require("common.class")
local Dim = require("common.dimensions")
local ServiceField = require("titlescreen.fields.service.servicefield")

---@class UpdateField: ServiceField
---@field _timer number
local UpdateField = {
    __tostring = function () return "UpdateField" end,
    UPDATE_FLICKER_TIME = 0.5,
    UPDATE_FLICKER_COLORS = {
        {255, 0, 0, 255},
        {255, 255, 0, 255}
    }
}

function UpdateField:new(o)
    o = Inherit(self, ServiceField, o)

    o._timer = 0

    return o
end

function UpdateField:handleButtonInput(button)
    local url, _ = game.UpdateAvailable()

    if button == game.BUTTON_STA and url then
        Menu.Update()
        return true
    end

    return false
end

function UpdateField:drawValue(deltaTime)
    self._timer = self._timer + deltaTime
    local url, version = game.UpdateAvailable()

    gfx.BeginPath()
    gfx.FontSize(self.SERVICE_DEFAULT_FONT_SIZE)
    gfx.LoadSkinFont(self.SERVICE_DEFAULT_FONT_FACE)
    gfx.TextAlign(gfx.TEXT_ALIGN_LEFT | gfx.TEXT_ALIGN_TOP)
    if url then
        if (self._timer % self.UPDATE_FLICKER_TIME) < self.UPDATE_FLICKER_TIME / 2 then
            gfx.FillColor(table.unpack(self.UPDATE_FLICKER_COLORS[1]))
        else
            gfx.FillColor(table.unpack(self.UPDATE_FLICKER_COLORS[2]))
        end
        gfx.Text("*UPDATE AVAILABLE (" .. version .. ")*", Dim.design.width / 2, 0)
    else
        gfx.FillColor(table.unpack(self.SERVICE_DEFAULT_FONT_COLOR))
        gfx.Text(self.value or "<VERSION STRING NOT AVAILABLE>", Dim.design.width / 2, 0)
    end

end

return UpdateField