package placement

import (
	"strings"

	libkg "haixun-backend/internal/library/knowledge"
)

// HasTangentialTopicMismatch uses the shared intent model: broad category overlap
// without product/research-map intent alignment (generalizes beyond hardcoded lists).
func HasTangentialTopicMismatch(text string, ctx PostScanContext) bool {
	text = strings.TrimSpace(text)
	if text == "" {
		return false
	}
	if matchesTopicAnchor(text, ctx) {
		return false
	}
	profile := libkg.BuildIntentProfile(intentProfileInputFromPostScan(ctx))
	return libkg.IsTangentialToIntent(text, profile)
}

func PatrolTagInputFromScanContext(ctx PostScanContext) libkg.PatrolTagInput {
	return intentProfileInputFromPostScan(ctx)
}

func intentProfileInputFromPostScan(ctx PostScanContext) libkg.PatrolTagInput {
	return libkg.PatrolTagInput{
		ProductName:     ctx.ProductName,
		ProductFeatures: ctx.ProductFeatures,
		AudienceSummary: ctx.AudienceSummary,
		TargetAudience:  ctx.TargetAudience,
		MatchTags:       append([]string{}, ctx.MatchTags...),
		Questions:       append([]string{}, ctx.Questions...),
		Pillars:         append([]string{}, ctx.Pillars...),
	}
}

// LocalIntentScore is the offline semantic scorer (no embedding API).
func LocalIntentScore(text string, ctx PostScanContext) int {
	return libkg.ScoreIntentSimilarity(text, libkg.BuildIntentProfile(intentProfileInputFromPostScan(ctx)))
}