import {z} from 'zod'

export type CreateApiStatsEmailSummaryArgs = {body: {username?: string | undefined}};

export type CreateApiStatsEmailSummaryOptions = {baseUrl?: string | undefined, sec0?: string | undefined, fetch?: typeof fetch | undefined};

export const createApiStatsEmailSummaryResponse = z.object({request_id: z.string(), data: z.object({cycle_end: z.string(), spam_rejects: z.number().int(), bounce_percent: z.string(), unsubscribes: z.number().int(), bounce_rejects: z.number().int(), spam_percent: z.string(), softbounces: z.number().int(), cycle_max: z.number().int(), spam_emails: z.number().int(), cycle_remaining: z.number().int(), cycle_start: z.string(), unsubscribe_percent: z.string(), cycle_used: z.number().int(), hardbounces: z.number().int(), email_count: z.number().int(), opens: z.number().int(), clicks: z.number().int(), rejects: z.number().int()})});

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
};

/**
 * Email summary
 * 
 * POST /stats/email_summary
 * 
 * Also accepts auth: sec1
 */
export const createApiStatsEmailSummary = async (args: CreateApiStatsEmailSummaryArgs, options?: CreateApiStatsEmailSummaryOptions) => {
const {baseUrl = "https://api.smtp2go.com/v3", fetch: fetchFn = fetch, sec0} = options ?? {}

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

if (sec0 !== undefined) headers.set("X-Smtp2go-Api-Key", sec0)

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