local lg = assert( love.graphics )
local button = {
  h = 60,
  y = 0,
  x = 0,
  w = 100,
  space = 15,
}
local mt = { __index = button }

function button:new( t )
  t = t or {}
  
  if t.y then button.y = t.y end
  if t.h then button.h = t.h end
  if t.w then button.w = t.w end
  if t.x then button.x = t.x end
  if t.space then button.space = t.space end
  
  t.x = t.x or button.x
  t.y = t.y or button.y
  t.w = t.w or button.w
  t.h = t.h or button.h
  t.text = t.text or lg.newText( lg.getFont(), "button" )
  t.color = t.color or { 0.5, 0.5, 0.5, 0.5 }
  t.callback = t.callback or function() print( "Clicked button:", t.text ) end
  t.selected = t.selected or false
  if t.active == nil then t.active = true end
  
  button.y = button.y + t.h + button.space
  
  return setmetatable( t, mt )
end

function button:contains( x, y )
  local mx, my, Mx, My = self.x, self.y, self.x + self.w, self.y + self.h
  return self.active and (x < Mx and x > mx and y > my and y < My)
end

function button:draw( )
  if not self.active then return end
  lg.setColor( self.color )
  lg.rectangle( "fill", self.x, self.y, self.w, self.h, 10)
  
  
  if self.selected then 
    lg.setColor( 1, 1, 1, 0.8 )
    lg.rectangle( "fill", self.x + 3, self.y + 3, self.w - 6, self.h - 6, 10 )
  end

  lg.setColor( 0, 0, 0, 0.8 )
  lg.draw( self.text, self.x + 15, self.y + self.h / 2 - self.text:getHeight() / 2 )
  lg.setColor( 0, 0, 0, 0.2 )
  lg.draw( self.text, self.x + 12, self.y + self.h / 2 - self.text:getHeight() / 2 )-- + self.h / 2 )
end

return setmetatable( button, { __call = button.new } )