import {z} from 'zod'

export type GetApiApiV1DatasetsArgs = {limit?: number | undefined, cursor?: string | undefined, status?: string | undefined, q?: string | undefined, created_after?: string | undefined, created_before?: string | undefined, sort?: string | undefined, sort_direction?: string | undefined, created_by_user_id?: string | undefined, type?: string | undefined};

export type GetApiApiV1DatasetsOptions = {baseUrl: string, bearer?: string | undefined, fetch?: typeof fetch | undefined};

export const datasetSummaryDto = z.object({dataset_id: z.string(), name: z.string().nullable().optional(), status: z.enum(["pending", "running", "awaiting_input", "succeeded", "failed"]), updated_at: z.string(), created_at: z.string(), row_count: z.number().int().nullable().optional(), description: z.string().nullable().optional()});

export const cursorListResponseDto = z.object({datasets: z.array(datasetSummaryDto), next_cursor: z.string().nullable().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
};

/**
 * List datasets
 * 
 * GET /api/v1/datasets
 */
export const getApiApiV1Datasets = async (args: GetApiApiV1DatasetsArgs, options: GetApiApiV1DatasetsOptions) => {
const {baseUrl, fetch: fetchFn = fetch, bearer} = options ?? {}

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

if (args.limit != null) query.append("limit", String(args.limit))
if (args.cursor != null) query.append("cursor", String(args.cursor))
if (args.status != null) query.append("status", String(args.status))
if (args.q != null) query.append("q", String(args.q))
if (args.created_after != null) query.append("created_after", String(args.created_after))
if (args.created_before != null) query.append("created_before", String(args.created_before))
if (args.sort != null) query.append("sort", String(args.sort))
if (args.sort_direction != null) query.append("sort_direction", String(args.sort_direction))
if (args.created_by_user_id != null) query.append("created_by_user_id", String(args.created_by_user_id))
if (args.type != null) query.append("type", String(args.type))
if (bearer !== undefined) headers.set('authorization', `Bearer ${bearer}`)

const url = `${baseUrl.replace(/\/+$/, '')}/api/v1/datasets${query.size > 0 ? `?${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(cursorListResponseDto, await res.json())
};