62 lines
1.6 KiB
Go
62 lines
1.6 KiB
Go
package database
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import (
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"context"
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"sort"
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"database.orly/indexes/types"
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"encoders.orly/filter"
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"interfaces.orly/store"
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"lol.mleku.dev/chk"
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"lol.mleku.dev/errorf"
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)
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// QueryForIds retrieves a list of IdPkTs based on the provided filter.
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// It supports filtering by ranges and tags but disallows filtering by Ids.
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// Results are sorted by timestamp in reverse chronological order.
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// Returns an error if the filter contains Ids or if any operation fails.
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func (d *D) QueryForIds(c context.Context, f *filter.F) (
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idPkTs []*store.IdPkTs, err error,
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) {
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if f.Ids != nil && f.Ids.Len() > 0 {
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// if there is Ids in the query, this is an error for this query
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err = errorf.E("query for Ids is invalid for a filter with Ids")
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return
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}
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var idxs []Range
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if idxs, err = GetIndexesFromFilter(f); chk.E(err) {
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return
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}
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var results []*store.IdPkTs
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var founds []*types.Uint40
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for _, idx := range idxs {
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if founds, err = d.GetSerialsByRange(idx); chk.E(err) {
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return
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}
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var tmp []*store.IdPkTs
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if tmp, err = d.GetFullIdPubkeyBySerials(founds); chk.E(err) {
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return
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}
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results = append(results, tmp...)
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}
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// deduplicate in case this somehow happened (such as two or more
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// from one tag matched, only need it once)
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seen := make(map[uint64]struct{})
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for _, idpk := range results {
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if _, ok := seen[idpk.Ser]; !ok {
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seen[idpk.Ser] = struct{}{}
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idPkTs = append(idPkTs, idpk)
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}
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}
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// sort results by timestamp in reverse chronological order
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sort.Slice(
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idPkTs, func(i, j int) bool {
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return idPkTs[i].Ts > idPkTs[j].Ts
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},
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)
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if f.Limit != nil && len(idPkTs) > int(*f.Limit) {
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idPkTs = idPkTs[:*f.Limit]
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}
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return
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}
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