local constants = require 'constants'
local settings = require 'config.settings'

local frontApps = {}

sbar.add('bracket', constants.items.FRONT_APPS, {}, { position = 'left' })

local frontAppWatcher = sbar.add('item', {
  drawing = false,
  updates = true,
})

local function selectFocusedWindow(frontAppName)
  for appName, app in pairs(frontApps) do
    local isSelected = appName == frontAppName
    local color = isSelected and settings.colors.orange or settings.colors.white
    app:set {
      label = { color = color },
      icon = { color = color },
    }
  end
end

local function updateWindows(windows)
  sbar.remove('/' .. constants.items.FRONT_APPS .. '\\.*/')

  frontApps = {}
  local foundWindows = string.gmatch(windows, '[^\n]+')
  for window in foundWindows do
    local parsedWindow = {}
    for key, value in string.gmatch(window, '(%w+)=([%w%s]+)') do
      parsedWindow[key] = value
    end

    local windowId = parsedWindow['id']
    local windowName = parsedWindow['name']
    local icon = settings.icons.apps[windowName] or settings.icons.apps['default']

    frontApps[windowName] = sbar.add('item', constants.items.FRONT_APPS .. '.' .. windowName, {
      label = {
        padding_left = 0,
        string = windowName,
      },
      icon = {
        string = icon,
        font = settings.fonts.icons(),
      },
      click_script = constants.aerospace_cmd .. ' focus --window-id ' .. windowId,
    })

    frontApps[windowName]:subscribe(constants.events.FRONT_APP_SWITCHED, function(env) selectFocusedWindow(env.INFO) end)
  end

  sbar.exec(constants.aerospace.GET_CURRENT_WINDOW, function(frontAppName) selectFocusedWindow(frontAppName:gsub('[\n\r]', '')) end)
end

local function getWindows() sbar.exec(constants.aerospace.LIST_WINDOWS, updateWindows) end

frontAppWatcher:subscribe(constants.events.UPDATE_WINDOWS, function() getWindows() end)

getWindows()