548 lines
22 KiB
Go
548 lines
22 KiB
Go
package postgres
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import (
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"context"
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"fmt"
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"strings"
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"telesrv/internal/domain"
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)
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func (s *ChannelStore) SetChannelMessageReactions(ctx context.Context, req domain.SetChannelMessageReactionsRequest) (domain.ChannelMessageReactionsResult, error) {
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if req.UserID == 0 || req.ChannelID == 0 || req.MessageID <= 0 || req.MessageID > domain.MaxMessageBoxID {
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return domain.ChannelMessageReactionsResult{}, domain.ErrChannelInvalid
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}
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if len(req.Reactions) > domain.MaxChannelMessageReactionsPerUser {
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return domain.ChannelMessageReactionsResult{}, domain.ErrChannelInvalid
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}
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for _, reaction := range req.Reactions {
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if !reaction.Valid() {
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return domain.ChannelMessageReactionsResult{}, domain.ErrChannelInvalid
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}
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}
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req.Reactions = domain.TrimMessageReactionsToUserMax(req.Reactions, req.ReactionsPerUserMax)
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if req.Date <= 0 {
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req.Date = nowUnix()
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}
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beginner, ok := s.db.(txBeginner)
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if !ok {
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return domain.ChannelMessageReactionsResult{}, fmt.Errorf("set channel message reactions: db does not support transactions")
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}
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tx, err := beginner.Begin(ctx)
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if err != nil {
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return domain.ChannelMessageReactionsResult{}, fmt.Errorf("begin set channel message reactions: %w", err)
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}
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committed := false
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defer func() {
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if !committed {
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_ = tx.Rollback(ctx)
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}
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}()
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channel, member, _, err := s.getChannelForViewer(ctx, tx, req.UserID, req.ChannelID)
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if err != nil {
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return domain.ChannelMessageReactionsResult{}, err
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}
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if len(req.Reactions) > 0 {
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selfBoostsApplied := 0
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if channel.Megagroup {
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selfBoostsApplied, err = countActiveUserBoostsForPeer(ctx, tx, req.UserID, domain.Peer{Type: domain.PeerTypeChannel, ID: req.ChannelID}, req.Date)
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if err != nil {
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return domain.ChannelMessageReactionsResult{}, err
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}
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}
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if domain.ChannelBannedRightsBlockReactions(channel, member, selfBoostsApplied) {
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return domain.ChannelMessageReactionsResult{}, domain.ErrChannelWriteForbidden
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}
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}
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msg, err := s.getChannelMessage(ctx, tx, req.ChannelID, req.MessageID)
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if err != nil {
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return domain.ChannelMessageReactionsResult{}, err
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}
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if msg.Deleted || msg.Action != nil || msg.ID <= member.AvailableMinID ||
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!channelMessageVisibleToViewer(channel, member, req.UserID, msg) {
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return domain.ChannelMessageReactionsResult{}, domain.ErrMessageIDInvalid
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}
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// 仅新增/替换受策略约束；空向量是撤销，策略收紧后也必须允许撤销存量 reaction。
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for _, reaction := range req.Reactions {
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if !channel.ReactionPolicy.AllowsReaction(reaction) {
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return domain.ChannelMessageReactionsResult{}, domain.ErrReactionInvalid
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}
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}
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if len(req.Reactions) > 0 {
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// READ COMMITTED 下并发新增不同新种类互不可见、会同时通过去重闸门，
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// 事务级 advisory lock 按 (channel, message) 串行化带闸门的写入（独立于
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// lockUsersForUpdate 的单参数键空间）；撤销不经闸门，无需上锁。
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if _, err := tx.Exec(ctx, `SELECT pg_advisory_xact_lock(hashint8($1::bigint), $2::int)`, req.ChannelID, req.MessageID); err != nil {
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return domain.ChannelMessageReactionsResult{}, fmt.Errorf("advisory lock channel message reactions: %w", err)
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}
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// 官方 REACTIONS_TOO_MANY 只挡「引入消息上尚不存在的新种类」：存量已超限
