local qnative = require "quarrel.native"
local qui = require "quarrel.ui"
local qvars = require "quarrel.vars"
local wibox = require "wibox"

local default_text = "Nothing playing"

local w_title = wibox.widget {
    widget = wibox.widget.textbox,
    text = "Nothing playing",
}

local w_artist = wibox.widget {
    widget = wibox.container.background,
    fg = qvars.colors.dim.fg,
    {
        widget = wibox.widget.textbox,
        text = "",
    },
}

local w_progress_bar = wibox.widget {
    widget = wibox.widget.progressbar,
    max_value = 0,
    value = 0,
    forced_height = qvars.char_height / 2,
    forced_width = qvars.expanded_bar_size
        - (qvars.big_padding + qvars.big_padding * 2 + qvars.padding * 2)
        - (qvars.char_height / 1.25 + qvars.padding) * 3,
    color = qvars.colors.yellow,
    background_color = qvars.colors.black,
    shape = qvars.shape,
}

local music = wibox.widget(qui.styled {
    widget = wibox.container.background,
    {
        widget = wibox.container.margin,
        margins = qvars.big_padding,
        {
            {
                {
                    widget = wibox.container.background,
                    bg = qvars.colors.bg,
                    shape = qvars.shape,
                    {
                        widget = wibox.container.margin,
                        margins = qvars.padding,
                        {
                            {
                                widget = wibox.container.constraint,
                                width = qvars.expanded_bar_size
                                    - (qvars.big_padding + qvars.big_padding * 2 + qvars.padding * 2),
                                height = qvars.char_height,
                                {
                                    widget = wibox.container.scroll.horizontal,
                                    speed = 50,
                                    step_function = wibox.container.scroll.step_functions.waiting_nonlinear_back_and_forth,
                                    w_title,
                                },
                            },
                            {
                                widget = wibox.container.constraint,
                                width = qvars.expanded_bar_size
                                    - (qvars.big_padding + qvars.big_padding * 2 + qvars.padding * 2),
                                height = qvars.char_height,
                                {
                                    widget = wibox.container.scroll.horizontal,
                                    speed = 50,
                                    step_function = wibox.container.scroll.step_functions.waiting_nonlinear_back_and_forth,
                                    w_artist,
                                },
                            },
                            layout = wibox.layout.fixed.vertical,
                        },
                    },
                },
                nil,
                nil,
                layout = wibox.layout.align.horizontal,
            },
            nil,
            {
                widget = wibox.container.background,
                bg = qvars.colors.bg,
                shape = qvars.shape,
                w_progress_bar,
            },
            layout = wibox.layout.align.vertical,
        },
    },
})

awesome.connect_signal("services::playerctl::metadata", function(title, artist, album_path)
    w_title.text = title ~= "" and qnative.util.decode_html(title) or default_text
    w_artist.widget.text = qnative.util.decode_html(artist)
end)

awesome.connect_signal("services::playerctl::position", function(position, length)
    w_progress_bar.value = position
    w_progress_bar.max_value = length
end)

awesome.connect_signal("services::playerctl::no_players", function()
    w_title.text = default_text
    w_artist.text = ""
    w_progress_bar.value = 0
    w_progress_bar.max_value = 0
end)

return music