sort by time and top

sort.go

package main

import (
	"fmt"
	"sort"
)

type Item struct {
	Top     int
	Value   string
	StartTs int
}

type List []Item

func st(l List) {
	sort.Slice(l, func(i, j int) bool {
		return l[i].StartTs < l[j].StartTs
	})
	sort.Slice(l, func(i, j int) bool {
		if l[i].Top == 1 && l[j].Top == 1 {
			return l[i].StartTs < l[j].StartTs
		}
		return l[i].Top == 1
	})
}

func main() {

	i1 := Item{
		Top:     1,
		Value:   "i1",
		StartTs: 10,
	}

	i2 := Item{
		Top:     1,
		Value:   "i2",
		StartTs: 12,
	}

	i3 := Item{
		Top:     0,
		Value:   "i3",
		StartTs: 9,
	}

	i4 := Item{
		Top:     1,
		Value:   "i4",
		StartTs: 11,
	}
	l := List{i1, i2, i3, i4}

	fmt.Println(l)
	st(l)
	fmt.Println(l)
}