import {z} from 'zod'

export type GetApiApiReposNamespaceRepoNameCommitsMissingFilesArgs = {namespace: string, repo_name: string, base: string | null, head: string};

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

export const commitEntry = z.object({commit_id: z.string(), hash: z.string(), last_modified_nanoseconds: z.number().int().gte(0), last_modified_seconds: z.number().int(), num_bytes: z.number().int().gte(0), path: z.string()});

export const listCommitEntryResponse = z.object({oxen_version: z.string().nullable().optional(), status: z.string(), status_message: z.string(), entries: z.array(commitEntry)});

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 missing files from commits
 * 
 * GET /api/repos/{namespace}/{repo_name}/commits/missing_files
 */
export const getApiApiReposNamespaceRepoNameCommitsMissingFiles = async (args: GetApiApiReposNamespaceRepoNameCommitsMissingFilesArgs, options?: GetApiApiReposNamespaceRepoNameCommitsMissingFilesOptions) => {
const {baseUrl = "https://hub.oxen.ai", fetch: fetchFn = fetch, apiKey} = options ?? {}

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

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

const url = `${baseUrl.replace(/\/+$/, '')}/api/repos/${encodeURIComponent(String(args.namespace))}/${encodeURIComponent(String(args.repo_name))}/commits/missing_files${query.size > 0 ? `?${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(listCommitEntryResponse, await res.json())
};