import {z} from 'zod'

export type GetApiFilesystemSearchPathArgs = {path: string, maxResults?: number | undefined, patterns?: string | undefined, excludeDirs?: string | undefined, excludeHidden?: boolean | undefined};

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

export const fuzzySearchMatch = z.object({path: z.string(), score: z.number().int(), type: z.string()});

export const fuzzySearchResponse = z.object({matches: z.array(fuzzySearchMatch), total: z.number().int()});

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
};

/**
 * Fuzzy search for files and directories
 * 
 * GET /filesystem-search/{path}
 * 
 * Also accepts auth: ApiKeyAuth
 */
export const getApiFilesystemSearchPath = async (args: GetApiFilesystemSearchPathArgs, options?: GetApiFilesystemSearchPathOptions) => {
const {baseUrl = "https://api.blaxel.ai/v0", fetch: fetchFn = fetch, OAuth2} = options ?? {}

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

if (args.maxResults != null) query.append("maxResults", String(args.maxResults))
if (args.patterns != null) query.append("patterns", String(args.patterns))
if (args.excludeDirs != null) query.append("excludeDirs", String(args.excludeDirs))
if (args.excludeHidden != null) query.append("excludeHidden", String(args.excludeHidden))
if (OAuth2 !== undefined) headers.set('authorization', `Bearer ${OAuth2}`)

const url = `${baseUrl.replace(/\/+$/, '')}/filesystem-search/${encodeURIComponent(String(args.path))}${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(fuzzySearchResponse, await res.json())
};