import {z} from 'zod'

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

export const publicPricing = z.object({currency: z.literal("BRL"), methods: z.array(z.object({method: z.enum(["PIX", "CARD", "BOLETO"]), percent: z.string().nullable(), fixed: z.string().nullable(), minimumFee: z.string().nullable(), minAmount: z.string(), maxAmount: z.string(), settlementDays: z.number().int().gte(0)})), withdrawal: z.object({fee: z.string(), minAmount: z.string(), settlementDays: z.literal(0)}).nullable(), plan: z.object({monthlyFee: z.literal("0.00"), setupFee: z.literal("0.00"), volumeMinimum: z.unknown(), customPricing: z.literal(true)}), signup: z.object({open: z.boolean(), url: z.string(), accountTypes: z.array(z.enum(["INDIVIDUAL", "BUSINESS"])), sandbox: z.boolean()}), updatedAt: z.string().nullable()});

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 standard pricing
 * 
 * GET /public/pricing
 */
export const getApiPublicPricing = async (options?: GetApiPublicPricingOptions) => {
const {baseUrl = "https://api.yuvexpay.com", fetch: fetchFn = fetch} = options ?? {}

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

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