处理时间段是否重叠问题

service/peak_valley.go

@@ -115,11 +115,26 @@ func (r *PeakValley) CreatePeakValleyRule(req *form.CreatePeakValleyRuleReq) {
 	var timeBlockIds []uint
 	var timeBlockIdsMap = make(map[string][]uint)
 
+	var timeGroup [][]int
 	for _, item := range req.RuleItem {
 		start, end, blockTotal, err = utils.GetMinutesFromTimeRange(item.StartTime, item.EndTime)
 		if err != nil {
 			return
 		}
+
+		if start > end {
+			err = errors.New("开始时间大于结束时间")
+			return
+		}
+
+		in := []int{start, end}
+		timeGroup = append(timeGroup, in)
+		if utils.HasOverlap(timeGroup) {
+			err = errors.New("选择的时间段与其他时间段有重叠")
+			return
+		}
+
+		// 总时常判断
 		total += blockTotal
 		if total > peak_valley_model.MinutesInADay {
 			err = errors.New("选择的时间段超过一天")
@@ -195,11 +210,25 @@ func (r *PeakValley) UpdatePeakValleyRule(req *form.UpdatePeakValleyRuleReq) {
 	var timeBlockIds []uint
 	var timeBlockIdsMap = make(map[string][]uint)
 
+	var timeGroup [][]int
 	for _, item := range req.RuleItem {
 		start, end, blockTotal, err = utils.GetMinutesFromTimeRange(item.StartTime, item.EndTime)
 		if err != nil {
 			return
 		}
+
+		if start > end {
+			err = errors.New("开始时间大于结束时间")
+			return
+		}
+
+		in := []int{start, end}
+		timeGroup = append(timeGroup, in)
+		if utils.HasOverlap(timeGroup) {
+			err = errors.New("选择的时间段与其他时间段有重叠")
+			return
+		}
+		// 总时常判断
 		total += blockTotal
 		if total > peak_valley_model.MinutesInADay {
 			err = errors.New("选择的时间段超过一天")

utils/utils.go

@@ -187,3 +187,39 @@ func SplitIntoGroups(nums []int) [][]int {
 
 	return groups
 }
+
+// IsInRange 检查一个整数是否在指定的区间内
+func IsInRange(number, lowerBound, upperBound int) bool {
+	return number >= lowerBound && number <= upperBound
+}
+
+// Interval 表示一个区间
+type Interval struct {
+	start int
+	end   int
+}
+
+// ByStart 实现 sort.Interface 接口，用于按区间的开始位置排序
+type ByStart []Interval
+
+func (a ByStart) Len() int           { return len(a) }
+func (a ByStart) Swap(i, j int)      { a[i], a[j] = a[j], a[i] }
+func (a ByStart) Less(i, j int) bool { return a[i].start < a[j].start }
+
+// HasOverlap 检查切片中的所有区间是否有重叠
+func HasOverlap(timeGroup [][]int) bool {
+	// 将切片转换为 Interval 结构体切片
+	var intervals []Interval
+	for _, interval := range timeGroup {
+		intervals = append(intervals, Interval{start: interval[0], end: interval[1]})
+	}
+	// 按照区间的开始位置排序
+	sort.Sort(ByStart(intervals))
+	// 检查相邻区间是否重叠
+	for i := 0; i < len(intervals)-1; i++ {
+		if intervals[i].end > intervals[i+1].start {
+			return true
+		}
+	}
+	return false
+}