Implemented cmd package

ui/cmd/cmd.go

@@ -0,0 +1,57 @@
+package cmd
+
+import tea "github.com/charmbracelet/bubbletea"
+
+type CallType int8
+
+const (
+	WinOpen CallType = iota
+	WinFocus
+	WinBlur
+
+	ViewFocus
+	ViewBlur
+	ViewRefreshData
+)
+
+type Arg struct {
+	Name  string
+	Value interface{}
+}
+
+type Command struct {
+	Call   CallType
+	Target string
+	Args   map[string]interface{}
+}
+
+func New(
+	call CallType,
+	target string,
+	args ...Arg,
+) *Command {
+	cmd := new(Command)
+	cmd.Call = call
+	cmd.Target = target
+	cmd.Args = make(map[string]interface{})
+
+	for _, arg := range args {
+		cmd.Args[arg.Name] = arg.Value
+	}
+
+	return cmd
+}
+
+func (cmd *Command) Tea() tea.Cmd {
+	return func() tea.Msg {
+		return *cmd
+	}
+}
+
+func (cmd *Command) GetArg(name string) interface{} {
+	if iface, ok := cmd.Args[name]; ok {
+		return iface
+	}
+
+	return nil
+}