import {z} from 'zod'

export type GetModels = Record<string, never>;

export type GetApiCustomersCUSTOMERIDAiModelsArgs = {body: GetModels};

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

export const trainingData = z.object({catalog: z.string(), signals: z.string()});

export const modelConfig = z.object({dataset_config: z.string().optional(), trainer_config: z.string().optional(), "trainer_config/text_processor_config": z.string().optional(), "trainer_config.encoder_config.rnn_names_list": z.array(z.string()).optional(), "trainer_config.encoder_config.rnn_units_list": z.array(z.number().int()).optional(), "trainer_config.trn_batch_size": z.number().int().optional(), "trainer_config.num_epochs": z.number().int().gte(1).lte(64).optional(), "trainer_config.monitor_patience": z.number().int().optional(), "trainer_config.encoder_config.emb_spdp": z.number().optional(), "trainer_config.encoder_config.emb_trainable": z.boolean().optional()});

export const deployments = z.array(z.object({id: z.string().optional(), region: z.string().optional(), state: z.string().optional(), deployedAt: z.string().optional()}));

export const responseGetModels = z.array(z.object({id: z.string().optional(), name: z.string().optional(), category: z.string().optional(), modelType: z.string().optional(), description: z.string().optional(), region: z.string().optional(), vectorSize: z.string().optional(), trainingData: trainingData.optional(), config: modelConfig.optional(), state: z.string().optional(), trainingStarted: z.string().optional(), trainingCompleted: z.string().optional(), createdBy: z.string().optional(), deployments: deployments.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 all models
 * 
 * GET /customers/{CUSTOMER_ID}/ai/models
 */
export const getApiCustomersCUSTOMERIDAiModels = async (args: GetApiCustomersCUSTOMERIDAiModelsArgs, options?: GetApiCustomersCUSTOMERIDAiModelsOptions) => {
const {baseUrl = "https://commerce_studio_id.experiencemanager.lucidworks.com", fetch: fetchFn = fetch, authToken} = options ?? {}

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

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

const url = `${baseUrl.replace(/\/+$/, '')}/customers/${encodeURIComponent(String(args.CUSTOMER_ID))}/ai/models${query.size > 0 ? `?${query}` : ''}`

const res = await fetchFn(url, {method: "GET", headers, body: JSON.stringify(args.body)})

if (!res.ok) throw new Error(`Request failed with status ${res.status}`, {cause: {status: res.status, body: await res.text()}})

return validateResponse(responseGetModels, await res.json())
};