local Milo    = require('milo')
local Sound   = require('sound')
local UI      = require('ui')

local colors  = _G.colors
local context = Milo:getContext()
local device  = _G.device

local speakerNode = context.storage:getSingleNode('speaker')
if speakerNode then
  Sound.setVolume(speakerNode.volume)
end

local wizardPage = UI.WizardPage {
  title = 'Speaker',
  index = 2,
  backgroundColor = colors.cyan,
  [1] = UI.Text {
    x = 2, y = 2,
    textColor = colors.yellow,
    value = 'Set the volume for sound effects',
  },
  form = UI.Form {
    x = 2, ex = -2, y = 3, ey = -2,
    manualControls = true,
    volume = UI.TextEntry {
      formLabel = 'Volume', formKey = 'volume',
      width = 5, limit = 3,
      validate = 'numeric',
      help = 'A value from 0 (mute) to 1 (loud)',
    },
    testSound = UI.Button {
      x = 15, y = 2,
      text = 'Test', event = 'test_sound',
      help = 'Test sound volume',
    },
  },
}

function wizardPage:setNode(node)
  self.form:setValues(node)
end

function wizardPage:saveNode(node)
  Sound.setVolume(node.volume)
end

function wizardPage:validate()
  return self.form:save()
end

function wizardPage:isValidType(node)
  local m = device[node.name]
  return m and m.type == 'speaker' and {
    name = 'Speaker',
    value = 'speaker',
    category = 'custom',
    help = 'Sound effects',
  }
end

function wizardPage:isValidFor(node)
  return node.mtype == 'speaker'
end

function wizardPage:eventHandler(event)
  if event.type == 'test_sound' then
    local vol = tonumber(self.form.volume.value)
    Sound.play('entity.item.pickup', vol)
  end
end

UI:getPage('nodeWizard').wizard:add({ speaker = wizardPage })