Admin UI: Fetch task logs (#7114)

* show task details

* loading tasks

* task UI works

* generic rendering

* rendering the export link

* removing placementConflicts from task parameters

* remove TaskSourceLocation

* remove "Server ID" column

* rendering balance task source

* sources and targets

* fix ec task generation

* move info

* render timeline

* simplified worker id

* simplify

* read task logs from worker

* isValidTaskID

* address comments

* Update weed/worker/tasks/balance/execution.go

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

* Update weed/worker/tasks/erasure_coding/ec_task.go

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

* Update weed/worker/tasks/task_log_handler.go

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

* fix shard ids

* plan distributing shard id

* rendering planned shards in task details

* remove Conflicts

* worker logs correctly

* pass in dc and rack

* task logging

* Update weed/admin/maintenance/maintenance_queue.go

Co-authored-by: gemini-code-assist[bot] <176961590+gemini-code-assist[bot]@users.noreply.github.com>

* display log details

* logs have fields now

* sort field keys

* fix link

* fix collection filtering

* avoid hard coded ec shard counts

---------

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>
Co-authored-by: gemini-code-assist[bot] <176961590+gemini-code-assist[bot]@users.noreply.github.com>

weed/worker/tasks/task.go

@@ -7,6 +7,7 @@ import (
 	"time"
 
 	"github.com/seaweedfs/seaweedfs/weed/glog"
+	"github.com/seaweedfs/seaweedfs/weed/pb/worker_pb"
 	"github.com/seaweedfs/seaweedfs/weed/worker/types"
 )
 
@@ -21,7 +22,8 @@ type BaseTask struct {
 	estimatedDuration time.Duration
 	logger            TaskLogger
 	loggerConfig      TaskLoggerConfig
-	progressCallback  func(float64) // Callback function for progress updates
+	progressCallback  func(float64, string) // Callback function for progress updates
+	currentStage      string                // Current stage description
 }
 
 // NewBaseTask creates a new base task
@@ -90,20 +92,64 @@ func (t *BaseTask) SetProgress(progress float64) {
 	}
 	oldProgress := t.progress
 	callback := t.progressCallback
+	stage := t.currentStage
 	t.progress = progress
 	t.mutex.Unlock()
 
 	// Log progress change
 	if t.logger != nil && progress != oldProgress {
-		t.logger.LogProgress(progress, fmt.Sprintf("Progress updated from %.1f%% to %.1f%%", oldProgress, progress))
+		message := stage
+		if message == "" {
+			message = fmt.Sprintf("Progress updated from %.1f%% to %.1f%%", oldProgress, progress)
+		}
+		t.logger.LogProgress(progress, message)
 	}
 
 	// Call progress callback if set
 	if callback != nil && progress != oldProgress {
-		callback(progress)
+		callback(progress, stage)
 	}
 }
 
+// SetProgressWithStage sets the current progress with a stage description
+func (t *BaseTask) SetProgressWithStage(progress float64, stage string) {
+	t.mutex.Lock()
+	if progress < 0 {
+		progress = 0
+	}
+	if progress > 100 {
+		progress = 100
+	}
+	callback := t.progressCallback
+	t.progress = progress
+	t.currentStage = stage
+	t.mutex.Unlock()
+
+	// Log progress change
+	if t.logger != nil {
+		t.logger.LogProgress(progress, stage)
+	}
+
+	// Call progress callback if set
+	if callback != nil {
+		callback(progress, stage)
+	}
+}
+
+// SetCurrentStage sets the current stage description
+func (t *BaseTask) SetCurrentStage(stage string) {
+	t.mutex.Lock()
+	defer t.mutex.Unlock()
+	t.currentStage = stage
+}
+
+// GetCurrentStage returns the current stage description
+func (t *BaseTask) GetCurrentStage() string {
+	t.mutex.RLock()
+	defer t.mutex.RUnlock()
+	return t.currentStage
+}
+
 // Cancel cancels the task
 func (t *BaseTask) Cancel() error {
 	t.mutex.Lock()
@@ -170,7 +216,7 @@ func (t *BaseTask) GetEstimatedDuration() time.Duration {
 }
 
 // SetProgressCallback sets the progress callback function
-func (t *BaseTask) SetProgressCallback(callback func(float64)) {
+func (t *BaseTask) SetProgressCallback(callback func(float64, string)) {
 	t.mutex.Lock()
 	defer t.mutex.Unlock()
 	t.progressCallback = callback
@@ -273,7 +319,7 @@ func (t *BaseTask) ExecuteTask(ctx context.Context, params types.TaskParams, exe
 	if t.logger != nil {
 		t.logger.LogWithFields("INFO", "Task execution started", map[string]interface{}{
 			"volume_id":  params.VolumeID,
-			"server":     params.Server,
+			"server":     getServerFromSources(params.TypedParams.Sources),
 			"collection": params.Collection,
 		})
 	}
@@ -362,7 +408,7 @@ func ValidateParams(params types.TaskParams, requiredFields ...string) error {
 				return &ValidationError{Field: field, Message: "volume_id is required"}
 			}
 		case "server":
-			if params.Server == "" {
+			if len(params.TypedParams.Sources) == 0 {
 				return &ValidationError{Field: field, Message: "server is required"}
 			}
 		case "collection":
@@ -383,3 +429,11 @@ type ValidationError struct {
 func (e *ValidationError) Error() string {
 	return e.Field + ": " + e.Message
 }
+
+// getServerFromSources extracts the server address from unified sources
+func getServerFromSources(sources []*worker_pb.TaskSource) string {
+	if len(sources) > 0 {
+		return sources[0].Node
+	}
+	return ""
+}