import {z} from 'zod'

export type ScheduledCallbackDestinationPhoneNumber = {type: 'phone_number', phone_number: string};

export type ScheduledCallbackDestinationRelatedCall = {type: 'related_call', call_id: string};

export type ScheduledCallbackDestinationExternalSystem = {type: 'external_system', system: string, account_id: string};

export type CreateApiApiV4TasksScheduledCallbacksArgs = {body: {user_id: number, scheduled_at: string, caller_id_group_id?: (number | null) | undefined, timezone?: (string | null) | undefined, destination: ScheduledCallbackDestinationPhoneNumber | ScheduledCallbackDestinationRelatedCall | ScheduledCallbackDestinationExternalSystem, note?: (string | null) | undefined}};

export type CreateApiApiV4TasksScheduledCallbacksOptions = {baseUrl: string, StaticKey?: string | undefined, fetch?: typeof fetch | undefined};

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

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

export const scheduledCallback = z.object({id: z.number().int().optional(), phone_number: z.string().optional(), scheduled_at: z.string().optional(), user: userShort.optional(), caller_id_group: callerIDGroupShort.optional(), note: z.string().nullable().optional(), related_call: z.object({id: z.string().optional()}).nullable().optional(), source: z.object({system: z.string().optional(), account_id: z.string().optional()}).nullable().optional(), status: z.enum(["pending", "in_progress", "completed", "failed", "in_failover"]).optional(), created_at: z.string().optional(), updated_at: z.string().optional()});

export const createApiApiV4TasksScheduledCallbacksResponse = z.object({scheduled_callback: scheduledCallback.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 scheduled callback
 * 
 * POST /api/v4/tasks/scheduled_callbacks
 */
export const createApiApiV4TasksScheduledCallbacks = async (args: CreateApiApiV4TasksScheduledCallbacksArgs, options: CreateApiApiV4TasksScheduledCallbacksOptions) => {
const {baseUrl, fetch: fetchFn = fetch, StaticKey} = options ?? {}

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

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

const url = `${baseUrl.replace(/\/+$/, '')}/api/v4/tasks/scheduled_callbacks${query.size > 0 ? `?${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(createApiApiV4TasksScheduledCallbacksResponse, await res.json())
};