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//（管理员调低 reactions_limit / 部署前数据）时，重发自己的 reaction 或给
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// 已有种类投票必须放行，否则客户端点击合法 chip 也会收到 400。
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existing := make(map[string]struct{})
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final := make(map[string]struct{})
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rows, err := tx.Query(ctx, `
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SELECT reaction_type, reaction_value, BOOL_OR(reacted_user_id <> $3)
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FROM channel_message_reactions
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WHERE channel_id = $1 AND message_id = $2
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GROUP BY reaction_type, reaction_value`, req.ChannelID, req.MessageID, req.UserID)
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if err != nil {
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return domain.ChannelMessageReactionsResult{}, fmt.Errorf("list channel message reaction values: %w", err)
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}
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for rows.Next() {
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var reactionType, value string
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var byOthers bool
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if err := rows.Scan(&reactionType, &value, &byOthers); err != nil {
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rows.Close()
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return domain.ChannelMessageReactionsResult{}, err
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}
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key := string(reactionType) + "\x00" + value
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existing[key] = struct{}{}
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if byOthers {
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final[key] = struct{}{}
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}
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}
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if err := rows.Err(); err != nil {
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rows.Close()
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return domain.ChannelMessageReactionsResult{}, err
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}
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rows.Close()
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newKind := false
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for _, reaction := range req.Reactions {
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key := reaction.Key()
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if _, ok := existing[key]; !ok {
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newKind = true
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}
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final[key] = struct{}{}
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}
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if newKind && len(final) > channel.ReactionPolicy.UniqueReactionsLimit() {
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return domain.ChannelMessageReactionsResult{}, domain.ErrReactionsTooMany
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}
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}
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if _, err := tx.Exec(ctx, `
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DELETE FROM channel_message_reactions
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WHERE channel_id = $1 AND message_id = $2 AND reacted_user_id = $3`, req.ChannelID, req.MessageID, req.UserID); err != nil {
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return domain.ChannelMessageReactionsResult{}, fmt.Errorf("delete channel message reactions: %w", err)
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}
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// 广播频道 reaction 匿名（官方语义），作者不收 unread 角标，不写 unread 簿记。
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unreadEligible := !channel.Broadcast || channel.Megagroup
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for i, reaction := range req.Reactions {
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if _, err := tx.Exec(ctx, `
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INSERT INTO channel_message_reactions (
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channel_id, message_id, reacted_user_id, sender_user_id, reaction_type, reaction_value,
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big, unread, chosen_order, reaction_date
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) VALUES ($1,$2,$3,$4,$5,$6,$7,$8,$9,$10)`,
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req.ChannelID, req.MessageID, req.UserID, msg.SenderUserID, string(reaction.Type), reaction.Value(), req.Big, unreadEligible && msg.SenderUserID != 0 && msg.SenderUserID != req.UserID, i+1, req.Date); err != nil {
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return domain.ChannelMessageReactionsResult{}, fmt.Errorf("insert channel message reaction: %w", err)
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}
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if req.AddToRecent {
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if _, err := tx.Exec(ctx, `
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INSERT INTO user_recent_reactions (user_id, reaction_type, reaction_value, reaction_date)
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VALUES ($1,$2,$3,$4)
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ON CONFLICT (user_id, reaction_type, reaction_value)
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DO UPDATE SET reaction_date = EXCLUDED.reaction_date, updated_at = now()`,
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req.UserID, string(reaction.Type), reaction.Value(), req.Date); err != nil {
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return domain.ChannelMessageReactionsResult{}, fmt.Errorf("upsert recent message reaction: %w", err)
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}
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}
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if _, err := tx.Exec(ctx, `
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INSERT INTO user_top_reactions (user_id, reaction_type, reaction_value, reaction_count, reaction_date)
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VALUES ($1,$2,$3,1,$4)
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ON CONFLICT (user_id, reaction_type, reaction_value)
