import {z} from 'zod'

export type AmountDTO = {gross: number, net: number, tax: number};

export type TinyText = string;

export type OrderDuration = number;

export type CountryCode = string;

export type Address = {house_number?: TinyText | undefined, street: TinyText, postal_code: TinyText, city: TinyText, country: CountryCode};

export type PostalCode = string;

export type AddressStrictPostalCode = {house_number?: TinyText | undefined, street: TinyText, postal_code: PostalCode, city: TinyText, country: CountryCode};

export type LegalForm = string;

export type CreateOrderDebtorCompanyRequest = {merchant_customer_id: TinyText, name: TinyText, company_address: AddressStrictPostalCode, billing_address?: Address | undefined, tax_id?: TinyText | undefined, tax_number?: TinyText | undefined, registration_court?: TinyText | undefined, registration_number?: TinyText | undefined, industry_sector?: TinyText | undefined, subindustry_sector?: TinyText | undefined, employees_number?: TinyText | undefined, legal_form: LegalForm, established_customer?: boolean | undefined};

export type PhoneNumber = string;

export type CreateOrderDebtorPersonRequest = {salutation?: ('m' | 'f') | undefined, first_name?: TinyText | undefined, last_name?: TinyText | undefined, phone_number?: PhoneNumber | undefined, email: string, locale?: string | undefined};

export type CreateOrderLineItemRequest = {external_id: TinyText, title: TinyText, description?: string | undefined, quantity: number, category?: TinyText | undefined, brand?: TinyText | undefined, gtin?: TinyText | undefined, mpn?: TinyText | undefined, product_url?: TinyText | undefined, image_url?: TinyText | undefined, type?: TinyText | undefined, quantity_unit?: TinyText | undefined, tax_rate?: number | undefined, total_discount_amount?: number | undefined, unit_price?: number | undefined, amount: AmountDTO};

export type CreateOrderRequest = {amount: AmountDTO, comment?: TinyText | undefined, duration: OrderDuration, external_code?: TinyText | undefined, delivery_address?: Address | undefined, debtor: CreateOrderDebtorCompanyRequest, debtor_person: CreateOrderDebtorPersonRequest, line_items: Array<CreateOrderLineItemRequest>, additional_billing_emails?: Array<string> | undefined};

export type CreateApiOrdersArgs = {body: CreateOrderRequest};

export type CreateApiOrdersOptions = {baseUrl?: string | undefined, oauth2?: string | undefined, fetch?: typeof fetch | undefined};

export const uUID = z.string().min(36).max(36);

export const orderStateV2 = z.enum(["pre_waiting", "authorized", "waiting", "created", "declined", "shipped", "partially_shipped", "complete", "canceled"]);

export const orderDeclineReason = z.enum(["risk_policy", "risk_scoring_failed", "debtor_not_identified", "debtor_address", "risk_scoring_failed", "debtor_limit_exceeded"]);

export const taxedMoney = z.object({gross: z.number().gte(1), net: z.number().gte(1), tax: z.number().gte(0)});

export const orderDuration = z.number().int().gte(1).lte(120);

export const dateTime = z.string();

export const tinyText = z.string().max(255);

export const countryCode = z.string().min(2).max(2);

export const address = z.object({house_number: tinyText.optional(), street: tinyText, postal_code: tinyText, city: tinyText, country: countryCode});

export const bankAccount = z.object({iban: tinyText.optional(), bic: tinyText.optional()});

export const debtorExternalData = z.object({merchant_customer_id: tinyText.optional(), name: tinyText.optional(), industry_sector: z.string().nullable().optional(), address: address.optional()});

export const debtor = z.object({name: z.string().optional(), company_address: address.optional(), billing_address: address.optional(), bank_account: bankAccount.optional(), external_data: debtorExternalData.optional()});

export const orderInvoiceResponse = z.object({uuid: uUID.optional(), invoice_number: z.string().nullable().optional(), state: z.string().nullable().optional(), payout_amount: z.number().nullable().optional(), amount: z.number().optional(), amount_net: z.number().optional(), amount_tax: z.number().optional(), outstanding_amount: z.number().nullable().optional(), pending_merchant_payment_amount: z.number().nullable().optional(), pending_cancellation_amount: z.number().nullable().optional(), fee_amount: z.number().nullable().optional(), fee_rate: z.number().nullable().optional(), due_date: z.string().optional(), created_at: z.string().optional()});

export const paymentMethodType = z.enum(["bank_transfer", "direct_debit"]);

export const paymentMethod = z.object({type: paymentMethodType.optional(), data: z.object({iban: tinyText.optional(), bic: tinyText.optional(), bank_name: z.string().nullable().optional(), bank_giro: z.string().nullable().optional(), sort_code: z.string().nullable().optional(), account_number: z.string().nullable().optional(), bank_account_owner: z.string().optional(), mandate_reference: z.string().nullable().optional(), mandate_execution_date: dateTime.optional(), creditor_identification: z.string().nullable().optional()}).optional()});

export const paymentMethodCollection = z.array(paymentMethod);

export const order = z.object({external_code: z.string().nullable().optional(), uuid: uUID.optional(), state: orderStateV2.optional(), decline_reason: orderDeclineReason.optional(), amount: taxedMoney.optional(), unshipped_amount: taxedMoney.optional(), duration: orderDuration.optional(), created_at: dateTime.optional(), delivery_address: address.optional(), debtor: debtor.optional(), invoices: z.array(orderInvoiceResponse).optional(), selected_payment_method: z.enum(["bank_transfer", "direct_debit"]).nullable().optional(), payment_methods: paymentMethodCollection.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 Order
 * 
 * POST /orders
 */
export const createApiOrders = async (args: CreateApiOrdersArgs, options?: CreateApiOrdersOptions) => {
const {baseUrl = "https://paella-sandbox.billie.io/api/v2", fetch: fetchFn = fetch, oauth2} = options ?? {}

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

if (oauth2 !== undefined) headers.set('authorization', `Bearer ${oauth2}`)

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