import {z} from 'zod'

export type WebhookEventType = 'employee_with_fields.updated' | 'employee_with_fields.created' | 'employee_with_fields.deleted' | 'company-integrations.updated' | 'employee.created' | 'employee.updated' | 'employee.deleted' | 'company.updated' | 'company.deleted';

export type NewWebHook = {name: string, monitorFields?: Array<string> | undefined, postFields?: Record<string, never> | undefined, url: string, format: 'json' | 'form-encoded', includeCompanyDomain?: boolean | undefined, events?: Array<WebhookEventType> | undefined};

export type CreateApiApiV1WebhooksArgs = {body: NewWebHook};

export type CreateApiApiV1WebhooksOptions = {baseUrl?: string | undefined, basic?: {username: string, password: string} | undefined, fetch?: typeof fetch | undefined};

export const webhookEventType = z.enum(["employee_with_fields.updated", "employee_with_fields.created", "employee_with_fields.deleted", "company-integrations.updated", "employee.created", "employee.updated", "employee.deleted", "company.updated", "company.deleted"]);

export const createApiApiV1WebhooksResponse = z.object({id: z.string().optional(), name: z.string().optional(), created: z.string().optional(), lastSent: z.string().nullable().optional(), monitorFields: z.array(z.string()).nullable().optional(), postFields: z.object({}).optional(), url: z.string().optional(), format: z.enum(["json", "form-encoded"]).optional(), privateKey: z.string().optional(), includeCompanyDomain: z.boolean().optional(), events: z.array(webhookEventType).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
};

/**
 * Create Webhook
 * 
 * POST /api/v1/webhooks
 * 
 * Also accepts auth: oauth
 */
export const createApiApiV1Webhooks = async (args: CreateApiApiV1WebhooksArgs, options?: CreateApiApiV1WebhooksOptions) => {
const {baseUrl = "https://companySubDomain.bamboohr.com", fetch: fetchFn = fetch, basic} = options ?? {}

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

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

const url = `${baseUrl.replace(/\/+$/, '')}/api/v1/webhooks${query.size > 0 ? `?${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(createApiApiV1WebhooksResponse, await res.json())
};