enqueue_style(
        'bm-transport-admin',
        get_template_directory_uri() . '/assets/css/admin.css',
        array(),
        wp_get_theme()->get( 'Version' ),
        'all'
    );
}

add_action( 'admin_enqueue_scripts', 'bm_transport_enqueue_admin_assets' );

// ============================================
// WIDGET AREAS / SIDEBARS
// ============================================

/**
 * Register widget areas
 */
function bm_transport_widgets_init() {
    // Primary Sidebar
    register_sidebar( array(
        'name'          => __( 'Primary Sidebar', 'bm-transport' ),
        'id'            => 'primary-sidebar',
        'description'   => __( 'Main sidebar for blog posts and pages', 'bm-transport' ),
        'before_widget' => '<div id="%1$s" class="widget %2$s card mb-4">',
        'after_widget'  => '</div>',
        'before_title'  => '<h3 class="widget-title mb-3">',
        'after_title'   => '</h3>',
    ) );
    
    // Footer Widgets - 4 Columns
    for ( $i = 1; $i <= 4; $i++ ) {
        register_sidebar( array(
            'name'          => sprintf( __( 'Footer Widget %d', 'bm-transport' ), $i ),
            'id'            => 'footer-widget-' . $i,
            'description'   => sprintf( __( 'Footer widget area %d', 'bm-transport' ), $i ),
            'before_widget' => '<div id="%1$s" class="widget %2$s">',
            'after_widget'  => '</div>',
            'before_title'  => '<h4 class="widget-title mb-4 text-white font-weight-semibold">',
            'after_title'   => '</h4>',
        ) );
    }
    
    // Service Areas (Homepage)
    register_sidebar( array(
        'name'          => __( 'Service Highlights', 'bm-transport' ),
        'id'            => 'service-highlights',
        'description'   => __( 'Widget area for service highlights on homepage', 'bm-transport' ),
        'before_widget' => '<div id="%1$s" class="widget %2$s col-md-4">',
        'after_widget'  => '</div>',
        'before_title'  => '<h3 class="widget-title">',
        'after_title'   => '</h3>',
    ) );
}

add_action( 'widgets_init', 'bm_transport_widgets_init' );

// ============================================
// CUSTOM POST TYPES
// ============================================

/**
 * Register custom post type for Services
 */
function bm_transport_register_service_cpt() {
    $labels = array(
        'name'                  => __( 'Services', 'bm-transport' ),
        'singular_name'         => __( 'Service', 'bm-transport' ),
        'menu_name'             => __( 'Services', 'bm-transport' ),
        'name_admin_bar'        => __( 'Service', 'bm-transport' ),
        'add_new'               => __( 'Add New', 'bm-transport' ),
        'add_new_item'          => __( 'Add New Service', 'bm-transport' ),
        'new_item'              => __( 'New Service', 'bm-transport' ),
        'edit_item'             => __( 'Edit Service', 'bm-transport' ),
        'view_item'             => __( 'View Service', 'bm-transport' ),
        'all_items'             => __( 'All Services', 'bm-transport' ),
        'search_items'          => __( 'Search Services', 'bm-transport' ),
        'not_found'             => __( 'No services found', 'bm-transport' ),
    );
    
    $args = array(
        'labels'             => $labels,
        'description'        => __( 'Transport and logistics services', 'bm-transport' ),
        'public'             => true,
        'publicly_queryable' => true,
        'show_ui'            => true,
        'show_in_menu'       => true,
        'query_var'          => true,
        'rewrite'            => array( 'slug' => 'service' ),
        'capability_type'    => 'post',
        'has_archive'        => true,
        'hierarchical'       => false,
        'menu_position'      => 20,
        'menu_icon'          => 'dashicons-truck',
        'supports'           => array( 'title', 'editor', 'thumbnail', 'excerpt', 'custom-fields' ),
        'show_in_rest'       => true,
    );
    
    register_post_type( 'bm_service', $args );
}

add_action( 'init', 'bm_transport_register_service_cpt' );

