Version: 0.9.77.dev.260505

后端： 1.阶段 6 CP4/CP5 目录收口与共享边界纯化 - 将 backend 根目录收口为 services、client、gateway、cmd、shared 五个一级目录 - 收拢 bootstrap、inits、infra/kafka、infra/outbox、conv、respond、pkg、middleware，移除根目录旧实现与空目录 - 将 utils 下沉到 services/userauth/internal/auth，将 logic 下沉到 services/schedule/core/planning - 将迁移期 runtime 桥接实现统一收拢到 services/runtime/{conv,dao,eventsvc,model}，删除 shared/legacy 与未再被 import 的旧 service 实现 - 将 gateway/shared/respond 收口为 HTTP/Gin 错误写回适配，shared/respond 仅保留共享错误语义与状态映射 - 将 HTTP IdempotencyMiddleware 与 RateLimitMiddleware 收口到 gateway/middleware - 将 GormCachePlugin 下沉到 shared/infra/gormcache，将共享 RateLimiter 下沉到 shared/infra/ratelimit，将 agent token budget 下沉到 services/agent/shared - 删除 InitEino 兼容壳，收缩 cmd/internal/coreinit 仅保留旧组合壳残留域初始化语义 - 更新微服务迁移计划与桌面 checklist，补齐 CP4/CP5 当前切流点、目录终态与验证结果 - 完成 go test ./...、git diff --check 与最终真实 smoke；health、register/login、task/create+get、schedule/today、task-class/list、memory/items、agent chat/meta/timeline/context-stats 全部 200，SSE 合并结果为 CP5_OK 且 [DONE] 只有 1 个
2026-05-05 23:25:07 +08:00
parent 2a96f4c6f9
commit 3b6fca44a6
226 changed files with 731 additions and 3497 deletions
--- a/backend/services/runtime/dao/schedule.go
+++ b/backend/services/runtime/dao/schedule.go
@@ -0,0 +1,671 @@
+package dao
+
+import (
+	"context"
+	"errors"
+	"fmt"
+	"time"
+
+	"github.com/LoveLosita/smartflow/backend/services/runtime/model"
+	"github.com/LoveLosita/smartflow/backend/shared/respond"
+	"gorm.io/gorm"
+)
+
+type ScheduleDAO struct {
+	db *gorm.DB
+}
+
+// NewScheduleDAO 创建TaskClassDAO实例
+func NewScheduleDAO(db *gorm.DB) *ScheduleDAO {
+	return &ScheduleDAO{
+		db: db,
+	}
+}
+
+func (d *ScheduleDAO) WithTx(tx *gorm.DB) *ScheduleDAO {
+	return &ScheduleDAO{db: tx}
+}
+
+func (d *ScheduleDAO) AddSchedules(schedules []model.Schedule) ([]int, error) {
+	if err := d.db.Create(&schedules).Error; err != nil {
+		return nil, err
+	}
+	ids := make([]int, len(schedules))
+	for i, s := range schedules {
+		ids[i] = s.ID
+	}
+	return ids, nil
+}
+
+func (d *ScheduleDAO) EmbedTaskIntoSchedule(startSection, endSection, dayOfWeek, week, userID, taskID int) error {
+	// 仅更新指定：用户/周/星期/节次区间 的记录，将 embedded_task_id 精准写入 taskID
+	res := d.db.
+		Table("schedules").
+		Where("user_id = ? AND week = ? AND day_of_week = ? AND section BETWEEN ? AND ?", userID, week, dayOfWeek, startSection, endSection).
+		Update("embedded_task_id", taskID)
+
+	return res.Error
+}
+
+func (d *ScheduleDAO) GetCourseUserIDByID(ctx context.Context, courseScheduleEventID int) (int, error) {
+	type row struct {
+		UserID *int `gorm:"column:user_id"`
+	}
+
+	var r row
+	err := d.db.WithContext(ctx).
+		Table("schedule_events").
+		Select("user_id").
