//
//  rhlibrary
//
//  The Radio Helsinki Rivendell Library
//
//
//  Copyright (C) 2016 Christian Pointner <equinox@helsinki.at>
//
//  This file is part of rhlibrary.
//
//  rhlibrary is free software: you can redistribute it and/or modify
//  it under the terms of the GNU General Public License as published by
//  the Free Software Foundation, either version 3 of the License, or
//  any later version.
//
//  rhlibrary is distributed in the hope that it will be useful,
//  but WITHOUT ANY WARRANTY; without even the implied warranty of
//  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
//  GNU General Public License for more details.
//
//  You should have received a copy of the GNU General Public License
//  along with rhlibrary. If not, see <http://www.gnu.org/licenses/>.
//

package main

import (
	"code.helsinki.at/rhrd-go/player"
	"github.com/gotk3/gotk3/gtk"
)

func addPlayButton(grid *gtk.Grid, p *player.PlayerChan) (err error) {
	var btn *gtk.Button
	if btn, err = gtk.ButtonNewFromIconName("media-playback-start", gtk.ICON_SIZE_DIALOG); err != nil {
		return
	}
	btn.Connect("clicked", func(_ *gtk.Button) {
		if err := p.Play(); err != nil {
			rhdl.Println(err) // TODO: feedback at GUI?
		}
	})
	grid.Add(btn)
	return
}

func addPauseButton(grid *gtk.Grid, p *player.PlayerChan) (err error) {
	var btn *gtk.Button
	if btn, err = gtk.ButtonNewFromIconName("media-playback-pause", gtk.ICON_SIZE_DIALOG); err != nil {
		return
	}
	btn.Connect("clicked", func(_ *gtk.Button) {
		if err := p.Pause(); err != nil {
			rhdl.Println(err) // TODO: feedback at GUI?
		}
	})
	grid.Add(btn)
	return
}

func addStopButton(grid *gtk.Grid, p *player.PlayerChan) (err error) {
	var btn *gtk.Button
	if btn, err = gtk.ButtonNewFromIconName("media-playback-stop", gtk.ICON_SIZE_DIALOG); err != nil {
		return
	}
	btn.Connect("clicked", func(_ *gtk.Button) {
		if err := p.Stop(); err != nil {
			rhdl.Println(err) // TODO: feedback at GUI?
		}
	})
	grid.Add(btn)
	return
}

func getPlayerWidget(p *player.PlayerChan) (gtk.IWidget, error) {

	var grid *gtk.Grid
	grid, err := gtk.GridNew()
	if err != nil {
		return nil, err
	}
	grid.SetOrientation(gtk.ORIENTATION_HORIZONTAL)
	grid.SetColumnSpacing(3)

	if err = addPlayButton(grid, p); err != nil {
		return nil, err
	}
	if err = addPauseButton(grid, p); err != nil {
		return nil, err
	}
	if err = addStopButton(grid, p); err != nil {
		return nil, err
	}

	return grid, nil
}