vim.o.foldcolumn = "auto:9"
vim.o.foldlevel = 99
vim.o.foldlevelstart = 99
vim.o.foldenable = true
vim.o.fillchars = [[eob: ,fold: ,foldopen:󰅀,foldsep:│,foldclose:󰅂]]

vim.keymap.set('n', 'zR', require('ufo').openAllFolds)
vim.keymap.set('n', 'zM', require('ufo').closeAllFolds)

require('ufo').setup({
    open_fold_hl_timeout = 400,
    close_fold_kinds = { "imports", "comment" },
    preview = {
      win_config = {
        border = { "", "─", "", "", "", "─", "", "" },
        winblend = 0,
      },
      mappings = {
        scrollU = "<C-u>",
        scrollD = "<C-d>",
        jumpTop = "[",
        jumpBot = "]",
      },
    },
    provider_selector = function(bufnr, filetype, buftype)
        return {'treesitter', 'indent'}
    end
})