local graphics = require("graphics")
local Text = require("graphics.text")

Bar = {x = 1, y = 1, w = 8, h=1, title="Untitled Bar", bColor=0x00aaaa, fColor=0x000000, pct=0.0, value=0.0, unit=""}
Bar.__index = Bar

function Bar:new(x,y,w,h,title,bColor,fColor, pct, value, unit)
	local self = {}
	setmetatable(self, Bar)

	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.pct = pct
	self.value = value
	self.unit = unit

	self._title_obj = Text:new(self.x, self.y, self.title, false ,0x000000, 0x00aaaa)

	return self
end

function Bar:setPct(pct)

	self.pct = math.max(math.min(1, pct), 0)
end

function Bar:draw()
	--[[
		fColor is used for bar filled
		bColor is used as background for bar
		Black is used for text.
	]]
	local gpu = graphics.gpu
	self._title_obj:draw()	
	gpu.setForeground(0x000000)
	gpu.setBackground(self.bColor)

	
	gpu.setForeground(0xffffff)
	gpu.set(self.x,self.y," "..self.title.." ")
	gpu.fill(self.x,self.y+1,self.w,self.h," ")
	gpu.setBackground(self.fColor)
	gpu.fill(self.x,self.y+1,math.floor(self.x+self.w-1 * self.pct),self.h," ")
end

return Bar