syntax = "proto3";

package hyapp.events.room.v1;

option go_package = "hyapp.local/api/proto/events/room/v1;roomeventsv1";

// EventEnvelope 是 room-service outbox 的统一事件外壳。
// body 保存具体事件消息序列化后的二进制，event_type 负责告诉消费者如何解码。
message EventEnvelope {
  string event_id = 1;
  string room_id = 2;
  string event_type = 3;
  int64 room_version = 4;
  int64 occurred_at_ms = 5;
  bytes body = 6;
  string app_code = 7;
}

// RoomCreated 表达房间第一次建立成功。
message RoomCreated {
  int64 owner_user_id = 1;
  int32 seat_count = 3;
  string mode = 4;
  // room_name/room_avatar/room_description 是创建时确定的展示资料快照，消费者不需要反查 room-service。
  string room_name = 5;
  string room_avatar = 6;
  string room_description = 7;
}

// RoomProfileUpdated 表达房间展示资料或麦位数量变更。
message RoomProfileUpdated {
  int64 actor_user_id = 1;
  string room_name = 2;
  string room_avatar = 3;
  string room_description = 4;
  int32 seat_count = 5;
}

// RoomUserJoined 表达用户业务态进房成功。
message RoomUserJoined {
  int64 user_id = 1;
  string role = 2;
}

// RoomUserLeft 表达用户离房成功。
message RoomUserLeft {
  int64 user_id = 1;
}

// RoomClosed 表达房间生命周期关闭完成。
message RoomClosed {
  int64 actor_user_id = 1;
  string reason = 2;
}

// RoomMicChanged 表达任意上下麦和换麦位动作。
message RoomMicChanged {
  int64 actor_user_id = 1;
  int64 target_user_id = 2;
  int32 from_seat = 3;
  int32 to_seat = 4;
  string action = 5;
  // mic_session_id 用于把业务麦位事件和 RTC 发流会话绑定，客户端和 webhook 都必须透传。
  string mic_session_id = 6;
  // publish_state 透出 pending_publish/publishing/idle，避免把“占麦”和“已发流”混成一个状态。
  string publish_state = 7;
  // reason 表示系统触发的下麦原因，例如 publish_timeout。
  string reason = 8;
  int64 publish_deadline_ms = 9;
  int64 publish_event_time_ms = 10;
  bool mic_muted = 11;
}

// RoomMicSeatLocked 表达单个麦位锁定状态变更。
message RoomMicSeatLocked {
  int64 actor_user_id = 1;
  int32 seat_no = 2;
  bool locked = 3;
}

// RoomChatEnabledChanged 表达公屏开关状态变更。
message RoomChatEnabledChanged {
  int64 actor_user_id = 1;
  bool enabled = 2;
}

// RoomAdminChanged 表达房间管理员集合变更。
message RoomAdminChanged {
  int64 actor_user_id = 1;
  int64 target_user_id = 2;
  bool enabled = 3;
}

// RoomUserMuted 表达禁言状态变更。
message RoomUserMuted {
  int64 actor_user_id = 1;
  int64 target_user_id = 2;
  bool muted = 3;
}

// RoomUserKicked 表达踢人动作。
message RoomUserKicked {
  int64 actor_user_id = 1;
  int64 target_user_id = 2;
}

// RoomUserUnbanned 表达解除房间 ban。
message RoomUserUnbanned {
  int64 actor_user_id = 1;
  int64 target_user_id = 2;
}

// RoomGiftSent 表达送礼成功且已落房间状态。
message RoomGiftSent {
  int64 sender_user_id = 1;
  int64 target_user_id = 2;
  string gift_id = 3;
  int32 gift_count = 4;
  int64 gift_value = 5;
  string billing_receipt_id = 6;
  int64 visible_region_id = 7;
  string command_id = 8;
}

// RoomHeatChanged 表达热度变化结果。
message RoomHeatChanged {
  int64 delta = 1;
  int64 current_heat = 2;
}

// RoomRankChanged 表达本地礼物榜变化结果。
message RoomRankChanged {
  int64 user_id = 1;
  int64 score = 2;
  int64 gift_value = 3;
}