+		Where("id = ?", courseScheduleEventID).
+		First(&r).Error
+	if err != nil {
+		if errors.Is(err, gorm.ErrRecordNotFound) {
+			return 0, respond.WrongCourseID
+		}
+		return 0, err
+	}
+	if r.UserID == nil {
+		return 0, respond.WrongCourseID
+	}
+	return *r.UserID, nil
+}
+
+// IsCourseEmbeddedByOtherTaskBlock 判断课程在给定节次区间内是否已被其他任务块嵌入（用于业务限制）
+func (d *ScheduleDAO) IsCourseEmbeddedByOtherTaskBlock(ctx context.Context, courseID, startSection, endSection int) (bool, error) {
+	// 若区间非法，视为不冲突
+	if startSection <= 0 || endSection <= 0 || startSection > endSection {
+		return false, nil
+	}
+
+	var cnt int64
+	err := d.db.WithContext(ctx).
+		Table("schedules").
+		Where("id = ?", courseID).
+		Where("section BETWEEN ? AND ?", startSection, endSection).
+		Where("embedded_task_id IS NOT NULL AND embedded_task_id <> 0").
+		Count(&cnt).Error
+	if err != nil {
+		return false, err
+	}
+	return cnt > 0, nil
+}
+
+func (d *ScheduleDAO) HasUserScheduleConflict(ctx context.Context, userID, week, dayOfWeek int, sections []int) (bool, error) {
+	// 无节次则视为无冲突
+	if len(sections) == 0 {
+		return false, nil
+	}
+	// 统计同一用户、同一周、同一天、且节次有交集的排程数量
+	// 约定表字段：user_id, week, day_of_week, section
+	var cnt int64
+	err := d.db.WithContext(ctx).
+		Table("schedules").
+		Where("user_id = ? AND week = ? AND day_of_week = ?", userID, week, dayOfWeek).
+		Where("section IN ?", sections).
+		Count(&cnt).Error
+	if err != nil {
+		return false, err
+	}
+	return cnt > 0, nil
+}
+
+func (d *ScheduleDAO) IsCourseTimeMatch(ctx context.Context, courseScheduleEventID, week, dayOfWeek, startSection, endSection int) (bool, error) {
+	// 区间非法直接不匹配
+	if startSection <= 0 || endSection <= 0 || startSection > endSection {
+		return false, nil
+	}
+
+	// 核对该课程事件在指定 周\+星期 下，是否存在覆盖整个节次区间的排程记录
+	// 说明：此处按你当前表结构的用法（schedule\_events 存事件，schedules 存节次明细）来写：
+	// schedules 里通过 schedule\_event\_id 关联到 schedule\_events.id
+	var cnt int64
+	err := d.db.WithContext(ctx).
+		Table("schedules").
+		Where("event_id = ?", courseScheduleEventID).
+		Where("week = ? AND day_of_week = ?", week, dayOfWeek).
+		Where("section BETWEEN ? AND ?", startSection, endSection).
