-- AltSystem Core
-- Addon initialization, slash command registration, and TRP3 integration.

AltSystem = AltSystem or {}
AltSystem.State = {
    selectedSkillIndex   = 1,
    selectedItemIndex    = 1,  -- 1 = No item
    selectedDefenseIndex = 1,  -- 1 = Base armor
    shieldEnabled        = false,
}

-- Initialization on ADDON_LOADED
local frame = CreateFrame("Frame")
frame:RegisterEvent("ADDON_LOADED")
frame:RegisterEvent("PLAYER_LOGIN")

frame:SetScript("OnEvent", function(self, event, arg1)
    if event == "ADDON_LOADED" and arg1 == "AltSystem" then
        AltSystem:Init()
    elseif event == "PLAYER_LOGIN" then
        AltSystem:RegisterTRP3Button()
        AltSystem:RegisterMinimapButton()
    end
end)

function AltSystem:Init()
    -- Register slash command /altsystem
    SLASH_ALTSYSTEM1 = "/altsystem"
    SlashCmdList["ALTSYSTEM"] = function()
        AltSystem:ToggleWindow()
    end

    print("|cff00ccffAltSystem|r loaded. Type /altsystem to open.")
end

function AltSystem:ToggleWindow()
    if AltSystem.MainFrame then
        if AltSystem.MainFrame:IsShown() then
            AltSystem.MainFrame:Hide()
        else
            AltSystem.MainFrame:Show()
        end
    end
end

-- TRP3 toolbar button registration
function AltSystem:RegisterTRP3Button()
    if TRP3_API and TRP3_API.toolbar then
        local toolbarButton = {
            id = "altsystem_toolbar_btn",
            icon = "Interface\\Icons\\INV_Misc_Dice_02",
            tooltip = "AltSystem",
            tooltipSub = "Open the AltSystem rolling window",
            onClick = function()
                AltSystem:ToggleWindow()
            end,
        }
        TRP3_API.toolbar.toolbarAddButton(toolbarButton)
    end
end

-- Minimap button using LibDBIcon (lightweight fallback if not available)
function AltSystem:RegisterMinimapButton()
    -- Simple minimap button without external libraries
    local minimapButton = CreateFrame("Button", "AltSystemMinimapButton", Minimap)
    minimapButton:SetSize(32, 32)
    minimapButton:SetFrameStrata("MEDIUM")
    minimapButton:SetFrameLevel(8)
    minimapButton:SetPoint("TOPLEFT", Minimap, "TOPLEFT", 2, -2)

    local icon = minimapButton:CreateTexture(nil, "ARTWORK")
    icon:SetTexture("Interface\\Icons\\INV_Misc_Dice_02")
    icon:SetSize(20, 20)
    icon:SetPoint("CENTER")

    local border = minimapButton:CreateTexture(nil, "OVERLAY")
    border:SetTexture("Interface\\Minimap\\MiniMap-TrackingBorder")
    border:SetSize(54, 54)
    border:SetPoint("TOPLEFT", -2, 2)

    minimapButton:SetHighlightTexture("Interface\\Minimap\\UI-Minimap-ZoomButton-Highlight")

    minimapButton:SetScript("OnClick", function()
        AltSystem:ToggleWindow()
    end)

    minimapButton:SetScript("OnEnter", function(self)
        GameTooltip:SetOwner(self, "ANCHOR_LEFT")
        GameTooltip:AddLine("AltSystem")
        GameTooltip:AddLine("Click to toggle the rolling window", 1, 1, 1)
        GameTooltip:Show()
    end)

    minimapButton:SetScript("OnLeave", function()
        GameTooltip:Hide()
    end)
end