[style]<main>: add config home option (#15)

Signed-off-by: o98k-ok <hggend@gmail.com>

cmd/terminal/main.go

@@ -1,6 +1,7 @@
 package main
 
 import (
+	"flag"
 	"fmt"
 
 	tea "github.com/charmbracelet/bubbletea"
@@ -9,12 +10,20 @@ import (
 	"github.com/o98k-ok/voice/internal/ui"
 )
 
-const (
-	ROOT = "./data"
-)
+type Options struct {
+	RootPath string
+}
+
+func options() *Options {
+	var option Options
+	flag.StringVar(&option.RootPath, "home", "./data", "voice working home path[must exist]")
+
+	flag.Parse()
+	return &option
+}
 
 func main() {
-	localIndex := storage.NewLocalFileStorage(ROOT)
+	localIndex := storage.NewLocalFileStorage(options().RootPath)
 	player := player.NewVoicePlayer(48000)
 	player.InitPlayList(localIndex)
 	player.Run()

internal/storage/local.go

@@ -22,6 +22,10 @@ type LocalFileStorage struct {
 }
 
 func NewLocalFileStorage(root string) *LocalFileStorage {
+	if _, err := os.Stat(root); err != nil {
+		panic(err)
+	}
+
 	return &LocalFileStorage{
 		Root: root,
 	}

internal/ui/history.go

@@ -110,7 +110,9 @@ func (hl *HistoryList) MsgKeyBindings() map[string]map[string]func(interface{})
 				}
 
 				hl.list.table.Focus()
-				hl.list.ResetList(hl.fechByBvID(hl.player.CurrentElem.Value.(*music.Music).BvID, 10))
+				if hl.player.CurrentElem != nil {
+					hl.list.ResetList(hl.fechByBvID(hl.player.CurrentElem.Value.(*music.Music).BvID, 10))
+				}
 				hl.list.table.SetCursor(hl.current)
 				return nil
 			},

internal/ui/input.go

@@ -43,7 +43,7 @@ func NewInputElem(player *player.VoicePlayer, storage storage.Storage, headers [
 		logo:       &LogoElem{},
 		result:     NewListElem(headers, widths, nil),
 		fetcher:    bilibili.NewBlibliFetcher(netutil.NewHttpClient()),
-		mconvertor: convertor.NewAfconvertConvertor("./data"),
+		mconvertor: convertor.NewAfconvertConvertor(storage.GetRootPath()),
 		fetcherIdx: 1,
 		storage:    storage,
 		player:     player,