local autocmd = vim.api.nvim_create_autocmd

-- autocmd({ "BufEnter", "QuitPre" }, {
--   nested = false,
--   callback = function(e)
--     local tree = require("nvim-tree.api").tree
--
--     -- Nothing to do if tree is not opened
--     if not tree.is_visible() then
--       return
--     end
--
--     local winCount = 0
--     for _, winId in ipairs(vim.api.nvim_list_wins()) do
--       if vim.api.nvim_win_get_config(winId).focusable then
--         winCount = winCount + 1
--       end
--     end
--
--     -- We want to quit and only one window besides tree is left
--     if e.event == "QuitPre" and winCount == 2 then
--       vim.api.nvim_cmd({ cmd = "qall" }, {})
--     end
--
--     -- :bd was probably issued an only tree window is left
--     -- Behave as if tree was closed (see `:h :bd`)
--     if e.event == "BufEnter" and winCount == 1 then
--       -- Required to avoid "Vim:E444: Cannot close last window"
--       vim.defer_fn(function()
--         -- close nvim-tree: will go to the last buffer used before closing
--         tree.toggle({ find_file = true, focus = true })
--         -- re-open nivm-tree
--         tree.toggle({ find_file = true, focus = false })
--       end, 10)
--     end
--   end,
-- })

autocmd("VimEnter", {
    callback = function()
        --NVIM_ENTER=1
        vim.cmd([[call chansend(v:stderr, "\033]1337;SetUserVar=NVIM_ENTER=MQ==\007")]])
    end,
})

autocmd("VimLeavePre", {
    callback = function()
        --NVIM_ENTER=0
        vim.cmd([[call chansend(v:stderr, "\033]1337;SetUserVar=NVIM_ENTER=MA==\007")]])
    end,
})

autocmd("VimLeave", {
    pattern = "*",
    command = "set guicursor=a:ver25",
})