import {z} from 'zod'

export type Claim = {additional_amount?: number | undefined, amount: number, case_id: string, charge_id: string, comments?: string | undefined, currency: string, due_date: string, issue_date: string, order_id: string, processor_name: string, reason_code: string, reason_description: string, reason_type: 'FRAUD' | 'SERVICE' | 'OTHER' | 'AUTHORIZATION' | 'PROCESSING_ERROR', source_type?: ('PROCESSOR_CB' | 'AMEX' | 'DISCOVER' | 'PAYPAL' | 'PROCESSOR_INQUIRY' | 'CUSTOMER_SUPPORT' | 'SHIPPING_CARRIER' | 'THIRD_PARTY' | 'FORTER' | 'OTHER') | undefined, status: 'OPEN' | 'IN_DISPUTE' | 'WON' | 'LOST' | 'CANCELED', type?: ('CHARGEBACK' | 'PRE_CHARGEBACK' | 'DEBIT_MEMO' | 'REQUEST_FOR_INFORMATION' | 'FRAUD_ALERT') | undefined};

export type CreateApiProtectionTransactionTokenClaimsArgs = {body: Claim};

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

export const claimResponse = z.object({claim: z.object({message: z.string().optional(), status: z.string().optional()}).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
};

/**
 * Forward a claim to the protection provider
 * 
 * POST /protection/{transaction_token}/claims
 */
export const createApiProtectionTransactionTokenClaims = async (args: CreateApiProtectionTransactionTokenClaimsArgs, options?: CreateApiProtectionTransactionTokenClaimsOptions) => {
const {baseUrl = "https://core.spreedly.com/v1", 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 = `${baseUrl.replace(/\/+$/, '')}/protection/${encodeURIComponent(String(args.transaction_token))}/claims${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(claimResponse, await res.json())
};