import { isContextOverflow, matchQuotaRule, matchTransientRule, normalizeProviderError, providerFamily } from "./rules";
import type { ClassifierInput, Verdict } from "./types";

export function classify(input: ClassifierInput, now = Date.now()): Verdict {
  const text = normalizeProviderError(input.errorMessage, input.diagnostics);
  if (isContextOverflow(text)) return { kind: "none", matchedRule: "context-overflow-guard" };

  const family = providerFamily(input.provider);
  const quota = matchQuotaRule(family, text, now);
  if (quota) return { kind: "quota", ...quota };

  const transient = matchTransientRule(text, input.httpHint?.status);
  if (transient) return { kind: "transient", matchedRule: transient };
  return { kind: family === "unknown" ? "unknown" : "none" };
}