feat: implement auto-select icon (#2679)

packages/forms-collection/src/new-app/icon-matcher.ts

@@ -0,0 +1,30 @@
+import type { inferRouterOutputs } from "@trpc/server";
+
+import type { AppRouter } from "@homarr/api";
+
+type RouterOutput = inferRouterOutputs<AppRouter>;
+type IconGroupsOutput = RouterOutput["icon"]["findIcons"]["icons"];
+
+export const findBestIconMatch = (searchTerm: string, iconGroups: IconGroupsOutput): string | null => {
+  const nameLower = searchTerm.toLowerCase();
+  const allIcons = iconGroups.flatMap((group) => group.icons);
+
+  const getIconPriority = (iconUrl: string) => {
+    const fileName = iconUrl.toLowerCase().split("/").pop()?.split(".")[0];
+    if (!fileName) return -1;
+
+    const isSvg = iconUrl.endsWith(".svg");
+    const isExactMatch = fileName === nameLower;
+
+    if (isExactMatch) return isSvg ? 0 : 1;
+    if (fileName.includes(nameLower)) return isSvg ? 2 : 3;
+    return -1;
+  };
+
+  for (let priority = 0; priority <= 3; priority++) {
+    const match = allIcons.find((icon) => getIconPriority(icon.url) === priority);
+    if (match) return match.url;
+  }
+
+  return null;
+};