angular
  .module("webui.services.rpc.syscall", [
    "webui.services.rpc.jsoncall",
    "webui.services.rpc.sockcall",
    "webui.services.utils",
    "webui.services.alerts"
  ])
  .factory("$syscall", [
    "$log",
    "$jsoncall",
    "$sockcall",
    "$alerts",
    function(log, jsonRPC, sockRPC, alerts) {
      return {
        state: "none",
        // called to initialize the rpc interface, call everytime configuration changes
        // conf has the following structure:
        // {
        //   host (string): host for the aria2 server
        //   port (number): port number for the aria2 server
        //   encrypt (boolean, optional): true if encryption is enabled in the aria2 server
        //   auth (optional): {
        //     token (string): secret token for authentication (--rpc-secret)
        //     user (string): username for http authentication if enabled
        //     pass (string): password for the http authentication if enabled
        //   }
        init: function(conf) {
          console.log("Syscall is initializing to", conf);
          this.state = "initializing";
          jsonRPC.init(conf);
          var syscall = this;
          sockRPC.init(conf, function() {
            console.log("Syscall is ready");
            syscall.state = "ready";
          });
        },

        // call this to start an rpc call, opts has the following structure:
        // {
        //   name (string): name of the actual aria2 syscall
        //   success (function): callback called with (parsed) data if rpc is successfull
        //   error (function): callback called when an error occurs
        //   params (array, optional): the params for some syscall (like multicall) and is optional for others
        // }
        invoke: function(opts) {
          opts.success = opts.success || angular.noop;
          opts.error = opts.error || angular.noop;

          if (sockRPC.initialized) {
            return sockRPC.invoke(opts);
          } else {
            return jsonRPC.invoke(opts);
          }
        }
      };
    }
  ]);