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DO UPDATE SET reaction_count = user_top_reactions.reaction_count + 1, reaction_date = EXCLUDED.reaction_date, updated_at = now()`,
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req.UserID, string(reaction.Type), reaction.Value(), req.Date); err != nil {
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return domain.ChannelMessageReactionsResult{}, fmt.Errorf("upsert top message reaction: %w", err)
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}
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}
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if unreadEligible {
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if err := refreshChannelUnreadReactionsCountTx(ctx, tx, msg.SenderUserID, req.ChannelID); err != nil {
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return domain.ChannelMessageReactionsResult{}, err
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}
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}
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if err := tx.Commit(ctx); err != nil {
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return domain.ChannelMessageReactionsResult{}, fmt.Errorf("commit set channel message reactions: %w", err)
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}
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committed = true
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messages := []domain.ChannelMessage{msg}
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if err := s.populateChannelMessagesReactions(ctx, s.db, req.UserID, []domain.Channel{channel}, messages); err != nil {
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return domain.ChannelMessageReactionsResult{}, err
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}
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msg = messages[0]
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reactions := emptyChannelMessageReactions(channel)
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if msg.Reactions != nil {
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reactions = *msg.Reactions
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} else {
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msg.Reactions = &reactions
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}
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// sendReaction 实时推送走在线 viewer scope（rpc 层封顶），不预热全量成员列表。
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return domain.ChannelMessageReactionsResult{
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Channel: channel,
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Message: msg,
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Messages: []domain.ChannelMessage{msg},
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Reactions: reactions,
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Recipients: []int64{req.UserID},
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}, nil
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}
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func (s *ChannelStore) DeleteChannelParticipantReaction(ctx context.Context, req domain.DeleteChannelParticipantReactionRequest) (domain.ChannelMessageReactionsResult, error) {
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if req.UserID == 0 || req.ChannelID == 0 || req.MessageID <= 0 || req.MessageID > domain.MaxMessageBoxID || req.ParticipantUserID == 0 {
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return domain.ChannelMessageReactionsResult{}, domain.ErrChannelInvalid
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}
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beginner, ok := s.db.(txBeginner)
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if !ok {
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return domain.ChannelMessageReactionsResult{}, fmt.Errorf("delete channel participant reaction: db does not support transactions")
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}
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tx, err := beginner.Begin(ctx)
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if err != nil {
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return domain.ChannelMessageReactionsResult{}, fmt.Errorf("begin delete channel participant reaction: %w", err)
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}
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committed := false
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defer func() {
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if !committed {
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_ = tx.Rollback(ctx)
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}
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}()
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channel, member, err := s.getChannelForMember(ctx, tx, req.UserID, req.ChannelID)
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if err != nil {
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return domain.ChannelMessageReactionsResult{}, err
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}
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if !canDeleteAnyChannelMessage(member) {
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return domain.ChannelMessageReactionsResult{}, domain.ErrChannelAdminRequired
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}
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msg, err := s.getChannelMessage(ctx, tx, req.ChannelID, req.MessageID)
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if err != nil {
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return domain.ChannelMessageReactionsResult{}, err
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}
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if msg.Deleted || msg.ID <= member.AvailableMinID {
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return domain.ChannelMessageReactionsResult{}, domain.ErrMessageIDInvalid
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}
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if _, err := tx.Exec(ctx, `
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DELETE FROM channel_message_reactions
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WHERE channel_id = $1 AND message_id = $2 AND reacted_user_id = $3`,
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req.ChannelID, req.MessageID, req.ParticipantUserID); err != nil {
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return domain.ChannelMessageReactionsResult{}, fmt.Errorf("delete participant reaction: %w", err)
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}
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if err := refreshChannelUnreadReactionsCountTx(ctx, tx, msg.SenderUserID, req.ChannelID); err != nil {