+		Count(&cnt).Error
+	if err != nil {
+		return false, err
+	}
+
+	// 需要区间内的每一节都存在记录才算匹配
+	return cnt == int64(endSection-startSection+1), nil
+}
+
+func (d *ScheduleDAO) AddScheduleEvent(scheduleEvent *model.ScheduleEvent) (int, error) {
+	if err := d.db.Create(&scheduleEvent).Error; err != nil {
+		return 0, err
+	}
+	return scheduleEvent.ID, nil
+}
+
+// CheckScheduleConflict 检查给定的 Schedule 切片中是否存在课程的冲突（即同一用户、同一周、同一天、且节次有交集的记录，并且只管课程，不管其它任务类型）
+func (d *ScheduleDAO) CheckScheduleConflict(ctx context.Context, schedules []model.Schedule) (bool, error) {
+	if len(schedules) == 0 {
+		return false, nil
+	}
+
+	// 聚合：同一 user/week/day 的节次去重后一次性查库
+	type key struct {
+		UserID    int
+		Week      int
+		DayOfWeek int
+	}
+	groups := make(map[key]map[int]struct{})
+
+	for _, s := range schedules {
+		// 基础字段不合法直接跳过（按不冲突处理）
+		if s.UserID <= 0 || s.Week <= 0 || s.DayOfWeek <= 0 || s.Section <= 0 {
+			continue
+		}
+		k := key{UserID: s.UserID, Week: s.Week, DayOfWeek: s.DayOfWeek}
+		if _, ok := groups[k]; !ok {
+			groups[k] = make(map[int]struct{})
+		}
+		groups[k][s.Section] = struct{}{}
+	}
+
+	for k, set := range groups {
+		if len(set) == 0 {
+			continue
+		}
+
+		sections := make([]int, 0, len(set))
+		for sec := range set {
+			sections = append(sections, sec)
+		}
+
+		// 仅判断“课程（type=course）”是否冲突：
+		// schedules.event_id -> schedule_events.id，再用 schedule_events.type 过滤
+		var cnt int64
+		err := d.db.WithContext(ctx).
+			Table("schedules s").
+			Joins("JOIN schedule_events e ON e.id = s.event_id").
+			Where("s.user_id = ? AND s.week = ? AND s.day_of_week = ?", k.UserID, k.Week, k.DayOfWeek).
+			Where("s.section IN ?", sections).
+			Where("e.type = ?", "course").
+			Count(&cnt).Error
+		if err != nil {
+			return false, err
+		}
+		if cnt > 0 {
+			return true, nil
+		}
+	}
+
+	return false, nil
+}
+
+func (d *ScheduleDAO) GetNonCourseScheduleConflicts(ctx context.Context, newSchedules []model.Schedule) ([]model.Schedule, error) {
+	if len(newSchedules) == 0 {
+		return nil, nil
+	}
+
+	// 1. 构建指纹图：用于快速比对坐标
+	userID := newSchedules[0].UserID
+	weeksMap := make(map[int]bool)
+	newSlotsFingerprints := make(map[string]bool)
+
+	for _, s := range newSchedules {
+		weeksMap[s.Week] = true
+		key := fmt.Sprintf("%d-%d-%d", s.Week, s.DayOfWeek, s.Section)
+		newSlotsFingerprints[key] = true
+	}
+
+	weeks := make([]int, 0, len(weeksMap))
+	for w := range weeksMap {
+		weeks = append(weeks, w)
+	}
+
+	// 2. 第一步：定义一个临时小结构体，精准捞取坐标和 EventID
+	type simpleSlot struct {
+		EventID   int
+		Week      int
+		DayOfWeek int
+		Section   int
+	}
+	var candidates []simpleSlot
+
+	// 💡 这里的逻辑：只查索引覆盖到的字段，速度极快
+	err := d.db.WithContext(ctx).
+		Table("schedules").
+		Select("schedules.event_id, schedules.week, schedules.day_of_week, schedules.section").
+		Joins("JOIN schedule_events ON schedule_events.id = schedules.event_id").
+		Where("schedules.user_id = ? AND schedules.week IN ? AND schedule_events.type != ?", userID, weeks, "course").
+		Scan(&candidates).Error
+
+	if err != nil {
+		return nil, err
+	}
+
+	// 3. 筛选出真正碰撞的 EventID
+	eventIDMap := make(map[int]bool)
+	for _, s := range candidates {
+		key := fmt.Sprintf("%d-%d-%d", s.Week, s.DayOfWeek, s.Section)
+		if newSlotsFingerprints[key] {
+			eventIDMap[s.EventID] = true
+		}
+	}
+
+	if len(eventIDMap) == 0 {
+		return nil, nil
+	}
+
+	// 4. 第二步：“抄全家”——根据碰撞到的 ID 捞出这些任务的所有原子槽位
+	var ids []int
+	for id := range eventIDMap {
+		ids = append(ids, id)
+	}
+
+	var fullConflicts []model.Schedule
+	// 💡 关键：这里必须 Preload("Event")，这样 DTO 才有名称显示
+	err = d.db.WithContext(ctx).
