import {z} from 'zod'

export type FeedbackEmailCampaignRecipient = {email_address: string, unsubscribe_url?: (string | null) | undefined, variables: {[key: string]: string}};

export type SendCampaignRequest = {feedback_form_id: string, feedback_email_template_id: number, sender_email: string, sender_name: string, recipients: Array<FeedbackEmailCampaignRecipient>, is_dry_run?: boolean | undefined};

export type CreateApiFeedbackCampaignSendArgs = {body: SendCampaignRequest};

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

export const senderValidation = z.object({sender_email: z.string(), domain: z.string(), status: z.enum(["validated", "not_validated"])});

export const sendCampaignResponse = z.object({status: z.enum(["accepted", "failed"]), feedback_email_campaign_id: z.number().int().nullable().optional(), feedback_form_id: z.string(), feedback_email_template_id: z.number().int(), recipient_count: z.number().int(), recipient_count_exceeded: z.boolean().optional(), duplicate_emails: z.array(z.string()).nullable().optional(), invalid_emails: z.array(z.string()).nullable().optional(), missing_variables: z.array(z.array(z.unknown())).nullable().optional(), empty_variables: z.array(z.array(z.unknown())).nullable().optional(), invalid_store_codes: z.array(z.string()).nullable().optional(), sender_validation: senderValidation.nullable().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 a feedback email campaign
 * 
 * POST /feedback/campaign/send
 */
export const createApiFeedbackCampaignSend = async (args: CreateApiFeedbackCampaignSendArgs, options?: CreateApiFeedbackCampaignSendOptions) => {
const {baseUrl = "https://api.partoo.co/v2", fetch: fetchFn = fetch, ApiKeyAuth} = options ?? {}

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

if (ApiKeyAuth !== undefined) headers.set("x-APIKey", ApiKeyAuth)

const url = `${baseUrl.replace(/\/+$/, '')}/feedback/campaign/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(sendCampaignResponse, await res.json())
};