import {z} from 'zod'

export type GetApiCareQueueArgs = {date?: string | undefined};

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

export const careQueueEntryDto = z.object({id: z.string().optional(), appointmentId: z.string().optional(), patientId: z.string().nullable().optional(), patientName: z.string().optional(), species: z.string().nullable().optional(), clientId: z.string().optional(), clientName: z.string().optional(), acuity: z.union([z.number().int(), z.string()]).optional(), status: z.string().optional(), etaRangeMinutes: z.string().optional(), enteredAt: z.string().optional(), issue: z.string().optional(), notes: z.string().nullable().optional(), queuePosition: z.union([z.number().int(), z.string()]).optional()});

export const careQueueProviderDto = z.object({id: z.string().optional(), name: z.string().optional(), role: z.string().optional(), status: z.string().optional(), complexity: z.string().optional(), interruptibility: z.union([z.number().int(), z.string()]).optional(), timeToCapacity: z.string().optional(), currentCases: z.array(z.string()).optional()});

export const careQueueEventDto = z.object({time: z.string().optional(), type: z.string().optional(), msg: z.string().optional(), critical: z.boolean().optional()});

export const careQueueStateDto = z.object({entries: z.array(careQueueEntryDto).optional(), providers: z.array(careQueueProviderDto).optional(), events: z.array(careQueueEventDto).optional(), timestamp: 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 the full CareQueue state for today (or the supplied date).
 * 
 * GET /CareQueue
 */
export const getApiCareQueue = async (args: GetApiCareQueueArgs, options?: GetApiCareQueueOptions) => {
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 (args.date != null) query.append("date", String(args.date))
if (Bearer !== undefined) headers.set('authorization', `Bearer ${Bearer}`)

const url = `${baseUrl.replace(/\/+$/, '')}/CareQueue${query.size > 0 ? `?${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(careQueueStateDto, await res.json())
};