<?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', '1.2.1' );
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. stackwise-project is used by the Projects section of the Stackwise Companion plugin.
	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' => '',
				'header-text'   => false,
				'width'         => 1200,
				'height'        => 900,
				'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__( '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(),
		STACKWISE_VERSION
	);

	// 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
	);

	// Fallback labels for the toggle button, used if its data attributes are missing.
	wp_localize_script(
		'stackwise-theme-toggle',
		'stackwiseToggle',
		array(
			'labelDark'  => __( 'Switch to dark mode', 'stackwise' ),
			'labelLight' => __( 'Switch to light mode', 'stackwise' ),
		)
	);

	// 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' );

/**
 * Apply the saved or system light mode before the first paint.
 *
 * The theme-toggle.js script loads in the footer, so without this script visitors
 * who chose light mode would briefly see the dark default. The script is a
 * fixed string and contains no user data.
 */
function stackwise_print_theme_mode_script() {
	wp_print_inline_script_tag(
		"(function(){try{var t=localStorage.getItem('stackwise-theme');if('light'===t||(!t&&window.matchMedia&&window.matchMedia('(prefers-color-scheme: light)').matches)){document.documentElement.setAttribute('data-theme','light');}}catch(e){}}());"
	);
}
add_action( 'wp_head', 'stackwise_print_theme_mode_script', 1 );

/**
 * 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 );
}

/**
 * Default lines for the hero typing effect, one per line.
 *
 * @return string Translated default lines separated by new lines.
 */
function stackwise_get_default_typing_text() {
	return implode(
		"\n",
		array(
			__( 'Full Stack Developer', 'stackwise' ),
			__( 'Frontend Engineer', 'stackwise' ),
			__( 'Backend Developer', 'stackwise' ),
			__( 'UI/UX Enthusiast', 'stackwise' ),
		)
	);
}

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

	return $css;
}

/**
 * Starter content for new sites.
 *
 * Shown in the Customizer preview on a fresh site and created only when the
 * user publishes the Customizer. It sets up the pages, front page sections,
 * menus and footer widgets so the theme looks complete from the start.
 *
 * @return array Starter content definition.
 */
function stackwise_get_starter_content() {
	$paragraph = static function ( $text ) {
		return '<!-- wp:paragraph --><p>' . esc_html( $text ) . '</p><!-- /wp:paragraph -->';
	};

	return array(
		'posts'      => array(
			'home'     => array(
				'post_type'    => 'page',
				'post_title'   => _x( 'Home', 'Theme starter content', 'stackwise' ),
				'post_content' => '',
			),
			'about'    => array(
				'post_type'    => 'page',
				'post_title'   => _x( 'About Me', 'Theme starter content', 'stackwise' ),
				'post_content' => $paragraph( _x( 'I am a developer who builds fast, accessible websites. Use this page to tell visitors who you are, what you work on and what you care about.', 'Theme starter content', 'stackwise' ) )
					. $paragraph( _x( 'Add a featured image to this page to show a photo next to this text on the front page.', 'Theme starter content', 'stackwise' ) ),
			),
			'services' => array(
				'post_type'    => 'page',
				'post_title'   => _x( 'What I Do', 'Theme starter content', 'stackwise' ),
				'post_content' => stackwise_pattern_skills_columns(),
			),
			'blog'     => array(
				'post_type'  => 'page',
				'post_title' => _x( 'Blog', 'Theme starter content', 'stackwise' ),
			),
			'contact'  => array(
				'post_type'    => 'page',
				'post_title'   => _x( 'Contact', 'Theme starter content', 'stackwise' ),
				'template'     => 'template-contact.php',
				'post_content' => $paragraph( _x( 'Have a project in mind or just want to say hello? Add a contact form block from your form plugin here, and set your email address and location in Appearance > Customize > Theme Options.', 'Theme starter content', 'stackwise' ) ),
			),
		),
		'options'    => array(
			'show_on_front'  => 'page',
			'page_on_front'  => '{{home}}',
			'page_for_posts' => '{{blog}}',
		),
		'theme_mods' => array(
			'stackwise_fp_about_page'    => '{{about}}',
			'stackwise_fp_services_page' => '{{services}}',
			'stackwise_fp_contact_page'  => '{{contact}}',
		),
		'widgets'    => array(
			'footer-1' => array(
				'text_about',
				'recent-posts',
			),
		),
		'nav_menus'  => array(
			'primary' => array(
				'name'  => __( 'Primary Menu', 'stackwise' ),
				'items' => array(
					'link_home',
					'link_about'   => array(
						'type'  => 'custom',
						'title' => _x( 'About', 'Theme starter content', 'stackwise' ),
						'url'   => home_url( '/#about' ),
					),
					'page_blog',
					'link_contact' => array(
						'type'  => 'custom',
						'title' => _x( 'Contact', 'Theme starter content', 'stackwise' ),
						'url'   => home_url( '/#contact' ),
					),
				),
			),
			'footer'  => array(
				'name'  => __( 'Footer Menu', 'stackwise' ),
				'items' => array(
					'page_about' => array(
						'type'      => 'post_type',
						'object'    => 'page',
						'object_id' => '{{about}}',
					),
					'page_blog',
					'page_contact',
				),
			),
		),
	);
}

/**
 * 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';
	}

	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' );