import { z } from "zod";

// Shared between apps/api (server-side validation, source of truth) and
// apps/admin-web (client-side validation for instant feedback). Same
// rationale as schemas/auth.ts — one set of rules, French messages surfaced
// as-is in the admin login form.

/**
 * Payload accepted by `POST /admin/auth/login`. Deliberately its own schema
 * (not a re-export of `loginSchema`): the admin surface is a separate
 * contract from the end-user one even though the shape currently matches.
 */
export const adminLoginSchema = z.object({
  email: z.string().trim().toLowerCase().email("Email invalide"),
  password: z.string().min(1, "Le mot de passe est requis"),
});
/** Inferred TS type for {@link adminLoginSchema}'s validated output. */
export type AdminLoginInput = z.infer<typeof adminLoginSchema>;

/**
 * Query params for `GET /admin/metrics` — `?days=` bounds how far back the
 * time-series go (and how many daily buckets they carry). Coerced from the
 * query string; clamped to a sane window so a huge value can't make the
 * dashboard scan the whole history.
 */
export const getMetricsSchema = z.object({
  days: z.coerce.number().int().min(7).max(365).default(30),
});
/** Inferred TS type for {@link getMetricsSchema}'s validated output. */
export type GetMetricsInput = z.infer<typeof getMetricsSchema>;

/**
 * Payload of `POST /internal/tech-steps/heartbeat` — `services/tech-step-llm-worker`
 * (which has no inbound HTTP of its own) reporting that it's alive. Sent on
 * `boot`, on every scheduler `tick`, and after each `job` (with that job's
 * name, outcome and counts). The worker key is fixed server-side (only one
 * worker exists), so it isn't in the payload.
 */
export const workerHeartbeatSchema = z.object({
  event: z.enum(["boot", "tick", "job"]),
  /** The job that just ran — present only when `event === "job"`. */
  job: z.string().max(100).optional(),
  /** Whether that job succeeded — present only when `event === "job"`. */
  ok: z.boolean().optional(),
  /** Small `{ label: number }` summary of that job (e.g. `{ suggestions: 3 }`). */
  counts: z.record(z.string(), z.number()).optional(),
});
/** Inferred TS type for {@link workerHeartbeatSchema}'s validated output. */
export type WorkerHeartbeatInput = z.infer<typeof workerHeartbeatSchema>;