add shims for backups

app/backups.go

@@ -0,0 +1,121 @@
+package app
+
+import (
+	"io/fs"
+	"os"
+	"strconv"
+	"time"
+
+	"git.sr.ht/~rockorager/vaxis"
+	"git.tilde.town/nbsp/neofeels/ttbp"
+	"git.tilde.town/nbsp/neofeels/ui"
+	"github.com/dustin/go-humanize"
+)
+
+type Backups struct {
+	title       string
+	list        ui.List
+	help        string
+	description string
+	backups     []fs.DirEntry
+}
+
+func NewBackups() *Backups {
+	os.MkdirAll(ttbp.PathUserBackups, 0700)
+	backups, _ := os.ReadDir(ttbp.PathUserBackups)
+	list := []string{}
+	for _, backup := range backups {
+		timestamp, err := time.Parse("feels-backup-20060102-150405.tar.gz", backup.Name())
+		if err != nil {
+			continue
+		}
+		list = append(list, humanize.Time(timestamp.Local()))
+	}
+
+	return &Backups{
+		title,
+		ui.NewList(list),
+		"↑↓/kj move  ↵ enter  q return",
+		"choose a backup to restore",
+		backups,
+	}
+}
+
+func (backups *Backups) Event(state *ui.State, event vaxis.Event) (processed bool) {
+	if key, ok := event.(vaxis.Key); ok && key.EventType == vaxis.EventPress {
+		switch key.String() {
+		case "Ctrl+c", "Ctrl+d":
+			close(ui.Quit)
+		case "Down", "j", "Ctrl+n":
+			backups.list.Down()
+		case "Up", "k", "Ctrl+p":
+			backups.list.Up()
+		case "End", "Shift+g":
+			backups.list.End()
+		case "Home", "g":
+			backups.list.Home()
+		case "0", "1", "2", "3", "4", "5", "6", "7", "8", "9":
+			i, _ := strconv.Atoi(key.String())
+			backups.list.SetIndex(i)
+		case "q", "h", "Left":
+			ui.ViewChange <- NewManagement()
+		case "Enter", "l", "Right":
+			if len(backups.list.Items()) > 0 {
+				backups.LoadBackup(state)
+			}
+		}
+		processed = true
+	}
+	backups.Draw(state)
+	return
+}
+
+func (backups *Backups) Draw(state *ui.State) {
+	win := state.Window()
+	win.New(win.Width/2-10, win.Height/2-8, 20, 5).Print(vaxis.Segment{Text: backups.title})
+	win.New(win.Width/2-13, win.Height/2-2, 26, 1).Print(vaxis.Segment{Text: backups.description})
+	backups.list.Draw(vaxis.Window{
+		Vx:     win.Vx,
+		Parent: nil,
+		Column: win.Width/2 - 14,
+		Row:    win.Height / 2,
+		Width:  28,
+		Height: 10,
+	})
+	if len(backups.list.Items()) == 0 {
+		win.New(win.Width/2-8, win.Height/2+1, 16, 1).Print(vaxis.Segment{Text: "no backups found"})
+	}
+	win.New(win.Width/2-14, win.Height/2+11, 28, 1).Print(vaxis.Segment{Text: backups.help})
+}
+
+func (backups *Backups) LoadBackup(state *ui.State) {
+	backups.Draw(state)
+	win := state.Window()
+	win.New(win.Width/2-14, win.Height/2+backups.list.Index(), 28, 1).Print(vaxis.Segment{
+		Text: "  backup restored           ",
+		Style: vaxis.Style{
+			Foreground: vaxis.IndexColor(2),
+			Attribute:  vaxis.AttrReverse,
+		},
+	})
+	state.Render()
+loop:
+	for ev := range state.Events() {
+		switch ev.(type) {
+		case vaxis.Resize, vaxis.Redraw:
+			backups.Draw(state)
+			win.New(win.Width/2-14, win.Height/2+backups.list.Index(), 28, 1).Print(vaxis.Segment{
+				Text: "  backup restored           ",
+				Style: vaxis.Style{
+					Foreground: vaxis.IndexColor(2),
+					Attribute:  vaxis.AttrReverse,
+				},
+			})
+			state.Render()
+		case vaxis.Key:
+			if ev.(vaxis.Key).EventType == vaxis.EventPress {
+				break loop
+			}
+		}
+	}
+}

app/management.go

@@ -27,7 +27,7 @@ func NewManagement() *Management {
 			"read over feels",
 			"modify feels publishing",
 			"backup your feels",
-			"import a feels backup", // TODO
+			"import a feels backup",
 			"bury some feels",
 			"delete feels by day",
 			"purge all feels",
@@ -64,7 +64,8 @@ func (management *Management) Event(state *ui.State, event vaxis.Event) (process
 				ui.ViewChange <- NewPublishing()
 			case 2:
 				management.SaveBackup(state)
-			// case 3:
+			case 3:
+				ui.ViewChange <- NewBackups()
 			case 4:
 				ui.ViewChange <- NewBury()
 			case 5: