local graphics = require("graphics")
local event = require("event")

Button = {x = 1, y = 1, w = 8, h=1, title="Button", bColor=0x00aaaa, fColor=0x000000, onPressed=function() end}
Button.__index = Button

function Button:new(x,y,w,h,title,onPressed,bColor,fColor)
	local self = {}
	setmetatable(self, Button)
	self.x = math.floor(x)
	self.y = math.floor(y)
	self.w = math.floor(w)
	self.h = math.floor(h)
	self.title = title
	self.bColor = bColor
	self.fColor = fColor
	self.onPressed = onPressed

	self._eventID = event.listen("touch", function(_,screen,x,y,mb,ply) self:update(screen,x,y,mb,ply) end)
	return self
end


function Button:draw()
	local gpu = graphics.gpu
	
	local _, _, bck = gpu.get(self.x, self.y)

	gpu.setForeground(self.fColor)
	gpu.setBackground(self.bColor)
	gpu.fill(self.x,self.y,self.w,self.h," ")
	
	local magic = math.floor(self.x + self.w/2) - math.floor(self.title:len() / 2)
	gpu.set(magic,self.y + math.floor(self.h/2), self.title)


end

function Button:update(screen, x, y, mouseButton, player)
	local gpu = graphics.gpu
	if (x >= self.x and x <= self.x + self.w-1) and (y >= self.y and y <= self.h + self.y) then
		if self.onPressed then
			gpu.set(1,1,"clicked:"..self.title)
			self.onPressed(self)
		end
	end
end

function Button:destroy()
	event.cancel(tonumber(self._eventID))
end

return Button

-- function button.create(x,y,w,h,text,fcolor,bcolor, func)
-- 	o = {

-- 		draw = function()
-- 			local gpu = graphics.gpu
-- 			gpu.setForeground(self.fcolor)
-- 			gpu.setBackground(self.bcolor)
-- 			gpu.fill(self.x,self.y,self.w,self.h," ")
-- 			gpu.set(self.x,self.y, self.text)
-- 		end,

-- 		onPressed = function ()
-- 						self.bcolor = 0x00aaaa
-- 					end,

-- 		update = function(screen, x, y, mouseButton, player)
-- 				local gpu = graphics.gpu
-- 					-- print("pos:"..x..","..y)
-- 					-- gpu.set(1,1,":"..tostring(x >= self.x)..","..tostring(x <= self.x + self.w)..","..tostring(y >= self.y)..",".. tostring(y <= self.y + self.h))
-- 					-- gpu.set(1,2,":"..tostring(self.w)..","..self.h)

-- 					if (x >= self.x and x <= self.x + self.w) and (y >= self.y and y <= self.y + self.h-1) then
-- 						gpu.set(1,7,"clicked")
-- 						self:onPressed()
-- 					end
-- 				end

-- 	}   -- create object if user does not provide one
-- 	setmetatable(o, self)
-- 	self.__index = self
-- 	self.x = x
-- 	self.y = y
-- 	self.w = w
-- 	self.h = h
-- 	self.text = text
-- 	self.fcolor = fcolor
-- 	self.bcolor = bcolor

-- 	event.listen("touch", function(_,screen,x,y,mb,ply) self:update(screen,x,y,mb,ply) end)

-- 	return o
-- end

-- function objBtn:draw()
-- 	local gpu = graphics.gpu
-- 	gpu.setForeground(self.fcolor)
-- 	gpu.setBackground(self.bcolor)
-- 	gpu.fill(self.x,self.y,self.w,self.h," ")
-- 	gpu.set(self.x,self.y, self.text)
-- end

-- function objBtn:onPressed()
-- 	self.bcolor = 0x00aaaa
-- end


-- function objBtn:update(screen, x, y, mouseButton, player)
-- 	local gpu = graphics.gpu
-- 	-- print("pos:"..x..","..y)
-- 	-- gpu.set(1,1,":"..tostring(x >= self.x)..","..tostring(x <= self.x + self.w)..","..tostring(y >= self.y)..",".. tostring(y <= self.y + self.h))
-- 	-- gpu.set(1,2,":"..tostring(self.w)..","..self.h)

-- 	if (x >= self.x and x <= self.x + self.w) and (y >= self.y and y <= self.y + self.h-1) then
-- 		gpu.set(1,7,"clicked")
-- 		self:onPressed()
-- 	end
-- end

-- function objBtn:destroy()
-- 	objBtn = nil
-- end