+		Preload("Event").
+		Where("event_id IN ?", ids).
+		Find(&fullConflicts).Error
+
+	return fullConflicts, err
+}
+func (d *ScheduleDAO) GetUserTodaySchedule(ctx context.Context, userID, week, dayOfWeek int) ([]model.Schedule, error) {
+	var schedules []model.Schedule
+
+	// 1. Preload("Event"): 拿到课程/任务的基础信息（名、地、型）
+	// 2. Preload("EmbeddedTask"): 拿到“水课”里嵌入的具体任务详情
+	err := d.db.WithContext(ctx).
+		Preload("Event").
+		Preload("EmbeddedTask").
+		Where("user_id = ? AND week = ? AND day_of_week = ?", userID, week, dayOfWeek).
+		Order("section ASC").
+		Find(&schedules).Error
+
+	if err != nil {
+		return nil, err
+	}
+
+	return schedules, nil
+}
+
+func (d *ScheduleDAO) GetUserWeeklySchedule(ctx context.Context, userID, week int) ([]model.Schedule, error) {
+	var schedules []model.Schedule
+
+	err := d.db.WithContext(ctx).
+		Preload("Event").
+		Preload("EmbeddedTask").
+		Where("user_id = ? AND week = ?", userID, week).
+		Order("day_of_week ASC, section ASC").
+		Find(&schedules).Error
+
+	if err != nil {
+		return nil, err
+	}
+
+	return schedules, nil
+}
+
+func (d *ScheduleDAO) DeleteScheduleEventAndSchedule(ctx context.Context, eventID int, userID int) error {
+	return d.db.WithContext(ctx).Transaction(func(tx *gorm.DB) error {
+		// 先查出要删除的 schedules，让 GORM 在 Delete 时能带上模型字段（供钩子读取 UserID/Week）
+		var schedules []model.Schedule
+		if err := tx.
+			Where("event_id = ? AND user_id = ?", eventID, userID).
+			Find(&schedules).Error; err != nil {
+			return err
+		}
+
+		// 显式删子表 schedules（触发 schedules 的 GORM Delete 回调/插件）
+		if len(schedules) > 0 {
+			if err := tx.Delete(&schedules).Error; err != nil {
+				return err
+			}
+		}
+
+		// 再删父表 schedule_events（同样触发回调/插件）
+		res := tx.Where("id = ? AND user_id = ?", eventID, userID).
+			Delete(&model.ScheduleEvent{})
+		if res.Error != nil {
+			return res.Error
+		}
+		if res.RowsAffected == 0 {
+			return respond.WrongScheduleEventID
+		}
+		return nil
+	})
+}
+
+func (d *ScheduleDAO) GetScheduleTypeByEventID(ctx context.Context, eventID, userID int) (string, error) {
+	type row struct {
+		Type *string `gorm:"column:type"`
+	}
+	var r row
+	err := d.db.WithContext(ctx).
+		Table("schedule_events").
+		Select("type").
+		Where("id = ? AND user_id=?", eventID, userID).
+		First(&r).Error
+	if err != nil {
+		if errors.Is(err, gorm.ErrRecordNotFound) {
+			return "", respond.WrongScheduleEventID // 事件不存在或不属于该用户，统一返回错误
+		}
+		return "", err
+	}
+	if r.Type == nil {
+		return "", respond.WrongScheduleEventID
+	}
+	return *r.Type, nil
+}
+
+func (d *ScheduleDAO) GetScheduleEmbeddedTaskID(ctx context.Context, eventID int) (int, error) {
+	// embedded_task_id 存在于 schedules 表中（按 event_id 聚合取一个非空值）
+	// 若该事件没有任何嵌入任务，则返回 0, nil
+	type row struct {
+		EmbeddedTaskID *int `gorm:"column:embedded_task_id"`
+	}
+
+	var r row
+	err := d.db.WithContext(ctx).
