Digital QR prescriptions: issue, scan, and fulfill

export type PrescriptionStatus =
  | 'active'
  | 'partially_fulfilled'
  | 'fulfilled'
  | 'expired';

export interface CreatePrescriptionRequest {
  patient_id: string;         // UUID of the patient receiving the prescription
  clinic_id: string;          // UUID of the issuing clinic
  expiration_date: string;    // ISO date string, e.g. "2025-08-15"
  notes?: string;             // Optional doctor notes visible to pharmacist
  lines: CreatePrescriptionLineRequest[];
}

export interface CreatePrescriptionLineRequest {
  medicine_id: string;          // UUID of the prescribed medicine
  quantity: number;             // Total units authorised
  dosage_instructions?: string; // e.g. "1 tablet every 8 hours with food"
}

{
  "patient_id": "clx2j4k0e0000abcd1234efgh",
  "clinic_id": "clx2j4k0e0001abcd5678ijkl",
  "expiration_date": "2025-08-15",
  "notes": "Take with plenty of water. Avoid alcohol.",
  "lines": [
    {
      "medicine_id": "clx2j4k0e0002abcdmnop",
      "quantity": 30,
      "dosage_instructions": "1 tablet every 8 hours"
    },
    {
      "medicine_id": "clx2j4k0e0003abcdqrst",
      "quantity": 10,
      "dosage_instructions": "1 capsule at night before sleep"
    }
  ]
}

export interface ValidatePrescriptionRequest {
  qr_data: string; // Raw QR payload scanned from the patient's screen
}

export interface FulfillPrescriptionRequest {
  pharmacy_id: string;         // UUID of the pharmacy processing the dispensing
  items: FulfillItemRequest[];
}

export interface FulfillItemRequest {
  prescription_line_id: string; // UUID of the specific line being fulfilled
  quantity_fulfilled: number;   // Units dispensed in this transaction
}