#!/usr/bin/env python3

import gi, sys, os, mutagen, base64, json

gi.require_version('Gtk', '3.0')
from gi.repository import Gtk, Gdk, GLib, GdkPixbuf, GObject


class PreferencesWindow(Gtk.Dialog):
  def __init__(self, app, mpd):
    Gtk.Dialog.__init__(self, title = "Sonist 基础设置")

    self.set_default_size(464, 320)

    self.app = app
    self.mpd = mpd
    self.layout = self.get_content_area()

    config = app.config_data

    grid = Gtk.Grid(column_spacing = 8, row_spacing = 16)

    txt1 = Gtk.Label('MPD地址: ')
    txt2 = Gtk.Label('MPD端口: ')
    txt3 = Gtk.Label('音乐目录: ')
    txt4 = Gtk.Label('更新数据库: ')
    txt5 = Gtk.Label('  重新扫描会清空播放列表并停止播放')
    txt6 = Gtk.Label('当前歌曲数: ')
    txt7 = Gtk.Label('0 首')
    input1 = Gtk.Entry(placeholder_text = '默认 127.0.0.1')
    input2 = Gtk.SpinButton.new_with_range(min = 1024, max = 65535, step = 1)
    input3 = Gtk.Entry(placeholder_text = '默认读取 $HOME/.mpd/mpd.conf 中定义的目录')
    btn = Gtk.Button(label = '重新扫描并重建播放列表')
    btn.connect('clicked', self.scan_music)

    input1.set_size_request(312, -1)
    input1.set_text(config['host'])
    input2.set_value(config['port'])
    input3.set_text(config['music_directory'])



    grid.attach(txt1, 0, 0, 1, 1)
    grid.attach(input1, 2, 0, 1, 1)

    grid.attach(txt2, 0, 1, 1, 1)
    grid.attach(input2, 2, 1, 1, 1)

    grid.attach(txt3, 0, 2, 1, 1)
    grid.attach(input3, 2, 2, 1, 1)

    grid.attach(txt4, 0, 3, 1, 1)
    box = Gtk.Box()
    box.add(btn)
    grid.attach(box, 2, 3, 1, 1)

    grid.attach(txt6, 0, 4, 1, 1)
    grid.attach(txt7, 2, 4, 1, 1)


    self.scan_result = txt7
    self.host_input = input1
    self.port_input = input2
    self.dir_input = input3
    self.scan_input = btn

    self.layout.set_border_width(32)
    self.layout.add(grid)



    self.add_button('关闭', 0)
    self.add_button('保存', 1)


    self.set_keep_above(True)
    self.connect("response", self.on_button_clicked)
    mpd.connect('online', lambda o: self.get_mpd_music())


  def get_mpd_music(self, force = False):
    res = self.mpd.stats()
    tips = '扫描完成... 共' if force else ''
    self.scan_result.set_text(f"{tips}{res.get('songs')} 首")


  def scan_music(self, btn):
    need_resume = self.mpd.status().get('state') == 'play'
    self.mpd.update()
    self.mpd.stop()
    self.mpd.clear()
    songs = self.mpd.listall()

    for it in songs:
      self.mpd.add(it['file'])
    
    self.get_mpd_music(True)

    if need_resume:
      self.mpd.play()


  def show(self):
    if self.mpd.connected:
      self.get_mpd_music()
    else:
      self.scan_result.set_text("MPD 未运行...")

    self.show_all()
    self.run()


  def on_button_clicked(self, dialog,  res):
    data = {}
    # 1 为保存按钮
    if res == 1:
      data['host'] = self.host_input.get_text()
      data['port'] = int(self.port_input.get_value())
      data['music_directory'] = self.dir_input.get_text()
      
      self.app.config_data = data

      with open(self.app.config_file, 'w') as f:
        buff = json.dumps(data)
        f.write(buff)

    self.hide()