package relation

import "fmt"

func relationTypePack(t, aName, bName string) (label, body string, bullets []string) {
	switch t {
	case "partner", "恋人", "伴侣":
		return "伴侣",
			fmt.Sprintf("%s与%s更适合把差异写成「亲密说明书」：欲望、节奏与安全感都说清楚。", aName, bName),
			[]string{"每周一次情绪复盘，不谈对错", "亲密请求用「我需要」句式", "边界：疲惫时先暂停再继续"}
	case "family", "家人", "父母", "亲子":
		return "家人",
			fmt.Sprintf("家人关系里，%s与%s容易把旧角色带进新对话。试着把对方当「现在的人」而不是旧剧本。", aName, bName),
			[]string{"少用「你总是」句式", "大事拆成可协商的小请求", "保留各自的私人空间"}
	case "friend", "朋友":
		return "朋友",
			fmt.Sprintf("友情里%s与%s可以更轻松地互补：约会期待与回应频率说开即可。", aName, bName),
			[]string{"约见用明确时间，减少猜测", "忙时用短消息保持连结", "冲突后用玩笑或直接道歉都行，别冷处理太久"}
	default:
		return "", "", nil
	}
}

func starPairNote(a, b string) string {
	if a == b {
		return fmt.Sprintf("同为%s：容易共鸣，也要避免同质盲区。", a)
	}
	return fmt.Sprintf("%s × %s：节奏不同，适合「我负责启动 / 你负责收尾」式分工。", a, b)
}

func str(v any) string {
	s, _ := v.(string)
	return s
}

func strSlice(v any) []string {
	arr, ok := v.([]string)
	if ok {
		return arr
	}
	raw, ok := v.([]any)
	if !ok {
		return nil
	}
	out := make([]string, 0, len(raw))
	for _, x := range raw {
		if s, ok := x.(string); ok {
			out = append(out, s)
		}
	}
	return out
}

func firstNonEmpty(a, b string) string {
	if a != "" {
		return a
	}
	return b
}

func min(a, b int) int {
	if a < b {
		return a
	}
	return b
}