fixes #547 get_game rpc

Author: aaylward

cpp/golf_grpc/server/golf_grpc_service.cc

@@ -70,6 +70,23 @@ Status GolfServiceImpl::SwapForDiscard(ServerContext* context,
 Status GolfServiceImpl::Knock(ServerContext* context, const golf_grpc::KnockRequest* request,
                               golf_grpc::KnockResponse* response) {
   return Status::OK;
+}
+
+grpc::Status GolfServiceImpl::GetGame(grpc::ServerContext* context,
+                                      const golf_grpc::GetGameRequest* request,
+                                      golf_grpc::GetGameResponse* response) {
+  auto status_or_game_state = gm_->getGameStateForUser(request->game_id(), request->user_id());
+  auto mutable_game_state = response->mutable_game_state();
+
+  auto status_to_return =
+      HandleGameStateResponse(status_or_game_state, request->user_id(), mutable_game_state);
+  if (status_to_return.ok()) {
+    auto& game_state = status_or_game_state.value();
+    if (mutable_game_state->your_turn() && game_state->getPeekedAtDrawPile()) {
+      FlipCard(mutable_game_state->mutable_top_draw(), game_state->getDrawPile());
+    }
+  }
+  return status_to_return;
 };
 
 void GolfServiceImpl::HydrateResponseGameState(const string& current_user_id,

cpp/golf_grpc/server/golf_grpc_service.h

@@ -29,6 +29,8 @@ class GolfServiceImpl final : public golf_grpc::Golf::Service {
                               golf_grpc::SwapForDiscardResponse* response) override;
   grpc::Status Knock(grpc::ServerContext* context, const golf_grpc::KnockRequest* request,
                      golf_grpc::KnockResponse* response) override;
+  grpc::Status GetGame(grpc::ServerContext* context, const golf_grpc::GetGameRequest* request,
+                       golf_grpc::GetGameResponse* response) override;
 
  private:
   void HydrateResponseGameState(const std::string& current_user_id,

protos/golf_grpc/golf.proto

@@ -13,6 +13,7 @@ service Golf {
   rpc SwapForDraw (SwapForDrawRequest) returns (SwapForDrawResponse) {}
   rpc SwapForDiscard (SwapForDiscardRequest) returns (SwapForDiscardResponse) {}
   rpc Knock (KnockRequest) returns (KnockResponse) {}
+  rpc GetGame (GetGameRequest) returns (GetGameResponse) {}
 }
 
 message RegisterUserRequest {
@@ -94,6 +95,15 @@ message KnockResponse {
   GameState game_state = 1;
 }
 
+message GetGameRequest {
+  string user_id = 1;
+  string game_id = 2;
+}
+
+message GetGameResponse {
+  GameState game_state = 1;
+}
+
 message VisibleHand {
   cards_proto.Card bottom_left = 1;
   cards_proto.Card bottom_right = 2;