local gc,sys=love.graphics,love.system
local kb=love.keyboard

local sin=math.sin
local ins,rem=table.insert,table.remove
local sub=string.sub

local scene={}

local cur--Cursor position
local sure

function scene.sceneInit()
	cur=#BAG
	sure=0
end

local minoKey={
	["1"]=1,["2"]=2,["3"]=3,["4"]=4,["5"]=5,["6"]=6,["7"]=7,
	z=1,s=2,j=3,l=4,t=5,o=6,i=7,
	p=10,q=11,f=12,e=13,u=15,
	v=16,w=17,x=18,r=21,y=22,n=23,h=24,
	["/"]=26,c=27,[","]=27,["'"]=27,["-"]=28,[";"]=28,["."]=29,
}
local minoKey2={
	["1"]=8,["2"]=9,["3"]=19,["4"]=20,["5"]=14,["7"]=25,
	z=8,s=9,t=14,j=19,l=20,i=25,["-"]=26,o=29,
}
function scene.keyDown(key)
	if key=="left"then
		local p=cur
		if p==0 then
			cur=#BAG
		else
			repeat
				p=p-1
			until BAG[p]~=BAG[cur]
			cur=p
		end
	elseif key=="right"then
		local p=cur
		if p==#BAG then
			cur=0
		else
			repeat
				p=p+1
			until BAG[p+1]~=BAG[cur+1]
			cur=p
		end
	elseif key=="ten"then
		for _=1,10 do
			local p=cur
			if p==#BAG then break end
			repeat
				p=p+1
			until BAG[p+1]~=BAG[cur+1]
			cur=p
		end
	elseif key=="backspace"then
		if cur>0 then
			rem(BAG,cur)
			cur=cur-1
			if cur>0 and BAG[cur]==BAG[cur+1]then
				scene.keyDown("right")
			end
		end
	elseif key=="delete"then
		if sure>20 then
			for _=1,#BAG do
				rem(BAG)
			end
			cur=0
			sure=0
			SFX.play("finesseError",.7)
		else
			sure=50
		end
	elseif key=="="then
		local l={1,2,3,4,5,6,7}
		repeat scene.keyDown(rem(l,math.random(#l)))until not l[1]
	elseif key=="tab"then
		local W=WIDGET.active.sequence
		if kb.isDown("lshift","rshift")then
			W:press(W.x)
		else
			W:press(W.x+W.w)
		end
	elseif key=="c"and kb.isDown("lctrl","rctrl")or key=="cC"then
		if #BAG>0 then
			sys.setClipboardText("Techmino SEQ:"..DATA.copySequence())
			LOG.print(text.exportSuccess,COLOR.G)
		end
	elseif key=="v"and kb.isDown("lctrl","rctrl")or key=="cV"then
		local str=sys.getClipboardText()
		local p=str:find":"--ptr*
		if p then
			if not str:sub(1,p-1):find"SEQ"then
				LOG.print(text.pasteWrongPlace)
			end
			str=str:sub(p+1)
		end
		if DATA.pasteSequence(str)then
			LOG.print(text.importSuccess,COLOR.G)
			cur=#BAG
		else
			LOG.print(text.dataCorrupted,COLOR.R)
		end
	elseif key=="escape"then
		SCN.back()
	elseif type(key)=="number"then
		cur=cur+1
		ins(BAG,cur,key)
	elseif #key==1 then
		key=(kb.isDown("lshift","lalt","rshift","ralt")and minoKey2 or minoKey)[key]
		if key then
			local p=cur+1
			while BAG[p]==key do p=p+1 end
			ins(BAG,p,key)
			cur=p
			SFX.play("lock")
		end
	end
end

function scene.update()
	if sure>0 then sure=sure-1 end
end

function scene.draw()
	--Draw frame
	gc.setColor(1,1,1)
	gc.setLineWidth(4)
	gc.rectangle("line",100,110,1080,260)

	--Draw sequence
	local miniBlock=TEXTURE.miniBlock
	local libColor=minoColor
	local set=SETTING.skin
	local L=BAG
	local x,y=120,136--Next block pos
	local cx,cy=120,136--Cursor-center pos
	local i,j=1,#L
	local count=1
	setFont(25)
	repeat
		if L[i]==L[i-1]then
			count=count+1
		else
			if count>1 then
				gc.setColor(1,1,1)
				gc.print("×",x-5,y-14)
				gc.print(count,x+10,y-13)
				x=x+(count<10 and 33 or 45)
				count=1
				if i==cur+1 then
					cx,cy=x,y
				end
			end
			if x>1060 then
				x,y=120,y+50
			end
			if i<=j then
				local B=miniBlock[L[i]]
				gc.setColor(libColor[set[L[i]]])
				gc.draw(B,x,y,nil,15,15,0,B:getHeight()*.5)
				x=x+B:getWidth()*15+10
			end
		end

		if i==cur then
			cx,cy=x,y
		end
		i=i+1
	until i>j+1

	--Draw lenth
	setFont(40)
	gc.setColor(1,1,1)
	gc.print(#L,120,310)

	--Draw cursor
	gc.setColor(.5,1,.5,.6+.4*sin(TIME()*6.26))
	gc.line(cx-5,cy-20,cx-5,cy+20)

