<?php
/**
 * Stackwise functions and definitions
 *
 * @link https://developer.wordpress.org/themes/basics/theme-functions/
 *
 * @package Stackwise
 * @since 1.0.0
 */

if ( ! defined( 'ABSPATH' ) ) {
    exit; // Exit if accessed directly.
}

/**
 * Define theme constants
 */
define( 'STACKWISE_VERSION', '1.1.0' );
define( 'STACKWISE_DIR', get_template_directory() );
define( 'STACKWISE_URI', get_template_directory_uri() );

/**
 * Sets up theme defaults and registers support for various WordPress features.
 */
function stackwise_setup() {
    /*
     * Make theme available for translation.
     * Translations can be filed in the /languages/ directory.
     */
    load_theme_textdomain( 'stackwise', STACKWISE_DIR . '/languages' );

    // Add default posts and comments RSS feed links to head.
    add_theme_support( 'automatic-feed-links' );

    /*
     * Let WordPress manage the document title.
     */
    add_theme_support( 'title-tag' );

    /*
     * Enable support for Post Thumbnails on posts and pages.
     */
    add_theme_support( 'post-thumbnails' );

    // Set default thumbnail size
    set_post_thumbnail_size( 1200, 750, true );

    // Add custom image sizes
    add_image_size( 'stackwise-project', 800, 500, true );
    add_image_size( 'stackwise-blog', 600, 400, true );

    // Register navigation menus
    register_nav_menus(
        array(
            'primary' => esc_html__( 'Primary Menu', 'stackwise' ),
            'footer'  => esc_html__( 'Footer Menu', 'stackwise' ),
        )
    );

    /*
     * Switch default core markup for search form, comment form, and comments
     * to output valid HTML5.
     */
    add_theme_support(
        'html5',
        array(
            'search-form',
            'comment-form',
            'comment-list',
            'gallery',
            'caption',
            'style',
            'script',
        )
    );

    // Set up the WordPress core custom background feature.
    add_theme_support(
        'custom-background',
        apply_filters(
            'stackwise_custom_background_args',
            array(
                'default-color' => '0d1117',
                'default-image' => '',
            )
        )
    );

    // Add theme support for selective refresh for widgets.
    add_theme_support( 'customize-selective-refresh-widgets' );

    // Add support for custom logo.
    add_theme_support(
        'custom-logo',
        array(
            'height'      => 80,
            'width'       => 200,
            'flex-width'  => true,
            'flex-height' => true,
        )
    );

    // Add support for Block Styles.
    add_theme_support( 'wp-block-styles' );

    // Add support for full and wide align images.
    add_theme_support( 'align-wide' );

    // Add support for editor styles.
    add_theme_support( 'editor-styles' );

    // Enqueue editor styles.
    add_editor_style( 'assets/css/editor-style.css' );

    // Add support for responsive embedded content.
    add_theme_support( 'responsive-embeds' );

    // Add support for custom line height controls.
    add_theme_support( 'custom-line-height' );

    // Add support for experimental link color control.
    add_theme_support( 'link-color' );

    // Add support for custom units.
    add_theme_support( 'custom-units' );

    // Add support for custom spacing.
    add_theme_support( 'custom-spacing' );

    // Remove core block patterns.
    remove_theme_support( 'core-block-patterns' );

    // Add support for appearance tools.
    add_theme_support( 'appearance-tools' );

    // Add support for custom header image.
    add_theme_support(
        'custom-header',
        apply_filters(
            'stackwise_custom_header_args',
            array(
                'default-image'      => '',
                'default-text-color' => 'e6edf3',
                'width'              => 1200,
                'height'             => 400,
                'flex-height'        => true,
                'flex-width'         => true,
            )
        )
    );

    /**
     * Add support for Starter Content
     */
    add_theme_support(
        'starter-content',
        stackwise_get_starter_content()
    );
}
add_action( 'after_setup_theme', 'stackwise_setup' );

/**
 * Set the content width in pixels, based on the theme's design and stylesheet.
 *
 * @global int $content_width
 */
function stackwise_content_width() {
    $GLOBALS['content_width'] = apply_filters( 'stackwise_content_width', 1200 );
}
add_action( 'after_setup_theme', 'stackwise_content_width', 0 );

/**
 * Register widget area.
 */
function stackwise_widgets_init() {
    register_sidebar(
        array(
            'name'          => esc_html__( 'Sidebar', 'stackwise' ),
            'id'            => 'sidebar-1',
            'description'   => esc_html__( 'Add widgets here.', 'stackwise' ),
            'before_widget' => '<section id="%1$s" class="widget %2$s">',
            'after_widget'  => '</section>',
            'before_title'  => '<h3 class="widget-title">',
            'after_title'   => '</h3>',
        )
    );

    register_sidebar(
        array(
            'name'          => esc_html__( 'Footer Widget Area', 'stackwise' ),
            'id'            => 'footer-1',
            'description'   => esc_html__( 'Add footer widgets here.', 'stackwise' ),
            'before_widget' => '<div id="%1$s" class="widget %2$s">',
            'after_widget'  => '</div>',
            'before_title'  => '<h4 class="widget-title">',
            'after_title'   => '</h4>',
        )
    );
}
add_action( 'widgets_init', 'stackwise_widgets_init' );

