import {z} from 'zod'

export type GetApiAgentsDirectoryStatsArgs = {offset?: number | undefined, limit?: number | undefined, filter_text?: string | undefined};

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

export const agentServerDirectoryFileStats = z.object({name: z.string(), path: z.string(), size_bytes: z.number().int(), size_human_readable: z.string(), created_timestamp: z.number(), modified_timestamp: z.number(), created_date: z.string(), modified_date: z.string(), is_directory: z.boolean(), owner: z.string(), permissions: z.string(), sha256: z.string().optional()}).and(z.record(z.string(), z.unknown()));

export const agentServerDirectoryStats = z.object({id: z.string(), object: z.string(), size_bytes: z.number().int(), size_human_readable: z.string(), file_count: z.number().int(), directory_count: z.number().int(), created_timestamp: z.number(), modified_timestamp: z.number(), created_date: z.string(), modified_date: z.string(), is_empty: z.boolean(), top_level_contents: z.array(z.string()), owner: z.string(), permissions: z.string(), files: z.array(agentServerDirectoryFileStats).optional()}).and(z.record(z.string(), z.unknown()));

export const agentServerDirectoryStatsPerAgentChatSession = z.object({agent_chat_session_id: z.string(), chat_preview: z.string(), stats: z.array(agentServerDirectoryStats)});

export const getApiAgentsDirectoryStatsResponse = z.array(agentServerDirectoryStatsPerAgentChatSession);

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
};

/**
 * Lists agent directory stats across all agent chat sessions.
 * 
 * GET /agents/directory_stats
 */
export const getApiAgentsDirectoryStats = async (args: GetApiAgentsDirectoryStatsArgs, options?: GetApiAgentsDirectoryStatsOptions) => {
const {baseUrl = "https://h2ogpte.genai.h2o.ai/api/v1", fetch: fetchFn = fetch, bearerAuth} = options ?? {}

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

if (args.offset != null) query.append("offset", String(args.offset))
if (args.limit != null) query.append("limit", String(args.limit))
if (args.filter_text != null) query.append("filter_text", String(args.filter_text))
if (bearerAuth !== undefined) headers.set('authorization', `Bearer ${bearerAuth}`)

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