export type Role = "SUPER_USER" | "HR_ADMIN" | "FINANCE" | "MEMBER";

export type LocaleCode = "en" | "am";

export type OrgStatus =
  | "pending_activation"
  | "active"
  | "suspended"
  | "closed";

export type MemberStatus = "invited" | "active" | "inactive" | "offboarded";

export type PrescriptionStatus =
  | "submitted"
  | "under_review"
  | "approved"
  | "queried"
  | "rejected";

export type MigrationDataset =
  | "departments"
  | "packages"
  | "members"
  | "overrides"
  | "dependants"
  | "verification_ids"
  | "full_onboarding";

export type MigrationJobStatus =
  | "draft"
  | "validating"
  | "preview"
  | "committing"
  | "completed"
  | "failed"
  | "rolled_back";

export type ApprovalStatus = "pending" | "approved" | "flagged" | "rejected";

export type ContactChannel = "email" | "phone";

export interface SessionUser {
  id: string;
  email: string;
  name: string;
  roles: Role[];
  activeRole: Role;
  orgId: string;
  memberId?: string;
  locale: LocaleCode;
  avatarInitials: string;
  /** Optional profile photo; demos use deterministic DiceBear URLs */
  avatarUrl?: string;
}

export interface Organisation {
  id: string;
  legalName: string;
  tradeName: string;
  tin: string;
  status: OrgStatus;
  billingEmail: string;
  billingPhone: string;
  approxHeadcount: number;
  creditLimitEtb: number | null;
  creditUsedEtb: number;
  paymentTermsDays: number | null;
  priceListCode: string | null;
  contractStart: string | null;
  contractEnd: string | null;
  joinCode: string;
  allowedEmailDomains: string[];
  verificationMethod: "member_id" | "qr" | "phone_otp" | "none";
  maxDependantsPerMember: number;
  createdAt: string;
}

export interface OrgRegistrationRequest {
  id: string;
  contactName: string;
  organisationName: string;
  channel: ContactChannel;
  email?: string;
  phone?: string;
  notes?: string;
  status: "new" | "in_progress" | "converted" | "closed";
  createdAt: string;
}

export interface Department {
  id: string;
  orgId: string;
  name: string;
  siteName: string;
  parentId: string | null;
  subLimitEtb: number | null;
  spendEtb: number;
  memberCount: number;
}

export interface BenefitPackage {
  id: string;
  orgId: string;
  code: string;
  name: string;
  monthlyAllowanceEtb: number;
  copayPercent: number;
  categories: string[];
  exclusions: string[];
  perks: string[];
  annualCapEtb: number | null;
  active: boolean;
  memberCount: number;
}

export interface MemberOverride {
  memberId: string;
  monthlyAllowanceEtb?: number;
  copayPercent?: number;
  categories?: string[];
  notes?: string;
}

export interface Dependant {
  id: string;
  memberId: string;
  name: string;
  relationship: "spouse" | "child" | "parent" | "other";
  dateOfBirth: string;
  status: MemberStatus;
}

export interface Member {
  id: string;
  orgId: string;
  customerId: string;
  employeeId: string;
  name: string;
  email: string;
  phone: string;
  departmentId: string;
  packageId: string;
  status: MemberStatus;
  startDate: string;
  allowanceRemainingEtb: number;
  allowanceTotalEtb: number;
  override?: MemberOverride;
  dependants: Dependant[];
  verificationId?: string;
  /** Pharmacy ID card number shown on printable badge (e.g. GSH-1001) */
  cardId?: string;
  /** Optional profile photo; demos use deterministic DiceBear URLs */
  avatarUrl?: string;
  /** Clinical fields — withheld from HR_ADMIN / FINANCE */
  hasActiveRx?: boolean;
  lastRxStatus?: PrescriptionStatus;
}

export interface SpendRow {
  id: string;
  orgId: string;
  memberId: string;
  memberName: string;
  departmentId: string;
  departmentName: string;
  category: string;
  amountEtb: number;
  coveredEtb: number;
  memberPaidEtb: number;
  orderRef: string;
  occurredAt: string;
  /** Never expose Rx line items to HR/Finance */
  clinicalSummaryWithheld: true;
}

export interface Statement {
  id: string;
  orgId: string;
  period: string;
  totalSpendEtb: number;
  coveredEtb: number;
  creditUsedEtb: number;
  status: "draft" | "issued" | "paid";
  issuedAt: string | null;
}

export interface ApprovalRequest {
  id: string;
  orgId: string;
  memberName: string;
  departmentName: string;
  amountEtb: number;
  thresholdEtb: number;
  reason: string;
  status: ApprovalStatus;
  createdAt: string;
}

export interface MemberOrder {
  id: string;
  memberId: string;
  placedAt: string;
  status: "placed" | "processing" | "delivered" | "cancelled";
  totalEtb: number;
  coveredEtb: number;
  memberPaidEtb: number;
  itemCount: number;
}

export interface Prescription {
  id: string;
  memberId: string;
  status: PrescriptionStatus;
  submittedAt: string;
  updatedAt: string;
  pageCount: number;
  daysOfSupply?: number;
  pharmacistNote?: string;
  /** File names only in mock — real blobs go to storage */
  fileNames: string[];
}

export interface LoyaltySummary {
  points: number;
  tier: string;
  note: string;
}

export interface MigrationJob {
  id: string;
  orgId: string;
  dataset: MigrationDataset;
  status: MigrationJobStatus;
  fileName: string;
  createdBy: string;
  createdAt: string;
  rowCount: number;
  createCount: number;
  updateCount: number;
  skipCount: number;
  errorCount: number;
  errors: { row: number; field: string; message: string }[];
}

export interface Paginated<T> {
  data: T[];
  page: number;
  pageSize: number;
  total: number;
}

export interface ApiError {
  code: string;
  message: string;
  details?: Record<string, unknown>;
}