- NadekoBot class renamed to Bot

- Implemented grpc based coordinator. Supports restarting, killing single or all shards, as well as getting current shard statuses. (Adaptation of the one used by the public bot)
- Coord is setup via coord.yml file
- Methods from SelfService which deal with shard/bot restart etc have been moved to ICoordinator (with GrpcRemoteCoordinator being the default implementation atm)
- Vastly simplified NadekoBot/Program.cs

src/NadekoBot.Coordinator/Protos/coordinator.proto

@@ -0,0 +1,127 @@
+syntax = "proto3";
+import "google/protobuf/timestamp.proto";
+
+option csharp_namespace = "NadekoBot.Coordinator";
+
+package nadekobot;
+
+service Coordinator {
+  // sends update to coordinator to let it know that the shard is alive
+  rpc Heartbeat(HeartbeatRequest) returns (HeartbeatReply);
+  // restarts a shard given the id
+  rpc RestartShard(RestartShardRequest) returns (RestartShardReply);
+  // reshards given the new number of shards
+  rpc Reshard(ReshardRequest) returns (ReshardReply);
+  // Reload config
+  rpc Reload(ReloadRequest) returns (ReloadReply);
+  // Gets status of a single shard
+  rpc GetStatus(GetStatusRequest) returns (GetStatusReply);
+  // Get status of all shards
+  rpc GetAllStatuses(GetAllStatusesRequest) returns (GetAllStatusesReply);
+  // Restarts all shards. Queues them to be restarted at a normal rate. Setting Nuke to true will kill all shards right
+  // away
+  rpc RestartAllShards(RestartAllRequest) returns (RestartAllReply);
+  
+  // kill coordinator (and all shards as a consequence)
+  rpc Die(DieRequest) returns (DieReply);
+  
+  rpc SetConfigText(SetConfigTextRequest) returns (SetConfigTextReply);
+  
+  rpc GetConfigText(GetConfigTextRequest) returns (GetConfigTextReply);
+}
+
+enum ConnState {
+  Disconnected = 0;
+  Connecting = 1;
+  Connected = 2;
+}
+
+message HeartbeatRequest {
+  int32 shardId = 1;
+  int32 guildCount = 2;  
+  ConnState state = 3;
+}
+
+message HeartbeatReply {
+  bool gracefulImminent = 1;
+}
+
+message RestartShardRequest {
+  int32 shardId = 1;
+  // should it be queued for restart, set false to kill it and restart immediately with priority
+  bool queue = 2;
+}
+
+message RestartShardReply {
+  
+}
+
+message ReshardRequest {
+  int32 shards = 1;
+}
+
+message ReshardReply {
+  
+}
+
+message ReloadRequest {
+  
+}
+
+message ReloadReply {
+  
+}
+
+message GetStatusRequest {
+ int32 shardId = 1; 
+}
+
+message GetStatusReply {
+  int32 shardId = 1;
+  ConnState state = 2;
+  int32 guildCount = 3;
+  google.protobuf.Timestamp lastUpdate = 4;
+  bool scheduledForRestart = 5;
+  google.protobuf.Timestamp startedAt = 6;
+}
+
+message GetAllStatusesRequest {
+  
+}
+
+message GetAllStatusesReply {
+	repeated GetStatusReply Statuses = 1;
+}
+
+message RestartAllRequest {
+  bool nuke = 1;
+}
+
+message RestartAllReply {
+  
+}
+
+message DieRequest {
+  bool graceful = 1;
+}
+
+message DieReply {
+  
+}
+
+message GetConfigTextRequest {
+  
+}
+
+message GetConfigTextReply {
+  string configYml = 1;
+}
+
+message SetConfigTextRequest {
+  string configYml = 1;
+}
+
+message SetConfigTextReply {
+  bool success = 1;
+  string error = 2;
+}