41 lines
1.0 KiB
Go
41 lines
1.0 KiB
Go
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package services
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import (
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"git.solsynth.dev/hypernet/messaging/pkg/internal/database"
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"git.solsynth.dev/hypernet/messaging/pkg/internal/models"
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"github.com/rs/zerolog/log"
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"github.com/samber/lo"
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"gorm.io/gorm"
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)
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var readingAnchorQueue = make(map[uint]uint)
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func SetReadingAnchor(memberId uint, eventId uint) {
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if val, ok := readingAnchorQueue[memberId]; ok {
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readingAnchorQueue[memberId] = max(eventId, val)
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} else {
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readingAnchorQueue[memberId] = eventId
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}
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}
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func FlushReadingAnchor() {
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if len(readingAnchorQueue) == 0 {
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return
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}
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idSet := lo.Uniq(lo.Map(lo.Keys(readingAnchorQueue), func(item uint, _ int) uint {
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return item
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}))
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var pairs []map[string]any
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for k, v := range readingAnchorQueue {
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pairs = append(pairs, map[string]any{
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"id": k,
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"reading_anchor": gorm.Expr("GREATEST(reading_anchor, ?)", v),
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})
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}
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if err := database.C.Model(&models.ChannelMember{}).
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Where("id IN ?", idSet).
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Updates(pairs).Error; err != nil {
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log.Error().Err(err).Msg("An error occurred when flushing reading anchor...")
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}
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}
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