Initialized repo

includes/Functions.php

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+<?php
+/**
+ * Theme Style Darkmode Functions.
+ * Load and enqueue variant-specific CSS based on system color scheme preference.
+ */
+
+namespace LasLie\ThemeStyleDarkmode;
+
+/**
+ * Load and enqueue variant-specific CSS.
+ * Reads the style variant from cookie and injects its color palette
+ * as CSS custom properties.
+ *
+ * @return void
+ */
+function enqueue_variant_styles(): void {
+    $variant = sanitize_text_field( wp_unslash( $_COOKIE['style_variant'] ?? '' ) );
+
+    if ( empty( $variant ) ) {
+        return;
+    }
+
+    // Sanitize the cookie value and build path to the JSON variant file
+    $variant = sanitize_file_name( $variant );
+    $variant_json = get_theme_file_path( "styles/{$variant}.json" );
+
+    // Stop if the JSON file does not exist
+    if ( ! file_exists( $variant_json ) ) {
+        return;
+    }
+
+    // Read and decode the JSON
+    $file_content = file_get_contents( $variant_json );
+    if ( false === $file_content ) {
+        return;
+    }
+
+    $data = json_decode( $file_content, true );
+    if ( empty( $data['settings']['color']['palette'] ) ) {
+        return;
+    }
+
+    // Build CSS variables from the JSON color palette
+    $css = ":root {\n";
+    foreach ( $data['settings']['color']['palette'] as $color ) {
+        $slug  = sanitize_title( $color['slug'] ?? '' );
+        $value = esc_attr( $color['color'] ?? '' );
+        if ( $slug && $value ) {
+            $css .= "  --wp--preset--color--{$slug}: {$value};\n";
+        }
+    }
+    $css .= "}\n";
+
+    // Optional: apply additional top-level text color if available
+    if ( ! empty( $data['styles']['color']['text'] ) ) {
+        $text_color = esc_attr( $data['styles']['color']['text'] );
+        $css .= "body { color: {$text_color}; }\n";
+    }
+
+    // Register an empty style handle and add the generated inline CSS
+    wp_register_style( 'll-tsd-variant-generated', false );
+    wp_enqueue_style( 'll-tsd-variant-generated' );
+    wp_add_inline_style( 'll-tsd-variant-generated', $css );
+}
+
+add_action( 'wp_enqueue_scripts', __NAMESPACE__ . '\enqueue_variant_styles', 99 );