/**
 * Register custom post type for Testimonials
 */
function bm_transport_register_testimonial_cpt() {
    $labels = array(
        'name'                  => __( 'Testimonials', 'bm-transport' ),
        'singular_name'         => __( 'Testimonial', 'bm-transport' ),
        'menu_name'             => __( 'Testimonials', 'bm-transport' ),
        'add_new'               => __( 'Add New', 'bm-transport' ),
        'add_new_item'          => __( 'Add New Testimonial', 'bm-transport' ),
        'edit_item'             => __( 'Edit Testimonial', 'bm-transport' ),
        'view_item'             => __( 'View Testimonial', 'bm-transport' ),
    );
    
    $args = array(
        'labels'             => $labels,
        'description'        => __( 'Client testimonials and reviews', 'bm-transport' ),
        'public'             => true,
        'publicly_queryable' => false,
        'show_ui'            => true,
        'show_in_menu'       => true,
        'query_var'          => true,
        'rewrite'            => false,
        'capability_type'    => 'post',
        'has_archive'        => false,
        'hierarchical'       => false,
        'menu_position'      => 21,
        'menu_icon'          => 'dashicons-format-quote',
        'supports'           => array( 'title', 'editor', 'thumbnail' ),
        'show_in_rest'       => true,
    );
    
    register_post_type( 'bm_testimonial', $args );
}

add_action( 'init', 'bm_transport_register_testimonial_cpt' );

// ============================================
// CUSTOM TAXONOMIES
// ============================================

/**
 * Register custom taxonomy for Services
 */
function bm_transport_register_service_taxonomy() {
    $labels = array(
        'name'                       => __( 'Service Categories', 'bm-transport' ),
        'singular_name'              => __( 'Service Category', 'bm-transport' ),
        'menu_name'                  => __( 'Categories', 'bm-transport' ),
        'search_items'               => __( 'Search Categories', 'bm-transport' ),
        'all_items'                  => __( 'All Categories', 'bm-transport' ),
        'edit_item'                  => __( 'Edit Category', 'bm-transport' ),
        'add_new_item'               => __( 'Add New Category', 'bm-transport' ),
    );
    
    $args = array(
        'labels'            => $labels,
        'hierarchical'      => true,
        'public'            => true,
        'show_ui'           => true,
        'show_admin_column' => true,
        'query_var'         => true,
        'rewrite'           => array( 'slug' => 'service-category' ),
        'show_in_rest'      => true,
    );
    
    register_taxonomy( 'bm_service_category', array( 'bm_service' ), $args );
}

add_action( 'init', 'bm_transport_register_service_taxonomy' );

// ============================================
// HELPER FUNCTIONS
// ============================================

/**
 * Get theme option
 */
function bm_transport_get_option( $option_name, $default = '' ) {
    return get_theme_mod( 'bm_transport_' . $option_name, $default );
}

/**
 * Get theme setting
 */
function bm_transport_get_setting( $setting_name, $default = '' ) {
    $settings = get_option( 'bm_transport_settings', array() );
    return isset( $settings[ $setting_name ] ) ? $settings[ $setting_name ] : $default;
}

/**
 * Get formatted phone number
 */
function bm_transport_get_phone() {
    return bm_transport_get_setting( 'phone', '9712627517' );
}

/**
 * Get formatted email
 */
function bm_transport_get_email() {
    return bm_transport_get_setting( 'email', 'support@bmtransport.in' );
}

/**
 * Get formatted address
 */
function bm_transport_get_address() {
    return bm_transport_get_setting( 'address', 'FIRST FLOOR SHOP NO 04, PARMESHWAR ARCADE, HALVAD, Gujarat - 363330' );
}

/**
 * Get custom logo
 */
function bm_transport_get_logo() {
    $custom_logo_id = get_theme_mod( 'custom_logo' );
    return $custom_logo_id ? wp_get_attachment_image_src( $custom_logo_id, 'full' ) : false;
}

/**
 * Display custom logo
 */
function bm_transport_the_logo() {
    $logo = bm_transport_get_logo();
    if ( $logo ) {
        echo '<img src="' . esc_url( $logo[0] ) . '" alt="' . esc_attr( get_bloginfo( 'name' ) ) . '" class="logo" />';
    } else {
        echo '<span class="logo-text">' . esc_html( get_bloginfo( 'name' ) ) . '</span>';
    }
}

/**
 * Get excerpt with custom length
 */
function bm_transport_get_excerpt( $post_id, $length = 20 ) {
    $post = get_post( $post_id );
    $excerpt = $post->post_excerpt ?  $post->post_excerpt : wp_trim_words( $post->post_content, $length );
    return apply_filters( 'the_excerpt', $excerpt );
}

