local refreshboundprayers
local infopart
local prayersheet

local function displaydefaulthelp(panel)
    local ll = vgui.Create("DLabel",panel)
    ll:Dock(FILL)
    ll:SetWrap(true)
    ll:SetDark(true)
    ll:SetText("Oh no! It looks like this dosen't have any help text yet!")
end

local function createprayericon(parrent,prayer,equiped,place)

    local width = ScrW()
    local height = ScrH()

    local ret = vgui.Create("DButton",parrent)
    ret:SetText(prayer)
    ret:SetWrap(true)
    ret:SetSize(64,64)
    local prayertbl = ART.GetPrayerByName(prayer)
    assert(prayertbl ~= nil, "Could not find an appropriate prayer!")
    if prayertbl.Paint then
        ret.Paint = prayertbl.Paint
    end
    if prayertbl.DoOnPanel then
        prayertbl.DoOnPanel(ret)
    end
    if equiped then
        ret.DoClick = function(self)
            self:Remove()
            ART.PrayerEquiped[place] = false
            refreshboundprayers()
            infopart:Remove()
            infopart = vgui.Create("DPanel")
            infopart:SetSize( (width / 4) - 10, height / 3)
            infopart:SetPos(0, height * 2 / 3)
            prayersheet:Add(infopart)
        end
    else
        ret:Droppable("PrayerBind")
        ret.PrayerName = prayer
        ret:SetSize(64,64)
        ret.DoClick = function(self)
            infopart:Remove()
            infopart = vgui.Create("DPanel")
            infopart:SetSize( (width / 4) - 10, height / 3)
            prayersheet:Add(infopart)
            local rettbl = ART.GetPrayerByName(prayer)
            if rettbl.DisplayHelp ~= nil then
                rettbl.DisplayHelp(infopart)
            else
                displaydefaulthelp(infopart)
            end
        end
    end
    return ret
end

local function createreceiver(parrent,num)
    local prayerbut = vgui.Create( "DPanel", parrent )
    local prayerlabel = vgui.Create("DLabel",prayerbut)
    prayerlabel:SetText( "F" .. num )
    prayerlabel.Paint = function( self, w, h ) end
    prayerlabel:SetWrap(true)
    prayerlabel:SetDark(true)
    prayerlabel:Dock(FILL)
    prayerbut:Dock(FILL)
    prayerbut:Receiver( "PrayerBind", function( self, tableOfDroppedPanels, isDropped, menuIndex, mouseX, mouseY )
        if not isDropped then return end
        local pname = tableOfDroppedPanels[1].PrayerName
        print("Prayer name:")
        print(pname)
        ART.PrayerEquiped[num] = pname
        print("Prayer bound to " .. num)
        prayerbut:Remove()
        createprayericon(parrent,pname,true,num)
    end)
end

local function displayboundprayers(panel)

    local width = ScrW()
    local height = ScrH()

    local prayerbindgrid = nil

    refreshboundprayers = function()

        if prayerbindgrid ~= nil then prayerbindgrid:Remove() end

        prayerbindgrid = vgui.Create("DGrid")
        prayerbindgrid:SetPos(height * (2 / 3),5)
        prayerbindgrid:SetSize((width / 4) - 20, height / 3)
        prayerbindgrid:SetColWide(64)
        prayerbindgrid:SetRowHeight(64)
        function prayerbindgrid:Paint(w,h)
            draw.RoundedBox( 8, 0, 0, w, h, Color( 0, 255, 0 ) )
        end

        for k,v in pairs(ART.PrayerEquiped) do
            local but = vgui.Create( "DPanel", prayerbindgrid )
            but:SetSize(64, 64)
            if v ~= false then
                createprayericon(but,v,true,k)
            else
                createreceiver(but,k)
            end
            prayerbindgrid:AddItem(but)
        end
        panel:Add(prayerbindgrid)
    end
    refreshboundprayers()
end

ART.RegisterInventorySheet(function()

    local width = ScrW()
    local height = ScrH()

    prayersheet = vgui.Create( "DListLayout")

    local prayergridscroll = vgui.Create("DScrollPanel")
    prayergridscroll:SetSize( (width / 4) - 20, height / 3 )
    prayergridscroll:SetPos( 5, 5 )
    prayersheet:Add(prayergridscroll)
    local prayergrid = vgui.Create( "DGrid", prayergridscroll )
    prayergrid:SetPos( 5 , 5 )
    prayergrid:Dock(FILL)

    prayergrid:SetCols( (width / 4) / 64 )
    prayergrid:SetColWide( 64 )
    prayergrid:SetRowHeight(64)
    prayergridscroll:AddItem(prayergrid)

    for k,v in pairs(ART.MyPrayer) do
        print("Displaying prayer:" .. k)
        print("Type:" .. type(k))
        if k == "" then
            ART.MyPrayer[k] = nil
        end
        local but = createprayericon(prayergrid,k,false,nil)
        prayergrid:AddItem(but)
    end

    displayboundprayers(prayersheet)

    infopart = vgui.Create("DPanel")
    infopart:SetSize( (width / 4) - 10, height / 3)
    infopart:SetPos(0, height * 2 / 3)
    prayersheet:Add(infopart)

    return "Prayers", prayersheet, "icon16/tick.png"
end)

hook.Add("Think","art_prayer_keybinds",function()
    local mapping = {
        KEY_F1,
        KEY_F2,
        KEY_F3,
        KEY_F4,
    }
    for k,v in pairs(mapping) do
        if input.IsKeyDown(v) and ART.PrayerEquiped[k] then
            ART.GetPrayerByName(ART.PrayerEquiped[k]).Pray()
        end
    end
end)