import {z} from 'zod'

export type GetApiV1AppsAppIdMeasurerMeasurementsArgs = {start_time?: string | undefined, end_time?: string | undefined, parameter_set_id?: string | undefined, dataset_id?: string | undefined, field_name?: string | undefined, metric_name?: string | undefined, group_by?: Array<string> | undefined, 'X-Fields'?: unknown | undefined};

export type GetApiV1AppsAppIdMeasurerMeasurementsOptions = {baseUrl: string, apiToken?: string | undefined, fetch?: typeof fetch | undefined};

export const measurementRecord = z.object({field_name: z.string().optional(), metric_name: z.string().optional(), value: z.number().optional(), created_at: z.string().optional(), dataset_id: z.string().optional(), parameter_set_id: z.string().optional()});

export const measurementResponse = z.object({app_id: z.string().optional(), records: z.array(measurementRecord).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 measurements for the given app_id
 * 
 * GET /v1/apps/{app_id}/measurer/measurements
 */
export const getApiV1AppsAppIdMeasurerMeasurements = async (args: GetApiV1AppsAppIdMeasurerMeasurementsArgs, options: GetApiV1AppsAppIdMeasurerMeasurementsOptions) => {
const {baseUrl, fetch: fetchFn = fetch, apiToken} = options ?? {}

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

if (args.start_time != null) query.append("start_time", String(args.start_time))
if (args.end_time != null) query.append("end_time", String(args.end_time))
if (args.parameter_set_id != null) query.append("parameter_set_id", String(args.parameter_set_id))
if (args.dataset_id != null) query.append("dataset_id", String(args.dataset_id))
if (args.field_name != null) query.append("field_name", String(args.field_name))
if (args.metric_name != null) query.append("metric_name", String(args.metric_name))
for (const item of args.group_by ?? []) query.append("group_by", String(item))
if (args['X-Fields'] != null) headers.set("X-Fields", String(args['X-Fields']))
if (apiToken !== undefined) headers.set("API-KEY", apiToken)

const url = `${baseUrl.replace(/\/+$/, '')}/v1/apps/${encodeURIComponent(String(args.app_id))}/measurer/measurements${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(measurementResponse, await res.json())
};