+		Table("schedules").
+		Select("embedded_task_id").
+		Where("event_id = ?", eventID).
+		Where("embedded_task_id IS NOT NULL AND embedded_task_id <> 0").
+		Order("id ASC").
+		Limit(1).
+		Scan(&r).Error
+	if err != nil {
+		return 0, err
+	}
+	if r.EmbeddedTaskID == nil { // 没有任何嵌入任务
+		return 0, nil
+	}
+	return *r.EmbeddedTaskID, nil
+}
+
+func (d *ScheduleDAO) IfScheduleEventIDExists(ctx context.Context, eventID int) (bool, error) {
+	var count int64
+	err := d.db.WithContext(ctx).
+		Table("schedule_events").
+		Where("id = ?", eventID).
+		Count(&count).Error
+	if err != nil {
+		return false, err
+	}
+	return count > 0, nil
+}
+
+func (d *ScheduleDAO) SetScheduleEmbeddedTaskIDToNull(ctx context.Context, eventID int) (int, error) {
+	// 先取出该事件当前嵌入的任务 id（若没有嵌入则返回对应业务错误）
+	embeddedTaskID, err := d.GetScheduleEmbeddedTaskID(ctx, eventID)
+	if err != nil {
+		return 0, err
+	}
+	if embeddedTaskID == 0 {
+		return 0, respond.TargetScheduleNotHaveEmbeddedTask
+	}
+
+	// 将 schedules 表中指定 event_id 的 embedded_task_id 字段置空（用于解除嵌入关系）
+	res := d.db.WithContext(ctx).
+		Table("schedules").
+		Where("event_id = ?", eventID).
+		Where("embedded_task_id IS NOT NULL AND embedded_task_id <> 0").
+		Update("embedded_task_id", nil)
+	if res.Error != nil {
+		return 0, res.Error
+	}
+	if res.RowsAffected == 0 {
+		return 0, respond.TargetScheduleNotHaveEmbeddedTask
+	}
+	return embeddedTaskID, nil
+}
+
+func (d *ScheduleDAO) FindEmbeddedTaskIDAndDeleteIt(ctx context.Context, taskID int) (int, error) {
+	// 1. 先找到 schedules 表中 embedded_task_id = taskID 的记录，获取对应的 event_id。
+	// 1.1 该 taskID 可能是“嵌入课程”的任务块，也可能是“独立任务日程”的任务块；
+	// 1.2 两者撤销策略不同：课程只清 embedded_task_id，独立任务需要删除 schedules 后再删 event。
+	type row struct {
+		EventID *int `gorm:"column:event_id"`
+	}
+	var r row
+	err := d.db.WithContext(ctx).
+		Table("schedules").
+		Select("event_id").
+		Where("embedded_task_id = ?", taskID).
+		Order("id ASC").
+		Limit(1).
+		Scan(&r).Error
+	if err != nil {
+		return 0, err
+	}
+	if r.EventID == nil {
+		return 0, respond.TargetTaskNotEmbeddedInAnySchedule
+	}
+	eventID := *r.EventID
+
+	var event model.ScheduleEvent
+	if err := d.db.WithContext(ctx).
+		Where("id = ?", eventID).
+		First(&event).Error; err != nil {
+		return 0, err
+	}
+
+	if event.Type == "task" && event.RelID != nil && *event.RelID == taskID {
+		// 2. 独立任务日程：schedules.event_id 是外键，必须先删原子槽位再删事件。
+		if err := d.db.WithContext(ctx).
+			Table("schedules").
+			Where("event_id = ?", eventID).
+			Delete(&model.Schedule{}).Error; err != nil {
+			return 0, err
+		}
+		res := d.db.WithContext(ctx).
+			Table("schedule_events").
+			Where("id = ?", eventID).
