import {z} from 'zod'

export type GetApiDiscountsIdArgs = {id: string};

export type GetApiDiscountsIdOptions = {baseUrl?: string | undefined, OAuth2?: string | undefined, fetch?: typeof fetch | undefined};

export const currencyAmount = z.object({formatted: z.string().optional(), amount: z.number().optional(), currency_code: z.string().optional(), currency_symbol: z.string().optional()});

export const currencyAmountNullable = z.object({formatted: z.string().optional(), amount: z.number().optional(), currency_code: z.string().optional(), currency_symbol: z.string().optional()}).nullable();

export const discount = z.object({id: z.number().int().optional(), organization_id: z.string().optional(), type: z.enum(["allowance", "startup", "enterprise"]).optional(), type_label: z.string().optional(), status: z.enum(["inactive", "active", "expired", "deactivated"]).optional(), commitment: z.object({months: z.number().int().optional(), amount: z.object({monthly: currencyAmount.optional(), commitment_period: currencyAmount.optional(), contract_total: currencyAmount.optional()}).optional(), net: z.object({monthly: currencyAmount.optional(), commitment_period: currencyAmount.optional(), contract_total: currencyAmount.optional()}).optional()}).nullable().optional(), total_months: z.number().int().nullable().optional(), discount: z.object({monthly: currencyAmount.optional(), commitment_period: currencyAmountNullable.optional(), contract_total: currencyAmountNullable.optional()}).optional(), config: z.object({}).optional(), start_at: z.string().optional(), end_at: z.string().nullable().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
};

/**
 * Get an organization discount
 * 
 * GET /discounts/{id}
 */
export const getApiDiscountsId = async (args: GetApiDiscountsIdArgs, options?: GetApiDiscountsIdOptions) => {
const {baseUrl = "https://api.upsun.com", fetch: fetchFn = fetch, OAuth2} = options ?? {}

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

if (OAuth2 !== undefined) headers.set('authorization', `Bearer ${OAuth2}`)

const url = `${baseUrl.replace(/\/+$/, '')}/discounts/${encodeURIComponent(String(args.id))}${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(discount, await res.json())
};