import {z} from 'zod'

export type GetApiConstraintsConstraintIdStatsArgs = {constraint_id: string, aggregation_period: 'hour' | 'day' | 'month' | 'year', api_key?: (string | null) | undefined, dataset_id: string, timezone?: (string | null) | undefined, start_time?: (string | null) | undefined, end_time?: (string | null) | undefined, price_threshold?: (number | null) | undefined, contingency_id?: (string | null) | undefined, 'x-api-key'?: (string | null) | undefined};

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

export const constraintStatsIntervalResponse = z.object({interval_start_utc: z.string(), binding_intervals: z.number().int().nullable(), shadow_price_min: z.number().nullable(), shadow_price_mean: z.number().nullable(), shadow_price_median: z.number().nullable(), shadow_price_max: z.number().nullable(), absolute_cost: z.number().nullable()});

export const getApiConstraintsConstraintIdStatsResponse = z.array(constraintStatsIntervalResponse);

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
};

/**
 * List Constraint Stats By Interval
 * 
 * GET /constraints/{constraint_id}/stats
 */
export const getApiConstraintsConstraintIdStats = async (args: GetApiConstraintsConstraintIdStatsArgs, options?: GetApiConstraintsConstraintIdStatsOptions) => {
const {baseUrl = "https://api.gridstatus.io/v1", fetch: fetchFn = fetch} = options ?? {}

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

if (args.aggregation_period != null) query.append("aggregation_period", String(args.aggregation_period))
if (args.api_key != null) query.append("api_key", String(args.api_key))
if (args.dataset_id != null) query.append("dataset_id", String(args.dataset_id))
if (args.timezone != null) query.append("timezone", String(args.timezone))
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.price_threshold != null) query.append("price_threshold", String(args.price_threshold))
if (args.contingency_id != null) query.append("contingency_id", String(args.contingency_id))
if (args['x-api-key'] != null) headers.set("x-api-key", String(args['x-api-key']))

const url = `${baseUrl.replace(/\/+$/, '')}/constraints/${encodeURIComponent(String(args.constraint_id))}/stats${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(getApiConstraintsConstraintIdStatsResponse, await res.json())
};