local mpc = require("widgets/mpc")
local textbox = require("wibox.widget.textbox")
local timer = require("gears.timer")

mpd_widget = textbox()

local function update_widget()
    local text = ""
    if state == "pause" then
        text = "|| "
    end
    text = text .. tostring(artist or "") .. " - " .. tostring(title or "")
    mpd_widget.text = text
end

local connection
local function error_handler(err)
    mpd_widget:set_text("Error: " .. tostring(err))
    timer.start_new(10, function()
        connection:send("ping")
    end)
end

connection = mpc.new(nil, nil, nil, error_handler,
    "status", function(_, result)
        state = result.state
    end,
    "currentsong", function(_, result)
        title, artist, file = result.title, result.artist, result.file
        pcall(update_widget)
    end
)

mpd_widget:buttons(gears.table.join(
  awful.button({}, 1, function() connection:toggle_play() end)
, awful.button({}, 4, function() connection:change_volume(5) end)
, awful.button({}, 5, function() connection:change_volume(-5) end))
)

globalkeys = gears.table.join(globalkeys,
    awful.key({ modkey }, "p", function() connection:toggle_play() end,
              { description = "toogle play", group = "mpd" }),
    awful.key({ modkey }, ",", function() connection:send("previous") end,
              { description = "previous track", group = "mpd" }),
    awful.key({ modkey }, ".", function() connection:send("next") end,
              { description = "next track", group = "mpd" })
)
return mpd_widget