+			Delete(&model.ScheduleEvent{})
+		if res.Error != nil {
+			return 0, res.Error
+		}
+		if res.RowsAffected == 0 {
+			return 0, respond.TargetTaskNotEmbeddedInAnySchedule
+		}
+		return eventID, nil
+	}
+
+	// 3. 嵌入课程：保留课程事件与课程槽位，只清空 embedded_task_id。
+	clearRes := d.db.WithContext(ctx).
+		Table("schedules").
+		Where("embedded_task_id = ?", taskID).
+		Update("embedded_task_id", nil)
+	if clearRes.Error != nil {
+		return 0, clearRes.Error
+	}
+	if clearRes.RowsAffected == 0 {
+		return 0, respond.TargetTaskNotEmbeddedInAnySchedule
+	}
+	return eventID, nil
+}
+
+func (d *ScheduleDAO) DeleteScheduleEventByTaskItemID(ctx context.Context, taskItemID int) error {
+	// 1. 先找 type=task 且 rel_id=taskItemID 的正式事件；若前一步已经删除则保持幂等成功。
+	var eventIDs []int
+	if err := d.db.WithContext(ctx).
+		Table("schedule_events").
+		Where("type = ? AND rel_id = ?", "task", taskItemID).
+		Pluck("id", &eventIDs).Error; err != nil {
+		return err
+	}
+	if len(eventIDs) == 0 {
+		return nil
+	}
+
+	// 2. schedules.event_id 指向 schedule_events.id，删除顺序必须先子表后父表。
+	if err := d.db.WithContext(ctx).
+		Table("schedules").
+		Where("event_id IN ?", eventIDs).
+		Delete(&model.Schedule{}).Error; err != nil {
+		return err
+	}
+	return d.db.WithContext(ctx).
+		Table("schedule_events").
+		Where("id IN ?", eventIDs).
+		Delete(&model.ScheduleEvent{}).Error
+}
+
+func (d *ScheduleDAO) GetUserRecentCompletedSchedules(ctx context.Context, nowTime time.Time, userID int, index, limit int) ([]model.Schedule, error) {
+	var schedules []model.Schedule
+	err := d.db.WithContext(ctx).
+		Preload("Event").
+		Preload("EmbeddedTask").
+		Joins("JOIN schedule_events ON schedule_events.id = schedules.event_id").
+		// 修改后的核心逻辑：
+		// 1. 用户匹配 & 已结束
+		// 2. 满足 (事件本身是任务) OR (虽然是课程但嵌入了任务)
+		Where("schedules.user_id = ? AND schedule_events.end_time < ? AND (schedule_events.type = ? OR schedules.embedded_task_id IS NOT NULL)",
+							userID, nowTime, "task").
+		Order("schedule_events.end_time DESC"). // 命中索引
+		Offset(index).
+		Limit(limit).
+		Find(&schedules).Error
+	if err != nil {
+		return nil, err
+	}
+	return schedules, nil
+}
+
+func (d *ScheduleDAO) GetScheduleEventWeekByID(ctx context.Context, eventID int) (int, error) {
+	type row struct {
+		Week *int `gorm:"column:week"`
+	}
+	var r row
+	err := d.db.WithContext(ctx).
+		Table("schedules").
+		Select("week").
+		Where("event_id = ?", eventID).
+		Order("id ASC").
+		Limit(1).
+		Scan(&r).Error
+	if err != nil {
+		return 0, err
+	}
+	if r.Week == nil {
+		return 0, respond.WrongScheduleEventID
+	}
+	return *r.Week, nil
+}
+
+func (d *ScheduleDAO) GetUserOngoingSchedule(ctx context.Context, userID int, nowTime time.Time) ([]model.Schedule, error) {
+	var schedules []model.Schedule
+	err := d.db.WithContext(ctx).
+		Preload("Event").
+		Preload("EmbeddedTask").
+		Joins("JOIN schedule_events ON schedule_events.id = schedules.event_id").