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return domain.ChannelMessageReactionsResult{}, err
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}
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if err := tx.Commit(ctx); err != nil {
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return domain.ChannelMessageReactionsResult{}, fmt.Errorf("commit delete participant reaction: %w", err)
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}
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committed = true
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messages := []domain.ChannelMessage{msg}
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if err := s.populateChannelMessagesReactions(ctx, s.db, req.UserID, []domain.Channel{channel}, messages); err != nil {
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return domain.ChannelMessageReactionsResult{}, err
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}
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msg = messages[0]
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reactions := emptyChannelMessageReactions(channel)
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if msg.Reactions != nil {
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reactions = *msg.Reactions
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} else {
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msg.Reactions = &reactions
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}
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recipients, err := s.ListActiveChannelMemberIDs(ctx, req.UserID, req.ChannelID, domain.MaxChannelRealtimeFanout)
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if err != nil {
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recipients = []int64{req.UserID}
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}
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return domain.ChannelMessageReactionsResult{
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Channel: channel,
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Message: msg,
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Messages: []domain.ChannelMessage{msg},
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Reactions: reactions,
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Recipients: recipients,
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}, nil
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}
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func (s *ChannelStore) DeleteChannelParticipantReactions(ctx context.Context, req domain.DeleteChannelParticipantReactionsRequest) (domain.DeleteChannelParticipantReactionsResult, error) {
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if req.UserID == 0 || req.ChannelID == 0 || req.ParticipantUserID == 0 {
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return domain.DeleteChannelParticipantReactionsResult{}, domain.ErrChannelInvalid
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}
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if req.Limit <= 0 || req.Limit > domain.MaxDeleteParticipantReactionsBatch {
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req.Limit = domain.MaxDeleteParticipantReactionsBatch
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}
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beginner, ok := s.db.(txBeginner)
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if !ok {
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return domain.DeleteChannelParticipantReactionsResult{}, fmt.Errorf("delete channel participant reactions: db does not support transactions")
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}
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tx, err := beginner.Begin(ctx)
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if err != nil {
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return domain.DeleteChannelParticipantReactionsResult{}, fmt.Errorf("begin delete channel participant reactions: %w", err)
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}
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committed := false
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defer func() {
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if !committed {
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_ = tx.Rollback(ctx)
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}
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}()
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channel, member, err := s.getChannelForMember(ctx, tx, req.UserID, req.ChannelID)
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if err != nil {
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return domain.DeleteChannelParticipantReactionsResult{}, err
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}
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if !canDeleteAnyChannelMessage(member) {
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return domain.DeleteChannelParticipantReactionsResult{}, domain.ErrChannelAdminRequired
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}
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rows, err := tx.Query(ctx, `
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SELECT message_id, MAX(sender_user_id)
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FROM channel_message_reactions
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WHERE channel_id = $1 AND reacted_user_id = $2
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GROUP BY message_id
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ORDER BY MAX(reaction_date) DESC, message_id DESC
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LIMIT $3`, req.ChannelID, req.ParticipantUserID, req.Limit)
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if err != nil {
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return domain.DeleteChannelParticipantReactionsResult{}, fmt.Errorf("list participant reaction messages: %w", err)
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}
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ids := make([]int, 0, req.Limit)
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owners := make(map[int64]struct{})
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for rows.Next() {
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var msgID int
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var senderUserID int64
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if err := rows.Scan(&msgID, &senderUserID); err != nil {
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rows.Close()
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return domain.DeleteChannelParticipantReactionsResult{}, err
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}
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ids = append(ids, msgID)