	--Confirm reset
	if sure>0 then
		gc.setColor(1,1,1,sure*.02)
		gc.draw(drawableText.question,980,570)
	end
end

scene.widgetList={
	WIDGET.newText{name="title",x=520,y=5,font=70,align="R"},
	WIDGET.newText{name="subTitle",x=530,y=50,font=35,align="L",color="H"},

	WIDGET.newSelector{name="sequence",x=1080,y=60,w=200,color="Y",
		list={"bag","his4","c2","rnd","mess","reverb","loop","fixed"},
		disp=CUSval("sequence"),
		code=CUSsto("sequence")
	},

	WIDGET.newKey{name="Z",		x=120,y=460,w=80,font=50,code=pressKey(1)},
	WIDGET.newKey{name="S",		x=200,y=460,w=80,font=50,code=pressKey(2)},
	WIDGET.newKey{name="J",		x=280,y=460,w=80,font=50,code=pressKey(3)},
	WIDGET.newKey{name="L",		x=360,y=460,w=80,font=50,code=pressKey(4)},
	WIDGET.newKey{name="T",		x=440,y=460,w=80,font=50,code=pressKey(5)},
	WIDGET.newKey{name="O",		x=520,y=460,w=80,font=50,code=pressKey(6)},
	WIDGET.newKey{name="I",		x=600,y=460,w=80,font=50,code=pressKey(7)},
	WIDGET.newKey{name="left",	x=680,y=460,w=80,color="lG",font=55,code=pressKey"left"},
	WIDGET.newKey{name="right",	x=760,y=460,w=80,color="lG",font=55,code=pressKey"right"},
	WIDGET.newKey{name="ten",	x=840,y=460,w=80,color="lG",font=40,code=pressKey"ten"},
	WIDGET.newKey{name="backsp",x=920,y=460,w=80,color="lY",font=50,code=pressKey"backspace"},
	WIDGET.newKey{name="reset",	x=1000,y=460,w=80,color="lY",font=25,code=pressKey"delete"},

	WIDGET.newKey{name="Z5",	x=120,y=540,w=80,color="lH",font=50,code=pressKey(8)},
	WIDGET.newKey{name="S5",	x=200,y=540,w=80,color="lH",font=50,code=pressKey(9)},
	WIDGET.newKey{name="P",		x=280,y=540,w=80,color="lH",font=50,code=pressKey(10)},
	WIDGET.newKey{name="Q",		x=360,y=540,w=80,color="lH",font=50,code=pressKey(11)},
	WIDGET.newKey{name="F",		x=440,y=540,w=80,color="lH",font=50,code=pressKey(12)},
	WIDGET.newKey{name="E",		x=520,y=540,w=80,color="lH",font=50,code=pressKey(13)},
	WIDGET.newKey{name="T5",	x=600,y=540,w=80,color="lH",font=50,code=pressKey(14)},
	WIDGET.newKey{name="U",		x=680,y=540,w=80,color="lH",font=50,code=pressKey(15)},
	WIDGET.newKey{name="V",		x=760,y=540,w=80,color="lH",font=50,code=pressKey(16)},
	WIDGET.newKey{name="I3",	x=840,y=540,w=80,color="H",font=50,code=pressKey(26)},
	WIDGET.newKey{name="C",		x=920,y=540,w=80,color="H",font=50,code=pressKey(27)},
	WIDGET.newKey{name="rnd",	x=1000,y=540,w=80,color="R",font=25,code=pressKey"="},

	WIDGET.newKey{name="W",		x=120,y=620,w=80,color="lH",font=50,code=pressKey(17)},
	WIDGET.newKey{name="X",		x=200,y=620,w=80,color="lH",font=50,code=pressKey(18)},
	WIDGET.newKey{name="J5",	x=280,y=620,w=80,color="lH",font=50,code=pressKey(19)},
	WIDGET.newKey{name="L5",	x=360,y=620,w=80,color="lH",font=50,code=pressKey(20)},
	WIDGET.newKey{name="R",		x=440,y=620,w=80,color="lH",font=50,code=pressKey(21)},
	WIDGET.newKey{name="Y",		x=520,y=620,w=80,color="lH",font=50,code=pressKey(22)},
	WIDGET.newKey{name="N",		x=600,y=620,w=80,color="lH",font=50,code=pressKey(23)},
	WIDGET.newKey{name="H",		x=680,y=620,w=80,color="lH",font=50,code=pressKey(24)},
	WIDGET.newKey{name="I5",	x=760,y=620,w=80,color="lH",font=50,code=pressKey(25)},
	WIDGET.newKey{name="I2",	x=840,y=620,w=80,color="dH",font=50,code=pressKey(28)},
	WIDGET.newKey{name="O1",	x=920,y=620,w=80,color="dH",font=50,code=pressKey(29)},


	WIDGET.newButton{name="copy",x=1140,y=460,w=170,h=80,color="lR",font=40,code=pressKey"cC",hide=function()return #BAG==0 end},
	WIDGET.newButton{name="paste",x=1140,y=550,w=170,h=80,color="lB",font=40,code=pressKey"cV"},
	WIDGET.newButton{name="back",x=1140,y=640,w=170,h=80,font=40,code=backScene},
}

return scene