75 lines
1.5 KiB
Go
75 lines
1.5 KiB
Go
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package viral
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import (
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"strings"
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"haixun-backend/internal/library/placement"
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)
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const (
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MinEngagementScore = 24
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MinLikeCount = 8
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HotEngagementScore = 80
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)
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// ScorePost ranks viral imitation candidates by engagement signals.
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func ScorePost(likes, replies int) int {
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if likes < 0 {
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likes = 0
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}
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if replies < 0 {
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replies = 0
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}
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score := likes*2 + replies*3
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if likes >= 20 && replies >= 3 {
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score += 15
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}
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if replies > 0 && likes > 0 && replies*3 >= likes {
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score += 10
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}
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if score > 100 {
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return 100
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}
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return score
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}
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func PriorityLabel(score int) string {
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if score >= HotEngagementScore {
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return "hot"
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}
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if score >= MinEngagementScore {
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return "warm"
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}
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return "cold"
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}
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func PassesViralCandidate(text string, likes, replies, engagementScore int, exclusions []string) bool {
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if strings.TrimSpace(text) == "" {
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return false
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}
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if placement.MatchesExclusion(text, exclusions) {
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return false
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}
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if placement.LooksLikeCasualChat(text) && !hasViralSignal(text) {
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return false
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}
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if likes < MinLikeCount && engagementScore < MinEngagementScore {
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return false
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}
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if engagementScore < MinEngagementScore {
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return false
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}
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return true
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}
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func hasViralSignal(text string) bool {
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text = strings.ToLower(text)
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signals := []string{"分享", "推薦", "心得", "技巧", "方法", "語錄", "故事", "怎麼", "為什麼", "必看"}
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for _, s := range signals {
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if strings.Contains(text, s) {
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return true
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}
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}
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return len([]rune(text)) >= 40
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}
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