- 移除了 sessionManager 结构体和相关方法 - 新增 cacheStore 结构体的 Scan 方法,用于扫描匹配模式的键 - 新增 cacheStore 结构体的 MGet 方法,用于批量获取多个键的值 - 优化了代码结构,提高了缓存操作的灵活性和效率
211 lines
6.5 KiB
Go
211 lines
6.5 KiB
Go
package share
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import (
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"blazing/cool"
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"context"
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"fmt"
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"strconv"
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"strings"
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"time"
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"github.com/gogf/gf/v2/os/gctx"
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"github.com/gogf/gf/v2/util/gconv"
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)
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// newDailyCounterStore 创建每日计数器缓存实例
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func newDailyCounterStore() *cacheStore[int64] {
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return &cacheStore[int64]{
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manager: cool.CacheManager,
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prefix: "blazing:dailycounter:",
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}
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}
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// newCounterLimitStore 创建计数器限制配置缓存实例
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func newCounterLimitStore() *cacheStore[int64] {
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return &cacheStore[int64]{
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manager: cool.CacheManager,
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prefix: "blazing:counterlimit:",
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}
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}
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// counterManager 计数器管理器(每日计数+限制配置+批量查询)
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type counterManager struct {
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dailyCounterStore *cacheStore[int64] // 每日计数器缓存
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counterLimitStore *cacheStore[int64] // 计数器限制配置缓存
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}
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// newCounterManager 创建计数器管理器实例
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func newCounterManager() *counterManager {
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return &counterManager{
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dailyCounterStore: newDailyCounterStore(),
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counterLimitStore: newCounterLimitStore(),
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}
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}
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// genDailyKey 生成单个奖品类型的每日计数键
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// 格式:{userID}:{rewardType}:{date}(userID和rewardType为uint32)
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func (m *counterManager) genDailyKey(userID uint32, rewardType uint32) string {
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date := time.Now().Format("20060102") // 当日日期(YYYYMMDD)
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return fmt.Sprintf("%d:%d:%s", userID, rewardType, date)
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}
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// genUserDailyPrefix 生成用户当日所有计数的键前缀(用于扫描)
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func (m *counterManager) genUserDailyPrefix(userID uint32) string {
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date := time.Now().Format("20060102")
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return fmt.Sprintf("%d:*:%s", userID, date) // 格式:{userID}:*:{date}
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}
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// GetDailyCount 获取用户当日某奖品的计数
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func (m *counterManager) GetDailyCount(userID uint32, rewardType uint32) (int64, error) {
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key := m.genDailyKey(userID, rewardType)
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return m.dailyCounterStore.Get(context.Background(), key)
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}
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// IncrDailyCount 增加用户当日某奖品的计数(自动设置次日0点过期)
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func (m *counterManager) IncrDailyCount(userID uint32, rewardType uint32) (int64, error) {
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key := m.genDailyKey(userID, rewardType)
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// 获取当前计数(不存在则视为0)
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current, err := m.dailyCounterStore.Get(context.Background(), key)
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if err != nil && err != ErrCacheMiss {
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return 0, fmt.Errorf("获取当前计数失败: %w", err)
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}
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if err == ErrCacheMiss {
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current = 0
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}
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// 计算新计数
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newValue := current + 1
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// 计算过期时间:到次日0点(确保当日数据自动重置)
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tomorrow := time.Now().AddDate(0, 0, 1)
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resetTime := time.Date(tomorrow.Year(), tomorrow.Month(), tomorrow.Day(), 0, 0, 0, 0, time.Local)
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ttl := resetTime.Sub(time.Now())
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// 保存新计数并设置过期时间
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if err := m.dailyCounterStore.Set(gctx.New(), key, newValue, ttl); err != nil {
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return 0, fmt.Errorf("保存计数失败: %w", err)
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}
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return newValue, nil
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}
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// ResetDailyCount 重置用户当日某奖品的计数
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func (m *counterManager) ResetDailyCount(userID uint32, rewardType uint32) error {
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key := m.genDailyKey(userID, rewardType)
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return m.dailyCounterStore.Del(gctx.New(), key)
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}
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// SetCounterLimit 设置某奖品类型的每日限制
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func (m *counterManager) SetCounterLimit(rewardType uint32, limit int64) error {
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key := fmt.Sprintf("%d", rewardType) // 限制键直接使用奖品类型(uint32)
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return m.counterLimitStore.Set(gctx.New(), key, limit, time.Hour*24*7) // 限制配置保留7天
