import {z} from 'zod'

export type GetApiCoupaPayInvoicesArgs = {limit?: number | undefined, offset?: number | undefined, order_by?: string | undefined, dir?: ('asc' | 'desc') | undefined, return_object?: ('limited' | 'shallow' | 'none') | undefined, filter?: string | undefined};

export type GetApiCoupaPayInvoicesOptions = {baseUrl?: string | undefined, OAuth2AccessCode?: string | undefined, fetch?: typeof fetch | undefined};

export const currency = z.object({code: z.string(), decimals: z.number().int().optional(), enabled: z.boolean().optional(), id: z.number().int().optional(), name: z.string(), symbol: z.string().optional()});

export const userSimple = z.object({"avatar-thumb-url": z.string().optional(), "created-at": z.string().optional(), email: z.string(), "employee-number": z.string().optional(), firstname: z.string(), fullname: z.string().optional(), id: z.number().int().optional(), lastname: z.string(), login: z.string(), "salesforce-id": z.string(), "updated-at": z.string().optional()});

export const businessGroup = z.object({"created-at": z.string().optional(), "created-by": userSimple.optional(), description: z.string().optional(), id: z.number().int().optional(), name: z.string(), "updated-at": z.string().optional(), "updated-by": userSimple.optional()});

export const paymentTerm = z.object({active: z.boolean().optional(), "active?": z.string().optional(), code: z.string(), "content-groups": z.array(businessGroup).optional(), "created-at": z.string().optional(), "created-by": userSimple.optional(), "days-for-discount-payment": z.number().int(), "days-for-net-payment": z.number().int(), description: z.string().optional(), "discount-cutoff-day": z.number().int().optional(), "discount-due-day": z.number().int(), "discount-due-month": z.number().int(), "discount-rate": z.number().optional(), id: z.number().int().optional(), "net-cutoff-day": z.number().int().optional(), "net-due-day": z.number().int(), "net-due-month": z.number().int(), type: z.enum(["DaysAfterNetPaymentTerm", "SpecificDayPaymentTerm", "BaseEomToDaysPaymentTerm", "DaysToBaseEomPaymentTerm"]), "updated-at": z.string().optional(), "updated-by": userSimple.optional()});

export const payablesAllocation = z.object({"bypass-strict-validations": z.boolean().optional(), "created-at": z.string().optional(), "created-by": userSimple.optional(), "exported?": z.boolean().optional(), id: z.number().int().optional(), "last-exported-at": z.string().optional(), "payable-from-amount": z.number(), "payable-from-currency": currency, "payable-from-id": z.number().int().optional(), "payable-from-type": z.string().optional(), "payable-to-amount": z.number(), "payable-to-currency": currency, "payable-to-id": z.number().int().optional(), "payable-to-type": z.string().optional(), "payment-reference-id": z.number().int().optional(), "payment-reference-type": z.string().optional(), "reason-code": z.enum(["payment", "auto_payment", "epr", "epr_rejected", "manual"]).optional(), source: z.enum(["coupa_pay", "erp", "ui", "api", "csv", "early_pay_discount"]).optional(), "source-transaction-from-id": z.string().optional(), "source-transaction-from-reference": z.string().optional(), "source-transaction-from-type": z.string().optional(), "source-transaction-to-id": z.string().optional(), "source-transaction-to-reference": z.string().optional(), "source-transaction-to-type": z.string().optional(), status: z.string().optional(), "updated-at": z.string().optional(), "updated-by": userSimple.optional()});

export const invoiceReconciliationLine = z.object({"adjustment-date": z.string().optional(), amount: z.number().optional(), "amount-paid": z.number().optional(), category: z.string().optional(), "created-at": z.string().optional(), "created-by": userSimple.optional(), id: z.number().int().optional(), note: z.string().optional(), notes: z.string().optional(), "payable-id": z.number().int().optional(), "payable-type": z.string().optional(), "payment-date": z.string().optional(), "updated-at": z.string().optional(), "updated-by": userSimple.optional()});

export const coupaPayInvoice = z.object({"accounting-amount": z.number().optional(), "accounting-currency": currency.optional(), "created-at": z.string().optional(), currency: currency.optional(), "discount-due-date": z.string().optional(), "document-id": z.string().optional(), "document-type": z.string().optional(), "exported-to-tradefin-at": z.string().optional(), id: z.number().int().optional(), "last-exported-at": z.string().optional(), "maturity-date": z.literal("YYYY-MM-DDTHH:MM:SS+HH:MM").optional(), "paid-amount": z.number().optional(), "paid-date": z.string().optional(), "payable-amount": z.number().optional(), "payment-term": paymentTerm.optional(), "received-allocations": z.array(payablesAllocation).optional(), "reconciliation-lines": z.array(invoiceReconciliationLine).optional(), "remaining-amount": z.number().optional(), "remittance-amount": z.number().optional(), "reporting-total": z.number().optional(), "sent-allocations": z.array(payablesAllocation).optional(), status: z.string().optional(), "updated-at": z.string().optional(), "wc-eligibility": z.string().optional()});

export const getApiCoupaPayInvoicesResponse = z.array(coupaPayInvoice);

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
};

/**
 * Query Invoices
 * 
 * GET /coupa_pay/invoices
 * 
 * Also accepts auth: OAuth2ClientCredential
 */
export const getApiCoupaPayInvoices = async (args: GetApiCoupaPayInvoicesArgs, options?: GetApiCoupaPayInvoicesOptions) => {
const {baseUrl = "https://r38.coupadev.com/api", fetch: fetchFn = fetch, OAuth2AccessCode} = options ?? {}

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

if (args.limit != null) query.append("limit", String(args.limit))
if (args.offset != null) query.append("offset", String(args.offset))
if (args.order_by != null) query.append("order_by", String(args.order_by))
if (args.dir != null) query.append("dir", String(args.dir))
if (args.return_object != null) query.append("return_object", String(args.return_object))
if (args.filter != null) query.append("filter", String(args.filter))
if (OAuth2AccessCode !== undefined) headers.set('authorization', `Bearer ${OAuth2AccessCode}`)

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