nixos/home/programs/nvim/autocmds.nix

{
  programs.nixvim = {
    autoGroups = {
      auto_quit.clear = true;
      autoview.clear = true;
      bufferline.clear = true;
      checktime.clear = true;
      create_dir.clear = true;
      editorconfig_filetype.clear = true;
      file_user_events.clear = true;
      highlighturl.clear = true;
      highlightyank.clear = true;
      large_buf_settings.clear = true;
      q_close_windows.clear = true;
      terminal_settings.clear = true;
      unlist_quickfix.clear = true;
    };

    autoCmd = [
      # auto_quit
      # https://github.com/AstroNvim/AstroNvim/blob/v4.7.7/lua/astronvim/plugins/_astrocore_autocmds.lua#L18-L46
      {
        desc =
          "Quit neovim if more than one window is open and only sidebar windows are list";
        event = "BufEnter";
        group = "auto_quit";

        callback.__raw = ''
          function()
            local wins = vim.api.nvim_tabpage_list_wins(0)
            -- Both neo-tree and aerial will auto-quit if there is only a single window left
            if #wins <= 1 then return end
            local sidebar_fts = { aerial = true, ["neo-tree"] = true }
            for _, winid in ipairs(wins) do
              if vim.api.nvim_win_is_valid(winid) then
                local bufnr = vim.api.nvim_win_get_buf(winid)
                local filetype = vim.bo[bufnr].filetype
                -- If any visible windows are not sidebars, early return
                if not sidebar_fts[filetype] then
                  return
                -- If the visible window is a sidebar
                else
                  -- only count filetypes once, so remove a found sidebar from the detection
                  sidebar_fts[filetype] = nil
                end
              end
            end
            if #vim.api.nvim_list_tabpages() > 1 then
              vim.cmd.tabclose()
            else
              vim.cmd.qall()
            end
          end
        '';
      }

      # autoview
      # https://github.com/AstroNvim/AstroNvim/blob/v4.7.7/lua/astronvim/plugins/_astrocore_autocmds.lua#L49-L70
      {
        desc = "Save view with mkview for real files";
        event = [ "BufWinLeave" "BufWritePost" "WinLeave" ];
        group = "autoview";

        callback.__raw = ''
          function(event)
            if vim.b[event.buf].view_activated then vim.cmd.mkview { mods = { emsg_silent = true } } end
          end
        '';
      }
      {
        desc =
          "Try to load file view if available and enable view saving for real files";
        event = "BufWinEnter";
        group = "autoview";

        callback.__raw = ''
          function(event)
            if not vim.b[event.buf].view_activated then
              local filetype = vim.bo[event.buf].filetype
              local buftype = vim.bo[event.buf].buftype
              local ignore_filetypes = { "gitcommit", "gitrebase", "svg", "hgcommit" }
              if buftype == "" and filetype and filetype ~= "" and not vim.tbl_contains(ignore_filetypes, filetype) then
                vim.b[event.buf].view_activated = true
                vim.cmd.loadview { mods = { emsg_silent = true } }
              end
            end
          end
        '';
      }

      # checktime
      # https://github.com/AstroNvim/AstroNvim/blob/v4.7.7/lua/astronvim/plugins/_astrocore_autocmds.lua#L118-L122
      {
        desc = "Check if buffers changed on editor focus";
        event = [ "FocusGained" "TermClose" "TermLeave" ];
        group = "checktime";
        command = "checktime";
      }

      # editorconfig_filetype
      # https://github.com/AstroNvim/AstroNvim/blob/v4.7.7/lua/astronvim/plugins/_astrocore_autocmds.lua#L135-L144
      {
        desc =
          "Configure editorconfig after filetype detection to override `ftplugin`s";
        event = "FileType";
        group = "editorconfig_filetype";

        callback.__raw = ''
          function(args)
            if vim.F.if_nil(vim.b.editorconfig, vim.g.editorconfig, true) then
              local editorconfig_avail, editorconfig = pcall(require, "editorconfig")
              if editorconfig_avail then editorconfig.config(args.buf) end
            end
          end
        '';
      }

      # highlightyank
      # https://github.com/AstroNvim/AstroNvim/blob/v4.7.7/lua/astronvim/plugins/_astrocore_autocmds.lua#L206-L211
      {
        desc = "Highlight yanked text";
        event = "TextYankPost";
        group = "highlightyank";
        pattern = "*";

        callback.__raw = ''
          function()
            vim.highlight.on_yank()
          end
        '';
      }

      # q_close_windows
      # https://github.com/AstroNvim/AstroNvim/blob/v4.7.7/lua/astronvim/plugins/_astrocore_autocmds.lua#L242-L255
      {
        desc = "Make q close help, man, quickfix, dap floats";
        event = "BufWinEnter";
        group = "q_close_windows";

        callback.__raw = ''
          function(event)
            if vim.tbl_contains({ "help", "nofile", "quickfix" }, vim.bo[event.buf].buftype) then
              vim.keymap.set("n", "q", "<Cmd>close<CR>", {
                desc = "Close window",
                buffer = event.buf,
                silent = true,
                nowait = true,
              })
            end
          end
        '';
      }

      # terminal_settings
      # https://github.com/AstroNvim/AstroNvim/blob/v4.7.7/lua/astronvim/plugins/_astrocore_autocmds.lua#L258-L266
      {
        desc = "Disable line number/fold column/sign column for terminals";
        event = "TermOpen";
        group = "terminal_settings";

        callback.__raw = ''
          function()
            vim.opt_local.number = false
            vim.opt_local.relativenumber = false
            vim.opt_local.foldcolumn = "0"
            vim.opt_local.signcolumn = "no"
          end
        '';
      }

      # unlist_quickfix
      # https://github.com/AstroNvim/AstroNvim/blob/v4.7.7/lua/astronvim/plugins/_astrocore_autocmds.lua#L270-L275
      {
        desc = "Unlist quickfix buffers";
        event = "FileType";
        group = "unlist_quickfix";
        pattern = "qf";

        callback.__raw = ''
          function()
            vim.opt_local.buflisted = false
          end
        '';
      }
    ];
  };
}