Add ticket time tracking with reports and entry management.

Support start/stop timer, manual durations, grouped reports, and per-ticket edit/delete of time entries with undo.

Co-authored-by: Cursor <cursoragent@cursor.com>

internal/ui/views/report.go

@@ -0,0 +1,153 @@
+package views
+
+import (
+	"fmt"
+	"strings"
+	"time"
+
+	"github.com/charmbracelet/lipgloss"
+
+	"task/internal/ticket"
+)
+
+// ReportStyles holds styles for the report dialog.
+type ReportStyles struct {
+	Title    lipgloss.Style
+	Group    lipgloss.Style
+	Duration lipgloss.Style
+	Total    lipgloss.Style
+	Hint     lipgloss.Style
+	Selected lipgloss.Style
+}
+
+// ReportView renders aggregated time entries.
+type ReportView struct {
+	Rows    []ticket.GroupRow
+	Total   time.Duration
+	GroupBy ticket.GroupBy
+	Offset  int
+	Cursor  int
+	Width   int
+	Height  int
+	Styles  ReportStyles
+}
+
+// NewReportView builds a report view from aggregated rows.
+func NewReportView(rows []ticket.GroupRow, total time.Duration, groupBy ticket.GroupBy, width, height int, styles ReportStyles) ReportView {
+	return ReportView{
+		Rows:    rows,
+		Total:   total,
+		GroupBy: groupBy,
+		Width:   width,
+		Height:  height,
+		Styles:  styles,
+	}
+}
+
+// SetSize updates viewport size.
+func (r *ReportView) SetSize(width, height int) {
+	r.Width = width
+	r.Height = height
+	r.ensureVisible()
+}
+
+// MoveDown moves selection down.
+func (r *ReportView) MoveDown() {
+	if r.Cursor < len(r.Rows)-1 {
+		r.Cursor++
+		r.ensureVisible()
+	}
+}
+
+// MoveUp moves selection up.
+func (r *ReportView) MoveUp() {
+	if r.Cursor > 0 {
+		r.Cursor--
+		r.ensureVisible()
+	}
+}
+
+// View renders the report.
+func (r ReportView) View() string {
+	title := r.Styles.Title.Render(fmt.Sprintf("Time report · by %s", r.GroupBy.Label()))
+	hint := r.Styles.Hint.Render("g group · j/k scroll · esc back")
+
+	innerW := max(20, r.Width-2)
+	var lines []string
+	lines = append(lines, title, "")
+
+	visibleH := r.Height - 4 // title, blank, total, hint
+	if visibleH < 1 {
+		visibleH = 1
+	}
+
+	if len(r.Rows) == 0 {
+		lines = append(lines, r.Styles.Hint.Render("No time entries yet"))
+	} else {
+		end := r.Offset + visibleH
+		if end > len(r.Rows) {
+			end = len(r.Rows)
+		}
+		for i := r.Offset; i < end; i++ {
+			row := r.Rows[i]
+			label := truncateOneLine(row.Label, max(8, innerW-14))
+			dur := ticket.FormatDurationHuman(row.Duration)
+			dots := dotsPad(label, dur, innerW)
+			line := label + dots + dur
+			if i == r.Cursor {
+				line = r.Styles.Selected.Render(line)
+			} else {
+				line = r.Styles.Group.Render(label) + dots + r.Styles.Duration.Render(dur)
+			}
+			lines = append(lines, line)
+		}
+	}
+
+	for len(lines) < visibleH+2 {
+		lines = append(lines, "")
+	}
+
+	totalLabel := "Total"
+	totalDur := ticket.FormatDurationHuman(r.Total)
+	totalLine := totalLabel + dotsPad(totalLabel, totalDur, innerW) + totalDur
+	lines = append(lines, r.Styles.Total.Render(totalLine), hint)
+
+	body := strings.Join(lines, "\n")
+	return lipgloss.NewStyle().Width(r.Width).Height(r.Height).Render(body)
+}
+
+func dotsPad(left, right string, width int) string {
+	used := lipgloss.Width(left) + lipgloss.Width(right)
+	n := width - used
+	if n < 2 {
+		return " "
+	}
+	return " " + strings.Repeat("·", n-2) + " "
+}
+
+func (r *ReportView) ensureVisible() {
+	if len(r.Rows) == 0 {
+		r.Offset = 0
+		r.Cursor = 0
+		return
+	}
+	if r.Cursor < 0 {
+		r.Cursor = 0
+	}
+	if r.Cursor >= len(r.Rows) {
+		r.Cursor = len(r.Rows) - 1
+	}
+	visibleH := r.Height - 4
+	if visibleH < 1 {
+		visibleH = 1
+	}
+	if r.Cursor < r.Offset {
+		r.Offset = r.Cursor
+	}
+	if r.Cursor >= r.Offset+visibleH {
+		r.Offset = r.Cursor - visibleH + 1
+	}
+	if r.Offset < 0 {
+		r.Offset = 0
+	}
+}