syntax = "proto3";

package appks.im.v1;

import "google/protobuf/timestamp.proto";

// Member management service for the IM microservice.
// Provides CRUD for channel members, join/leave, and membership checks.

enum Role {
  ROLE_UNSPECIFIED = 0;
  ROLE_OWNER = 1;
  ROLE_ADMIN = 2;
  ROLE_MAINTAINER = 3;
  ROLE_MODERATOR = 4;
  ROLE_MEMBER = 5;
  ROLE_CONTRIBUTOR = 6;
  ROLE_VIEWER = 7;
  ROLE_GUEST = 8;
  ROLE_BOT = 9;
}

enum MemberStatus {
  MEMBER_STATUS_UNSPECIFIED = 0;
  MEMBER_STATUS_ACTIVE = 1;
  MEMBER_STATUS_INVITED = 2;
  MEMBER_STATUS_LEFT = 3;
  MEMBER_STATUS_KICKED = 4;
  MEMBER_STATUS_BANNED = 5;
}


message ChannelMember {
  string id = 1;
  string channel_id = 2;
  string user_id = 3;
  string role = 4;
  string status = 5;
  bool muted = 6;
  bool pinned = 7;
  optional string last_read_message_id = 8;
  optional google.protobuf.Timestamp last_read_at = 9;
  optional google.protobuf.Timestamp joined_at = 10;
  optional google.protobuf.Timestamp left_at = 11;
  google.protobuf.Timestamp created_at = 12;
  google.protobuf.Timestamp updated_at = 13;
}


message ListMembersRequest {
  string channel_id = 1;
  optional string status = 2;
  int32 limit = 3;
  int32 offset = 4;
}

message ListMembersResponse {
  repeated ChannelMember members = 1;
  int32 total = 2;
}

message InviteMemberRequest {
  string channel_id = 1;
  string user_id = 2;
  optional string role = 3;
}

message InviteMemberResponse {
  ChannelMember member = 1;
}

message UpdateMemberRequest {
  string channel_id = 1;
  string user_id = 2;
  optional string role = 3;
  optional bool muted = 4;
  optional bool pinned = 5;
}

message UpdateMemberResponse {
  ChannelMember member = 1;
}

message KickMemberRequest {
  string channel_id = 1;
  string user_id = 2;
}

message KickMemberResponse {}

message JoinChannelRequest {
  string channel_id = 1;
  string user_id = 2;
}

message JoinChannelResponse {
  ChannelMember member = 1;
}

message LeaveChannelRequest {
  string channel_id = 1;
  string user_id = 2;
}

message LeaveChannelResponse {}

message IsMemberRequest {
  string channel_id = 1;
  string user_id = 2;
}

message IsMemberResponse {
  bool is_member = 1;
  string role = 2;
}


service MemberService {
  rpc ListMembers(ListMembersRequest) returns (ListMembersResponse);
  rpc InviteMember(InviteMemberRequest) returns (InviteMemberResponse);
  rpc UpdateMember(UpdateMemberRequest) returns (UpdateMemberResponse);
  rpc KickMember(KickMemberRequest) returns (KickMemberResponse);
  rpc JoinChannel(JoinChannelRequest) returns (JoinChannelResponse);
  rpc LeaveChannel(LeaveChannelRequest) returns (LeaveChannelResponse);
  rpc IsMember(IsMemberRequest) returns (IsMemberResponse);
}