--[[
	Gamestates/Solo.lua
	Solo mode
	by piernov
]]--

local GUI = { InGame = require("GUI/InGame")}
local Game = require("Gamestates/Game")

local Solo = {}

function Solo:enter() -- Initialize or reset variables when entering game
	Previous = "Gamestates/Menu"
	Solo.Keypressed = {{}} -- 2D array for storage of button pressed
	Solo.Hints = {} -- Hints displayed
	Solo.state = "playing" -- Default to "playing" but it doesn't mean anything

	Solo.Answer = Game.genAnswer() -- Generate answer

	-- Debug
	if Debug == true then
		for k,v in ipairs(Solo.Answer) do
			print(k,v)
		end
	end

	Solo:resize() -- Call the function filling the canvas

	Solo.Music = Menu.Music
	Solo.Music:setLooping(true)
	if Config.Mute == false then
		Solo.Music:rewind()
	end
end

function Solo:resize() -- Called in :enter() and when the window is resized
	Solo.Display = love.graphics.newCanvas(Screen.width, Screen.height) -- Create the canvas containing base interface to avoid drawing it entirely each frame
	love.graphics.setCanvas(Solo.Display)
		love.graphics.setFont(Fonts[3]) -- Use font with size 3% by default
		Solo.Display:clear()
		for id, polygon in ipairs(GUI.InGame.Polygons) do
			GUI.InGame.drawPolygon(polygon)
		end
	love.graphics.setCanvas()
end

function Solo:init()
	Game.init()
	GUI.InGame.loadInterface()
end

function Solo:draw()
	love.graphics.setColor(255, 255, 255, 255)
	love.graphics.setBlendMode('premultiplied')
	love.graphics.draw(Solo.Display)
	love.graphics.setBlendMode('alpha')

	for num, line in ipairs(Solo.Hints) do
		for k, poly in ipairs(line) do
			GUI.InGame.drawPolygon(poly)
		end
	end

	for line, keys in ipairs(Solo.Keypressed) do
		for id, num in ipairs(keys) do
			GUI.InGame.drawPolygon({ Type = "rectangle", DrawMode = "fill", Position = { x = 0.50+(id-1)*0.075, y = 0.15+(line-1)*0.075-0.025}, Dimension = {width = 0.04, height = 0.04}, Colors = GUI.InGame.Colors[num] })
		end
	end

	-- Debug
	if Debug == true then
		for id, num in ipairs(Solo.Answer) do
			GUI.InGame.drawPolygon({ Type = "rectangle", DrawMode = "fill", Position = { x = 0.08+(id-1)*0.075+0.005, y = 0.12+0.005}, Dimension = {width = 0.035, height = 0.04}, Colors = GUI.InGame.Colors[num] }) -- Display answer
		end
	end

	if Solo.state == "found" then
		GUI.InGame.displayPopup("Found !")
	end

	GUI.InGame.drawPolygon({ Type = "print", Text = "Solo", Position = { x = 0.15, y = 0.06}, Colors = {0, 0, 171, 255} }) -- Display "Solo" text
	GUI.InGame.drawPolygon({ Type = "print", Text = Config.player_name.text, Position = { x = 0.60, y = 0.06}, Colors = {0, 0, 171, 255} }) -- Display local player's name
end

function Solo:mousepressed(x, y, b) -- Handle mouse
	if Solo.state == "found" then return end -- Don't do anything if answer is already found

	x = x/Screen.width -- relative coordinates
	y = y/Screen.height
	if 0.875 < y and y < 0.915 then -- lower part of the screen
		if x > 0.45 then
			for i = 0,5 do
				if 0.50+i*0.075 < x and x < 0.50+i*0.075+0.04 then
					if #Solo.Keypressed > 7 or #Solo.Keypressed[#Solo.Keypressed] >= 4  then -- Line already full
						return
					else
						for k,v in pairs(Solo.Keypressed[#Solo.Keypressed]) do
							if v == i+1 then
								return -- Disallow multiple identical colors in same line
							end
						end

						table.insert(Solo.Keypressed[#Solo.Keypressed], i+1) -- Click detected on a color-button
					end
				end
			end
		elseif 0.25 < x and x < 0.375 and #Solo.Keypressed <= 7 and #Solo.Keypressed[#Solo.Keypressed] == 4 then -- Clik on Ok button
			local hints = table.concat(Game.checkKeys(Solo.Keypressed[#Solo.Keypressed], Solo.Answer))
			if hints == "1111" then
				Solo.state = "found"
			else
				table.insert(Solo.Hints, Game.addHints(hints, #Solo.Keypressed))
				Solo.Keypressed[#Solo.Keypressed+1] = {}
			end
		elseif #Solo.Keypressed <= 7 and 0.075 < x and x < 0.200 and #Solo.Keypressed[#Solo.Keypressed] > 0 then -- Click on reset button
			Solo.Keypressed[#Solo.Keypressed] = {}
		end
	end
end

function Solo:leave()
	Solo.Music:stop()
end

return Solo