package blink

import "strings"

const (
	route         = "c" //H5活动路由关键字
	downloadRoute = "d" //H5活动下载页路由关键字
	webRoute      = "p" //H5站外活动路由关键字

	// query关键字

	campaignHashIdKey       = "l"       //H5活动hash_id关键字
	campaignCmarkKey        = "c"       //H5活动渠道id关键字
	campaignCmarkWithWebKey = "cw"      //H5活动渠道站外渠道
	subUserIdParamKey       = "u"       //H5活动第三方用户id分享关键字
	projectSceneKey         = "s"       //项目应用场景值
	campaignDynamicKey      = "dy"      //动态下载链接关键字
	campaignContentLinkKey  = "ct"      //下载页内容链接关键字
	langParamKey            = "lg"      //语言关键字
	levelParamKey           = "lv"      //用户等级关键字
	viewerParamKey          = "vt"      //预览用户关键字
	campaignUserIdKey       = "user_id" //活动用户id关键字
	adsJumpChannel          = "channel" //广告策略id关键字
	centerHashIdKey         = "t"       //任务中心hash_id关键字
	centerModuleIdKey       = "tm"      //任务中心模块id关键字
	gameLinkIdKey           = "tlgid"   //游戏id关键字
	gameProjectIdKey        = "tlpid"   //项目id关键字
)

type link struct {
	host   string //域名
	hashId string //活动hashId
	cmark  string //渠道标识
}

// GetUrlCampaignHashId 获取url中的活动hashid
func GetUrlCampaignHashId(url string) string {
	_, query, found := strings.Cut(url, "?")
	if !found || query == "" {
		return ""
	}

	paramsArr := strings.Split(query, "&")
	for _, v := range paramsArr {
		key, val, ok := strings.Cut(v, "=")
		if !ok {
			continue
		}

		if key == campaignHashIdKey {
			return val
		}
	}

	return ""
}