import {z} from 'zod'

export type GetApiImagesJsonArgs = {all?: boolean | undefined, filters?: string | undefined, 'shared-size'?: boolean | undefined, digests?: boolean | undefined, manifests?: boolean | undefined};

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

export const oCIPlatform = z.object({architecture: z.string().optional(), os: z.string().optional(), "os.version": z.string().optional(), "os.features": z.array(z.string()).optional(), variant: z.string().optional()}).nullable();

export const oCIDescriptor = z.object({mediaType: z.string().optional(), digest: z.string().optional(), size: z.number().int().optional(), urls: z.array(z.string()).nullable().optional(), annotations: z.record(z.string(), z.string()).nullable().optional(), data: z.string().nullable().optional(), platform: oCIPlatform.optional(), artifactType: z.string().nullable().optional()});

export const imageManifestSummary = z.object({ID: z.string(), Descriptor: oCIDescriptor, Available: z.boolean(), Size: z.object({Total: z.number().int(), Content: z.number().int()}), Kind: z.enum(["image", "attestation", "unknown"]), ImageData: z.object({Platform: oCIPlatform, Containers: z.array(z.string()), Size: z.object({Unpacked: z.number().int()})}).nullable().optional(), AttestationData: z.object({For: z.string()}).nullable().optional()});

export const imageSummary = z.object({Id: z.string(), ParentId: z.string(), RepoTags: z.array(z.string()), RepoDigests: z.array(z.string()), Created: z.number().int(), Size: z.number().int(), SharedSize: z.number().int(), VirtualSize: z.number().int().optional(), Labels: z.record(z.string(), z.string()), Containers: z.number().int(), Manifests: z.array(imageManifestSummary).optional(), Descriptor: oCIDescriptor.optional()});

export const getApiImagesJsonResponse = z.array(imageSummary);

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
};

/**
 * List Images
 * 
 * GET /images/json
 */
export const getApiImagesJson = async (args: GetApiImagesJsonArgs, options: GetApiImagesJsonOptions) => {
const {baseUrl, fetch: fetchFn = fetch} = options ?? {}

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

if (args.all != null) query.append("all", String(args.all))
if (args.filters != null) query.append("filters", String(args.filters))
if (args['shared-size'] != null) query.append("shared-size", String(args['shared-size']))
if (args.digests != null) query.append("digests", String(args.digests))
if (args.manifests != null) query.append("manifests", String(args.manifests))

const url = `${baseUrl.replace(/\/+$/, '')}/images/json${query.size > 0 ? `?${query}` : ''}`

const res = await fetchFn(url, {method: "GET", headers})

if (!res.ok) throw new Error(`Request failed with status ${res.status}`, {cause: {status: res.status, body: await res.text()}})

return validateResponse(getApiImagesJsonResponse, await res.json())
};