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if senderUserID != 0 {
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owners[senderUserID] = struct{}{}
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}
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}
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if err := rows.Err(); err != nil {
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rows.Close()
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return domain.DeleteChannelParticipantReactionsResult{}, err
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}
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rows.Close()
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if len(ids) > 0 {
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if _, err := tx.Exec(ctx, `
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DELETE FROM channel_message_reactions
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WHERE channel_id = $1 AND reacted_user_id = $2 AND message_id = ANY($3::int[])`,
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req.ChannelID, req.ParticipantUserID, int32s(ids)); err != nil {
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return domain.DeleteChannelParticipantReactionsResult{}, fmt.Errorf("delete participant reactions: %w", err)
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}
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for ownerID := range owners {
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if err := refreshChannelUnreadReactionsCountTx(ctx, tx, ownerID, req.ChannelID); err != nil {
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return domain.DeleteChannelParticipantReactionsResult{}, err
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}
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}
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}
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if err := tx.Commit(ctx); err != nil {
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return domain.DeleteChannelParticipantReactionsResult{}, fmt.Errorf("commit delete participant reactions: %w", err)
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}
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committed = true
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messages := []domain.ChannelMessage{}
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if len(ids) > 0 {
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res, err := s.GetChannelMessageReactions(ctx, domain.ChannelMessageReactionsRequest{
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UserID: req.UserID,
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ChannelID: req.ChannelID,
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IDs: ids,
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})
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if err != nil {
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return domain.DeleteChannelParticipantReactionsResult{}, err
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}
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messages = res.Messages
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}
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recipients, err := s.ListActiveChannelMemberIDs(ctx, req.UserID, req.ChannelID, domain.MaxChannelRealtimeFanout)
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if err != nil {
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recipients = []int64{req.UserID}
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}
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return domain.DeleteChannelParticipantReactionsResult{
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Channel: channel,
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Messages: messages,
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Recipients: recipients,
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Deleted: len(ids),
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}, nil
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}
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func (s *ChannelStore) GetChannelMessageReactions(ctx context.Context, req domain.ChannelMessageReactionsRequest) (domain.ChannelMessageReactionsResult, error) {
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if req.UserID == 0 || req.ChannelID == 0 {
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return domain.ChannelMessageReactionsResult{}, domain.ErrChannelInvalid
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}
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if len(req.IDs) > domain.MaxGetMessageIDs {
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return domain.ChannelMessageReactionsResult{}, domain.ErrChannelInvalid
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}
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channel, member, _, err := s.getChannelForViewer(ctx, s.db, req.UserID, req.ChannelID)
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if err != nil {
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return domain.ChannelMessageReactionsResult{}, err
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}
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if len(req.IDs) == 0 {
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return domain.ChannelMessageReactionsResult{Channel: channel}, nil
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}
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id32, _, err := validUniqueChannelMessageIDs(req.IDs)
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if err != nil {
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return domain.ChannelMessageReactionsResult{}, err
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}
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args := []any{req.ChannelID, id32}
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where := "channel_id = $1 AND id = ANY($2::int[]) AND NOT deleted"
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if member.AvailableMinID > 0 {
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args = append(args, member.AvailableMinID)
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where += fmt.Sprintf(" AND id > $%d", len(args))
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}
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if channel.Monoforum && !member.CanManageDirectMessages() {
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args = append(args, string(domain.PeerTypeUser), req.UserID)
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where += fmt.Sprintf(" AND saved_peer_type = $%d AND saved_peer_id = $%d", len(args)-1, len(args))
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}
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rows, err := s.db.Query(ctx, `
