T4.4: Extract history_view.go

Move newHistoryView, historyCellText, logFileName, newEvent, and
collectActivity out of mainwindow.go into src/ui/history_view.go.
Drop the now-unused "sort" import from mainwindow.go.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

src/ui/mainwindow.go

@@ -4,7 +4,6 @@ import (
 	"net/url"
 	"runtime"
 	"runtime/debug"
-	"sort"
 	"strconv"
 	"strings"
 	"time"
@@ -137,144 +136,6 @@ func (l minWidthLayout) Layout(objects []fyne.CanvasObject, size fyne.Size) {
 	}
 }
 
-func newEvent(jobID int, jobName string, state string, detail string) event {
-	// Use the same timestamp shape as command run records so the History tab is
-	// visually consistent across startup, UI actions, manual runs, and schedules.
-	return event{
-		Time:    time.Now().Format("2006-01-02 15:04:05"),
-		JobID:   jobID,
-		JobName: jobName,
-		Trigger: "UI",
-		State:   state,
-		Detail:  detail,
-	}
-}
-
-func collectActivity(jobs []job, runtimes map[int]*domain.JobRuntime) []event {
-	var events []event
-	for _, current := range jobs {
-		// At startup this is usually empty because jobs.yaml does not persist
-		// runtime logs. The function still centralizes the merge for future
-		// history loading from log metadata.
-		if rt := runtimes[current.ID]; rt != nil {
-			events = append(events, rt.Logs...)
-		}
-	}
-	sort.SliceStable(events, func(left int, right int) bool {
-		return events[left].Time < events[right].Time
-	})
-	return events
-}
-
-func newHistoryView(events *[]event) *fyne.Container {
-	descending := false
-	headerText := func(id widget.TableCellID) string {
-		headers := []string{"Time", "Trigger", "Job", "State", "Detail", "Log"}
-		if id.Row < 0 && id.Col == 0 {
-			if descending {
-				return "Time desc"
-			}
-			return "Time asc"
-		}
-		if id.Row < 0 && id.Col >= 0 && id.Col < len(headers) {
-			return headers[id.Col]
-		}
-		return ""
-	}
-	sortedEvents := func() []event {
-		result := append([]event(nil), (*events)...)
-		sort.SliceStable(result, func(left int, right int) bool {
-			if descending {
-				return result[left].Time > result[right].Time
-			}
-			return result[left].Time < result[right].Time
-		})
-		return result
-	}
-
-	table := widget.NewTable(
-		func() (int, int) {
-			return len(*events), 6
-		},
-		func() fyne.CanvasObject {
-			label := widget.NewLabel("")
-			label.Wrapping = fyne.TextTruncate
-			return label
-		},
-		func(id widget.TableCellID, item fyne.CanvasObject) {
-			label := item.(*widget.Label)
-			label.SetText(historyCellText(id, sortedEvents()))
-			label.TextStyle = fyne.TextStyle{}
-			label.Refresh()
-		},
-	)
-	table.ShowHeaderRow = true
-	table.CreateHeader = func() fyne.CanvasObject {
-		label := widget.NewLabel("")
-		label.Wrapping = fyne.TextTruncate
-		return label
-	}
-	table.UpdateHeader = func(id widget.TableCellID, item fyne.CanvasObject) {
-		label := item.(*widget.Label)
-		label.SetText(headerText(id))
-		label.TextStyle = fyne.TextStyle{Bold: true}
-		label.Refresh()
-	}
-	table.OnSelected = func(id widget.TableCellID) {
-		if id.Row < 0 && id.Col == 0 {
-			descending = !descending
-			table.Refresh()
-		}
-		table.Unselect(id)
-	}
-	table.SetColumnWidth(0, 150)
-	table.SetColumnWidth(1, 90)
-	table.SetColumnWidth(2, 170)
-	table.SetColumnWidth(3, 90)
-	table.SetColumnWidth(4, 260)
-	table.SetColumnWidth(5, 240)
-	return container.NewPadded(table)
-}
-
-func historyCellText(id widget.TableCellID, events []event) string {
-	if id.Row < 0 || id.Row >= len(events) {
-		return ""
-	}
-	current := events[id.Row]
-	trigger := current.Trigger
-	if trigger == "" {
-		trigger = "Unknown"
-	}
-	switch id.Col {
-	case 0:
-		return current.Time
-	case 1:
-		return trigger
-	case 2:
-		return current.JobName
-	case 3:
-		return current.State
-	case 4:
-		return current.Detail
-	case 5:
-		return logFileName(current.LogFile)
-	default:
-		return ""
-	}
-}
-
-func logFileName(path string) string {
-	path = strings.TrimSpace(path)
-	if path == "" {
-		return ""
-	}
-	path = strings.ReplaceAll(path, "\\", "/")
-	if slash := strings.LastIndex(path, "/"); slash >= 0 {
-		return path[slash+1:]
-	}
-	return path
-}
-
 func settingsView(w fyne.Window, svc *app.Service) fyne.CanvasObject {
 	store := svc.Store()
 	startOnLogin := widget.NewCheck("Start on login", nil)