local cmp = require("cmp")

cmp.setup {
  snippet = {
    expand = function(args)
      vim.fn["UltiSnips#Anon"](args.body)
    end,
  },
  mapping = cmp.mapping.preset.insert {
    ["<Tab>"] = function(fallback)
      if cmp.visible() then
        cmp.select_next_item()
      else
        fallback()
      end
    end,
    ["<S-Tab"] = function(fallback)
      if cmp.visible() then
        cmp.select_prev_item()
      else
        fallback()
      end
    end,
    ["<C-u>"] = cmp.mapping.scroll_docs(-4),
    ["<C-d>"] = cmp.mapping.scroll_docs(4),
    ["<C-Space>"] = cmp.mapping.complete(),
    ["<C-e>"] = cmp.mapping.abort(),
    ["<CR>"] = cmp.mapping.confirm({ select = false }),
  },
  sources = cmp.config.sources {
    { name = "nvim_lsp" },
    { name = "ultisnips" },
    { name = "buffer" },
    { name = "path" },
  }
}