/**
 * Mirror of `convex/lib/agentKind.ts` for the CLI. The published package
 * cannot import from the Convex backend, so the normalization logic lives
 * here as well. Keep both copies in lockstep.
 */

export const KNOWN_AGENT_KINDS = [
  "claude_code",
  "codex",
  "cursor",
  "hermes",
  "openclaw",
  "other",
] as const;

export type KnownAgentKind = (typeof KNOWN_AGENT_KINDS)[number];

export const KNOWN_AGENT_KIND_SET: ReadonlySet<string> = new Set(
  KNOWN_AGENT_KINDS,
);

export const DEFAULT_AGENT_KIND: KnownAgentKind = "other";

export const KNOWN_AGENT_KIND_LABELS: Record<KnownAgentKind, string> = {
  claude_code: "Claude Code Agent",
  codex: "Codex Agent",
  cursor: "Cursor Agent",
  hermes: "Hermes Agent",
  openclaw: "OpenClaw Agent",
  other: "Agent",
};

const MAX_AGENT_KIND_LENGTH = 64;

/**
 * Normalize a user-supplied agent kind into the canonical form Dench stores.
 * Lower-cases, trims, replaces spaces and dashes with underscores, drops
 * unsafe characters, caps length, and falls back to `other` when the input
 * is missing or normalizes to empty.
 */
export function normalizeAgentKind(input: unknown): string {
  if (typeof input !== "string") return DEFAULT_AGENT_KIND;
  const trimmed = input.trim().toLowerCase();
  if (!trimmed) return DEFAULT_AGENT_KIND;

  const normalized = trimmed
    .replace(/[\s-]+/g, "_")
    .replace(/[^a-z0-9_]/g, "")
    .replace(/_+/g, "_")
    .replace(/^_+|_+$/g, "")
    .slice(0, MAX_AGENT_KIND_LENGTH);

  return normalized || DEFAULT_AGENT_KIND;
}

export function agentKindLabel(kind: string): string {
  return KNOWN_AGENT_KIND_LABELS[kind as KnownAgentKind] ?? "Agent";
}