Function readProviderRequestCost

shared/registry/perplexity-billing.ts:24–34

(event: unknown)

// Read `usage.cost.request_cost` from a single response or stream event.
function readProviderRequestCost(event: unknown): ProviderRequestCostRead {
    const cost = (event as PerplexityCostOutput | undefined)?.usage?.cost;
    if (cost == null) return { status: "absent" };
    if (typeof cost !== "object") return { status: "malformed", raw: cost };
    if (!("request_cost" in cost)) return { status: "absent" };
    const value = cost.request_cost;
    if (typeof value !== "number" || !Number.isFinite(value) || value < 0) {
        return { status: "malformed", raw: value };
    }
    return { status: "ok", value };
}

function getPerplexityReportedRequestCost(
    output: unknown,