/**
 * Truncate text
 */
function bm_transport_truncate_text( $text, $limit = 100 ) {
    if ( strlen( $text ) > $limit ) {
        return substr( $text, 0, $limit ) . '...';
    }
    return $text;
}

/**
 * Check if page is home
 */
function bm_transport_is_home() {
    return is_front_page() || is_home();
}

/**
 * Get theme color
 */
function bm_transport_get_color( $color_name = 'primary' ) {
    $colors = array(
        'primary'   => '#1e40af',
        'secondary' => '#f97316',
        'success'   => '#10b981',
        'danger'    => '#ef4444',
        'warning'   => '#f59e0b',
        'dark'      => '#0f172a',
    );
    
    return isset( $colors[ $color_name ] ) ? $colors[ $color_name ] : '#1e40af';
}

// ============================================
// CONTENT FILTERING & MODIFICATION
// ============================================

/**
 * Add custom classes to body tag
 */
function bm_transport_body_classes( $classes ) {
    // Add page type classes
    if ( is_single() ) {
        $classes[] = 'single-post';
        $classes[] = 'single-' . get_post_type();
    }
    
    if ( is_page() ) {
        $classes[] = 'page-' . get_the_ID();
    }
    
    if ( is_archive() ) {
        $classes[] = 'archive-page';
    }
    
    if ( is_search() ) {
        $classes[] = 'search-page';
    }
    
    // Add device classes
    if ( wp_is_mobile() ) {
        $classes[] = 'is-mobile';
    }
    
    return $classes;
}

add_filter( 'body_class', 'bm_transport_body_classes' );

/**
 * Remove unnecessary WordPress classes from posts
 */
function bm_transport_post_class( $classes ) {
    // Remove 'format-standard' class if present
    $classes = array_diff( $classes, array( 'format-standard' ) );
    
    return $classes;
}

add_filter( 'post_class', 'bm_transport_post_class' );

/**
 * Modify excerpt length
 */
function bm_transport_excerpt_length( $length ) {
    return 25; // Number of words
}

add_filter( 'excerpt_length', 'bm_transport_excerpt_length' );

/**
 * Modify excerpt more text
 */
function bm_transport_excerpt_more( $more ) {
    return '... <a href="' . esc_url( get_permalink() ) . '" class="read-more">Read More</a>';
}

add_filter( 'excerpt_more', 'bm_transport_excerpt_more' );

// ============================================
// SECURITY & PERFORMANCE
// ============================================

/**
 * Remove unnecessary WP version info
 */
function bm_transport_remove_version() {
    return '';
}

add_filter( 'the_generator', 'bm_transport_remove_version' );

/**
 * Disable XML-RPC
 */
add_filter( 'xmlrpc_enabled', '__return_false' );

/**
 * Lazy load images
 */
function bm_transport_add_image_loading_attr( $html, $post_id ) {
    return str_replace( '<img', '<img loading="lazy"', $html );
}

add_filter( 'wp_get_attachment_image', 'bm_transport_add_image_loading_attr', 10, 2 );

/**
 * Remove emoji scripts
 */
function bm_transport_disable_emojis() {
    remove_action( 'wp_head', 'print_emoji_detection_script', 7 );
    remove_action( 'wp_print_styles', 'print_emoji_styles' );
}

add_action( 'init', 'bm_transport_disable_emojis' );

// ============================================
// AJAX HANDLERS
// ============================================

/**
 * Handle contact form submission via AJAX
 */
function bm_transport_handle_contact_form() {
    // Verify nonce for security
    if ( !  isset( $_POST['nonce'] ) || ! wp_verify_nonce( $_POST['nonce'], 'bm_transport_contact_nonce' ) ) {
        wp_send_json_error( array( 'message' => __( 'Security check failed', 'bm-transport' ) ) );
    }
    
    // Get form data
    $name    = sanitize_text_field( $_POST['name'] ??  '' );
    $email   = sanitize_email( $_POST['email'] ?? '' );
    $phone   = sanitize_text_field( $_POST['phone'] ?? '' );
    $service = sanitize_text_field( $_POST['service'] ?? '' );
    $message = sanitize_textarea_field( $_POST['message'] ?? '' );
    
