import {z} from 'zod'

export type ApiSplitTestMetrics = 'Opens' | 'Clicks' | 'ROI' | 'NotAvailableInThisVersion';

export type ApiSplitTestSendOptions = {testMetric: ApiSplitTestMetrics, testPercentage: number, testPeriodHours: number};

export type ApiCampaignSendStatuses = 'NotSent' | 'Scheduled' | 'Sending' | 'Sent' | 'Cancelled' | 'NotAvailableInThisVersion';

export type ApiCampaignSend = {id?: unknown | undefined, campaignId: number, addressBookIds?: (Array<number> | null) | undefined, contactIds?: (Array<number> | null) | undefined, sendDate?: string | undefined, splitTestOptions?: (ApiSplitTestSendOptions | null) | undefined, status?: ApiCampaignSendStatuses | undefined};

export type CreateApiV2CampaignsSendArgs = {body: ApiCampaignSend};

export type CreateApiV2CampaignsSendOptions = {baseUrl?: string | undefined, fetch?: typeof fetch | undefined};

export const apiSplitTestMetrics = z.enum(["Opens", "Clicks", "ROI", "NotAvailableInThisVersion"]);

export const apiSplitTestSendOptions = z.object({testMetric: apiSplitTestMetrics, testPercentage: z.number().int().gte(1).lte(100), testPeriodHours: z.number().int().gte(1).lte(2147483647)});

export const apiCampaignSendStatuses = z.enum(["NotSent", "Scheduled", "Sending", "Sent", "Cancelled", "NotAvailableInThisVersion"]);

export const apiCampaignSend = z.object({id: z.string().optional(), campaignId: z.number().int(), addressBookIds: z.array(z.number().int()).nullable().optional(), contactIds: z.array(z.number().int()).nullable().optional(), sendDate: z.string().optional(), splitTestOptions: apiSplitTestSendOptions.nullable().optional(), status: apiCampaignSendStatuses.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
};

/**
 * Sends a specified campaign to one or more lists, segments or contacts at a specified time. Leave the list array empty to send to All Contacts.
 * 
 * POST /v2/campaigns/send
 */
export const createApiV2CampaignsSend = async (args: CreateApiV2CampaignsSendArgs, options?: CreateApiV2CampaignsSendOptions) => {
const {baseUrl = "https://api.dotdigital.com", fetch: fetchFn = fetch} = options ?? {}

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

const url = `${baseUrl.replace(/\/+$/, '')}/v2/campaigns/send${query.size > 0 ? `?${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(apiCampaignSend, await res.json())
};