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}
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// GetCounterLimit 获取某奖品类型的每日限制
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func (m *counterManager) GetCounterLimit(rewardType uint32) (int64, error) {
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key := fmt.Sprintf("%d", rewardType)
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return m.counterLimitStore.Get(context.Background(), key)
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}
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// IsExceedLimit 检查用户当日某奖品的计数是否超过限制
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func (m *counterManager) IsExceedLimit(userID uint32, rewardType uint32) (bool, error) {
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count, err := m.GetDailyCount(userID, rewardType)
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if err != nil && err != ErrCacheMiss {
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return false, fmt.Errorf("获取计数失败: %w", err)
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}
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// 计数不存在时视为0
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if err == ErrCacheMiss {
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count = 0
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}
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limit, err := m.GetCounterLimit(rewardType)
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if err != nil {
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return false, fmt.Errorf("获取限制失败: %w", err)
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}
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return count >= limit, nil
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}
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// GetUserAllDailyCounts 获取用户当日所有奖品类型的计数
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func (m *counterManager) GetUserAllDailyCounts(userID uint32) (map[uint32]int64, error) {
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// 1. 生成扫描模式(包含缓存前缀,使用*通配符)
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// 格式:blazing:dailycounter:{userID}:*:{今日日期}
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today := time.Now().Format("20060102")
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matchPattern := fmt.Sprintf(
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"%s%d:*:%s",
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m.dailyCounterStore.prefix,
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userID,
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today,
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)
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// 2. 扫描所有匹配的键(通过Scan方法筛选)
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keys, err := m.dailyCounterStore.Scan(context.Background(), matchPattern)
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if err != nil {
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return nil, fmt.Errorf("扫描键失败: %w", err)
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}
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if len(keys) == 0 {
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return make(map[uint32]int64), nil // 无数据时返回空map
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}
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// 3. 提取核心键(去除缓存前缀)
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coreKeys := make([]string, 0, len(keys))
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prefixLen := len(m.dailyCounterStore.prefix)
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for _, fullKey := range keys {
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if strings.HasPrefix(fullKey, m.dailyCounterStore.prefix) {
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coreKey := fullKey[prefixLen:] // 核心键格式:userID:rewardType:date
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coreKeys = append(coreKeys, coreKey)
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}
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}
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// 4. 批量获取计数
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values, err := m.dailyCounterStore.MGet(context.Background(), coreKeys)
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if err != nil {
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return nil, fmt.Errorf("批量获取计数失败: %w", err)
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}
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// 5. 解析结果
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result := make(map[uint32]int64, len(coreKeys))
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for i, coreKey := range coreKeys {
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parts := strings.Split(coreKey, ":")
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if len(parts) != 3 {
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fmt.Printf("[WARN] 忽略格式错误的键: %s\n", coreKey)
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continue
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}
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// 验证用户ID(防止异常键干扰)
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parsedUserID, err := strconv.ParseUint(parts[0], 10, 32)
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if err != nil || uint32(parsedUserID) != userID {
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fmt.Printf("[WARN] 忽略用户不匹配的键: %s\n", coreKey)
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continue
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}
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// 验证日期(确保是今日)
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if parts[2] != today {
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fmt.Printf("[WARN] 忽略过期键: %s(日期不匹配)\n", coreKey)
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continue
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}
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// 解析rewardType
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rewardType, err := strconv.ParseUint(parts[1], 10, 32)
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if err != nil {
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fmt.Printf("[WARN] 解析rewardType失败: %s\n", coreKey)
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continue
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}
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// 解析计数
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val := values[i]
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if val == nil {
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continue
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}
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count := gconv.Int64(val)
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result[uint32(rewardType)] = count
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}
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return result, nil
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}
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// 全局计数器管理器实例(根据实际需求初始化)
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var CounterManager = newCounterManager()
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