WoW addon that makes it easier to find alive target with the same name. `/lasttarget` in chat

LastTarget.lua

local lastTargetName = nil

-- Create a frame to capture events
local frame = CreateFrame("Frame")

-- Register the frame to listen to the ADDON_LOADED event and PLAYER_TARGET_CHANGED event
frame:RegisterEvent("ADDON_LOADED")
frame:RegisterEvent("PLAYER_TARGET_CHANGED")

-- Function to handle events
frame:SetScript("OnEvent", function(self, event, addonName)
    if event == "ADDON_LOADED" and addonName == "LastTarget" then
    elseif event == "PLAYER_TARGET_CHANGED" then
        local targetName = UnitName("target")
        
        -- If there is a valid target, store its name
        if targetName and targetName ~= "" then
            lastTargetName = targetName
        end
    end
end)

-- Function to create and show an input box with the target command
local function ShowTargetInputBox(targetName)
    -- Create an EditBox frame
    local editBox = CreateFrame("EditBox", "LastTargetEditBox", UIParent, "InputBoxTemplate")
    editBox:SetSize(300, 30) -- width, height
    editBox:SetPoint("CENTER") -- position in the middle of the screen
    editBox:SetAutoFocus(true) -- auto-focus the edit box
    editBox:SetText("/target " .. targetName) -- set the text to the target command
    editBox:HighlightText() -- highlight the text for easy copying

    -- Add a title to the input box
    local title = editBox:CreateFontString(nil, "OVERLAY", "GameFontNormal")
    title:SetPoint("BOTTOM", editBox, "TOP", 0, 5)
    title:SetText("Copy the command below:")

    -- Function to hide the input box when pressing Enter or Escape
    editBox:SetScript("OnEnterPressed", function(self)
        self:ClearFocus()
        self:Hide()
    end)
    editBox:SetScript("OnEscapePressed", function(self)
        self:ClearFocus()
        self:Hide()
    end)

    -- Show the edit box
    editBox:Show()
end

-- Register the slash command
SLASH_LASTTARGET1 = "/lasttarget"

SlashCmdList["LASTTARGET"] = function(msg)
    
    -- Check if there is a stored target name
    if lastTargetName then
        ShowTargetInputBox(lastTargetName)
    end
end