import {z} from 'zod'

export type GetApiV1AnalyticsCampaignsArgs = {limit?: number | undefined, cursor?: string | undefined};

export type GetApiV1AnalyticsCampaignsOptions = {baseUrl?: string | undefined, bearerAuth?: string | undefined, fetch?: typeof fetch | undefined};

export const campaignAnalyticsResponse = z.object({data: z.array(z.object({sendId: z.string().min(1), emailId: z.string().min(1), title: z.string(), status: z.enum(["scheduled", "queued", "sending", "paused", "sent", "failed", "canceled"]), audienceName: z.string().optional(), sentAt: z.string().optional(), stats: z.object({accepted: z.number().int().gte(0).optional(), sent: z.number().int().gte(0), delivered: z.number().int().gte(0), opened: z.number().int().gte(0), clicked: z.number().int().gte(0), bounced: z.number().int().gte(0), complained: z.number().int().gte(0), unsubscribed: z.number().int().gte(0)})})), pagination: z.object({limit: z.number().int().gte(1).lte(100), cursor: z.string().nullable(), hasMore: z.boolean()})});

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
};

/**
 * Campaign performance
 * 
 * GET /v1/analytics/campaigns
 * 
 * Also accepts auth: apiKeyAuth
 */
export const getApiV1AnalyticsCampaigns = async (args: GetApiV1AnalyticsCampaignsArgs, options?: GetApiV1AnalyticsCampaignsOptions) => {
const {baseUrl = "https://brew.new/api", fetch: fetchFn = fetch, bearerAuth} = options ?? {}

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

if (args.limit != null) query.append("limit", String(args.limit))
if (args.cursor != null) query.append("cursor", String(args.cursor))
if (bearerAuth !== undefined) headers.set('authorization', `Bearer ${bearerAuth}`)

const url = `${baseUrl.replace(/\/+$/, '')}/v1/analytics/campaigns${query.size > 0 ? `?${query}` : ''}`

const res = await fetchFn(url, {method: "GET", headers})

if (!res.ok) throw new Error(`Request failed with status ${res.status}`, {cause: {status: res.status, body: await res.text()}})

return validateResponse(campaignAnalyticsResponse, await res.json())
};