1 files changed, 46 insertions, 0 deletions
diff --git a/internal/storage/store.go b/internal/storage/store.go
new file mode 100644
index 0000000..59055b7
--- /dev/null
+++ b/internal/storage/store.go
@@ -0,0 +1,46 @@
+package storage
+
+import "github.com/Fuwn/plutia/internal/types"
+
+type BlockHashEntry struct {
+	BlockID uint64
+	Hash    string
+}
+
+type OperationMutation struct {
+	State types.StateV1
+	Ref   *types.BlockRefV1
+}
+
+type Store interface {
+	Close() error
+
+	GetMode() (string, error)
+	SetMode(mode string) error
+
+	GetGlobalSeq() (uint64, error)
+	SetGlobalSeq(seq uint64) error
+
+	PutState(state types.StateV1) error
+	GetState(did string) (types.StateV1, bool, error)
+	ListStates() ([]types.StateV1, error)
+	ForEachState(fn func(types.StateV1) error) error
+	ApplyOperationsBatch(ops []OperationMutation, blockHashes []BlockHashEntry) error
+
+	SetChainHead(did string, seq uint64) error
+	GetChainHead(did string) (uint64, bool, error)
+	AddDIDSequence(did string, seq uint64) error
+	ListDIDSequences(did string) ([]uint64, error)
+
+	PutOpSeqRef(seq uint64, ref types.BlockRefV1) error
+	GetOpSeqRef(seq uint64) (types.BlockRefV1, bool, error)
+
+	PutBlockHash(blockID uint64, hash string) error
+	GetBlockHash(blockID uint64) (string, bool, error)
+	ListBlockHashes() ([]string, error)
+	ListBlockHashEntries() ([]BlockHashEntry, error)
+
+	PutCheckpoint(cp types.CheckpointV1) error
+	GetCheckpoint(sequence uint64) (types.CheckpointV1, bool, error)
+	GetLatestCheckpoint() (types.CheckpointV1, bool, error)
+}