import {z} from 'zod'

export type CreateApiApiV4MessagingConversationsBulkArgs = {'Idempotency-Key'?: string | undefined, body: {reference?: string | undefined, channel_profile_id: number, message: {content_type: 'whatsapp_template', content_data: {whatsapp_template_id: string, placeholders?: Record<string, never> | undefined}}, recipients: Array<{contact_channel_identifier: string, placeholders?: Record<string, never> | undefined, source?: {system: string, account_id: string} | undefined}>}};

export type CreateApiApiV4MessagingConversationsBulkOptions = {baseUrl: string, StaticKey?: string | undefined, fetch?: typeof fetch | undefined};

export const bulkConversationResultRecipient = z.object({contact_channel_identifier: z.string().optional(), conversation_id: z.string().nullable().optional(), cost: z.string().optional(), errors: z.record(z.string(), z.array(z.string())).nullable().optional()});

export const bulkConversationResult = z.object({cost: z.string().optional(), recipients: z.object({sent: z.array(bulkConversationResultRecipient).optional(), failed: z.array(bulkConversationResultRecipient).optional(), invalid: z.array(bulkConversationResultRecipient).optional()}).optional()});

export const job = z.object({id: z.string().optional(), type: z.literal("bulk_conversation").optional(), status: z.enum(["pending", "processing", "completed"]).optional(), reference: z.string().nullable().optional(), created_at: z.string().optional(), updated_at: z.string().optional(), completed_at: z.string().nullable().optional(), result: bulkConversationResult.nullable().optional()});

export const createApiApiV4MessagingConversationsBulkResponse = z.object({job: job.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 conversations in bulk
 * 
 * POST /api/v4/messaging/conversations/bulk
 */
export const createApiApiV4MessagingConversationsBulk = async (args: CreateApiApiV4MessagingConversationsBulkArgs, options: CreateApiApiV4MessagingConversationsBulkOptions) => {
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 (args['Idempotency-Key'] != null) headers.set("Idempotency-Key", String(args['Idempotency-Key']))
if (StaticKey !== undefined) headers.set('authorization', `Bearer ${StaticKey}`)

const url = `${baseUrl.replace(/\/+$/, '')}/api/v4/messaging/conversations/bulk${query.size > 0 ? `?${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(createApiApiV4MessagingConversationsBulkResponse, await res.json())
};