syntax = "proto3";

import "protobuf/src/google/protobuf/empty.proto";
import "protobuf/src/google/protobuf/timestamp.proto";

option go_package = "github.com/ChausseBenjamin/rafta/internal/server/model";

enum TaskState {
  TASK_UNDEFINED = 0;
  TASK_PENDING = 1;
  TASK_IN_PROGRESS = 2;
  TASK_DONE = 3;
  TASK_BLOCKED = 4;
}

message UserID {
  string uuid = 1;
}

message UserData {
  string name = 1;
  string email = 2;
  google.protobuf.Timestamp created_on = 3;
  google.protobuf.Timestamp last_login = 4;
}

message User {
  UserID id = 1;
  UserData data = 2;
}

message TaskID {
  string uuid = 1;
}

message TaskData {
  string title = 1;
  Description desc = 2; // markdown
  uint32 priority = 3;
  TaskState state = 4;
  google.protobuf.Timestamp created_on = 5;
  google.protobuf.Timestamp last_updated = 6;
  repeated string tags = 7;
}

message Description {
  string data = 1;
}

message Task {
  TaskID id = 1;
  TaskData data = 2;
}

message TaskList {
  repeated Task tasks = 1;
}

message UserList {
  repeated User users = 1;
}

service Rafta {
  // Retrieval
  rpc GetUserTasks(UserID) returns (TaskList);
  rpc GetAllUsers(google.protobuf.Empty) returns (UserList);
  rpc GetUser(UserID) returns (User);
  rpc GetTask(TaskID) returns (Task);

  // Task Manipulation
  rpc DeleteTask(TaskID) returns (google.protobuf.Empty);
  rpc UpdateTask(Task) returns (Task);
  rpc CreateTask(TaskData) returns (Task);

  // User Manipulation
  rpc DeleteUser(UserID) returns (google.protobuf.Empty);
  rpc UpdateUser(User) returns (User);
  rpc CreateUser(UserData) returns (User);
}