export const RECTIFICATION_CASE_STATUSES = [
  "draft",
  "collecting_evidence",
  "candidate_ready",
  "candidate_accepted",
  "needs_rebaseline",
  "paused",
  "confirmed",
  "closed",
  "abandoned",
  "superseded",
] as const;

export type RectificationCaseStatus = (typeof RECTIFICATION_CASE_STATUSES)[number];

/** Statuses that may be resumed by the user. */
export const RESUMABLE_CASE_STATUSES: readonly RectificationCaseStatus[] = [
  "draft",
  "collecting_evidence",
  "candidate_ready",
  "candidate_accepted",
  "needs_rebaseline",
  "paused",
];

/** Statuses that only allow read-only history access. */
export const TERMINAL_CASE_STATUSES: readonly RectificationCaseStatus[] = [
  "confirmed",
  "closed",
  "abandoned",
  "superseded",
];

export type OpenRectificationDisposition = "created" | "resumed" | "readonly";

/** Wire shape. Status stays a string so cached and older payloads still parse. */
export type OpenRectificationCaseResponseWire = Readonly<{
  disposition: OpenRectificationDisposition;
  caseId: string;
  sessionId: string;
  status: string;
  shouldStartOpening: boolean;
  skillVersion: string;
}>;

export type OpenRectificationCaseResponse = Omit<OpenRectificationCaseResponseWire, "status"> & {
  readonly status: RectificationCaseStatus;
};

type LatestResumableWire = Readonly<{
  caseId: string;
  status: string;
  lastActivityAt: string;
}>;

type LatestTerminalWire = Readonly<{
  caseId: string;
  status: string;
  hasUsableTime: boolean;
}>;

export type RectificationEntrySummaryWire = Readonly<{
  hasResumableCase: boolean;
  hasTerminalCaseWithTime: boolean;
  latestResumable: LatestResumableWire | null;
  latestTerminal: LatestTerminalWire | null;
}>;

export type RectificationEntrySummary = Readonly<{
  hasResumableCase: boolean;
  hasTerminalCaseWithTime: boolean;
  latestResumable: (Omit<LatestResumableWire, "status"> & {
    readonly status: RectificationCaseStatus;
  }) | null;
  latestTerminal: (Omit<LatestTerminalWire, "status"> & {
    readonly status: RectificationCaseStatus;
  }) | null;
}>;