    // Validate required fields
    if ( empty( $name ) || empty( $email ) || empty( $message ) ) {
        wp_send_json_error( array( 'message' => __( 'Please fill all required fields', 'bm-transport' ) ) );
    }
    
    // Send email
    $to      = bm_transport_get_email();
    $subject = sprintf( __( 'New Contact Form Submission from %s', 'bm-transport' ), $name );
    $body    = sprintf(
        __( "Name: %s\nEmail: %s\nPhone:  %s\nService: %s\n\nMessage:\n%s", 'bm-transport' ),
        $name,
        $email,
        $phone,
        $service,
        $message
    );
    
    $headers = array( 'Content-Type: text/plain; charset=UTF-8' );
    $headers[] = 'From: ' . $email;
    
    $sent = wp_mail( $to, $subject, $body, $headers );
    
    if ( $sent ) {
        wp_send_json_success( array( 'message' => __( 'Message sent successfully! ', 'bm-transport' ) ) );
    } else {
        wp_send_json_error( array( 'message' => __( 'Failed to send message. Please try again.', 'bm-transport' ) ) );
    }
}

add_action( 'wp_ajax_bm_transport_contact_form', 'bm_transport_handle_contact_form' );
add_action( 'wp_ajax_nopriv_bm_transport_contact_form', 'bm_transport_handle_contact_form' );

// ============================================
// INITIALIZATION HOOKS
// ============================================

/**
 * Initialize theme on admin_init
 */
function bm_transport_admin_init() {
    // Register settings
    register_setting( 'bm_transport', 'bm_transport_settings' );
}

add_action( 'admin_init', 'bm_transport_admin_init' );

/**
 * Add theme customizer options
 */
function bm_transport_customize_register( $wp_customize ) {
    // Add Section for Contact Information
    $wp_customize->add_section(
        'bm_transport_contact',
        array(
            'title'    => __( 'Contact Information', 'bm-transport' ),
            'priority' => 30,
        )
    );
    
    // Phone Setting
    $wp_customize->add_setting(
        'bm_transport_phone',
        array(
            'default'           => '9712627517',
            'sanitize_callback' => 'sanitize_text_field',
        )
    );
    
    $wp_customize->add_control(
        'bm_transport_phone',
        array(
            'label'    => __( 'Phone Number', 'bm-transport' ),
            'section'  => 'bm_transport_contact',
            'type'     => 'text',
        )
    );
    
    // Email Setting
    $wp_customize->add_setting(
        'bm_transport_email',
        array(
            'default'           => 'support@bmtransport.in',
            'sanitize_callback' => 'sanitize_email',
        )
    );
    
    $wp_customize->add_control(
        'bm_transport_email',
        array(
            'label'    => __( 'Email Address', 'bm-transport' ),
            'section'  => 'bm_transport_contact',
            'type'     => 'email',
        )
    );
    
    // Address Setting
    $wp_customize->add_setting(
        'bm_transport_address',
        array(
            'default'           => 'FIRST FLOOR SHOP NO 04, PARMESHWAR ARCADE, HALVAD, Gujarat - 363330',
            'sanitize_callback' => 'sanitize_textarea_field',
        )
    );
    
    $wp_customize->add_control(
        'bm_transport_address',
        array(
            'label'    => __( 'Business Address', 'bm-transport' ),
            'section'  => 'bm_transport_contact',
            'type'     => 'textarea',
        )
    );
}

add_action( 'customize_register', 'bm_transport_customize_register' );

/**
 * End of functions. php
 * 
 * @package BM_Transport
 */
?><?xml version="1.0" encoding="UTF-8"?>
<?xml-stylesheet type="text/xsl" href="https://bmtransport.in/wp-sitemap-index.xsl" ?>
<sitemapindex xmlns="http://www.sitemaps.org/schemas/sitemap/0.9"><sitemap><loc>https://bmtransport.in/wp-sitemap-posts-post-1.xml</loc></sitemap><sitemap><loc>https://bmtransport.in/wp-sitemap-posts-page-1.xml</loc></sitemap><sitemap><loc>https://bmtransport.in/wp-sitemap-taxonomies-category-1.xml</loc></sitemap><sitemap><loc>https://bmtransport.in/wp-sitemap-users-1.xml</loc></sitemap></sitemapindex>