import {z} from 'zod'

export type GetApiApiV1WebhooksPostFieldsOptions = {baseUrl?: string | undefined, basic?: {username: string, password: string} | undefined, fetch?: typeof fetch | undefined};

export const webHookPostFieldDataObject = z.object({alias: z.string().nullable(), name: z.string(), type: z.string().nullable(), id: z.number().int(), pageId: z.number().int(), tableId: z.number().int().nullable()});

export const webHookPostFieldDataObjectCollection = z.array(webHookPostFieldDataObject);

export const webHookPostFieldPageDataObject = z.object({id: z.number().int(), name: z.string()});

export const webHookPostFieldPageDataObjectCollection = z.array(webHookPostFieldPageDataObject);

export const webHookPostFieldTableDataObject = z.object({id: z.number().int(), name: z.string()});

export const webHookPostFieldTableDataObjectCollection = z.array(webHookPostFieldTableDataObject);

export const webHookPostFieldResponseObject = z.object({fields: webHookPostFieldDataObjectCollection, pages: webHookPostFieldPageDataObjectCollection, tables: webHookPostFieldTableDataObjectCollection});

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
};

/**
 * Get Webhook Post Fields
 * 
 * GET /api/v1/webhooks/post-fields
 * 
 * Also accepts auth: oauth
 */
export const getApiApiV1WebhooksPostFields = async (options?: GetApiApiV1WebhooksPostFieldsOptions) => {
const {baseUrl = "https://companySubDomain.bamboohr.com", fetch: fetchFn = fetch, basic} = options ?? {}

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

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

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