import {z} from 'zod'

export type GetApiBatchesIdArgs = {id: string, limit?: number | undefined, offset?: number | undefined};

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

export const batchDetail = z.object({id: z.string(), name: z.string(), environment: z.enum(["sandbox", "production"]), status: z.enum(["importing", "pending", "processing", "completed", "cancelled", "failed"]), total: z.number().int().gte(0), completed: z.number().int().gte(0), failed: z.number().int().gte(0), created_at: z.string(), cancelled_at: z.string().nullable(), rows: z.array(z.object({row_number: z.number().int().gte(1), status: z.enum(["pending", "completed", "failed", "cancelled"]), screening_id: z.string().nullable(), error: z.object({code: z.string(), message: z.string()}).nullable()})), nextOffset: z.number().int().gte(0).nullable()});

export const getApiBatchesIdResponse = z.object({data: batchDetail});

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
};

/**
 * Read batch and row outcomes
 * 
 * GET /batches/{id}
 */
export const getApiBatchesId = async (args: GetApiBatchesIdArgs, options: GetApiBatchesIdOptions) => {
const {baseUrl, fetch: fetchFn = fetch, bearerAuth} = 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.offset != null) query.append("offset", String(args.offset))
if (bearerAuth !== undefined) headers.set('authorization', `Bearer ${bearerAuth}`)

const url = `${baseUrl.replace(/\/+$/, '')}/batches/${encodeURIComponent(String(args.id))}${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(getApiBatchesIdResponse, await res.json())
};