✨ feat: add Svelte actions and global stores for enhanced functionality

frontend/src/lib/utils.ts

@@ -0,0 +1,59 @@
+export function debounce<T extends (...args: any[]) => void>(func: T, wait: number): (...args: Parameters<T>) => void {
+    let timeout: NodeJS.Timeout | null = null
+
+    return (...args: Parameters<T>) => {
+        if (timeout) {
+            clearTimeout(timeout)
+        }
+        timeout = setTimeout(() => func(...args), wait)
+    }
+}
+
+export function formatNumber(number: number, decimals = 2): string {
+    return number.toFixed(decimals)
+}
+
+export function formatCurrency(amount: number, currency = "EUR", locale = "de-DE"): string {
+    // goja (tibi-server SSR runtime) does not provide Intl
+    if (typeof Intl === "undefined") {
+        const fixed = amount.toFixed(2).replace(".", ",")
+        return `${fixed}\u00A0${currency === "EUR" ? "€" : currency}`
+    }
+    return new Intl.NumberFormat(locale, {
+        style: "currency",
+        currency: currency,
+    }).format(amount)
+}
+
+export function generateMockImage(seed: string): string {
+    // Generate a consistent color based on the seed
+    const colors = [
+        "bg-red-200",
+        "bg-blue-200",
+        "bg-green-200",
+        "bg-yellow-200",
+        "bg-purple-200",
+        "bg-pink-200",
+        "bg-indigo-200",
+        "bg-teal-200",
+    ]
+
+    const colorIndex = seed.split("").reduce((acc, char) => acc + char.charCodeAt(0), 0) % colors.length
+    return colors[colorIndex]
+}
+
+export function highlightSearchTerm(text: string, searchTerm: string): string {
+    if (!searchTerm.trim()) return text
+
+    const regex = new RegExp(`(${searchTerm})`, "gi")
+    return text.replace(regex, '<mark class="bg-yellow-200">$1</mark>')
+}
+
+export function slugify(value: string): string {
+    return value
+        .normalize("NFD")
+        .replace(/[\u0300-\u036f]/g, "")
+        .toLowerCase()
+        .replace(/[^a-z0-9]+/g, "-")
+        .replace(/(^-|-$)/g, "")
+}