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SELECT `+channelMessageColumns+`
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FROM channel_messages
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WHERE `+where+`
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ORDER BY id DESC`, args...)
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if err != nil {
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return domain.ChannelMessageReactionsResult{}, fmt.Errorf("get channel message reactions messages: %w", err)
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}
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defer rows.Close()
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messages := make([]domain.ChannelMessage, 0, len(req.IDs))
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for rows.Next() {
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msg, err := scanChannelMessage(rows)
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if err != nil {
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return domain.ChannelMessageReactionsResult{}, err
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}
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messages = append(messages, msg)
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}
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if err := rows.Err(); err != nil {
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return domain.ChannelMessageReactionsResult{}, err
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}
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if err := s.populateChannelMessagesReactions(ctx, s.db, req.UserID, []domain.Channel{channel}, messages); err != nil {
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return domain.ChannelMessageReactionsResult{}, err
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}
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res := domain.ChannelMessageReactionsResult{Channel: channel, Messages: messages}
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if len(messages) == 1 {
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res.Message = messages[0]
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res.Reactions = emptyChannelMessageReactions(channel)
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if messages[0].Reactions != nil {
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res.Reactions = *messages[0].Reactions
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}
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}
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return res, nil
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}
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func (s *ChannelStore) ListChannelMessageReactions(ctx context.Context, req domain.ChannelMessageReactionsListRequest) (domain.ChannelMessageReactionsList, error) {
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if req.UserID == 0 || req.ChannelID == 0 || req.MessageID <= 0 || req.MessageID > domain.MaxMessageBoxID {
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return domain.ChannelMessageReactionsList{}, domain.ErrChannelInvalid
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}
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if req.Limit <= 0 || req.Limit > domain.MaxChannelMessageReactionListLimit {
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req.Limit = domain.MaxChannelMessageReactionListLimit
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}
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channel, member, _, err := s.getChannelForViewer(ctx, s.db, req.UserID, req.ChannelID)
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if err != nil {
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return domain.ChannelMessageReactionsList{}, err
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}
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if channel.Broadcast && !channel.Megagroup {
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return domain.ChannelMessageReactionsList{}, domain.ErrChannelRightForbidden
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}
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msg, err := s.getChannelMessage(ctx, s.db, req.ChannelID, req.MessageID)
|
||
if err != nil {
|
||
return domain.ChannelMessageReactionsList{}, err
|
||
}
|
||
if msg.Deleted || msg.ID <= member.AvailableMinID ||
|
||
!channelMessageVisibleToViewer(channel, member, req.UserID, msg) {
|
||
return domain.ChannelMessageReactionsList{}, domain.ErrMessageIDInvalid
|
||
}
|
||
baseWhere := []string{"channel_id = $1", "message_id = $2"}
|
||
baseArgs := []any{req.ChannelID, req.MessageID}
|
||
if req.Reaction != nil {
|
||
if !req.Reaction.Valid() {
|
||
return domain.ChannelMessageReactionsList{}, domain.ErrChannelInvalid
|
||
}
|
||
baseArgs = append(baseArgs, string(req.Reaction.Type), req.Reaction.Value())
|
||
baseWhere = append(baseWhere, fmt.Sprintf("reaction_type = $%d AND reaction_value = $%d", len(baseArgs)-1, len(baseArgs)))
|
||
}
|
||
var count int
|
||
if err := s.db.QueryRow(ctx, `SELECT COUNT(*)::int FROM channel_message_reactions WHERE `+strings.Join(baseWhere, " AND "), baseArgs...).Scan(&count); err != nil {
|
||
return domain.ChannelMessageReactionsList{}, fmt.Errorf("count channel message reactions: %w", err)
|
||
}
|
||
where := append([]string(nil), baseWhere...)
|
||
args := append([]any(nil), baseArgs...)
|
||
if req.Offset != "" {
|
||
cursor, ok := parseChannelReactionOffset(req.Offset)
|
||
if !ok {
|
||
return domain.ChannelMessageReactionsList{}, domain.ErrChannelInvalid
|
||
}
|
||
if cursor.legacyValue {
|
||
args = append(args, cursor.date, cursor.userID, cursor.value)
|
||
n := len(args)
|
||
where = append(where, fmt.Sprintf("(reaction_date < $%d OR (reaction_date = $%d AND (reacted_user_id < $%d OR (reacted_user_id = $%d AND reaction_value > $%d))))", n-2, n-2, n-1, n-1, n))
|
||
} else {
|
||
args = append(args, cursor.date, cursor.userID, string(cursor.reactionType), cursor.value)
|
||
n := len(args)
|
||
where = append(where, fmt.Sprintf("(reaction_date < $%d OR (reaction_date = $%d AND (reacted_user_id < $%d OR (reacted_user_id = $%d AND (reaction_type > $%d OR (reaction_type = $%d AND reaction_value > $%d))))))", n-3, n-3, n-2, n-2, n-1, n-1, n))
|
||
}
|
||
}
|
||
args = append(args, req.Limit+1)
|
||
rows, err := s.db.Query(ctx, `
|
||
SELECT channel_id, message_id, reacted_user_id, sender_user_id, reaction_type, reaction_value,
|
||
big, unread, chosen_order, reaction_date
|
||
FROM channel_message_reactions
|
||
WHERE `+strings.Join(where, " AND ")+`
|
||
ORDER BY reaction_date DESC, reacted_user_id DESC, reaction_type ASC, reaction_value ASC
|
||
LIMIT $`+fmt.Sprint(len(args)), args...)
