package scoring

// completenessScore 层次完整度（20 分制）：上衣+5 下装+5 鞋+5 配饰+5
func completenessScore(o CandidateOutfit) int {
	score := 0
	for _, it := range o.Items {
		switch it.Category {
		case "上衣":
			score += 5
		case "下装":
			score += 5
		case "鞋":
			score += 5
		case "配饰":
			score += 5
		}
	}
	if o.HasOuterwear {
		score += 2
	}
	if score > 20 {
		return 20
	}
	return score
}

// styleScore 风格一致性（10 分制）：命中用户偏好标签每项 +2
func styleScore(o CandidateOutfit, ctx ScoreContext) int {
	if len(ctx.StyleTags) == 0 {
		return 5
	}
	score := 0
	for _, it := range o.Items {
		for _, tag := range ctx.StyleTags {
			if tag != "" && it.StyleTags != "" && containsTag(it.StyleTags, tag) {
				score += 2
			}
		}
	}
	if score > 10 {
		return 10
	}
	return score
}

func containsTag(tags, tag string) bool {
	for _, t := range splitTags(tags) {
		if t == tag {
			return true
		}
	}
	return false
}

func splitTags(s string) []string {
	var out []string
	cur := ""
	for _, c := range s {
		if c == ',' || c == '，' || c == ' ' {
			if cur != "" {
				out = append(out, cur)
				cur = ""
			}
			continue
		}
		cur += string(c)
	}
	if cur != "" {
		out = append(out, cur)
	}
	return out
}