/**
 * Enqueue scripts and styles.
 */
function stackwise_scripts() {
    // Enqueue Google Fonts
    wp_enqueue_style(
        'stackwise-google-fonts',
        stackwise_google_fonts_url(),
        array(),
        null
    );

    // Main stylesheet
    wp_enqueue_style(
        'stackwise-style',
        get_stylesheet_uri(),
        array(),
        STACKWISE_VERSION
    );

    // Add inline styles from customizer
    wp_add_inline_style( 'stackwise-style', stackwise_get_customizer_css() );

    // Navigation script
    wp_enqueue_script(
        'stackwise-navigation',
        STACKWISE_URI . '/assets/js/navigation.js',
        array(),
        STACKWISE_VERSION,
        true
    );

    // Theme toggle script
    wp_enqueue_script(
        'stackwise-theme-toggle',
        STACKWISE_URI . '/assets/js/theme-toggle.js',
        array(),
        STACKWISE_VERSION,
        true
    );

    // Typing effect (only on front page)
    if ( is_front_page() ) {
        wp_enqueue_script(
            'stackwise-typing-effect',
            STACKWISE_URI . '/assets/js/typing-effect.js',
            array(),
            STACKWISE_VERSION,
            true
        );

        // Pass data to typing effect script
        wp_localize_script(
            'stackwise-typing-effect',
            'stackwiseTyping',
            array(
                'strings' => stackwise_get_typing_strings(),
            )
        );
    }

    // Comment reply script
    if ( is_singular() && comments_open() && get_option( 'thread_comments' ) ) {
        wp_enqueue_script( 'comment-reply' );
    }
}
add_action( 'wp_enqueue_scripts', 'stackwise_scripts' );

/**
 * Get Google Fonts URL
 *
 * @return string Google Fonts URL
 */
function stackwise_google_fonts_url() {
    $fonts_url = '';
    $fonts     = array();
    $subsets   = 'latin,latin-ext';

    // Inter font
    $fonts[] = 'Inter:wght@400;500;600;700';

    // JetBrains Mono font
    $fonts[] = 'JetBrains+Mono:wght@400;500;600;700';

    if ( $fonts ) {
        $fonts_url = 'https://fonts.googleapis.com/css2?family=' . implode( '&family=', $fonts ) . '&display=swap';
    }

    return esc_url_raw( $fonts_url );
}

/**
 * Get typing effect strings from customizer
 *
 * @return array Array of strings for typing effect
 */
function stackwise_get_typing_strings() {
    $strings = get_theme_mod( 'stackwise_hero_typing_text', "Full Stack Developer\nFrontend Engineer\nBackend Developer\nUI/UX Enthusiast" );
    return array_map( 'trim', explode( "\n", $strings ) );
}

/**
 * Get customizer CSS
 *
 * @return string CSS from customizer options
 */
function stackwise_get_customizer_css() {
    $css = '';

    // Accent color
    $accent_color = get_theme_mod( 'stackwise_accent_color', '#58a6ff' );
    if ( $accent_color !== '#58a6ff' ) {
        $css .= ':root { --sw-color-accent: ' . esc_attr( $accent_color ) . '; }';
    }

    return $css;
}

/**
 * Get starter content
 *
 * @return array Starter content array
 */
function stackwise_get_starter_content() {
    return array(
        'posts'     => array(
            'home'    => array(
                'post_type'    => 'page',
                'post_title'   => esc_html_x( 'Home', 'Theme starter content', 'stackwise' ),
                'post_content' => '',
            ),
            'about'   => array(
                'post_type'    => 'page',
                'post_title'   => esc_html_x( 'About', 'Theme starter content', 'stackwise' ),
                'post_content' => esc_html_x( 'This is the about page. Tell visitors about yourself and your background.', 'Theme starter content', 'stackwise' ),
            ),
            'contact' => array(
                'post_type'    => 'page',
                'post_title'   => esc_html_x( 'Contact', 'Theme starter content', 'stackwise' ),
                'post_content' => esc_html_x( 'Get in touch! Add your contact form shortcode here.', 'Theme starter content', 'stackwise' ),
            ),
            'blog'    => array(
                'post_type'    => 'page',
                'post_title'   => esc_html_x( 'Blog', 'Theme starter content', 'stackwise' ),
                'post_content' => '',
            ),
            'project-one' => array(
                'post_type'    => 'post',
                'post_title'   => esc_html_x( 'E-Commerce Platform', 'Theme starter content', 'stackwise' ),
                'post_content' => esc_html_x( 'A full-featured e-commerce platform built with React and Node.js.', 'Theme starter content', 'stackwise' ),
            ),
            'project-two' => array(
                'post_type'    => 'post',
                'post_title'   => esc_html_x( 'Task Management App', 'Theme starter content', 'stackwise' ),
                'post_content' => esc_html_x( 'A collaborative task management application with real-time updates.', 'Theme starter content', 'stackwise' ),
            ),
        ),
        'nav_menus' => array(
            'primary' => array(
                'name'  => esc_html__( 'Primary Menu', 'stackwise' ),
                'items' => array(
                    'page_home'    => array(
                        'type'  => 'post_type',
                        'object'    => 'page',
                        'object_id' => '{{home}}',
                        'title'     => esc_html_x( 'Home', 'Theme starter content', 'stackwise' ),
                    ),
                    'page_about'   => array(
                        'type'      => 'post_type',
                        'object'    => 'page',
                        'object_id' => '{{about}}',
                        'title'     => esc_html_x( 'About', 'Theme starter content', 'stackwise' ),
                    ),
                    'page_blog'    => array(
                        'type'      => 'post_type',
                        'object'    => 'page',
                        'object_id' => '{{blog}}',
                        'title'     => esc_html_x( 'Blog', 'Theme starter content', 'stackwise' ),
                    ),
                    'page_contact' => array(
                        'type'      => 'post_type',
                        'object'    => 'page',
                        'object_id' => '{{contact}}',
                        'title'     => esc_html_x( 'Contact', 'Theme starter content', 'stackwise' ),
                    ),
                ),
            ),
        ),
        'options'   => array(
            'show_on_front'  => 'page',
            'page_on_front'  => '{{home}}',
            'page_for_posts' => '{{blog}}',
        ),
    );
}

