import {z} from 'zod'

export type PluginProperty = {key?: string | undefined, value?: string | undefined, isUpdatable?: boolean | undefined};

export type HostedPaymentPageFields = {formFields?: Array<PluginProperty> | undefined};

export type CreateApi10KbPaymentGatewaysHostedFormAccountIdArgs = {accountId: string, paymentMethodId?: string | undefined, controlPluginName?: Array<string> | undefined, pluginProperty?: Array<string> | undefined, 'X-Killbill-CreatedBy': string, 'X-Killbill-Reason'?: string | undefined, 'X-Killbill-Comment'?: string | undefined, body: HostedPaymentPageFields};

export type CreateApi10KbPaymentGatewaysHostedFormAccountIdOptions = {baseUrl: string, basicAuth?: {username: string, password: string} | undefined, fetch?: typeof fetch | undefined};

export const entity = z.object({id: z.string().optional(), updatedDate: z.string().optional(), createdDate: z.string().optional()});

export const auditLog = z.object({changeType: z.string().optional(), changeDate: z.string().optional(), objectType: z.enum(["ACCOUNT", "ACCOUNT_EMAIL", "BLOCKING_STATES", "BUNDLE", "CUSTOM_FIELD", "INVOICE", "PAYMENT", "TRANSACTION", "INVOICE_ITEM", "INVOICE_PAYMENT", "SUBSCRIPTION", "SUBSCRIPTION_EVENT", "SERVICE_BROADCAST", "PAYMENT_ATTEMPT", "PAYMENT_METHOD", "TAG", "TAG_DEFINITION", "TENANT", "TENANT_KVS"]).optional(), objectId: z.string().optional(), changedBy: z.string().optional(), reasonCode: z.string().optional(), comments: z.string().optional(), userToken: z.string().optional(), history: entity.optional()});

export const hostedPaymentPageFormDescriptor = z.object({kbAccountId: z.string().optional(), formMethod: z.string().optional(), formUrl: z.string().optional(), formFields: z.record(z.string(), z.object({})).optional(), properties: z.record(z.string(), z.object({})).optional(), auditLogs: z.array(auditLog).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
};

/**
 * Generate form data to redirect the customer to the gateway
 * 
 * POST /1.0/kb/paymentGateways/hosted/form/{accountId}
 * 
 * Also accepts auth: Killbill_Api_Key, Killbill_Api_Secret
 */
export const createApi10KbPaymentGatewaysHostedFormAccountId = async (args: CreateApi10KbPaymentGatewaysHostedFormAccountIdArgs, options: CreateApi10KbPaymentGatewaysHostedFormAccountIdOptions) => {
const {baseUrl, 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 (args.paymentMethodId != null) query.append("paymentMethodId", String(args.paymentMethodId))
for (const item of args.controlPluginName ?? []) query.append("controlPluginName", String(item))
for (const item of args.pluginProperty ?? []) query.append("pluginProperty", String(item))
if (args['X-Killbill-CreatedBy'] != null) headers.set("X-Killbill-CreatedBy", String(args['X-Killbill-CreatedBy']))
if (args['X-Killbill-Reason'] != null) headers.set("X-Killbill-Reason", String(args['X-Killbill-Reason']))
if (args['X-Killbill-Comment'] != null) headers.set("X-Killbill-Comment", String(args['X-Killbill-Comment']))
if (basicAuth !== undefined) headers.set('authorization', `Basic ${btoa(`${basicAuth.username}:${basicAuth.password}`)}`)

const url = `${baseUrl.replace(/\/+$/, '')}/1.0/kb/paymentGateways/hosted/form/${encodeURIComponent(String(args.accountId))}${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(hostedPaymentPageFormDescriptor, await res.json())
};