import {z} from 'zod'

export type OutboundMessageFilterType = 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9;

export type OutboundMessageFilter = {id?: number | undefined, messageId?: number | undefined, filterType?: OutboundMessageFilterType | undefined, filterColumn?: (string | null) | undefined, filterValue?: (string | null) | undefined, filterOperation?: (string | null) | undefined, filterPrefix?: (string | null) | undefined};

export type OutboundMessageType = 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10;

export type OutboundPreviewRequestBody = {filters?: (Array<OutboundMessageFilter> | null) | undefined, type?: OutboundMessageType | undefined, settings: unknown, departmentId?: number | undefined};

export type CreateApiV1OutboundMessagesPreviewArgs = {body: OutboundPreviewRequestBody};

export type CreateApiV1OutboundMessagesPreviewOptions = {baseUrl: string, Bearer?: string | undefined, fetch?: typeof fetch | undefined};

export const previewCountExcludedReasons = z.object({noEmail: z.number().int().optional(), noPhone: z.number().int().optional(), noRecentChat: z.number().int().optional(), marketingOptOut: z.number().int().optional()});

export const previewCountResult = z.object({count: z.number().int().optional(), totalMatchingFilters: z.number().int().optional(), excludedReasons: previewCountExcludedReasons.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
};

/**
 * Get preview count for outbound message filters
 * 
 * POST /v1/outbound/messages/preview
 * 
 * Also accepts auth: API Key
 */
export const createApiV1OutboundMessagesPreview = async (args: CreateApiV1OutboundMessagesPreviewArgs, options: CreateApiV1OutboundMessagesPreviewOptions) => {
const {baseUrl, fetch: fetchFn = fetch, Bearer} = options ?? {}

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

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

const url = `${baseUrl.replace(/\/+$/, '')}/v1/outbound/messages/preview${query.size > 0 ? `?${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(previewCountResult, await res.json())
};