refactor: enhance config handling and unify main entrypoint

Unify configuration parsing logic across entrypoints and clean up legacy script-side config paths.

internal/app/etl/extractors/consume.go

@@ -25,6 +25,8 @@ func (ex *GenericExtractor) Consume(
 	chErrorsOut chan<- custom_errors.JobError,
 	wgActivePartitions *sync.WaitGroup,
 	rowsRead *int64,
+	failedPartitionsCount *int32,
+	fromJsonColumns []config.FromJsonItem,
 ) {
 	indexPrimaryKey := slices.IndexFunc(columns, func(col models.ColumnType) bool {
 		return strings.EqualFold(col.Name(), tableInfo.PrimaryKey)
@@ -65,16 +67,18 @@ func (ex *GenericExtractor) Consume(
 				indexPrimaryKey,
 				retryConfig,
 				chBatchesOut,
+				fromJsonColumns,
 			)
 			wgActivePartitions.Done()
 
 			if rowsReadResult > 0 {
 				current := atomic.LoadInt64(rowsRead)
-				logrus.Debugf("Rows read: +%v [current=%v] (%s.%s)", rowsReadResult, current, tableInfo.Schema, tableInfo.Table)
+				logrus.Debugf("Rows read (partition extracted): +%v [current=%v] (%s.%s)", rowsReadResult, current, tableInfo.Schema, tableInfo.Table)
 				atomic.AddInt64(rowsRead, int64(rowsReadResult))
 			}
 
 			if err != nil {
+				atomic.AddInt32(failedPartitionsCount, 1)
 				if jobError, ok := errors.AsType[*custom_errors.JobError](err); ok {
 					select {
 					case <-ctx.Done():
@@ -88,6 +92,16 @@ func (ex *GenericExtractor) Consume(
 					case chErrorsOut <- custom_errors.JobError{ShouldCancelJob: false, Msg: err.Error(), Prev: err}:
 					}
 				}
+
+				currentFPCount := atomic.LoadInt32(failedPartitionsCount)
+				if currentFPCount > int32(retryConfig.MaxFailedPartitions) {
+					select {
+					case <-ctx.Done():
+						return
+					case chErrorsOut <- custom_errors.JobError{ShouldCancelJob: true, Msg: "Max failed partitions reached"}:
+						return
+					}
+				}
 			}
 		}
 	}

internal/app/etl/extractors/process-with-retries.go

@@ -22,6 +22,7 @@ func (ex *GenericExtractor) ProcessPartitionWithRetries(
 	indexPrimaryKey int,
 	retryConfig config.RetryConfig,
 	chBatchesOut chan<- models.Batch,
+	fromJsonColumns []config.FromJsonItem,
 ) (int64, error) {
 	var totalRowsRead int64
 	currentParitition := partition
@@ -35,6 +36,7 @@ func (ex *GenericExtractor) ProcessPartitionWithRetries(
 			currentParitition,
 			indexPrimaryKey,
 			chBatchesOut,
+			fromJsonColumns,
 		)
 		// logrus.Debugf("Partition %v finished processing (%s.%s)", partition.Id, tableInfo.Schema, tableInfo.Table)
 		totalRowsRead += rowsRead
@@ -48,7 +50,7 @@ func (ex *GenericExtractor) ProcessPartitionWithRetries(
 
 			if currentParitition.RetryCounter >= retryConfig.Attempts {
 				return totalRowsRead, &custom_errors.JobError{
-					Msg:  fmt.Sprintf("Partition %v reached max retries", exError.Partition.Id),
+					Msg:  fmt.Sprintf("Partition %v reached max retries (%d)", currentParitition.Id, currentParitition.RetryCounter),
 					Prev: err,
 				}
 			}

internal/app/etl/extractors/process.go

@@ -47,6 +47,7 @@ func (ex *GenericExtractor) ProcessPartition(
 	partition models.Partition,
 	indexPrimaryKey int,
 	chBatchesOut chan<- models.Batch,
+	fromJsonColumns []config.FromJsonItem,
 ) (int64, error) {
 	query := dbwrapper.ExtractionQuery{
 		Schema:     tableInfo.Schema,
@@ -63,6 +64,7 @@ func (ex *GenericExtractor) ProcessPartition(
 			IsInclusive: partition.Range.IsMaxInclusive,
 			Value:       partition.Range.Max,
 		},
+		FromJsonColumns: fromJsonColumns,
 	}
 
 	// logrus.Debugf("Processing partition: %+v (%s.%s)", query, tableInfo.Schema, tableInfo.Table)