local defaultFont = love.graphics.newFont(20)
local function defaultDrawingTextFunc(name, x, y, w, h)
    love.graphics.setFont(defaultFont)
    love.graphics.printf(name, x, y, w, "center")
end

local button = {}; button.__index = button
function button:draw()
    love.graphics.setColor(1,1,1)
    love.graphics.setLineWidth(self.lineWidth)
    love.graphics.rectangle('line', self.x, self.y, self.w, self.h)
    self.drawingTextFunc(self.name, self.x, self.y, self.w, self.h)
end


local BUTTON = {}

---@param name string @ Name of the button, will be shown
---@param x number
---@param y number
---@param w number
---@param h number
---@param drawingTextFunc? function
---@param lineWidth? number|1 @ Line width will be used to draw button
function BUTTON.new(name, x, y, w, h, lineWidth, drawingTextFunc)
    assert(type(name) == "string", "[name] is missing or not valid")
    assert(type(x) == "number" and x > 0, "[x] must be a positive integer")
    assert(type(y) == "number" and y > 0, "[y] must be a positive integer")
    assert(type(w) == "number" and w > 0, "[w] must be a positive integer")
    assert(type(h) == "number" and h > 0, "[h] must be a positive integer")
    assert(type(drawingTextFunc) == "function" or type(drawingTextFunc) == "nil", "[drawingTextFunc] must be a function or nil")
    assert((type(lineWidth) == "number" and lineWidth > 0) or type(drawingTextFunc) == "nil", "[lineWidth] must be a postive integer")

    return setmetatable({
        name = name,
        x = x,
        y = y,
        w = w,
        h = h,
        drawingTextFunc = drawingTextFunc or defaultDrawingTextFunc,
        lineWidth = lineWidth or 1
    }, button)
end

--- Set the default funciton used to drawing text, will be passed name, x, y, w and h
function BUTTON.setDefaultDrawingTextFunction(f)
    assert(type(f) == "function", "[f] must be a function!")
    defaultDrawingTextFunc = f
end

return BUTTON