import {z} from 'zod'

export type AiReferralsEvent = {date: string, raw_referrer_value: string, raw_page_value: string, pageviews?: (number | null) | undefined, sessions?: (number | null) | undefined, transactions?: (number | null) | undefined, purchase_revenue?: (number | null) | undefined, currency_code?: (string | null) | undefined, users?: (number | null) | undefined, new_users?: (number | null) | undefined, engaged_sessions?: (number | null) | undefined, engagement_seconds?: (number | null) | undefined, key_events?: (number | null) | undefined, converted_sessions?: (number | null) | undefined, batch_id?: (string | null) | undefined};

export type CreateApiBrandIdAiReferralsConnectionsConnectionIdEventsArgs = {brand_id: number, connection_id: string, body: Array<AiReferralsEvent>};

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

export const aiReferralsSaveResult = z.object({accepted: z.number().int(), rejected: z.number().int(), errors: z.array(z.string()).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
};

/**
 * Push AI Referrals Events
 * 
 * POST /{brand_id}/ai-referrals/connections/{connection_id}/events
 */
export const createApiBrandIdAiReferralsConnectionsConnectionIdEvents = async (args: CreateApiBrandIdAiReferralsConnectionsConnectionIdEventsArgs, options?: CreateApiBrandIdAiReferralsConnectionsConnectionIdEventsOptions) => {
const {baseUrl = "https://api.scrunchai.com/v1", fetch: fetchFn = fetch, HTTPBearer} = options ?? {}

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

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

const url = `${baseUrl.replace(/\/+$/, '')}/${encodeURIComponent(String(args.brand_id))}/ai-referrals/connections/${encodeURIComponent(String(args.connection_id))}/events${query.size > 0 ? `?${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(aiReferralsSaveResult, await res.json())
};