import {z} from 'zod'

export type CreateApiTemplateArgs = {'carbone-version': '5' | '4' | '3' | 'staging', body: {id?: string | undefined, versioning?: boolean | undefined, template: string, name?: string | undefined, comment?: string | undefined, category?: string | undefined, tags?: Array<string> | undefined, sample?: (Array<{data?: Record<string, never> | undefined, complement?: Record<string, never> | undefined, translations?: Record<string, never> | undefined, enum?: Record<string, never> | undefined}>) | undefined, expireAt?: number | undefined, deployedAt?: number | undefined, origin?: number | undefined}};

export type CreateApiTemplateOptions = {baseUrl?: string | undefined, bearerAuth?: string | undefined, fetch?: typeof fetch | undefined};

export const createApiTemplateResponse = z.object({success: z.boolean().optional(), data: z.union([z.object({id: z.string().optional(), versionId: z.string().optional(), type: z.string().optional(), size: z.number().int().optional(), createdAt: z.number().int().optional(), deployedAt: z.number().int().optional()}), z.object({templateId: z.string().optional(), templateExtension: 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
};

/**
 * Upload a template.
 * 
 * POST /template
 */
export const createApiTemplate = async (args: CreateApiTemplateArgs, options?: CreateApiTemplateOptions) => {
const {baseUrl = "https://api.carbone.io", fetch: fetchFn = fetch, bearerAuth} = options ?? {}

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

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

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