import {z} from 'zod'

export type GetApiV2InvoicesInvoiceIdArgs = {'idempotency-key'?: string | undefined};

export type GetApiV2InvoicesInvoiceIdOptions = {baseUrl?: string | undefined, advancedAccessToken?: string | undefined, fetch?: typeof fetch | undefined};

export const invoiceToken = z.string();

export const invoiceStatus = z.enum(["open", "paid", "overdue"]);

export const amount = z.object({currency: z.string(), value: z.string()});

export const url = z.object({href: z.string(), type: z.string()});

export const entityInvoice = z.object({resource: z.string(), id: invoiceToken, reference: z.string(), vatNumber: z.string().nullable(), status: invoiceStatus, netAmount: z.object({currency: z.string(), value: z.string()}), vatAmount: z.object({currency: z.string(), value: z.string()}), grossAmount: z.object({currency: z.string(), value: z.string()}), lines: z.array(z.object({period: z.string(), description: z.string(), count: z.number().int(), vatPercentage: z.number().int(), amount: amount})), issuedAt: z.string(), paidAt: z.string().nullable().optional(), dueAt: z.string().nullable().optional(), _links: z.object({self: url.optional(), pdf: url.optional(), documentation: url.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 invoice
 * 
 * GET /v2/invoices/{invoiceId}
 * 
 * Also accepts auth: oAuth
 */
export const getApiV2InvoicesInvoiceId = async (args: GetApiV2InvoicesInvoiceIdArgs, options?: GetApiV2InvoicesInvoiceIdOptions) => {
const {baseUrl = "https://api.mollie.com", fetch: fetchFn = fetch, advancedAccessToken} = options ?? {}

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

if (args['idempotency-key'] != null) headers.set("idempotency-key", String(args['idempotency-key']))
if (advancedAccessToken !== undefined) headers.set('authorization', `Bearer ${advancedAccessToken}`)

const url = `${baseUrl.replace(/\/+$/, '')}/v2/invoices/${encodeURIComponent(String(args.invoiceId))}${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(entityInvoice, await res.json())
};