Files
EchoChat/backend/go-service/app/meeting/service/interfaces.go
bujinyuan d22f61fb9b feat(phase2e-2): Go meeting 模块 DDL + Model + DAO + service/controller/router 骨架(Task 3+4)
Task 3 - 数据库与持久化层:
- init.sql 追加 3 张表(meeting_rooms / meeting_participants / meeting_chats)+ 9 索引 + 全量 COMMENT
- 新增 phase2e2_migration.sql 增量升级脚本(IF NOT EXISTS 幂等)
- app/constants/meeting.go 统一会议常量(类型/状态/角色/结束原因/离会原因/默认配置/WS 事件 8 组)
- app/meeting/model 3 个 model + GORM tag(TIMESTAMP(0) 对齐现有表风格)
- app/meeting/dao 3 个 DAO 共 24 个方法:
  * meeting_room_dao:Create/Get/Exists/MarkStarted/MarkEnded(乐观锁)/UpdateHost/UpdateSettings/ListByHost/ListExpiredForCleanup
  * meeting_participant_dao:JoinRoom(事务内复用旧记录)/LeaveRoom(EXTRACT(EPOCH) DB 时间)/LeaveAllActive/TransferHost(事务)/FindActiveByUser(JOIN 单点校验)/列表计数更新
  * meeting_chat_dao:Create/ListByRoom(游标)/DeleteByRoomIDs/CountByRoom
- psql 真库跑通 CRUD + UNIQUE + CASCADE + 主持人转让事务 + duration=10s 精确匹配 8 场景

Task 4 - Go 侧 service/controller/router/wire 骨架:
- app/meeting/service/interfaces.go:NotifyPusher / UserInfoResolver / OnlineChecker 三接口(解耦 notify/contact/ws)
- app/meeting/service/meeting_service.go:MeetingService + 8 sentinel error + 17 个空方法(返回 ErrNotImplemented)
- app/meeting/controller/meeting_controller.go:12 个 Gin handler + responseNotImplemented(501)
- app/meeting/router.go:12 条路由挂 /api/v1/meeting/* 并套 jwtAuth(扁平化 router.go,与 group/notify 一致)
- app/meeting/provider.go:MeetingSet = wire.NewSet(DAO×3, Service, Controller)
- 全局 wire.go 挂入 MeetingSet + 3 条 wire.Bind(Notify/UserInfo/Online);App struct/NewApp 加字段;router/router.go 挂载
- 存量修复:admin/provider.go 补齐 MessageManage{DAO,Service,Controller} 解决旧版 wire 重生成报 no provider found
- 验证:go build ./... / go vet ./... / wire ./app/provider 零错误;GIN_MODE=debug 启动打印全部 12 条路由;无 token curl 3 条代表性路由均返回 401(JWT 中间件生效)

关键风格修正(偏离草案):
- 常量归入 app/constants/meeting.go 单文件(与 group.go / notify.go 同构),非草案 app/meeting/constants/
- TIMESTAMP(0) 取代草案 TIMESTAMPTZ 对齐所有现有表
- 冗余 idx_meeting_rooms_code 移除(UNIQUE 已自动建索引)
- router/provider 目录扁平化(app/meeting/router.go / app/meeting/provider.go)
- 延续项目 Go 侧"零 _test.go"风格,用代码审查 + psql 真库验证 + Playwright E2E 三层守护

文档同步:
- docs/progress/CURRENT_STATUS.md 新增 Task 3 / Task 4 交付段落
- .cursor/rules/project-context.mdc Phase 2e-2 进度推进至 Task 0-4 
- docs/plans/2026-04-21-phase2e-2-implementation.plan.md Task 3 / Task 4 标记完成 + 实际产出 vs 计划差异

Made-with: Cursor
2026-04-21 16:04:57 +08:00

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// Package service 提供 meeting 模块的业务逻辑
package service
import (
"context"
authModel "github.com/echochat/backend/app/auth/model"
notifyService "github.com/echochat/backend/app/notify/service"
)
// NotifyPusher 通知推送接口
// 由 notify.service.NotifyService 隐式实现,供 meeting 模块注入使用
// 会议邀请、主持人变更、踢出会议等事件通过此接口落地通知中心
type NotifyPusher interface {
Push(ctx context.Context, payload *notifyService.PushPayload)
PushBatch(ctx context.Context, payloads []*notifyService.PushPayload)
}
// UserInfoResolver 查询用户昵称 / 头像的接口
// 由 contact.FriendshipDAO 隐式实现(已有 GetUsersByIDs 方法)
// 用于拉取会议邀请中主持人信息、成员列表头像等
type UserInfoResolver interface {
GetUsersByIDs(ctx context.Context, userIDs []int64) ([]authModel.User, error)
}
// OnlineChecker 查询用户在线状态的接口
// 由 ws.OnlineService 隐式实现(签名对齐现有实现:不返回 error查询失败按离线处理
// 用于会议邀请时判断收件人是否在线(离线则降级为仅通知入库,上线时通过未读补偿推送)
type OnlineChecker interface {
IsOnline(ctx context.Context, userID int64) bool
}