add PrevMsgQueueHash in chunk task detail

Author: colinlyguo

common/types/message/message.go

@@ -41,7 +41,8 @@ const (
 
 // ChunkTaskDetail is a type containing ChunkTask detail.
 type ChunkTaskDetail struct {
-	BlockHashes []common.Hash `json:"block_hashes"`
+	BlockHashes      []common.Hash `json:"block_hashes"`
+	PrevMsgQueueHash common.Hash   `json:"prev_msg_queue_hash"`
 }
 
 // BatchTaskDetail is a type containing BatchTask detail.

coordinator/internal/logic/provertask/chunk_prover_task.go

@@ -10,6 +10,7 @@ import (
 	"github.com/prometheus/client_golang/prometheus"
 	"github.com/prometheus/client_golang/prometheus/promauto"
 	"github.com/scroll-tech/da-codec/encoding"
+	"github.com/scroll-tech/go-ethereum/common"
 	"github.com/scroll-tech/go-ethereum/log"
 	"github.com/scroll-tech/go-ethereum/params"
 	"gorm.io/gorm"
@@ -168,7 +169,7 @@ func (cp *ChunkProverTask) Assign(ctx *gin.Context, getTaskParameter *coordinato
 		return nil, ErrCoordinatorInternalFailure
 	}
 
-	taskMsg, err := cp.formatProverTask(ctx.Copy(), &proverTask, hardForkName)
+	taskMsg, err := cp.formatProverTask(ctx.Copy(), &proverTask, chunkTask, hardForkName)
 	if err != nil {
 		cp.recoverActiveAttempts(ctx, chunkTask)
 		log.Error("format prover task failure", "task_id", chunkTask.Hash, "err", err)
@@ -194,15 +195,16 @@ func (cp *ChunkProverTask) hardForkName(ctx *gin.Context, chunkTask *orm.Chunk)
 	return hardForkName, nil
 }
 
-func (cp *ChunkProverTask) formatProverTask(ctx context.Context, task *orm.ProverTask, hardForkName string) (*coordinatorType.GetTaskSchema, error) {
+func (cp *ChunkProverTask) formatProverTask(ctx context.Context, task *orm.ProverTask, chunk *orm.Chunk, hardForkName string) (*coordinatorType.GetTaskSchema, error) {
 	// Get block hashes.
 	blockHashes, dbErr := cp.blockOrm.GetL2BlockHashesByChunkHash(ctx, task.TaskID)
 	if dbErr != nil || len(blockHashes) == 0 {
 		return nil, fmt.Errorf("failed to fetch block hashes of a chunk, chunk hash:%s err:%w", task.TaskID, dbErr)
 	}
 
 	taskDetail := message.ChunkTaskDetail{
-		BlockHashes: blockHashes,
+		BlockHashes:      blockHashes,
+		PrevMsgQueueHash: common.HexToHash(chunk.PrevL1MessageQueueHash),
 	}
 	blockHashesBytes, err := json.Marshal(taskDetail)
 	if err != nil {