import {z} from 'zod'

export type CreditNoteReason = 'DUPLICATED_CHARGE' | 'PRODUCT_UNSATISFACTORY' | 'ORDER_CHANGE' | 'ORDER_CANCELLATION' | 'FRAUDULENT_CHARGE' | 'OTHER';

export type AmountNoCurrency = {value: number};

export type CreditNoteCreateRequest = {invoice_id: string, reason?: CreditNoteReason | undefined, description?: string | undefined, credit_amount?: (AmountNoCurrency | null) | undefined, refund_amount?: (AmountNoCurrency | null) | undefined, items: Array<{fee_id: string, amount: AmountNoCurrency}>};

export type CreateApiCreditNotesArgs = {body: CreditNoteCreateRequest};

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

export const billingEntityCode = z.string();

export const date = z.string();

export const creditNoteStatus = z.enum(["AVAILABLE", "CONSUMED", "VOIDED"]);

export const refundStatus = z.enum(["PENDING", "SUCCEEDED", "FAILED"]);

export const creditNoteReason = z.enum(["DUPLICATED_CHARGE", "PRODUCT_UNSATISFACTORY", "ORDER_CHANGE", "ORDER_CANCELLATION", "FRAUDULENT_CHARGE", "OTHER"]);

export const currency = z.string().min(3).max(3);

export const amount = z.object({value: z.number().gte(0), currency_code: currency});

export const dateTimeWithZone = z.string();

export const feeObject = z.object({id: z.string().nullable().optional(), total_amount: amount.optional(), name: z.string().nullable().optional()});

export const creditNoteItemObject = z.object({id: z.string(), amount: amount, fee: feeObject});

export const creditNoteAppliedTaxObject = z.object({id: z.string().optional(), tax_id: z.string().optional(), tax_name: z.string().optional(), tax_code: z.string().optional(), tax_rate: z.number().optional(), tax_description: z.string().optional(), amount: amount.optional(), created_at: dateTimeWithZone.optional()});

export const creditNoteWithId = z.object({billing_entity_code: billingEntityCode, sequential_id: z.number().int(), number: z.string(), invoice_id: z.string(), invoice_number: z.string(), issuing_date: date, credit_status: creditNoteStatus.optional(), refund_status: refundStatus.optional(), reason: creditNoteReason, description: z.string().nullable().optional(), total_amount: amount, taxes_amount: amount, taxes_rate: z.number(), sub_total_excluding_taxes_amount: amount, balance_amount: amount, credit_amount: amount, refund_amount: amount, created_at: dateTimeWithZone, updated_at: dateTimeWithZone, items: z.array(creditNoteItemObject).optional(), applied_taxes: z.array(creditNoteAppliedTaxObject).optional(), id: z.string().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
};

/**
 * Create a new credit note
 * 
 * POST /credit-notes
 */
export const createApiCreditNotes = async (args: CreateApiCreditNotesArgs, options?: CreateApiCreditNotesOptions) => {
const {baseUrl = "https://api-m.sandbox.paypal.com", fetch: fetchFn = fetch, BearerAuth} = options ?? {}

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

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

const url = `${baseUrl.replace(/\/+$/, '')}/credit-notes${query.size > 0 ? `?${query}` : ''}`

const res = await fetchFn(url, {method: "POST", headers, body: JSON.stringify(args.body)})

if (!res.ok) throw new Error(`Request failed with status ${res.status}`, {cause: {status: res.status, body: await res.text()}})

return validateResponse(creditNoteWithId, await res.json())
};