import {z} from 'zod'

export type GetApiV1ConnectedClientsArgs = {minConnectionSeconds?: number | undefined, isOverseer?: boolean | undefined, authenticated?: boolean | undefined, userAddresses?: string | undefined, userAddress?: string | undefined, tokenName?: string | undefined, limit?: number | undefined, offset?: number | undefined, room?: string | undefined};

export type GetApiV1ConnectedClientsOptions = {baseUrl?: string | undefined, apiKeyAuth?: string | undefined, fetch?: typeof fetch | undefined};

export const connectedClientResponseDto = z.object({address: z.string().optional(), authenticated: z.boolean(), connectedAt: z.string(), lastActivity: z.string(), rooms: z.array(z.string()), socketId: z.string(), userAgent: z.string().optional()});

export const connectedClientsPaginationResponseDto = z.object({hasMore: z.boolean(), limit: z.number(), offset: z.number(), total: z.number()});

export const connectedRoomSummaryResponseDto = z.object({authenticatedCount: z.number(), connectedCount: z.number(), room: z.string()});

export const connectedClientsSummaryResponseDto = z.object({anonymousCount: z.number(), authenticatedCount: z.number(), overseerCount: z.number().optional(), requestedUsersOnline: z.array(z.string()).optional(), roomCounts: z.record(z.string(), z.number()), rooms: z.array(connectedRoomSummaryResponseDto), totalConnected: z.number()});

export const connectedClientsResponseDto = z.object({clients: z.array(connectedClientResponseDto), pagination: connectedClientsPaginationResponseDto, summary: connectedClientsSummaryResponseDto});

export const getApiV1ConnectedClientsResponse = z.object({error: z.literal(false), message: z.string(), status: z.number(), data: connectedClientsResponseDto});

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 connected WebSocket clients
 * 
 * GET /v1/connected-clients
 * 
 * Also accepts auth: bearer
 */
export const getApiV1ConnectedClients = async (args: GetApiV1ConnectedClientsArgs, options?: GetApiV1ConnectedClientsOptions) => {
const {baseUrl = "https://lpad-backend.stage.defi.ovh.gala.com", fetch: fetchFn = fetch, apiKeyAuth} = options ?? {}

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

if (args.minConnectionSeconds != null) query.append("minConnectionSeconds", String(args.minConnectionSeconds))
if (args.isOverseer != null) query.append("isOverseer", String(args.isOverseer))
if (args.authenticated != null) query.append("authenticated", String(args.authenticated))
if (args.userAddresses != null) query.append("userAddresses", String(args.userAddresses))
if (args.userAddress != null) query.append("userAddress", String(args.userAddress))
if (args.tokenName != null) query.append("tokenName", String(args.tokenName))
if (args.limit != null) query.append("limit", String(args.limit))
if (args.offset != null) query.append("offset", String(args.offset))
if (args.room != null) query.append("room", String(args.room))
if (apiKeyAuth !== undefined) headers.set("x-api-key", apiKeyAuth)

const url = `${baseUrl.replace(/\/+$/, '')}/v1/connected-clients${query.size > 0 ? `?${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(getApiV1ConnectedClientsResponse, await res.json())
};