import {z} from 'zod'

export type CreateBroadcastRequest = {name: string, channel: 'email' | 'sms' | 'push' | 'inbox' | 'slack' | 'msteams'};

export type CreateApiBroadcastsArgs = {body: CreateBroadcastRequest};

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

export const broadcastSchedule = z.object({recipient_type: z.enum(["list", "audience"]), recipient_id: z.string(), scheduled_to: z.string().nullable().optional(), timezone: z.string().nullable().optional()});

export const broadcast = z.object({id: z.string(), name: z.string(), channel: z.enum(["email", "sms", "push", "inbox", "slack", "msteams"]), status: z.enum(["draft", "scheduled", "sending", "sent"]), schedule: broadcastSchedule.nullable().optional(), created_at: z.string(), updated_at: z.string(), created_by: z.string(), updated_by: z.string(), archived_at: z.string().nullable().optional(), archived_by: z.string().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
};

/**
 * Create Broadcast
 * 
 * POST /broadcasts
 */
export const createApiBroadcasts = async (args: CreateApiBroadcastsArgs, options?: CreateApiBroadcastsOptions) => {
const {baseUrl = "https://api.courier.com", fetch: fetchFn = fetch, BearerAuth} = options ?? {}

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

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

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