import {z} from 'zod'

export type GetApiV1BillingSummaryOptions = {baseUrl?: string | undefined, personalApiKey?: string | undefined, fetch?: typeof fetch | undefined};

export const getPublicApiBillingSummaryResponseDto = z.object({plan: z.object({name: z.string(), status: z.enum(["active", "trialing", "past_due", "canceled", "incomplete", "unpaid", "none"]), isTrial: z.boolean(), interval: z.enum(["monthly", "annual"]).nullable(), priceCents: z.number().int().gte(0).lte(9007199254740991).nullable(), unlimited: z.boolean(), renewsAt: z.string().nullable(), cancelAtPeriodEnd: z.boolean()}), usage: z.object({included: z.object({period: z.enum(["daily", "weekly", "monthly"]), remainingPercent: z.number().gte(0).lte(100), resetsAt: z.string().nullable()}).nullable(), topUpFundsDollars: z.number().gte(0)})});

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
};

/**
 * Get billing and usage summary
 * 
 * GET /v1/billing/summary
 * 
 * Also accepts auth: adamId
 */
export const getApiV1BillingSummary = async (options?: GetApiV1BillingSummaryOptions) => {
const {baseUrl = "https://api.adam.new", fetch: fetchFn = fetch, personalApiKey} = options ?? {}

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

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

const url = `${baseUrl.replace(/\/+$/, '')}/v1/billing/summary${query.size > 0 ? `?${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(getPublicApiBillingSummaryResponseDto, await res.json())
};