import {z} from 'zod'

export type PlatformsFileUpload = {purpose: 'additional_document' | 'articles_of_association' | 'bank_verification' | 'certified_authorised_signatory' | 'company_ownership' | 'company_verification' | 'financial_verification' | 'identity_verification' | 'proof_of_legality' | 'proof_of_principal_address' | 'shareholder_structure' | 'tax_verification' | 'proof_of_residential_address' | 'proof_of_registration'};

export type CreateApiEntitiesEntityIdFilesArgs = {body: PlatformsFileUpload};

export type CreateApiEntitiesEntityIdFilesOptions = {baseUrl?: string | undefined, OAuth?: string | undefined, fetch?: typeof fetch | undefined};

export const platformsFileUploadResponse = z.object({id: z.string().optional(), maximum_size_in_bytes: z.number().optional(), document_types_for_purpose: z.array(z.string()).optional(), _links: z.object({upload: z.object({href: z.string().optional()}).optional(), self: z.object({href: z.string().optional()}).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
};

/**
 * Upload a file
 * 
 * POST /entities/{entityId}/files
 * 
 * Also accepts auth: ApiSecretKey
 */
export const createApiEntitiesEntityIdFiles = async (args: CreateApiEntitiesEntityIdFilesArgs, options?: CreateApiEntitiesEntityIdFilesOptions) => {
const {baseUrl = "https://files.checkout.com", fetch: fetchFn = fetch, OAuth} = options ?? {}

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

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

const url = `${baseUrl.replace(/\/+$/, '')}/entities/${encodeURIComponent(String(args.entityId))}/files${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(platformsFileUploadResponse, await res.json())
};