import {z} from 'zod'

export type TransformPost = {name: string, type: 'njk-xml' | 'njk-pdf' | 'njk-txt' | 'njk' | 'xsl', io: 'in' | 'out', template?: string | undefined};

export type CreateApiModulesModuleIdTransformsArgs = {moduleId: string, body: TransformPost};

export type CreateApiModulesModuleIdTransformsOptions = {baseUrl?: string | undefined, OAuth2?: string | undefined, fetch?: typeof fetch | undefined};

export const transformResponse = z.object({name: z.string(), moduleId: z.string(), type: z.enum(["njk-xml", "njk-pdf", "njk", "xsl"]), io: z.enum(["in", "out"]), template: z.string().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
};

/**
 * Create Transform
 * 
 * POST /modules/{moduleId}/transforms
 */
export const createApiModulesModuleIdTransforms = async (args: CreateApiModulesModuleIdTransformsArgs, options?: CreateApiModulesModuleIdTransformsOptions) => {
const {baseUrl = "https://env.unqork.io/api/1.0", fetch: fetchFn = fetch, OAuth2} = options ?? {}

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

if (OAuth2 !== undefined) headers.set('authorization', `Bearer ${OAuth2}`)

const url = `${baseUrl.replace(/\/+$/, '')}/modules/${encodeURIComponent(String(args.moduleId))}/transforms${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(transformResponse, await res.json())
};