fix(manager): fixed getting proposer to get for next height and not c…

…urrent one (#1202)

block/manager.go

@@ -210,7 +210,7 @@ func (m *Manager) Start(ctx context.Context) error {
 	// In case there is also no proposer on the hub to our current height, it means that the chain is halted.
 	if m.State.GetProposer() == nil {
 		m.logger.Info("No proposer on the rollapp, fallback to the hub proposer, if available")
-		SLProposer, err := m.SLClient.GetProposerAtHeight(int64(m.State.Height()))
+		SLProposer, err := m.SLClient.GetProposerAtHeight(int64(m.State.NextHeight()))
 		if err != nil {
 			return fmt.Errorf("get proposer at height: %w", err)
 		}

settlement/dymension/dymension.go

@@ -30,8 +30,8 @@ import (
 )
 
 const (
-	addressPrefix        = "dym"
-	UNAVAILABLE_PROPOSER = ""
+	addressPrefix     = "dym"
+	SENTINEL_PROPOSER = ""
 )
 
 const (
@@ -346,8 +346,8 @@ func (c *Client) GetProposerAtHeight(height int64) (*types.Sequencer, error) {
 		}
 	}
 
-	if proposerAddr == "" {
-		return nil, fmt.Errorf("proposer address is empty")
+	if proposerAddr == SENTINEL_PROPOSER {
+		return nil, fmt.Errorf("proposer is sentinel")
 	}
 
 	// Find and return the matching sequencer
@@ -538,7 +538,7 @@ func (c *Client) GetNextProposer() (*types.Sequencer, error) {
 	if !found {
 		return nil, nil
 	}
-	if nextAddr == UNAVAILABLE_PROPOSER {
+	if nextAddr == SENTINEL_PROPOSER {
 		return &types.Sequencer{}, nil
 	}