import {z} from 'zod'

export type GetApiV6InvoicingSetupOptions = {baseUrl?: string | undefined, EmbedToken?: string | undefined, fetch?: typeof fetch | undefined};

export const invoiceTerm = z.object({type: z.enum(["NET_10", "NET_15", "NET_30", "NET_60", "OTHER"]).nullable(), dueDate: z.string().nullable()}).nullable();

export const reminderRecurrence = z.object({frequency: z.enum(["ONE_TIME", "DAILY", "WEEKLY", "MONTHLY", "YEARLY"]).optional(), interval: z.number().int().optional()});

export const invoicingSetupGetDto = z.object({brandColor: z.string().nullable(), defaultNote: z.string().nullable(), defaultTerm: invoiceTerm, defaultReminderRecurrence: reminderRecurrence, reimbursableMarkUpPercent: z.string().nullable(), setupComplete: z.boolean()});

export const successResponseInvoicingSetupGetDto = z.object({result: z.enum(["SUCCESS", "FAILURE"]).optional(), data: invoicingSetupGetDto.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 invoicing setup
 * 
 * GET /v6/invoicing/setup
 */
export const getApiV6InvoicingSetup = async (options?: GetApiV6InvoicingSetupOptions) => {
const {baseUrl = "https://sandbox.tight.com", fetch: fetchFn = fetch, EmbedToken} = options ?? {}

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

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

const url = `${baseUrl.replace(/\/+$/, '')}/v6/invoicing/setup${query.size > 0 ? `?${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(successResponseInvoicingSetupGetDto, await res.json())
};