refactor(server): canonicalize service API (#31049)

packages/tui/src/util/model.ts

@@ -0,0 +1,28 @@
+import type { Provider } from "@opencode-ai/sdk/v2"
+
+export function parse(value: string) {
+  const [providerID, ...modelID] = value.split("/")
+  return { providerID, modelID: modelID.join("/") }
+}
+
+export function index(list: Provider[] | undefined) {
+  return new Map((list ?? []).map((item) => [item.id, item] as const))
+}
+
+export function get(list: Provider[] | ReadonlyMap<string, Provider> | undefined, providerID: string, modelID: string) {
+  const provider =
+    list instanceof Map
+      ? list.get(providerID)
+      : Array.isArray(list)
+        ? list.find((item) => item.id === providerID)
+        : undefined
+  return provider?.models[modelID]
+}
+
+export function name(
+  list: Provider[] | ReadonlyMap<string, Provider> | undefined,
+  providerID: string,
+  modelID: string,
+) {
+  return get(list, providerID, modelID)?.name ?? modelID
+}