/**
 * Include additional files
 */

// Custom template tags
require STACKWISE_DIR . '/inc/template-tags.php';

// Template functions
require STACKWISE_DIR . '/inc/template-functions.php';

// Customizer additions
require STACKWISE_DIR . '/inc/customizer.php';

// Block patterns
require STACKWISE_DIR . '/inc/block-patterns.php';

/**
 * Add custom body classes
 *
 * @param array $classes Classes for the body element.
 * @return array
 */
function stackwise_body_classes( $classes ) {
    // Add a class if there is a custom header
    if ( has_header_image() ) {
        $classes[] = 'has-header-image';
    }

    // Add class for front page
    if ( is_front_page() && ! is_home() ) {
        $classes[] = 'is-front-page';
    }

    // Add class for singular views
    if ( is_singular() ) {
        $classes[] = 'is-singular';
    }

    // Add class based on sidebar
    if ( ! is_active_sidebar( 'sidebar-1' ) ) {
        $classes[] = 'no-sidebar';
    }

    return $classes;
}
add_filter( 'body_class', 'stackwise_body_classes' );

/**
 * Add a pingback url auto-discovery header for single posts, pages, or attachments.
 */
function stackwise_pingback_header() {
    if ( is_singular() && pings_open() ) {
        printf( '<link rel="pingback" href="%s">', esc_url( get_bloginfo( 'pingback_url' ) ) );
    }
}
add_action( 'wp_head', 'stackwise_pingback_header' );

/**
 * Add preconnect for Google Fonts.
 *
 * @param array  $urls          URLs to print for resource hints.
 * @param string $relation_type The relation type the URLs are printed.
 * @return array URLs to print for resource hints.
 */
function stackwise_resource_hints( $urls, $relation_type ) {
    if ( 'preconnect' === $relation_type ) {
        $urls[] = array(
            'href' => 'https://fonts.googleapis.com',
        );
        $urls[] = array(
            'href' => 'https://fonts.gstatic.com',
            'crossorigin',
        );
    }

    return $urls;
}
add_filter( 'wp_resource_hints', 'stackwise_resource_hints', 10, 2 );

/**
 * Modify excerpt length
 *
 * @param int $length Excerpt length.
 * @return int Modified excerpt length.
 */
function stackwise_excerpt_length( $length ) {
    if ( is_admin() ) {
        return $length;
    }
    return 20;
}
add_filter( 'excerpt_length', 'stackwise_excerpt_length' );

/**
 * Modify excerpt more string
 *
 * @param string $more More string.
 * @return string Modified more string.
 */
function stackwise_excerpt_more( $more ) {
    if ( is_admin() ) {
        return $more;
    }
    return '&hellip;';
}
add_filter( 'excerpt_more', 'stackwise_excerpt_more' );

/**
 * Get project category for posts
 *
 * @return WP_Term|false Project category term or false.
 */
function stackwise_get_project_category() {
    $category_slug = get_theme_mod( 'stackwise_project_category', 'portfolio' );
    $category = get_term_by( 'slug', $category_slug, 'category' );
    return $category;
}

/**
 * Check if post is a project
 *
 * @param int|WP_Post $post Post ID or post object.
 * @return bool True if post is a project.
 */
function stackwise_is_project( $post = null ) {
    $post = get_post( $post );
    if ( ! $post ) {
        return false;
    }

    $project_category = stackwise_get_project_category();
    if ( ! $project_category ) {
        return false;
    }

    return has_category( $project_category->term_id, $post );
}

/**
 * Enqueue block editor assets
 */
function stackwise_block_editor_assets() {
    wp_enqueue_style(
        'stackwise-editor-style',
        STACKWISE_URI . '/assets/css/editor-style.css',
        array(),
        STACKWISE_VERSION
    );
}
add_action( 'enqueue_block_editor_assets', 'stackwise_block_editor_assets' );