local gc=love.graphics
local ins=table.insert
local mStr=GC.mStr

local scene={}

local selected--if waiting for key
local keyList

local function _freshKeyList()
    keyList={}for i=0,20 do keyList[i]={}end
    for k,v in next,KEY_MAP.keyboard do
        ins(keyList[v],{COLOR.lB,k})
    end
    for k,v in next,KEY_MAP.joystick do
        ins(keyList[v],{COLOR.lR,k})
    end
end

function scene.sceneInit()
    selected=false
    _freshKeyList()
    BG.set('none')
end
function scene.sceneBack()
    FILE.save(KEY_MAP,'conf/key')
end

local forbbidenKeys={
    ["\\"]=true,
    ["return"]=true,
}
function scene.keyDown(key,isRep)
    if isRep then return end
    if key=="escape"then
        if selected then
            selected=false
        else
            SCN.back()
        end
    elseif key=="backspace"then
        if selected then
            for k,v in next,KEY_MAP.keyboard do
                if v==selected then
                    KEY_MAP.keyboard[k]=nil
                end
            end
            _freshKeyList()
            selected=false
            SFX.play('finesseError',.5)
        end
    elseif selected then
        if not forbbidenKeys[key]then
            KEY_MAP.keyboard[key]=selected
            _freshKeyList()
            selected=false
            SFX.play('reach',.5)
        end
    else
        WIDGET.keyPressed(key)
    end
end
function scene.gamepadDown(key)
    if key=="back"then
        if selected then
            for k,v in next,KEY_MAP.joystick do
                if v==selected then
                    KEY_MAP.joystick[k]=nil
                end
            end
            _freshKeyList()
            selected=false
            SFX.play('finesseError',.5)
        else
            SCN.back()
        end
    elseif selected then
        KEY_MAP.joystick[key]=selected
        _freshKeyList()
        selected=false
        SFX.play('reach',.5)
    else
        WIDGET.gamepadPressed(key)
    end
end

function scene.draw()
    setFont(20)
    gc.setColor(COLOR.Z)
    gc.printf(text.keySettingInstruction,540,620,500,'right')

    for i=0,20 do
        for j=1,#keyList[i]do
            local key=keyList[i][j]
            local font=#key[2]==1 and 40 or #key[2]<6 and 30 or 15
            setFont(font)
            mStr(key,
                (i>10 and 940 or 210)+100*j,
                (
                    i>10 and 60*(i-10)-23 or
                    i>0 and 60*i-23 or
                    667
                )-font*.7
            )
        end
    end

    if selected then
        gc.setLineWidth(3)
        gc.setColor(COLOR[TIME()%.26<.13 and'F'or'Y'])
        gc.rectangle('line',
            selected>10 and 910 or 270,
            selected>10 and 60*(selected-10)-50 or selected>0 and 60*selected-50 or 640,
            360,60
        )
    end
end

local function _setSel(i)
    if selected==i then
        selected=false
        SFX.play('rotate',.5)
    else
        selected=i
        SFX.play('lock',.5)
    end
end
scene.widgetList={
    WIDGET.newKey{name='a1',x=160,y=40,w=200,h=60,code=function()_setSel(1)end},
    WIDGET.newKey{name='a2',x=160,y=100,w=200,h=60,code=function()_setSel(2)end},
    WIDGET.newKey{name='a3',x=160,y=160,w=200,h=60,code=function()_setSel(3)end},
    WIDGET.newKey{name='a4',x=160,y=220,w=200,h=60,code=function()_setSel(4)end},
    WIDGET.newKey{name='a5',x=160,y=280,w=200,h=60,code=function()_setSel(5)end},
    WIDGET.newKey{name='a6',x=160,y=340,w=200,h=60,code=function()_setSel(6)end},
    WIDGET.newKey{name='a7',x=160,y=400,w=200,h=60,code=function()_setSel(7)end},
    WIDGET.newKey{name='a8',x=160,y=460,w=200,h=60,code=function()_setSel(8)end},
    WIDGET.newKey{name='a9',x=160,y=520,w=200,h=60,code=function()_setSel(9)end},
    WIDGET.newKey{name='a10',x=160,y=580,w=200,h=60,code=function()_setSel(10)end},

    WIDGET.newKey{name='a11',x=800,y=40,w=200,h=60,code=function()_setSel(11)end},
    WIDGET.newKey{name='a12',x=800,y=100,w=200,h=60,code=function()_setSel(12)end},
    WIDGET.newKey{name='a13',x=800,y=160,w=200,h=60,code=function()_setSel(13)end},
    WIDGET.newKey{name='a14',x=800,y=220,w=200,h=60,code=function()_setSel(14)end},
    WIDGET.newKey{name='a15',x=800,y=280,w=200,h=60,code=function()_setSel(15)end},
    WIDGET.newKey{name='a16',x=800,y=340,w=200,h=60,code=function()_setSel(16)end},
    WIDGET.newKey{name='a17',x=800,y=400,w=200,h=60,code=function()_setSel(17)end},
    WIDGET.newKey{name='a18',x=800,y=460,w=200,h=60,code=function()_setSel(18)end},
    WIDGET.newKey{name='a19',x=800,y=520,w=200,h=60,code=function()_setSel(19)end},
    WIDGET.newKey{name='a20',x=800,y=580,w=200,h=60,code=function()_setSel(20)end},

    WIDGET.newKey{name='restart',x=160,y=670,w=200,h=60,code=function()_setSel(0)end},

    WIDGET.newButton{name='back',x=1140,y=640,w=190,h=80,font=60,fText=CHAR.icon.back,code=backScene},
}

return scene