import {z} from 'zod'

export type GetApiPatientsIdMedicationsArgs = {id: string};

export type GetApiPatientsIdMedicationsOptions = {baseUrl?: string | undefined, Bearer?: string | undefined, fetch?: typeof fetch | undefined};

export const patientMedicationDto = z.object({id: z.string().optional(), type: z.string().optional(), inventoryItemId: z.string().nullable().optional(), medicationName: z.string().optional(), strength: z.string().nullable().optional(), dosage: z.string().nullable().optional(), frequency: z.string().nullable().optional(), duration: z.string().nullable().optional(), instructions: z.string().nullable().optional(), quantity: z.union([z.number(), z.string()]).optional(), refillsRemaining: z.union([z.number().int(), z.string()]).nullable().optional(), refillsPrn: z.boolean().optional(), status: z.string().optional(), prescribedDate: z.string().optional(), prescribedBy: z.string().optional(), lastFilledDate: z.string().nullable().optional(), fulfillmentMethod: z.string().nullable().optional(), estimateId: z.string().nullable().optional(), estimateNumber: z.string().nullable().optional(), estimateStatus: z.string().nullable().optional(), invoiceId: z.string().nullable().optional(), rxRequired: z.boolean().optional(), controlledSubstanceSchedule: z.union([z.number().int(), z.string()]).nullable().optional(), distributionCategory: z.string().nullable().optional(), category: z.string().nullable().optional()});

export const patientMedicationsResponseDto = z.object({prescriptions: z.array(patientMedicationDto).optional(), otcDispenses: z.array(patientMedicationDto).optional(), totalCount: z.union([z.number().int(), z.string()]).optional()});

export const validateResponse = async <Output>(
  schema: {
    readonly '~standard': {
      readonly validate: (value: unknown) => ({ readonly value: Output; readonly issues?: undefined } | { readonly issues: ReadonlyArray<{ readonly message: string; readonly path?: ReadonlyArray<PropertyKey | { readonly key: PropertyKey }> | undefined }> }) | Promise<{ readonly value: Output; readonly issues?: undefined } | { readonly issues: ReadonlyArray<{ readonly message: string; readonly path?: ReadonlyArray<PropertyKey | { readonly key: PropertyKey }> | undefined }> }>
    }
  },
  value: unknown
): Promise<Output> => {
  const result = await schema['~standard'].validate(value)

  if (result.issues !== undefined) {
    const detail = result.issues
      .map(({ message, path }) =>
        path?.length
          ? `${path.map((segment) => String(typeof segment === 'object' ? segment.key : segment)).join('.')}: ${message}`
          : message
      )
      .join('; ')

    throw new Error(`Response does not match the schema: ${detail}`, { cause: { issues: result.issues } })
  }

  return result.value
};

/**
 * Get medication history for a patient including prescriptions and OTC dispenses
 * 
 * GET /Patients/{id}/medications
 */
export const getApiPatientsIdMedications = async (args: GetApiPatientsIdMedicationsArgs, options?: GetApiPatientsIdMedicationsOptions) => {
const {baseUrl = "https://api.clinicos.vet/backend/business", fetch: fetchFn = fetch, Bearer} = options ?? {}

const query = new URLSearchParams()
const headers = new Headers()
headers.set('accept', "application/json")

if (Bearer !== undefined) headers.set('authorization', `Bearer ${Bearer}`)

const url = `${baseUrl.replace(/\/+$/, '')}/Patients/${encodeURIComponent(String(args.id))}/medications${query.size > 0 ? `?${query}` : ''}`

const res = await fetchFn(url, {method: "GET", headers})

if (!res.ok) throw new Error(`Request failed with status ${res.status}`, {cause: {status: res.status, body: await res.text()}})

return validateResponse(patientMedicationsResponseDto, await res.json())
};