import {z} from 'zod'

export type Amount = number;

export type Currency = string;

export type TransferCreateAttributes = {preview?: boolean | undefined, amount: Amount, currency: Currency, schedule: 'WITHIN_THIRTY_MINUTES' | 'NEXT_BUSINESS_DAY'};

export type AccountIdentifier = {type: 'accounts', id: string};

export type AccountRelationship = {data: AccountIdentifier};

export type PersonIdentifier = {type: 'people', id: string};

export type PersonRelationship = {data: PersonIdentifier};

export type TransferCreateRelationships = {origin: AccountRelationship, destination?: AccountRelationship | undefined, person?: PersonRelationship | undefined};

export type TransferCreateResource = {type: 'transfers', id?: string | undefined, attributes: TransferCreateAttributes, relationships: TransferCreateRelationships};

export type TransferCreateData = {data: TransferCreateResource};

export type CreateApiRestTransfersArgs = {'Idempotency-Key': string, body: TransferCreateData};

export type CreateApiRestTransfersOptions = {baseUrl?: string | undefined, oauthUserToken?: string | undefined, fetch?: typeof fetch | undefined};

export const amount = z.number().int().gte(0);

export const currency = z.string();

export const transferAttributes = z.object({preview: z.boolean(), amount: amount, currency: currency, schedule: z.enum(["WITHIN_THIRTY_MINUTES", "NEXT_BUSINESS_DAY"]), status: z.enum(["PENDING", "SETTLED", "FAILED"]), submitted_at: z.string(), resolved_at: z.string().nullable(), fee: z.number().int().gte(0)});

export const transferLink = z.string();

export const transferLinks = z.object({self: transferLink});

export const accountIdentifier = z.object({type: z.literal("accounts"), id: z.string()});

export const accountRelationship = z.object({data: accountIdentifier});

export const paycheckIdentifier = z.object({type: z.literal("paychecks"), id: z.string()});

export const paycheckRelationship = z.object({data: paycheckIdentifier});

export const personIdentifier = z.object({type: z.literal("people"), id: z.string()});

export const personRelationship = z.object({data: personIdentifier});

export const fundingSourceIdentifier = z.object({type: z.literal("funding_sources"), id: z.string()});

export const fundingSourcesRelationship = z.object({data: z.array(fundingSourceIdentifier)});

export const transferRelationships = z.object({origin: z.union([accountRelationship, paycheckRelationship]), destination: accountRelationship, person: personRelationship, estimated_funding_sources: fundingSourcesRelationship, final_funding_sources: fundingSourcesRelationship});

export const transferResource = z.object({type: z.literal("transfers"), id: z.string(), attributes: transferAttributes, links: transferLinks, relationships: transferRelationships});

export const fundingSourceAttributes = z.object({amount: amount, currency: currency});

export const transferIdentifier = z.object({type: z.literal("transfers"), id: z.string()});

export const transferRelationship = z.object({data: transferIdentifier});

export const fundingSourceRelationships = z.object({source: paycheckRelationship, transfer: transferRelationship});

export const fundingSourceResource = z.object({id: z.string(), type: z.literal("funding_sources"), attributes: fundingSourceAttributes, relationships: fundingSourceRelationships});

export const transferData = z.object({data: transferResource, included: z.array(fundingSourceResource).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
};

/**
 * Request a transfer
 * 
 * POST /rest/transfers
 */
export const createApiRestTransfers = async (args: CreateApiRestTransfersArgs, options?: CreateApiRestTransfersOptions) => {
const {baseUrl = "https://api.dailypay.com", fetch: fetchFn = fetch, oauthUserToken} = options ?? {}

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

if (args['Idempotency-Key'] != null) headers.set("Idempotency-Key", String(args['Idempotency-Key']))
if (oauthUserToken !== undefined) headers.set('authorization', `Bearer ${oauthUserToken}`)

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