import {
  Entity,
  PrimaryGeneratedColumn,
  Column,
  CreateDateColumn,
  UpdateDateColumn,
  Index,
  ManyToOne,
  JoinColumn,
} from 'typeorm';
import { PharmacyPrescription } from './prescription.entity';

export type DispensationStatus = 'pending' | 'processing' | 'completed' | 'cancelled' | 'returned';
export type DispensationType = 'full' | 'partial' | 'refill';

@Entity({ name: 'dispensations', schema: 'clinica' })
export class Dispensation {
  @PrimaryGeneratedColumn('uuid')
  id: string;

  @Index()
  @Column({ name: 'tenant_id', type: 'uuid' })
  tenantId: string;

  @Index()
  @Column({ name: 'dispensation_number', type: 'varchar', length: 50 })
  dispensationNumber: string;

  @Index()
  @Column({ name: 'prescription_id', type: 'uuid' })
  prescriptionId: string;

  @ManyToOne(() => PharmacyPrescription, (prescription) => prescription.dispensations)
  @JoinColumn({ name: 'prescription_id' })
  prescription: PharmacyPrescription;

  @Index()
  @Column({ name: 'patient_id', type: 'uuid' })
  patientId: string;

  @Column({ name: 'inventory_id', type: 'uuid', nullable: true })
  inventoryId?: string;

  @Column({ name: 'medication_id', type: 'uuid' })
  medicationId: string;

  @Column({ name: 'medication_name', type: 'varchar', length: 200 })
  medicationName: string;

  @Column({ name: 'batch_number', type: 'varchar', length: 100, nullable: true })
  batchNumber?: string;

  @Column({ name: 'lot_number', type: 'varchar', length: 100, nullable: true })
  lotNumber?: string;

  @Column({ name: 'quantity_requested', type: 'int' })
  quantityRequested: number;

  @Column({ name: 'quantity_dispensed', type: 'int' })
  quantityDispensed: number;

  @Column({ type: 'enum', enum: ['full', 'partial', 'refill'], default: 'full' })
  type: DispensationType;

  @Column({ type: 'enum', enum: ['pending', 'processing', 'completed', 'cancelled', 'returned'], default: 'pending' })
  status: DispensationStatus;

  @Column({ name: 'dispensed_by', type: 'uuid', nullable: true })
  dispensedBy?: string;

  @Column({ name: 'dispensed_at', type: 'timestamptz', nullable: true })
  dispensedAt?: Date;

  @Column({ name: 'verified_by', type: 'uuid', nullable: true })
  verifiedBy?: string;

  @Column({ name: 'verified_at', type: 'timestamptz', nullable: true })
  verifiedAt?: Date;

  @Column({ name: 'received_by', type: 'varchar', length: 200, nullable: true })
  receivedBy?: string;

  @Column({ name: 'receiver_relationship', type: 'varchar', length: 100, nullable: true })
  receiverRelationship?: string;

  @Column({ name: 'receiver_identification', type: 'varchar', length: 100, nullable: true })
  receiverIdentification?: string;

  @Column({ name: 'signature_captured', type: 'boolean', default: false })
  signatureCaptured: boolean;

  @Column({ name: 'unit_price', type: 'decimal', precision: 10, scale: 2, nullable: true })
  unitPrice?: number;

  @Column({ name: 'total_price', type: 'decimal', precision: 10, scale: 2, nullable: true })
  totalPrice?: number;

  @Column({ name: 'discount_amount', type: 'decimal', precision: 10, scale: 2, default: 0 })
  discountAmount: number;

  @Column({ name: 'insurance_covered', type: 'decimal', precision: 10, scale: 2, default: 0 })
  insuranceCovered: number;

  @Column({ name: 'patient_copay', type: 'decimal', precision: 10, scale: 2, nullable: true })
  patientCopay?: number;

  @Column({ type: 'text', nullable: true })
  instructions?: string;

  @Column({ name: 'counseling_provided', type: 'boolean', default: false })
  counselingProvided: boolean;

  @Column({ name: 'counseling_notes', type: 'text', nullable: true })
  counselingNotes?: string;

  @Column({ type: 'text', nullable: true })
  notes?: string;

  @Column({ name: 'cancelled_at', type: 'timestamptz', nullable: true })
  cancelledAt?: Date;

  @Column({ name: 'cancellation_reason', type: 'text', nullable: true })
  cancellationReason?: string;

  @Column({ name: 'returned_at', type: 'timestamptz', nullable: true })
  returnedAt?: Date;

  @Column({ name: 'return_reason', type: 'text', nullable: true })
  returnReason?: string;

  @Column({ name: 'return_quantity', type: 'int', nullable: true })
  returnQuantity?: number;

  @CreateDateColumn({ name: 'created_at', type: 'timestamptz' })
  createdAt: Date;

  @UpdateDateColumn({ name: 'updated_at', type: 'timestamptz' })
  updatedAt: Date;
}