/
stream.go
109 lines (93 loc) · 3.95 KB
/
stream.go
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package keeper
import (
"fmt"
"sort"
"github.com/gogo/protobuf/proto"
"github.com/dymensionxyz/dymension/v3/x/streamer/types"
sdk "github.com/cosmos/cosmos-sdk/types"
)
// GetStreamByID returns stream from stream ID.
func (k Keeper) GetStreamByID(ctx sdk.Context, streamID uint64) (*types.Stream, error) {
stream := types.Stream{}
store := ctx.KVStore(k.storeKey)
streamKey := streamStoreKey(streamID)
if !store.Has(streamKey) {
return nil, fmt.Errorf("stream with ID %d does not exist", streamID)
}
bz := store.Get(streamKey)
if err := proto.Unmarshal(bz, &stream); err != nil {
return nil, err
}
return &stream, nil
}
// GetStreamFromIDs returns multiple streams from a streamIDs array.
func (k Keeper) GetStreamFromIDs(ctx sdk.Context, streamIDs []uint64) ([]types.Stream, error) {
streams := []types.Stream{}
for _, streamID := range streamIDs {
stream, err := k.GetStreamByID(ctx, streamID)
if err != nil {
return []types.Stream{}, err
}
streams = append(streams, *stream)
}
return streams, nil
}
// GetStreams returns upcoming, active, and finished streams.
func (k Keeper) GetStreams(ctx sdk.Context) []types.Stream {
streams := k.getStreamsFromIterator(ctx, k.StreamsIterator(ctx))
// Assuming streams is your []Stream slice
sort.Slice(streams, func(i, j int) bool {
return streams[i].Id < streams[j].Id
})
return streams
}
// GetNotFinishedStreams returns both upcoming and active streams.
func (k Keeper) GetNotFinishedStreams(ctx sdk.Context) []types.Stream {
return append(k.GetActiveStreams(ctx), k.GetUpcomingStreams(ctx)...)
}
// GetActiveStreams returns active streams.
func (k Keeper) GetActiveStreams(ctx sdk.Context) []types.Stream {
return k.getStreamsFromIterator(ctx, k.ActiveStreamsIterator(ctx))
}
// GetUpcomingStreams returns upcoming streams.
func (k Keeper) GetUpcomingStreams(ctx sdk.Context) []types.Stream {
return k.getStreamsFromIterator(ctx, k.UpcomingStreamsIterator(ctx))
}
// GetFinishedStreams returns finished streams.
func (k Keeper) GetFinishedStreams(ctx sdk.Context) []types.Stream {
return k.getStreamsFromIterator(ctx, k.FinishedStreamsIterator(ctx))
}
// moveUpcomingStreamToActiveStream moves a stream that has reached it's start time from an upcoming to an active status.
func (k Keeper) moveUpcomingStreamToActiveStream(ctx sdk.Context, stream types.Stream) error {
// validation for current time and distribution start time
if ctx.BlockTime().Before(stream.StartTime) {
return fmt.Errorf("stream is not able to start distribution yet: %s >= %s", ctx.BlockTime().String(), stream.StartTime.String())
}
timeKey := getTimeKey(stream.StartTime)
if err := k.deleteStreamRefByKey(ctx, combineKeys(types.KeyPrefixUpcomingStreams, timeKey), stream.Id); err != nil {
return err
}
if err := k.addStreamRefByKey(ctx, combineKeys(types.KeyPrefixActiveStreams, timeKey), stream.Id); err != nil {
return err
}
return nil
}
// moveUpcomingStreamToFinishedStream moves a stream that is still upcoming to a finished status.
func (k Keeper) moveUpcomingStreamToFinishedStream(ctx sdk.Context, stream types.Stream) error {
return k.moveStreamToFinishedStream(ctx, stream, types.KeyPrefixUpcomingStreams)
}
// moveActiveStreamToFinishedStream moves a stream that has completed its distribution from an active to a finished status.
func (k Keeper) moveActiveStreamToFinishedStream(ctx sdk.Context, stream types.Stream) error {
return k.moveStreamToFinishedStream(ctx, stream, types.KeyPrefixActiveStreams)
}
// moveActiveStreamToFinishedStream moves a stream that has completed its distribution from an active to a finished status.
func (k Keeper) moveStreamToFinishedStream(ctx sdk.Context, stream types.Stream, prefixKey []byte) error {
timeKey := getTimeKey(stream.StartTime)
if err := k.deleteStreamRefByKey(ctx, combineKeys(prefixKey, timeKey), stream.Id); err != nil {
return err
}
if err := k.addStreamRefByKey(ctx, combineKeys(types.KeyPrefixFinishedStreams, timeKey), stream.Id); err != nil {
return err
}
return nil
}