|
||
if err != nil {
|
||
return domain.ChannelMessageReactionsList{}, fmt.Errorf("list channel message reactions: %w", err)
|
||
}
|
||
defer rows.Close()
|
||
reactions := make([]domain.ChannelMessagePeerReaction, 0, req.Limit+1)
|
||
for rows.Next() {
|
||
row, err := scanChannelMessagePeerReaction(rows, req.UserID)
|
||
if err != nil {
|
||
return domain.ChannelMessageReactionsList{}, err
|
||
}
|
||
reactions = append(reactions, row)
|
||
}
|
||
if err := rows.Err(); err != nil {
|
||
return domain.ChannelMessageReactionsList{}, err
|
||
}
|
||
next := ""
|
||
if len(reactions) > req.Limit {
|
||
reactions = reactions[:req.Limit]
|
||
next = channelReactionOffset(reactions[len(reactions)-1])
|
||
}
|
||
return domain.ChannelMessageReactionsList{
|
||
Channel: channel,
|
||
Message: msg,
|
||
Count: count,
|
||
Reactions: reactions,
|
||
NextOffset: next,
|
||
}, nil
|
||
}
|
||
|
||
func (s *ChannelStore) FindChannelMessageReaction(ctx context.Context, req domain.ChannelMessageReactionLookupRequest) (domain.ChannelMessageReactionLookup, bool, error) {
|
||
if req.ViewerUserID == 0 || req.ChannelID == 0 || req.MessageID <= 0 ||
|
||
req.MessageID > domain.MaxMessageBoxID || req.ReactorUserID == 0 {
|
||
return domain.ChannelMessageReactionLookup{}, false, domain.ErrChannelInvalid
|
||
}
|
||
channel, member, _, err := s.getChannelForViewer(ctx, s.db, req.ViewerUserID, req.ChannelID)
|
||
if err != nil {
|
||
return domain.ChannelMessageReactionLookup{}, false, err
|
||
}
|
||
message, err := s.getChannelMessage(ctx, s.db, req.ChannelID, req.MessageID)
|
||
if err != nil {
|
||
return domain.ChannelMessageReactionLookup{}, false, err
|
||
}
|
||
if message.Deleted || message.ID <= member.AvailableMinID ||
|
||
!channelMessageVisibleToViewer(channel, member, req.ViewerUserID, message) {
|
||
return domain.ChannelMessageReactionLookup{}, false, domain.ErrMessageIDInvalid
|
||
}
|
||
rows, err := s.db.Query(ctx, `
|
||
SELECT channel_id, message_id, reacted_user_id, sender_user_id,
|
||
reaction_type, reaction_value, big, unread, chosen_order, reaction_date
|
||
FROM channel_message_reactions
|
||
WHERE channel_id = $1 AND message_id = $2 AND reacted_user_id = $3
|
||
ORDER BY chosen_order, reaction_type, reaction_value
|
||
LIMIT $4`,
|
||
req.ChannelID, req.MessageID, req.ReactorUserID,
|
||
domain.MaxChannelMessageReactionsPerUser)
|
||
if err != nil {
|
||
return domain.ChannelMessageReactionLookup{}, false, fmt.Errorf("find channel message reaction: %w", err)
|
||
}
|
||
defer rows.Close()
|
||
reactions := make([]domain.ChannelMessagePeerReaction, 0, domain.MaxChannelMessageReactionsPerUser)
|
||
for rows.Next() {
|
||
reaction, err := scanChannelMessagePeerReaction(rows, req.ViewerUserID)
|
||
if err != nil {
|
||
return domain.ChannelMessageReactionLookup{}, false, err
|
||
}
|
||
reactions = append(reactions, reaction)
|
||
}
|
||
if err := rows.Err(); err != nil {
|
||
return domain.ChannelMessageReactionLookup{}, false, err
|
||
}
|
||
return domain.ChannelMessageReactionLookup{
|
||
Channel: channel, Message: message, Reactions: reactions,
|
||
}, len(reactions) > 0, nil
|
||
}
|