-- gemini-integration.lua
-- Registers the active Neovim instance for the Antigravity MCP Server
vim.api.nvim_create_autocmd({"VimEnter", "FocusGained"}, {
    callback = function()
        -- Only register if Neovim has an active UI attached (ignore headless/embedded instances)
        if #vim.api.nvim_list_uis() > 0 then
            local server_name = vim.v.servername
            if server_name then
                local home = os.getenv("HOME")
                if not home then
                    home = os.getenv("USERPROFILE")
                end
                if home then
                    os.execute("mkdir -p " .. home .. "/.gemini")
                    local path = home .. "/.gemini/active_nvim.txt"
                    local f = io.open(path, "w")
                    if f then
                        f:write(server_name)
                        f:close()
                    end
                end
            end
        end
    end,
    desc = "Register active Neovim instance for Gemini CLI",
})