lan
ee78071d4d
This commit introduces several architectural improvements and optimizations across the codebase: - **Performance & Reliability**: - Implemented Redis pipelining in `ConversationCache.CacheMessage` to reduce network round-trips. - Added a circuit breaker to the JPush client to prevent cascading failures. - Introduced batch deletion and batch member addition capabilities in repositories. - Added message idempotency support using `client_msg_id` and a Redis-based cache. - Optimized WebSocket handling with connection limits (total and per-user) and improved error logging. - **Code Refactoring**: - Refactored `Router` to use a `RouterDeps` struct, simplifying the constructor and improving maintainability. - Unified model ID generation logic using new `id_helper.go` (supporting UUID and Snowflake). - Standardized JSON serialization/deserialization in models using `json_helper.go`. - Refactored DTO conversion logic, specifically for `UserResponse` (using functional options) and `Report` responses. - Removed redundant/deprecated DTOs like `PostDetailResponse` and `TradeItemDetailResponse`. - **Cache Improvements**: - Enhanced `LayeredCache` with `SetRaw` to avoid double-encoding when promoting values from Redis to local cache. - Added `DeleteBatch` support to the cache interface. - **Other Changes**: - Cleaned up `config.go` by removing redundant default values and explicit environment variable overrides. - Improved WebSocket registration flow to handle connection limits gracefully.
59 lines
3.7 KiB
Go
59 lines
3.7 KiB
Go
package model
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import (
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"time"
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"gorm.io/gorm"
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)
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// ConversationType 会话类型
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type ConversationType string
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const (
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ConversationTypePrivate ConversationType = "private" // 私聊
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ConversationTypeGroup ConversationType = "group" // 群聊
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ConversationTypeSystem ConversationType = "system" // 系统通知会话
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)
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// Conversation 会话实体
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// 使用雪花算法ID（作为string存储）和seq机制实现消息排序和增量同步
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type Conversation struct {
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ID string `gorm:"primaryKey;size:20" json:"id"` // 雪花算法ID（转为string避免精度丢失）
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Type ConversationType `gorm:"type:varchar(20);default:'private'" json:"type"` // 会话类型
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GroupID *string `gorm:"index" json:"group_id,omitempty"` // 关联的群组ID（群聊时使用，string类型避免JS精度丢失）；使用指针支持NULL值
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LastSeq int64 `gorm:"default:0" json:"last_seq"` // 最后一条消息的seq
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LastMsgTime *time.Time `json:"last_msg_time,omitempty"` // 最后消息时间
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CreatedAt time.Time `json:"created_at" gorm:"autoCreateTime"`
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UpdatedAt time.Time `json:"updated_at" gorm:"autoUpdateTime"`
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// 关联 - 使用 polymorphic 模式避免外键约束问题
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Participants []ConversationParticipant `gorm:"foreignKey:ConversationID" json:"participants,omitempty"`
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Group *Group `gorm:"foreignKey:GroupID;references:ID" json:"group,omitempty"`
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}
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// BeforeCreate 创建前生成雪花算法ID
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func (c *Conversation) BeforeCreate(tx *gorm.DB) error {
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return SetSnowflakeStringID(&c.ID)
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}
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func (Conversation) TableName() string {
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return "conversations"
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}
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// ConversationParticipant 会话参与者
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type ConversationParticipant struct {
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ID uint `gorm:"primaryKey" json:"id"`
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ConversationID string `gorm:"not null;size:20;uniqueIndex:idx_conversation_user,priority:1;index:idx_cp_conversation_user,priority:1" json:"conversation_id"` // 雪花算法ID（string类型）
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UserID string `gorm:"column:user_id;type:varchar(50);not null;uniqueIndex:idx_conversation_user,priority:2;index:idx_cp_conversation_user,priority:2;index:idx_cp_user_hidden_pinned_updated,priority:1" json:"user_id"` // UUID格式，与JWT中user_id保持一致
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LastReadSeq int64 `gorm:"default:0" json:"last_read_seq"` // 已读到的seq位置
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NotificationMuted bool `gorm:"column:muted;default:false" json:"notification_muted"` // 是否免打扰
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IsPinned bool `gorm:"default:false;index:idx_cp_user_hidden_pinned_updated,priority:3" json:"is_pinned"` // 是否置顶会话（用户维度）
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HiddenAt *time.Time `gorm:"index:idx_cp_user_hidden_pinned_updated,priority:2" json:"hidden_at,omitempty"` // 仅自己删除会话时使用，收到新消息后自动恢复
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CreatedAt time.Time `json:"created_at" gorm:"autoCreateTime"`
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UpdatedAt time.Time `json:"updated_at" gorm:"autoUpdateTime;index:idx_cp_user_hidden_pinned_updated,priority:4,sort:desc"`
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}
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func (ConversationParticipant) TableName() string {
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return "conversation_participants"
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}
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