+		Where("schedules.user_id = ?  AND schedule_events.start_time <= ? AND schedule_events.end_time >= ?",
+			userID, nowTime, nowTime).
+		Or("schedules.user_id = ?  AND schedule_events.start_time > ?",
+								userID, nowTime).
+		Order("schedule_events.start_time ASC"). // 命中索引
+		Find(&schedules).Error
+	if err != nil {
+		return nil, err
+	}
+	return schedules, nil
+}
+
+func (d *ScheduleDAO) RevocateSchedulesByEventID(ctx context.Context, eventID int) error {
+	// 将 schedules 表中指定 event_id 的 embedded_task_id 字段置空（用于撤销嵌入关系）
+	res := d.db.WithContext(ctx).
+		Table("schedules").
+		Where("event_id = ?", eventID).
+		Update("status", "interrupted")
+	if res.RowsAffected == 0 {
+		return respond.WrongScheduleEventID
+	}
+	return res.Error
+}
+
+func (d *ScheduleDAO) GetRelIDByScheduleEventID(ctx context.Context, eventID int) (int, error) {
+	type row struct {
+		RelID *int `gorm:"column:rel_id"`
+	}
+	var r row
+	err := d.db.WithContext(ctx).
+		Table("schedule_events").
+		Select("rel_id").
+		Where("id = ?", eventID).
+		First(&r).Error
+	if err != nil {
+		if errors.Is(err, gorm.ErrRecordNotFound) {
+			return 0, respond.WrongScheduleEventID
+		}
+		return 0, err
+	}
+	if r.RelID == nil {
+		return 0, nil
+	}
+	return *r.RelID, nil
+}
+
+func (d *ScheduleDAO) GetUserSchedulesByTimeRange(ctx context.Context, userID int, startTime, endTime time.Time) ([]model.Schedule, error) {
+	var schedules []model.Schedule
+	err := d.db.WithContext(ctx).
+		Preload("Event").
+		Preload("EmbeddedTask").
+		Joins("JOIN schedule_events ON schedule_events.id = schedules.event_id").
+		Where("schedules.user_id = ? AND schedule_events.start_time >= ? AND schedule_events.end_time <= ?",
+								userID, startTime, endTime).
+		Order("schedule_events.start_time ASC"). // 命中索引
+		Find(&schedules).Error
+	if err != nil {
+		return nil, err
+	}
+	return schedules, nil
+}
+
+func (d *ScheduleDAO) BatchEmbedTaskIntoSchedule(ctx context.Context, eventIDs, taskItemIDs []int) error {
+	if len(eventIDs) == 0 {
+		return nil
+	}
+	if len(eventIDs) != len(taskItemIDs) {
+		return fmt.Errorf("eventIDs length != taskItemIDs length")
+	}
+
+	db := d.db.WithContext(ctx)
+
+	for i, eventID := range eventIDs {
+		taskItemID := taskItemIDs[i]
+
+		// 1) 校验该 event 是否为 course
+		var typ string
+		if err := db.
+			Table("schedule_events").
+			Select("type").
+			Where("id = ?", eventID).
+			Scan(&typ).Error; err != nil {
+			return err
+		}
+		if typ != "course" {
+			continue
+		}
+
+		// 2) 一 event 对多 schedules：批量写入 embedded_task_id
+		if err := db.
+			Table("schedules").
+			Where("event_id = ?", eventID).
+			Update("embedded_task_id", taskItemID).Error; err != nil {
+			return err
+		}
+	}
+
+	return nil
+}
+
+func (d *ScheduleDAO) InsertScheduleEvents(ctx context.Context, events []model.ScheduleEvent) ([]int, error) {
+	if len(events) == 0 {
+		return nil, nil
+	}
+	if err := d.db.WithContext(ctx).Create(&events).Error; err != nil {
+		return nil, err
+	}
+	ids := make([]int, len(events))
+	for i, e := range events {
+		ids[i] = e.ID
+	}
+	return ids, nil
+}