package redisconst

import (
	"fmt"
	"strings"
	"time"
	"videoweb/pub/pubdef"
)

const (
	visitLogFmt                   = "bd_visitlog:%s:%d"
	FiveMVisit                    = "bd_visitFmt:%s"
	BloomUser                     = "bd_bloom_user:%d"
	AppUserToken                  = "bd_app_user_token:%d"
	appDeviceUserFmt              = "app:device:user:%s"
	appDeviceUserLockFmt          = "app:device:user:lock:%s"
	AppDeviceUserExpire           = 10 * time.Minute
	AppDeviceUserLockExpire       = 5 * time.Second
	captchaKey                    = "bd_captcha_mobile_%s"
	CaptchaExpire                 = 5 * time.Minute
	replayNonceKey                = "bd_replay:nonce:_%s"
	mediaM3U8Fmt                  = "m3u8cache:%s"
	MediaM3U8CacheExpire          = time.Hour * 24 * 7
	appPlayletHomeCacheFmt        = "app:playlet:home:%d:%s"
	appPlayletHomeCacheKeyFmt     = "app:playlet:home:%d"
	appPlayletHomeCacheVersionFmt = "app:playlet:home:version:%d"
	AppPlayletHomeCacheExpire     = 10 * time.Minute
	AppPlayletForwardHeatExpire   = 3 * time.Second

	//禁止登陆设置
	userForbit = "userForbit:%d"
	ipForbit   = "ipForbit:%s"

	//每分钟Ip注册次数
	registerLimist       = "registerLimit:%s"
	RegisterLimistExpire = time.Minute * 30

	//用户关注限制
	careLimitKey       = "carelimit:%d"
	CareLimitKeyExpire = 15 * time.Second

	//用户评论限制
	commentLimitKey          = "commentlimit:%s"
	CommentLimitKeyExpire    = 5 * time.Second
	CommentDayLimitKeyExpire = 10 * time.Hour

	ContactUsLimitKey          = "contactuslimit:%s"
	ContactusLimitKeyExpire    = 1 * time.Minute
	ContactusLimitKeyDayExpire = 10
	//每用户访问次数限制
	userCallLimit   = "userCall:%d"
	ipCallLimit     = "ipCall:%s"
	CallLimitExpire = time.Second * 10

	userSidKey       = "userSid:%d"
	UserSidKeyExpire = time.Minute * 30

	// 访问 IP 去重统计：每个 appId 每天一个 SET
	ipStatKey    = "ipstat:%d:%s"
	IpStatExpire = 49 * time.Hour

	// m3u8 / enkey 防盗链
	m3u8DayRateLimitIp     = "m3u8dayrate:ip:%s:%s"
	m3u8DayRateLimitUser   = "m3u8dayrate:user:%d:%s"
	m3u8DailyMediaIpFmt    = "m3u8:daily:media:ip:%s:%d:%s"
	m3u8DailyMediaUserFmt  = "m3u8:daily:media:user:%d:%d:%s"
	m3u8UserVipExpireFmt   = "m3u8:user:vipExpire:%d"
	M3U8DayRateLimitMax    = int64(500)  // 非有效会员/未登录：按 IP 日限
	M3U8DayRateLimitVipMax = int64(1000) // 有效会员：按用户日限
	M3U8UserVipExpireCache = 5 * time.Minute
)

func BloomUserKey(userId int64) string {
	return fmt.Sprintf(BloomUser, userId)
}

func FiveMVisitKey(time string) string {
	return fmt.Sprintf(FiveMVisit, time)
}

func UserVisitLogKey(uid int64, t time.Time) string {
	return fmt.Sprintf(visitLogFmt, t.Format("20060102"), uid)
}

func MobileCaptchaKey(mobile string) string {
	return fmt.Sprintf(captchaKey, mobile)
}

func AppUserTokenKey(userId int64) string {
	return fmt.Sprintf(AppUserToken, userId)
}

func MediaM3U8Key(name string) string {
	return fmt.Sprintf(mediaM3U8Fmt, name)
}

func AppPlayletHomeCacheKey() string {
	return fmt.Sprintf(appPlayletHomeCacheKeyFmt, pubdef.AppId)
}

func AppPlayletHomeCacheVersionKey() string {
	return fmt.Sprintf(appPlayletHomeCacheVersionFmt, pubdef.AppId)
}

