import {z} from 'zod'

export type SendTemplateMessageContentTemplateDataHeaderDto = {type?: ('TEXT' | 'IMAGE' | 'DOCUMENT' | 'VIDEO' | 'LOCATION') | undefined, placeholder?: string | undefined, mediaUrl?: string | undefined, filename?: string | undefined, latitude?: number | undefined, longitude?: number | undefined};

export type SendTemplateMessageContentTemplateDataBodyDto = {placeholders: Array<string>};

export type SendTemplateMessageContentTemplateDataButtonDto = {type: 'URL', parameter?: string | undefined};

export type SendTemplateMessageContentTemplateCarouselCardsDto = {cardIndex?: number | undefined, components?: ({header?: ({type?: ('IMAGE' | 'VIDEO') | undefined, mediaUrl?: string | undefined}) | undefined, body?: SendTemplateMessageContentTemplateDataBodyDto | undefined, buttons?: Array<SendTemplateMessageContentTemplateDataButtonDto> | undefined}) | undefined};

export type SendTemplateMessageContentTemplateDataDto = {header?: SendTemplateMessageContentTemplateDataHeaderDto | undefined, body?: SendTemplateMessageContentTemplateDataBodyDto | undefined, buttons?: Array<SendTemplateMessageContentTemplateDataButtonDto> | undefined, cards?: Array<SendTemplateMessageContentTemplateCarouselCardsDto> | undefined};

export type SendTemplateMessageContentDto = {templateName: string, language: 'en' | 'en_US' | 'en_GB' | 'pt_BR' | 'es' | 'id', templateData?: SendTemplateMessageContentTemplateDataDto | undefined};

export type SendWhatsAppBroadcastRequestDto = {groupName: string, from?: unknown | undefined, content?: SendTemplateMessageContentDto | undefined};

export type CreateApiWhatsappMessageBroadcastArgs = {body: SendWhatsAppBroadcastRequestDto};

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

export const sendWhatsAppBroadcastResponseDto = z.object({status: z.enum(["SENT", "FAILED"]), messageId: z.string(), errorMessage: 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
};

/**
 * Send Template Whatsapp Message to Broadcast Group
 * 
 * POST /whatsapp/message/broadcast
 */
export const createApiWhatsappMessageBroadcast = async (args: CreateApiWhatsappMessageBroadcastArgs, options?: CreateApiWhatsappMessageBroadcastOptions) => {
const {baseUrl = "https://public.doubletick.io", 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)

const url = `${baseUrl.replace(/\/+$/, '')}/whatsapp/message/broadcast${query.size > 0 ? `?${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(sendWhatsAppBroadcastResponseDto, await res.json())
};