export const COMMISSION_STATUSES = [
  "NEW",
  "REVIEWING",
  "ACCEPTED",
  "REJECTED",
  "INPROGRESS",
  "COMPLETED",
  "SPAM",
] as const;

export type CommissionStatus = (typeof COMMISSION_STATUSES)[number];

function isCommissionStatus(value: string): value is CommissionStatus {
  return (COMMISSION_STATUSES as readonly string[]).includes(value);
}

export const BOARD_COLUMNS = {
  intake: {
    title: "Intake",
    statuses: ["NEW", "REVIEWING", "ACCEPTED"] as const,
    // when you drop into this column, we normalize to one canonical status:
    // NEW should usually be system-created; for manual moves, REVIEWING is safer.
    canonicalStatus: "REVIEWING" as const,
  },
  inProgress: {
    title: "In Progress",
    statuses: ["INPROGRESS"] as const,
    canonicalStatus: "INPROGRESS" as const,
  },
  completed: {
    title: "Completed",
    statuses: ["COMPLETED"] as const,
    canonicalStatus: "COMPLETED" as const,
  },
} as const;

const INTAKE_STATUSES = new Set<CommissionStatus>(BOARD_COLUMNS.intake.statuses);
const IN_PROGRESS_STATUSES = new Set<CommissionStatus>(BOARD_COLUMNS.inProgress.statuses);
const COMPLETED_STATUSES = new Set<CommissionStatus>(BOARD_COLUMNS.completed.statuses);

export type BoardColumnId = keyof typeof BOARD_COLUMNS;

export function columnIdForStatus(status: string): BoardColumnId | null {
  if (!isCommissionStatus(status)) return null;
  if (INTAKE_STATUSES.has(status)) return "intake";
  if (IN_PROGRESS_STATUSES.has(status)) return "inProgress";
  if (COMPLETED_STATUSES.has(status)) return "completed";
  return null;
}

export function canonicalStatusForColumn(col: BoardColumnId): CommissionStatus {
  return BOARD_COLUMNS[col].canonicalStatus;
}