feat: 实现前端卡密管理界面
- 卡密列表展示与分页功能 - 单个/批量创建卡密 - 卡密删除与批量删除 - 卡密导出功能 (file-saver) - 启用/禁用状态切换 - 状态判断 (有效/已使用/已失效) - Toast 通知系统 (vue-sonner) - 登录页面错误提示优化 - 后端登录错误消息中文化
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42
backend/internal/models/card_key.go
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42
backend/internal/models/card_key.go
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package models
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import (
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"time"
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)
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// CardKey 卡密表
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type CardKey struct {
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ID int `json:"id"`
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Key string `json:"key"` // 格式: XXXX-XXXX-XXXX-XXXX
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MaxUses int `json:"max_uses"`
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UsedCount int `json:"used_count"`
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ValidityType string `json:"validity_type"` // month/quarter/year/custom
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ExpiresAt time.Time `json:"expires_at"`
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IsActive bool `json:"is_active"`
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CreatedByID int `json:"created_by_id"`
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CreatedAt time.Time `json:"created_at"`
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}
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// TableName 返回表名
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func (CardKey) TableName() string {
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return "card_keys"
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}
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// IsExpired 检查卡密是否过期
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func (c *CardKey) IsExpired() bool {
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return time.Now().After(c.ExpiresAt)
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}
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// IsUsable 检查卡密是否可用
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func (c *CardKey) IsUsable() bool {
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return c.IsActive && !c.IsExpired() && c.UsedCount < c.MaxUses
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}
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// RemainingUses 返回剩余使用次数
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func (c *CardKey) RemainingUses() int {
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remaining := c.MaxUses - c.UsedCount
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if remaining < 0 {
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return 0
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}
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return remaining
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}
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