func AppPlayletHomeCacheDataKey(version string) string {
	return fmt.Sprintf(appPlayletHomeCacheFmt, pubdef.AppId, version)
}

func AppPlayletForwardHeatKey(operator string, playletId int64) string {
	operator = strings.ReplaceAll(operator, ":", "-")
	return fmt.Sprintf("app:playlet:forward:heat:%s:%d", operator, playletId)
}

func UserForbitKey(userId int64) string {
	return fmt.Sprintf(userForbit, userId)
}

func RegisterLimitKey(ip string) string {
	ip = strings.ReplaceAll(ip, ":", "-")
	return fmt.Sprintf(registerLimist, ip)
}

func CareLimitKey(userId int64) string {
	return fmt.Sprintf(careLimitKey, userId)
}
func ReplayNonceKey(nonce string) string {
	return fmt.Sprintf(replayNonceKey, nonce)
}

func CommentLimitKey(ip string) string {
	return fmt.Sprintf(commentLimitKey, ip)
}
func CommentOneDayLimitKey(ip string) string {
	return fmt.Sprintf("commentdaylimit:%s", ip)
}

func UserCallLimitKey(userId int64) string {
	return fmt.Sprintf(userCallLimit, userId)
}

func IpCallLimitKey(ip string) string {
	return fmt.Sprintf(ipCallLimit, ip)
}

func IpForbitKey(ip string) string {
	ip = strings.ReplaceAll(ip, ":", "-")
	return fmt.Sprintf(ipForbit, ip)
}

func UserSidKey(userId int64) string {
	return fmt.Sprintf(userSidKey, userId)
}

func IpStatKey(appId int64, date string) string {
	return fmt.Sprintf(ipStatKey, appId, date)
}

func M3U8DayRateLimitIpKey(ip string) string {
	ip = normalizeM3U8Ip(ip)
	loc, err := time.LoadLocation("Asia/Shanghai")
	if err != nil {
		loc = time.Local
	}
	day := time.Now().In(loc).Format("20060102")
	return fmt.Sprintf(m3u8DayRateLimitIp, ip, day)
}

func M3U8DayRateLimitUserKey(userId int64) string {
	loc, err := time.LoadLocation("Asia/Shanghai")
	if err != nil {
		loc = time.Local
	}
	day := time.Now().In(loc).Format("20060102")
	return fmt.Sprintf(m3u8DayRateLimitUser, userId, day)
}

func M3U8DayRateLimitExpire() time.Duration {
	loc, err := time.LoadLocation("Asia/Shanghai")
	if err != nil {
		loc = time.Local
	}
	now := time.Now().In(loc)
	next := time.Date(now.Year(), now.Month(), now.Day()+1, 0, 0, 0, 0, loc)
	d := next.Sub(now)
	if d < time.Minute {
		return time.Minute
	}
	return d
}

func normalizeM3U8Ip(ip string) string {
	return strings.ReplaceAll(ip, ":", "-")
}

func M3U8DailyMediaIpKey(ip string, mediaId int64) string {
	loc, err := time.LoadLocation("Asia/Shanghai")
	if err != nil {
		loc = time.Local
	}
	day := time.Now().In(loc).Format("20060102")
	return fmt.Sprintf(m3u8DailyMediaIpFmt, normalizeM3U8Ip(ip), mediaId, day)
}

func M3U8DailyMediaUserKey(userId int64, mediaId int64) string {
	loc, err := time.LoadLocation("Asia/Shanghai")
	if err != nil {
		loc = time.Local
	}
	day := time.Now().In(loc).Format("20060102")
	return fmt.Sprintf(m3u8DailyMediaUserFmt, userId, mediaId, day)
}

func M3U8UserVipExpireKey(userId int64) string {
	return fmt.Sprintf(m3u8UserVipExpireFmt, userId)
}

// AppDeviceUserKey 设备ID到用户ID的缓存
func AppDeviceUserKey(devID string) string {
	return fmt.Sprintf(appDeviceUserFmt, devID)
}

// AppDeviceUserLockKey 按设备ID创建用户时的并发锁
func AppDeviceUserLockKey(devID string) string {
	return fmt.Sprintf(appDeviceUserLockFmt, devID)
}