syntax = "proto3";

package hyperlog;

message UserGraphItem {
  map<string, GraphItem> items = 1;
    
}
message SectionGraphItem {
  map<string, GraphItem> items = 1;
}

message ItemStateNotDone {}
message ItemStateDone {}

message ItemGraphItem {
  string title = 1;
  string description = 2;
  oneof item_state {
    ItemStateNotDone not_done = 3;
    ItemStateDone done = 4;
  }
}

message GraphItem {
  oneof contents {
    UserGraphItem user = 1;
    SectionGraphItem section = 2;
    ItemGraphItem item = 3;
  }
}

service Graph {
  // Commands
  rpc CreateSection(CreateSectionRequest) returns (CreateSectionResponse);
  rpc CreateRoot(CreateRootRequest) returns (CreateRootResponse);
  rpc CreateItem(CreateItemRequest) returns (CreateItemResponse);
  rpc UpdateItem(UpdateItemRequest) returns (UpdateItemResponse);
  
  // Queriers
  rpc GetAvailableRoots(GetAvailableRootsRequest) returns (GetAvailableRootsResponse);
  rpc Get(GetRequest) returns (GetReply);

}

// Commands
message CreateSectionRequest {
  string root = 1;
  repeated string path = 2;
}
message CreateSectionResponse {}

message CreateRootRequest {
  string root = 1;
}
message CreateRootResponse {}

message CreateItemRequest {
  string root = 1;
  repeated string path = 2;
  ItemGraphItem item = 3;
}
message CreateItemResponse {}

message UpdateItemRequest {
  string root = 1;
  repeated string path = 2;
  ItemGraphItem item = 3;
}
message UpdateItemResponse {}

// Queries
message GetAvailableRootsRequest {}
message GetAvailableRootsResponse {
  repeated string roots = 1;
}

message GetRequest {
  string root = 1;
  repeated string paths = 2;
}

message GetReply {
  GraphItem item = 1;
}