jackyu66gitandCursor
13860bf1ef
每账号仅一条 self（migration 40902）；合盘只选 TA；账号昵称可改；首页穿衣/颜色/养生贴士。 Co-authored-by: Cursor <cursoragent@cursor.com>
94 lines
2.3 KiB
Go
94 lines
2.3 KiB
Go
// Package yijing provides a deterministic hexagram seed from birth + local time.
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// It is a cultural rhythm seed for lifestyle tips — not fortune-telling.
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package yijing
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import (
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"fmt"
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"time"
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)
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// Context is the seed passed to LLM prompts.
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type Context struct {
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GuaIndex int // 1..64
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GuaName string // short label
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Line int // 1..6 changing line hint
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DayPart string // morning|noon|afternoon|evening|night
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NowLocal string
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BirthDate string
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BirthTime string
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}
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var guaNames = []string{
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"乾", "坤", "屯", "蒙", "需", "讼", "师", "比",
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"小畜", "履", "泰", "否", "同人", "大有", "谦", "豫",
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"随", "蛊", "临", "观", "噬嗑", "贲", "剥", "复",
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"无妄", "大畜", "颐", "大过", "坎", "离", "咸", "恒",
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"遁", "大壮", "晋", "明夷", "家人", "睽", "蹇", "解",
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"损", "益", "夬", "姤", "萃", "升", "困", "井",
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"革", "鼎", "震", "艮", "渐", "归妹", "丰", "旅",
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"巽", "兑", "涣", "节", "中孚", "小过", "既济", "未济",
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}
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// Seed builds hexagram context from birth date/time and now (Asia/Shanghai preferred).
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func Seed(birthDate string, birthTime *string, now time.Time) Context {
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loc, err := time.LoadLocation("Asia/Shanghai")
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if err != nil {
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loc = time.FixedZone("CST", 8*3600)
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}
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now = now.In(loc)
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bt := "12:00"
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if birthTime != nil && *birthTime != "" {
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bt = *birthTime
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}
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sum := hash(birthDate) + hash(bt) + hash(now.Format("2006-01-02")) + now.Hour()*17 + now.Minute()/10
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gua := (sum % 64) + 1
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line := (sum/7)%6 + 1
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name := guaNames[gua-1]
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return Context{
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GuaIndex: gua,
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GuaName: name,
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Line: line,
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DayPart: dayPart(now.Hour()),
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NowLocal: now.Format("2006-01-02 15:04"),
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BirthDate: birthDate,
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BirthTime: bt,
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}
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}
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// PromptLine is a compact Chinese summary for the model.
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func (c Context) PromptLine() string {
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return fmt.Sprintf(
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"出生 %s %s；此刻 %s（时段 %s）；卦象种子：%s（第%d卦）· 动爻%d",
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c.BirthDate, c.BirthTime, c.NowLocal, c.DayPart, c.GuaName, c.GuaIndex, c.Line,
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)
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}
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func dayPart(h int) string {
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switch {
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case h < 6:
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return "night"
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case h < 11:
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return "morning"
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case h < 14:
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return "noon"
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case h < 18:
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return "afternoon"
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default:
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return "evening"
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}
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}
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func hash(s string) int {
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n := 0
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for i := 0; i < len(s); i++ {
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n = n*131 + int(s[i])
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}
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if n < 0 {
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n = -n
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}
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return n
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}
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