import {z} from 'zod'

export type BatchTreatmentType = 'INDIVIDUAL_PAYMENTS' | 'BATCH';

export type CurrencyCode = string;

export type AmountIntegerValueInput = {currency: CurrencyCode, value: number};

export type AmountStringValueInput = {currency: CurrencyCode, stringValue: string};

export type AmountInput = AmountIntegerValueInput | AmountStringValueInput;

export type DirectDebitSchemeType = 'SDD_CORE' | 'SDD_B2B' | 'GB_DD_BACS' | 'AUTOGIRO' | 'CH_DD_LSV' | 'CH_DD_BDD' | 'US_DD_ACH';

export type InstrumentType = 'US_ACH' | 'CITI_WORLDLINK';

export type InstrumentInput = {type: InstrumentType};

export type SchemeDetailsUrgency = 'HIGH';

export type SchemeDetailsInput = {instrument?: InstrumentInput | undefined, intraCompany?: boolean | undefined, urgency?: SchemeDetailsUrgency | undefined};

export type Date = string;

export type AccountType = 'ACCOUNT' | 'EXTERNAL_ACCOUNT' | 'INLINE';

export type ExternalAccountRef = {type: AccountType, id: string};

export type InternalAccountRef = {type: AccountType, id: string};

export type PaymentReference = string;

export type CategoryPurpose = string;

export type ChargeBearer = 'SHARED' | 'DEBTOR' | 'CREDITOR' | 'SERVICE_LEVEL';

export type ExternalID = string;

export type Metadata = {[key: string]: string} | null;

export type ResourceID = string;

export type CreateDirectDebitRequest = {amount: AmountInput, scheme: DirectDebitSchemeType, schemeDetails?: SchemeDetailsInput | undefined, date: Date, source: ExternalAccountRef, destination: InternalAccountRef, reference: PaymentReference, categoryPurpose?: CategoryPurpose | undefined, chargeBearer?: ChargeBearer | undefined, externalId?: ExternalID | undefined, metadata?: Metadata | undefined, paymentScheduleId?: ResourceID | undefined};

export type CreateDirectDebitBatchRequest = {treatment: BatchTreatmentType, payments: Array<CreateDirectDebitRequest>, externalId?: ExternalID | undefined, skipValidationErrors?: boolean | undefined, metadata?: Metadata | undefined};

export type CreateApiPaymentsV2betaDirectDebitBatchesArgs = {body: CreateDirectDebitBatchRequest};

export type CreateApiPaymentsV2betaDirectDebitBatchesOptions = {baseUrl?: string | undefined, basicAuth?: {username: string, password: string} | undefined, fetch?: typeof fetch | undefined};

export const resourceID = z.string().min(32).max(64);

export const organizationID = z.string();

export const batchTreatmentType = z.enum(["INDIVIDUAL_PAYMENTS", "BATCH"]);

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

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

export const batchAmountSums = z.array(amount);

export const batchInputContent = z.object({contentType: z.string(), recordCount: z.number().int(), size: z.number().int(), checksum: z.string(), filename: z.string().optional()});

export const batchInputMetadata = z.object({recordCount: z.number().int(), sums: batchAmountSums, content: batchInputContent});

export const paymentBatchDetails = z.object({sums: batchAmountSums});

export const batchResultSummary = z.object({total: z.number().int(), succeeded: z.number().int(), failed: z.number().int(), skipped: z.number().int()});

export const batchResultsSummary = z.object({total: z.number().int(), succeeded: z.number().int(), failed: z.number().int(), skipped: z.number().int(), processed: batchResultSummary, sums: batchAmountSums});

export const batchStatus = z.enum(["CREATED", "PROCESSING_STARTED", "COMPLETED"]);

export const errorDetails = z.object({code: z.string().optional(), error: z.string().optional(), field: z.string().optional(), metadata: z.record(z.string(), z.string().max(256)).optional()});

export const batchErrors = z.array(errorDetails);

export const externalID = z.string();

export const approvalResults = z.object({approved: z.number().int(), rejected: z.number().int()});

export const metadata = z.record(z.string(), z.string()).nullable();

export const eTag = z.string();

export const resourceVersion = z.number().int().gte(1);

export const createdTimestamp = z.string();

export const updatedTimestamp = z.string();

export const paymentBatch = z.object({id: resourceID, organizationId: organizationID, treatment: batchTreatmentType, input: batchInputMetadata, inputContent: batchInputContent, inputDetails: paymentBatchDetails, results: batchResultsSummary.optional(), resultSummary: batchResultSummary.optional(), resultDetails: paymentBatchDetails.optional(), status: batchStatus, errors: batchErrors.optional(), externalId: externalID.optional(), approvalResults: approvalResults, creatorUserId: resourceID.optional(), sourceAccountIds: z.array(resourceID).optional(), metadata: metadata.optional(), etag: eTag, version: resourceVersion, created: createdTimestamp, updated: updatedTimestamp});

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 direct debit batch
 * 
 * POST /payments/v2beta/direct-debit-batches
 */
export const createApiPaymentsV2betaDirectDebitBatches = async (args: CreateApiPaymentsV2betaDirectDebitBatchesArgs, options?: CreateApiPaymentsV2betaDirectDebitBatchesOptions) => {
const {baseUrl = "https://api.atlar.com", fetch: fetchFn = fetch, basicAuth} = options ?? {}

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

if (basicAuth !== undefined) headers.set('authorization', `Basic ${btoa(`${basicAuth.username}:${basicAuth.password}`)}`)

const url = `${baseUrl.replace(/\/+$/, '')}/payments/v2beta/direct-debit-batches${query.size > 0 ? `?${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(paymentBatch, await res.json())
};