Added Update Function

This function will be useful to update the expanded view whenever user
navigates the file browser. The expanded view is a table which shows the
directory content.

client.go

@@ -2,6 +2,9 @@ package main
 
 import (
 	"github.com/fhs/gompd/mpd"
+	// "github.com/gdamore/tcell/v2"
+	"github.com/rivo/tview"
+	// "fmt"
 )
 
 func togglePlayBack(connection mpd.Client) error {
@@ -13,3 +16,47 @@ func togglePlayBack(connection mpd.Client) error {
 	}
 	return err
 }
+
+func join ( stringSlice [] string ) string{
+	var _s string = stringSlice[0]
+	for i:= 1; i<len(stringSlice);i++{
+		if ( _s != ""){
+			_s += ( "/" + stringSlice[i])
+		}
+	}
+	return _s
+}
+
+func Update(conn mpd.Client, f []FileNode, currentDirectoryStructure [] string, inputTable *tview.Table) {
+	ab := join(currentDirectoryStructure)
+	for i,j := range(f){
+		if len(j.children) == 0 {
+			a, err := conn.ListAllInfo(ab)
+			if err == nil {
+
+				inputTable.SetCell(i, 0,
+				tview.NewTableCell("[#fbff00]" + a[0]["Title"]).
+				SetAlign(tview.AlignLeft))
+
+				inputTable.SetCell(i, 1,
+				tview.NewTableCell("[#000000]" + a[0]["Artist"]).
+				SetAlign(tview.AlignLeft))
+
+				inputTable.SetCell(i, 2,
+				tview.NewTableCell("[#ff0030]" + a[0]["Album"]).
+				SetAlign(tview.AlignLeft))
+
+			}
+		} else {
+
+			inputTable.SetCell(i, 0,
+			tview.NewTableCell("[#fbff00::b]" + j.path).
+			SetAlign(tview.AlignLeft))
+
+		}
+	}
+}
+
+func addSong(conn mpd.Client, currentDirectoryStructure [] string, currentCellContent string){
+	conn.Add(join(currentDirectoryStructure) + "/" + currentCellContent)
+}