99 lines
3.0 KiB
Go
99 lines
3.0 KiB
Go
package agents
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import (
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"context"
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"fmt"
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"strings"
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"time"
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)
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type TimeTool struct{}
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func init() {
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Register(TimeTool{})
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}
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func (TimeTool) Name() string {
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return "time"
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}
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func (TimeTool) Enabled(config ToolConfig) bool {
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return config.Enabled
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}
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func (TimeTool) ShouldUse(messages []ChatMessage) bool {
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content := strings.ToLower(LastUserContent(messages))
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keywords := []string{
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"时间", "日期", "今天", "昨天", "明天", "本周", "这周", "上周", "下周", "本月", "这个月", "上月", "下月", "今年", "去年", "明年",
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"time", "date", "today", "yesterday", "tomorrow", "week", "month", "year", "now",
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}
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for _, keyword := range keywords {
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if strings.Contains(content, keyword) {
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return true
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}
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}
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return false
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}
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func (TimeTool) Enrich(ctx context.Context, messages []ChatMessage, config ToolConfig, trace TraceFunc) ([]ChatMessage, error) {
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select {
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case <-ctx.Done():
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return messages, ctx.Err()
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default:
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}
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now := time.Now()
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content := buildTimeContext(now)
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if trace != nil {
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trace("time", "execute", "success", "已获取当前时间上下文", map[string]interface{}{
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"now": now.Format("2006-01-02 15:04:05"),
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"today": now.Format("2006-01-02"),
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})
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}
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enriched := append([]ChatMessage{}, messages...)
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enriched = append(enriched, SystemMessage(content))
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return enriched, nil
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}
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func buildTimeContext(now time.Time) string {
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todayStart := dateStart(now)
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weekStart := todayStart.AddDate(0, 0, -int((int(todayStart.Weekday())+6)%7))
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monthStart := time.Date(now.Year(), now.Month(), 1, 0, 0, 0, 0, now.Location())
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yearStart := time.Date(now.Year(), 1, 1, 0, 0, 0, 0, now.Location())
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return fmt.Sprintf(`以下是当前时间上下文，请在回答涉及相对日期/时间的问题时使用：
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- 当前时间：%s
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- 今天：%s，范围 %s 至 %s
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- 昨天：%s
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- 明天：%s
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- 本周：%s 至 %s
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- 本月：%s 至 %s
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- 今年：%s 至 %s`,
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formatDateTimeWithWeek(now, "2006-01-02 15:04:05 MST"),
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formatDateWithWeek(todayStart), formatDateTimeWithWeek(todayStart, "2006-01-02 15:04:05"), formatDateTimeWithWeek(todayStart.AddDate(0, 0, 1).Add(-time.Second), "2006-01-02 15:04:05"),
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formatDateWithWeek(todayStart.AddDate(0, 0, -1)),
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formatDateWithWeek(todayStart.AddDate(0, 0, 1)),
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formatDateWithWeek(weekStart), formatDateWithWeek(weekStart.AddDate(0, 0, 7).Add(-time.Second)),
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formatDateWithWeek(monthStart), formatDateWithWeek(monthStart.AddDate(0, 1, 0).Add(-time.Second)),
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formatDateWithWeek(yearStart), formatDateWithWeek(yearStart.AddDate(1, 0, 0).Add(-time.Second)),
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)
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}
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func formatDateWithWeek(t time.Time) string {
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return formatDateTimeWithWeek(t, "2006-01-02")
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}
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func formatDateTimeWithWeek(t time.Time, layout string) string {
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return fmt.Sprintf("%s（%s）", t.Format(layout), weekdayName(t.Weekday()))
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}
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func weekdayName(weekday time.Weekday) string {
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names := []string{"星期日", "星期一", "星期二", "星期三", "星期四", "星期五", "星期六"}
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return names[weekday]
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}
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func dateStart(t time.Time) time.Time {
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return time.Date(t.Year(), t.Month(), t.Day(), 0, 0, 0, 0, t.Location())
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}
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