-- Not UFO in the sky, but an ultra fold in Neovim.
-- https://github.com/kevinhwang91/nvim-ufo
return {
  "kevinhwang91/nvim-ufo",
  dependencies = "kevinhwang91/promise-async",
  config = function()
    vim.o.foldcolumn = "1"
    vim.o.foldlevel = 99
    vim.o.foldlevelstart = 99
    vim.o.foldenable = true

    require("ufo").setup({
      provider_selector = function(bufnr, filetype, bufftype)
        return { "lsp", "indent" }
      end,
    })
  end,
  keys = {
    {
      "zR",
      function()
        require("ufo").openAllFolds()
      end,
      desc = "Open all folds",
    },
    {
      "zM",
      function()
        require("ufo").closeAllFolds()
      end,
      desc = "Close all folds",
    },
    {
      "zK",
      function()
        local winid = require("ufo").peekFoldedLinesUnderCursor()
        if not winid then
          vim.lsp.buf.hover()
        end
      end,
      desc = "Peek fold",
    },
  },
}