import {z} from 'zod'

export type GetApiV1ForecastsModelsModelIdDemandArgs = {model_id: string, 'date.gt'?: string | undefined, 'date.gte'?: string | undefined, 'date.lt'?: string | undefined, 'date.lte'?: string | undefined, limit?: number | undefined, offset?: number | undefined};

export type GetApiV1ForecastsModelsModelIdDemandOptions = {baseUrl?: string | undefined, BearerAuth?: string | undefined, fetch?: typeof fetch | undefined};

export const publicDemand = z.object({date: z.string(), demand: z.number().gte(0)});

export const searchDemandResponse = z.object({errors: z.array(z.string()).optional(), warnings: z.array(z.string()).optional(), count: z.number().int(), next: z.string().nullable().optional(), previous: z.string().nullable().optional(), results: z.array(publicDemand).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 Demand Data
 * 
 * GET /v1/forecasts/models/{model_id}/demand
 */
export const getApiV1ForecastsModelsModelIdDemand = async (args: GetApiV1ForecastsModelsModelIdDemandArgs, options?: GetApiV1ForecastsModelsModelIdDemandOptions) => {
const {baseUrl = "https://api.predicthq.com", fetch: fetchFn = fetch, BearerAuth} = options ?? {}

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

if (args['date.gt'] != null) query.append("date.gt", String(args['date.gt']))
if (args['date.gte'] != null) query.append("date.gte", String(args['date.gte']))
if (args['date.lt'] != null) query.append("date.lt", String(args['date.lt']))
if (args['date.lte'] != null) query.append("date.lte", String(args['date.lte']))
if (args.limit != null) query.append("limit", String(args.limit))
if (args.offset != null) query.append("offset", String(args.offset))
if (BearerAuth !== undefined) headers.set('authorization', `Bearer ${BearerAuth}`)

const url = `${baseUrl.replace(/\/+$/, '')}/v1/forecasts/models/${encodeURIComponent(String(args.model_id))}/demand${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(searchDemandResponse, await res.json())
};