import {z} from 'zod'

export type MulticompleteRequest = {language?: string | undefined, query?: string | undefined};

export type CreateApiApiB2bV3SearchMulticompleteArgs = {body: MulticompleteRequest};

export type CreateApiApiB2bV3SearchMulticompleteOptions = {baseUrl: string, BasicAuth?: {username: string, password: string} | undefined, fetch?: typeof fetch | undefined};

export const multicompleteSuggestHotel = z.object({hid: z.number().int().optional(), id: z.string().optional(), name: z.string().optional(), region_id: z.number().int().optional()});

export const multicompleteSuggestRegion = z.object({country_code: z.string().optional(), id: z.number().int().optional(), name: z.string().optional(), type: z.string().optional()});

export const multicompleteResponse = z.object({hotels: z.array(multicompleteSuggestHotel).optional(), regions: z.array(multicompleteSuggestRegion).optional()});

export const v3DebugEndpoint = z.object({endpoint: z.string().optional(), is_active: z.boolean().optional(), is_limited: z.boolean().optional(), remaining: z.number().int().optional(), requests_number: z.number().int().optional(), reset: z.string().optional(), seconds_number: z.number().int().optional()});

export const v3Debug = z.object({api_endpoint: v3DebugEndpoint.optional(), api_key_id: z.number().int().optional(), key_id: z.number().int().optional(), method: z.string().optional(), real_ip: z.string().optional(), request: z.array(z.number().int()).optional(), request_id: z.string().optional(), utcnow: z.string().optional(), validation_error: z.string().optional()});

export const createApiApiB2bV3SearchMulticompleteResponse = z.object({data: multicompleteResponse.optional(), debug: v3Debug.optional(), error: z.string().optional(), status: z.string().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
};

/**
 * Autocomplete
 * 
 * POST /api/b2b/v3/search/multicomplete
 */
export const createApiApiB2bV3SearchMulticomplete = async (args: CreateApiApiB2bV3SearchMulticompleteArgs, options: CreateApiApiB2bV3SearchMulticompleteOptions) => {
const {baseUrl, fetch: fetchFn = fetch, BasicAuth} = options ?? {}

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

if (BasicAuth !== undefined) headers.set('authorization', `Basic ${btoa(`${BasicAuth.username}:${BasicAuth.password}`)}`)

const url = `${baseUrl.replace(/\/+$/, '')}/api/b2b/v3/search/multicomplete${query.size > 0 ? `?${query}` : ''}`

const res = await fetchFn(url, {method: "POST", 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(createApiApiB2bV3SearchMulticompleteResponse, await res.json())
};