fix: fixed configuration validation, to support empty_blocks=0s (#444)

config/config.go

@@ -94,18 +94,22 @@ func (c BlockManagerConfig) Validate() error {
 		return fmt.Errorf("empty_blocks_max_time must be positive or zero to disable")
 	}
 
-	if c.EmptyBlocksMaxTime <= c.BlockTime {
-		return fmt.Errorf("empty_blocks_max_time must be greater than block_time")
-	}
-
 	if c.BatchSubmitMaxTime <= 0 {
 		return fmt.Errorf("batch_submit_max_time must be positive")
 	}
 
-	if c.BatchSubmitMaxTime <= c.EmptyBlocksMaxTime {
+	if c.EmptyBlocksMaxTime != 0 && c.EmptyBlocksMaxTime <= c.BlockTime {
+		return fmt.Errorf("empty_blocks_max_time must be greater than block_time")
+	}
+
+	if c.EmptyBlocksMaxTime != 0 && c.BatchSubmitMaxTime < c.EmptyBlocksMaxTime {
 		return fmt.Errorf("batch_submit_max_time must be greater than empty_blocks_max_time")
 	}
 
+	if c.BatchSubmitMaxTime < c.BlockTime {
+		return fmt.Errorf("batch_submit_max_time must be greater than block_time")
+	}
+
 	if c.BlockBatchSize <= 0 {
 		return fmt.Errorf("block_batch_size must be positive")
 	}

config/toml.go

@@ -69,7 +69,7 @@ aggregator = "{{ .Aggregator }}"
 
 # block production interval
 block_time = "{{ .BlockManagerConfig.BlockTime }}"
-# block time for empty blocks (block time in case of no transactions)
+# block production interval in case of no transactions ("0s" produces empty blocks)
 empty_blocks_max_time = "{{ .BlockManagerConfig.EmptyBlocksMaxTime }}"
 
 # triggers to submit batch to DA and settlement (both required)