import {z} from 'zod'

export type GetApiApiMcpClientsArgs = {limit?: number | undefined, offset?: number | undefined, search?: string | undefined, server?: string | undefined, connection_type?: string | undefined, auth_type?: string | undefined, state?: string | undefined, all_virtual_keys?: boolean | undefined, virtual_keys?: string | undefined, code_mode?: boolean | undefined, disabled?: boolean | undefined};

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

export const mCPClientConfig = z.object({client_id: z.string().optional(), name: z.string().optional(), is_code_mode_client: z.boolean().optional(), connection_type: z.enum(["http", "stdio", "sse", "inprocess"]).optional(), connection_string: z.string().optional(), stdio_config: z.object({command: z.string().optional(), args: z.array(z.string()).optional(), envs: z.array(z.string()).optional()}).optional(), tls_config: z.object({insecure_skip_verify: z.boolean().optional(), ca_cert_pem: z.string().optional()}).optional(), auth_type: z.enum(["none", "headers", "oauth", "per_user_oauth", "per_user_headers"]).optional(), oauth_config_id: z.string().optional(), headers: z.record(z.string(), z.string()).optional(), tools_to_execute: z.array(z.string()).optional(), tools_to_auto_execute: z.array(z.string()).optional(), tool_pricing: z.record(z.string(), z.number()).optional(), allow_on_all_virtual_keys: z.boolean().optional(), per_user_header_keys: z.array(z.string()).optional(), disabled: z.boolean().optional()});

export const mCPClient = z.object({config: mCPClientConfig.optional(), tools: z.array(z.object({name: z.string().optional(), description: z.string().optional(), parameters: z.record(z.string(), z.unknown()).optional(), strict: z.boolean().optional()})).optional(), state: z.enum(["connected", "disconnected", "error", "pending_tools", "disabled"]).optional(), vk_configs: z.array(z.object({virtual_key_id: z.string().optional(), virtual_key_name: z.string().optional(), tools_to_execute: z.array(z.string()).optional()})).optional()});

export const getApiApiMcpClientsResponse = z.object({clients: z.array(mCPClient), count: z.number().int(), total_count: z.number().int(), limit: z.number().int(), offset: 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
};

/**
 * List MCP clients
 * 
 * GET /api/mcp/clients
 */
export const getApiApiMcpClients = async (args: GetApiApiMcpClientsArgs, options?: GetApiApiMcpClientsOptions) => {
const {baseUrl = "http://localhost:8080", fetch: fetchFn = fetch, ManagementBearerAuth} = options ?? {}

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

if (args.limit != null) query.append("limit", String(args.limit))
if (args.offset != null) query.append("offset", String(args.offset))
if (args.search != null) query.append("search", String(args.search))
if (args.server != null) query.append("server", String(args.server))
if (args.connection_type != null) query.append("connection_type", String(args.connection_type))
if (args.auth_type != null) query.append("auth_type", String(args.auth_type))
if (args.state != null) query.append("state", String(args.state))
if (args.all_virtual_keys != null) query.append("all_virtual_keys", String(args.all_virtual_keys))
if (args.virtual_keys != null) query.append("virtual_keys", String(args.virtual_keys))
if (args.code_mode != null) query.append("code_mode", String(args.code_mode))
if (args.disabled != null) query.append("disabled", String(args.disabled))
if (ManagementBearerAuth !== undefined) headers.set('authorization', `Bearer ${ManagementBearerAuth}`)

const url = `${baseUrl.replace(/\/+$/, '')}/api/mcp/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(getApiApiMcpClientsResponse, await res.json())
};