// ── Task statuses, in one place ───────────────────────────────────────────────
// `tasks.status` is a plain text column with no CHECK constraint, and until now
// the three values were retyped by hand in eight files — as a runtime allow-list,
// as a TS union, as kanban columns, as <select> options. Two of those copies
// dropped unknown values silently. Everything derives from here instead.
//
// No db import on purpose: client components import this file.

export const TASK_STATUSES = ["todo", "in_progress", "in_review", "done"] as const;

export type TaskStatus = (typeof TASK_STATUSES)[number];

export const TASK_STATUS_LABELS: Record<TaskStatus, string> = {
  todo: "Da fare",
  in_progress: "In corso",
  in_review: "In revisione",
  done: "Fatto",
};

export function isTaskStatus(value: string): value is TaskStatus {
  return (TASK_STATUSES as readonly string[]).includes(value);
}

// Guards the boundary where a raw DB string enters a typed union. Previously an
// `as` cast, which TypeScript does not check: a row holding an unknown status
// slipped through and then vanished from whichever board failed to match it.
export function normalizeTaskStatus(value: string): TaskStatus {
  return isTaskStatus(value) ? value : "todo";
}