package model

// GlobalMessageStats 汇总消息统计
type GlobalMessageStats struct {
    Total         int64            `json:"total"`
    Sent          int64            `json:"sent"`
    Received      int64            `json:"received"`
    EarliestUnix  int64            `json:"earliest_unix"`
    LatestUnix    int64            `json:"latest_unix"`
    ByType        map[string]int64 `json:"by_type"` // 例如：{"文本":123, "图片":456}
}

// MonthlyTrend 月度趋势
type MonthlyTrend struct {
    Date     string `json:"date"`     // YYYY-MM
    Sent     int64  `json:"sent"`
    Received int64  `json:"received"`
}