local Type, Version = "MDTSpellButton", 1
local AceGUI = LibStub and LibStub("AceGUI-3.0", true)

local width,height = 248,32
local tinsert,SetPortraitToTexture,SetPortraitTextureFromCreatureDisplayID,GetItemQualityColor,MouseIsOver = table.insert,SetPortraitToTexture,SetPortraitTextureFromCreatureDisplayID,GetItemQualityColor,MouseIsOver

local methods = {
    ["OnAcquire"] = function(self)
        self:SetWidth(width);
        self:SetHeight(height);
    end,
    ["Initialize"] = function(self)
        self.callbacks = {}

        function self.callbacks.OnClickNormal(_, mouseButton)
            if(IsControlKeyDown())then

            elseif(IsShiftKeyDown()) then
                if DEFAULT_CHAT_FRAME.editBox and DEFAULT_CHAT_FRAME.editBox:IsVisible() then
                    local old = DEFAULT_CHAT_FRAME.editBox:GetText()
                    local link = GetSpellLink(self.spellId) or ""
                    DEFAULT_CHAT_FRAME.editBox:SetText(old .. link)
                end
            else

            end
        end

        function self.callbacks.OnEnter()
            GameTooltip:SetOwner(self.frame, "ANCHOR_BOTTOMLEFT",0,self.frame:GetHeight())
            GameTooltip:SetSpellByID(self.spellId)
            if self.interruptible then
                local interruptible = CreateTextureMarkup("Interface\\EncounterJournal\\UI-EJ-Icons", 64, 64, 32, 32, 0.75, 0.88, 0, 0.5,0,0).. "Interruptible"
                GameTooltip:AddLine(interruptible)
            end
            GameTooltip:Show()
        end

        function self.callbacks.OnLeave()
            GameTooltip:Hide()
        end

        function self.callbacks.OnKeyDown(self, key)
            if (key == "ESCAPE") then
                --
            end
        end
        function self.callbacks.OnDragStart()
            --
        end

        function self.callbacks.OnDragStop()
            --
        end

        self.frame:SetScript("OnClick", self.callbacks.OnClickNormal);
        self.frame:SetScript("OnKeyDown", self.callbacks.OnKeyDown);
        self.frame:SetScript("OnEnter", self.callbacks.OnEnter);
        self.frame:SetScript("OnLeave", self.callbacks.OnLeave);
        self.frame:EnableKeyboard(false);
        self.frame:SetMovable(true);
        self.frame:RegisterForDrag("LeftButton");
        self.frame:SetScript("OnDragStart", self.callbacks.OnDragStart);
        self.frame:SetScript("OnDragStop", self.callbacks.OnDragStop);
        self:Enable();
    end,
    ["SetSpell"] = function(self, spellId,spellData)
        self.spellId = spellId
        local name,_,icon = GetSpellInfo(spellId)
        self.icon:SetTexture(icon)
        if IsAddOnLoaded("AddOnSkins") then
            if AddOnSkins then
                local AS = unpack(AddOnSkins)
                AS:SkinTexture(self.icon)
            end
        end
        self.title:SetText(name);
        if spellData.interruptible then
            self.interruptible = true
            self.interruptibleIcon:Show()
        else
            self.interruptible = false
            self.interruptibleIcon:Hide()
        end
    end,
    ["Disable"] = function(self)
        self.background:Hide();
        self.frame:Disable();
    end,
    ["Enable"] = function(self)
        self.background:Show();
        self.frame:Enable();
    end,
    ["Pick"] = function(self)
        self.frame:LockHighlight();
    end,
    ["ClearPick"] = function(self)
        self.frame:UnlockHighlight();
    end,
    ["SetIndex"] = function(self, index)
        self.index = index
    end,
    ["SetTitle"] = function(self, title)
        self.titletext = title;
        self.title:SetText(title);
    end,

}

--Constructor
local function Constructor()
    local name = "MDTSpellButton"..AceGUI:GetNextWidgetNum(Type);
    local button = CreateFrame("BUTTON", name, UIParent, "OptionsListButtonTemplate");
    button:SetHeight(height);
    button:SetWidth(width);
    button.dgroup = nil;
    button.data = {};

    local background = button:CreateTexture(nil, "BACKGROUND");
    button.background = background;
    background:SetTexture("Interface\\BUTTONS\\UI-Listbox-Highlight2.blp");
    background:SetBlendMode("ADD");
    background:SetVertexColor(0.5, 0.5, 0.5, 0.25);
    background:SetPoint("TOP", button, "TOP");
    background:SetPoint("BOTTOM", button, "BOTTOM");
    background:SetPoint("LEFT", button, "LEFT");
    background:SetPoint("RIGHT", button, "RIGHT");

    local icon = button:CreateTexture(nil, "OVERLAY");
    button.icon = icon;
    icon:SetWidth(height);
    icon:SetHeight(height);
    icon:SetPoint("LEFT", button, "LEFT");

    local interruptibleIcon = button:CreateTexture(nil, "OVERLAY");
    interruptibleIcon:SetWidth(height*0.8);
    interruptibleIcon:SetHeight(height*0.8);
    interruptibleIcon:SetTexture("Interface\\EncounterJournal\\UI-EJ-Icons")
    interruptibleIcon:SetTexCoord(0.75,0,0.75,0.5,0.88,0,0.88,0.5)
    interruptibleIcon:SetPoint("BOTTOMLEFT", button.icon, "BOTTOMRIGHT",0,-5);
    interruptibleIcon:Hide()


    local title = button:CreateFontString(nil, "OVERLAY", "GameFontNormal");
    button.title = title;
    title:SetHeight(14);
    title:SetJustifyH("LEFT");
    title:SetPoint("TOP", button, "TOP", 0, -2);
    title:SetPoint("LEFT", icon, "RIGHT", 2, 0);
    title:SetPoint("RIGHT", button, "RIGHT");

    button.description = {};

    button:SetScript("OnEnter", function()

    end);
    button:SetScript("OnLeave", function()

    end);

    local widget = {
        frame = button,
        title = title,
        icon = icon,
        interruptibleIcon = interruptibleIcon,
        background = background,
        type = Type
    }
    for method, func in pairs(methods) do
        widget[method] = func
    end

    return AceGUI:RegisterAsWidget(widget);
end

AceGUI:RegisterWidgetType(Type, Constructor, Version)