%% -*- erlang -*-

%% Copyright (C) 2014, Jaguar Land Rover
%%
%% This program is licensed under the terms and conditions of the
%% Mozilla Public License, version 2.0.  The full text of the 
%% Mozilla Public License is at https://www.mozilla.org/MPL/2.0/
%%
%% Configuration file for the (in-vehicle) IVI used by the hvac_demo
%%
%% See ../hvac_demo/README.md for details on the demo.
%%
%% See ../CONFIGURE.md for a details on the configuration process
%% itself.
%% 
[
 %% All erlang apps needed to fire up a node. Do not touch.
 {apps,
  [kernel,
   stdlib,
   sasl,
   {setup, load},
   syntax_tools,
   lager,
   crypto,
   public_key,
   exo,
   compiler,
   ssl,
   asn1,
   %% RVI-specific apps.

   %% Do not touch unless you are replacing apps with your own
   %% version.  If you are replacing an app with a non-Erlang version,
   %% it still has to be loaded in order to resolve.
   %% If, for example, you want to deploy your own scheduler 
   %% outside Erlang, replace
   %%
   %%     schedule,
   %% with
   %%     { schedule, load },
   %%
   rvi, 
   rvi_common,
   service_discovery,
   service_edge,
   authorize,
   schedule,
   dlink_tcp,
   bt,
   dlink_bt,
   proto_bert,
   proto_json ]},

 %%
 %% Custom environment settings
 %% for all apps running on the node.
 %%
 {env,
  [
   %% Lager is the main logging mechanism.
   %% See https://github.com/basho/lager for details.
   %%
   {lager, 
    [ { handlers, 
	%% Change this to debug, info, notice, warning, or error in
	%% order to lower the console chatter.
	[ {lager_console_backend, debug} ]
      }
    ]
   },
      
   %% All RVI configuration is done here.
   %% Please note that the rvi_node.sh launch script
   %% can still override the port range and static nodes
   %% through its command line parameters.
   %%
   {rvi, 
    [

     %% Specify the node address that data_link uses to listen to
     %% incoming traffic from other rvi nodes.
     %%
     %% This is the address that is announced to
     %% other rvi nodes during service discovery and should be
     %% forwarded through firewalls and port forwarding to to the port
     %% specified by the configuration entry rvi -> components ->
     %% data_link -> bert_rpc_server (see below).
     %%
     %% If this node is sitting behind a firewall and cannot
     %% receive incomign connections on any address, its
     %% node_address should be set to "0.0.0.0:0" to inform
     %% the remote node that it should not attempt to
     %% connect back to self.
     { node_address, "127.0.0.1:8807" },   

     %% Specify the prefix of all services that this rvi node is hosting.
     %% 
     %% All local services regsitering with service edge will be prefixed with 
     %% the string below when they are announced to remote rvi nodes
     %% that connect to this node (using the address specified
     %% by node_address above).
     %%
     %% If a locally connected service registers itself as 
     %% "hvac/fan_speed", and the node_service_prefix is
     %% "jlr.com/vin/1234/", this node will announce the service
     %% "jlr.com/vin/1234/hvac/fan_speed" as being available 
     %% to remotely connected rvi nodes. 
     %%
     %% Two rvi nodes should never have the same node_service_prefix
     %% value unless all services add a system-wide unique name
     %% to it.
     %% 
     { node_service_prefix, "jlr.com/bt/stoffe"},

     
     { routing_rules,
       [
	%% Make sure to have a default if you don't want your message
	%% to error out immediately. With a default the message will 
	%% be queued until it times out, waiting for a remote node
	%% to connect and announce that it can handle the targeted service.
	{ "", 
	  [
	   { proto_json_rpc, dlink_tcp_rpc}
	  ]
	}
       ]
     },	
     { components, 
       [
	%% A note about JSON-RPC calls vs gen_server calls:
	%%
	%% All locally connected services communicate with Service Edge
	%% through JSON-RPC, as specified below.
	%% 
	%% Communication between the RVi components, however, can be
	%% either JSON-RPC or gen_server calls.
	%%
	%% JSON-RPC calls provide compatability with replacement components
	%% written in languages other than Erlang.
	%%
	%% Gen_server calls provide native erlang inter-process calls that
	%% are about 4x faster than JSON-RPC when transmitting large data volumes.
	%%
	%% If one or more of the components below are replaced with external
	%% components, use JSON-RPC by specifying url and exo_http_opts
	%% for all components.
	%%
	%% If you are running an all-native erlang system, use gen_server calls
	%% by configuring gen_server.
	%% 
	%% If you specify both gen_server and url/exo_http_opts, the gen_server
	%% communicaiton path will be used for inter component communication.
	%%
	%% Please note that communication between two RVI nodes are
	%% not affected by this since data_link_bert_rpc will use
	%% BERT-RPC to communicate ( using the address/port specified
	%% by bert_rpc_server).
	%%

	{service_edge, 
	  [ 
	    %% Service_edge_rpc component is used as a gen_server
	    { service_edge_rpc, gen_server,
	    [ 
	      %% JSON-RPC address will be translated to
	      %% an URL looking like this:
	      %% http://127.0.0.1:8801
	      %%
	      %% This URL is used both for communication with
	      %% locally connected services and for intra-component
	      %% communication in case the access method for
	      %% service_edge_rpc is specified as json_rpc.
	      { json_rpc_address, { "127.0.0.1", 8801 } },

	      %% Websocket is used for websocket access, preferably
	      %% through the rvi.js package available for Javascript
	      %% apps in browsers and crosswalk who wants to interface
	      %% RVI.
	      { websocket, [ { port, 8808}]}
	    ]
	    }
	  ]
	},
	{ service_discovery, 
	  [ { service_discovery_rpc, gen_server, 
	      [
	       { json_rpc_address, { "127.0.0.1", 8802 }}
	      ]
	    }
	  ]
	},
	{ schedule, 
	  [ { schedule_rpc, json_rpc, 
	      [
	       { json_rpc_address, { "127.0.0.1", 8803 }}
	      ]
	    }
	  ]
	},
	{ authorize, 
	  [ { authorize_rpc, gen_server,
	      [ 
		{ json_rpc_address, { "127.0.0.1", 8804 } }
	      ]
	    }
	  ]
	},
	{ protocol, 
	  [ { proto_json_rpc, gen_server,
	      [ 
		{ json_rpc_address, { "127.0.0.1", 8805 } }
	      ]
	    }
	  ]
	},
	{ data_link, 
	  [ 
	    { dlink_tcp_rpc, gen_server,
	      [ 
		{ json_rpc_address, { "127.0.0.1", 8806 } },
		%% Bert_rpc server specifies the port we should
		%% listen to for incoming connections
		%% from other rvi nodes.
		%% A specific NIC address can also be specified
		%% through the {ip, "192.168.0.1" } tuple.
		{ server_opts, [ { port, 8807 }]}
		%% { persistent_connections, [ "38.129.64.13:8807" ]}
	      ]
	    },
	    { dlink_bt_rpc, gen_server,
	      [ 

		{ server_opts, [ { channel, 1 }]}
	      ]
	    }

	  ]
	}
       ]
     }
    ]}
]}
].