import {z} from 'zod'

export type ButtonParameter = {type?: ('URL' | 'QUICK_REPLY' | 'CATALOG' | 'COPY_CODE') | undefined, payload?: Record<string, never> | undefined, param?: number | undefined};

export type LTOParams = {expirationTime?: number | undefined};

export type CarouselCard = {mediaUrl?: string | undefined, params?: Array<string> | undefined, buttonParameters?: Array<ButtonParameter> | undefined};

export type HSMRequest = {mediaUrl?: string | undefined, filename?: string | undefined, type?: ('text' | 'hsm' | 'image' | 'document' | 'video' | 'catalog' | 'carousel') | undefined, language?: ('en' | 'es' | 'pt') | undefined, elementName: string, parameters?: Array<string> | undefined, destinations: Array<string>, buttonPayloads?: Array<Record<string, never>> | undefined, actions?: Record<string, never> | undefined, headerParameters?: Array<string> | undefined, buttonParameters?: Array<ButtonParameter> | undefined, ltoParams?: LTOParams | undefined, cards?: Array<CarouselCard> | undefined, expirationTime?: string | undefined, campaignId?: string | undefined};

export type CreateApiV2WhatsappBotIdHsmArgs = {botId: string, body: HSMRequest};

export type CreateApiV2WhatsappBotIdHsmOptions = {baseUrl?: string | undefined, basicAuth?: {username: string, password: string} | undefined, fetch?: typeof fetch | undefined};

export const hSMResponse = z.array(z.object({id: z.string().optional(), destination: 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 Individual HSM
 * 
 * POST /v2/whatsapp/{botId}/hsm
 */
export const createApiV2WhatsappBotIdHsm = async (args: CreateApiV2WhatsappBotIdHsmArgs, options?: CreateApiV2WhatsappBotIdHsmOptions) => {
const {baseUrl = "https://api.jelou.ai", 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 = `${baseUrl.replace(/\/+$/, '')}/v2/whatsapp/${encodeURIComponent(String(args.botId))}/hsm${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(hSMResponse, await res.json())
};