import {z} from 'zod'

export type GetApiApiV1DedicatedEngineSchemasDedicatedEngineSchemaIDArgs = {dedicatedEngineSchemaID: number};

export type GetApiApiV1DedicatedEngineSchemasDedicatedEngineSchemaIDOptions = {baseUrl?: string | undefined, BearerAuth?: string | undefined, fetch?: typeof fetch | undefined};

export const source = z.object({queue: z.string().optional(), schema_id: z.string().optional()});

export const engineDatapoint = z.object({category: z.literal("datapoint").optional(), engine_output_id: z.string().optional(), label: z.string().optional(), trained: z.boolean().optional(), type: z.enum(["number", "string", "date", "enum"]).optional(), description: z.string().optional(), sources: z.array(source).optional()});

export const engineTuple = z.object({category: z.literal("tuple").optional(), children: z.array(engineDatapoint).optional()});

export const multivalueWithTuple = z.object({category: z.literal("multivalue").optional(), engine_output_id: z.string().optional(), label: z.string().optional(), trained: z.boolean().optional(), type: z.enum(["grid", "freeform"]).optional(), description: z.string().optional(), children: engineTuple.optional()});

export const multivalueWithDatapoint = z.object({category: z.literal("multivalue").optional(), children: engineDatapoint.optional()});

export const field = z.union([multivalueWithTuple, multivalueWithDatapoint, engineDatapoint]);

export const engineContent = z.object({training_queues: z.array(z.string()).optional(), fields: z.array(field).optional()});

export const dedicatedEngineSchema = z.object({id: z.number().int(), url: z.string(), content: engineContent});

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
};

/**
 * Retrieve dedicated engine schema
 * 
 * GET /api/v1/dedicated_engine_schemas/{dedicatedEngineSchemaID}
 */
export const getApiApiV1DedicatedEngineSchemasDedicatedEngineSchemaID = async (args: GetApiApiV1DedicatedEngineSchemasDedicatedEngineSchemaIDArgs, options?: GetApiApiV1DedicatedEngineSchemasDedicatedEngineSchemaIDOptions) => {
const {baseUrl = "https://example.rossum.app", fetch: fetchFn = fetch, BearerAuth} = options ?? {}

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

if (BearerAuth !== undefined) headers.set('authorization', `Bearer ${BearerAuth}`)

const url = `${baseUrl.replace(/\/+$/, '')}/api/v1/dedicated_engine_schemas/${encodeURIComponent(String(args.dedicatedEngineSchemaID))}${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(dedicatedEngineSchema, await res.json())
};