Makelore 2.0 initial clean snapshot

electron/shared/pi-ai-model-cost.ts

@@ -0,0 +1,43 @@
+/**
+ * Per-million-token rates expected by `@mariozechner/pi-ai` `calculateCost`.
+ * Custom / synced catalog rows often omit pricing; zeros keep accounting stable
+ * and avoid `Cannot read properties of undefined (reading 'input')` when usage
+ * chunks arrive during openai-completions streaming.
+ */
+export const PI_AI_MODEL_ZERO_COST = {
+  input: 0,
+  output: 0,
+  cacheRead: 0,
+  cacheWrite: 0,
+} as const;
+
+export type PiAiModelCostRates = {
+  input: number;
+  output: number;
+  cacheRead: number;
+  cacheWrite: number;
+};
+
+export function normalizePiAiModelCost(existing: unknown): PiAiModelCostRates {
+  if (!existing || typeof existing !== 'object') {
+    return { ...PI_AI_MODEL_ZERO_COST };
+  }
+  const record = existing as Record<string, unknown>;
+  const num = (value: unknown) =>
+    typeof value === 'number' && Number.isFinite(value) ? value : 0;
+
+  return {
+    input: num(record.input),
+    output: num(record.output),
+    cacheRead: num(record.cacheRead),
+    cacheWrite: num(record.cacheWrite),
+  };
+}
+
+/** Entry shape suitable for local runtime provider model metadata. */
+export function piAiModelsJsonModelEntry(
+  id: string,
+  name: string = id,
+): { id: string; name: string; cost: PiAiModelCostRates } {
+  return { id, name, cost: normalizePiAiModelCost(undefined) };
+}