local cmp = require("cmp")
vim.opt.completeopt = { "menu", "menuone", "noinsert", "noselect" }
cmp.setup({
  snippet = {
    expand = function(args)
      require('luasnip').lsp_expand(args.body)
    end,
  },
  sorting = {
    comparators = {
      cmp.config.compare.offset,
      cmp.config.compare.exact,
      cmp.config.compare.recently_used,
      cmp.config.compare.kind,
      cmp.config.compare.sort_text,
      cmp.config.compare.length,
      cmp.config.compare.order,
    },
  },
  window = {
    completion = cmp.config.window.bordered(),
    documentation = cmp.config.window.bordered(),
  },
  mapping = cmp.mapping.preset.insert({
    ["<Tab>"] = cmp.mapping(function(fallback)
      if cmp.visible() then
        cmp.select_next_item()
      else
        fallback()
      end
    end, { "i", "s" }),

    ["<S-Tab>"] = cmp.mapping(function(fallback)
      if cmp.visible() then
        cmp.select_prev_item()
      else
        fallback()
      end
    end, { "i", "s" }),

    ["<C-b>"] = cmp.mapping.scroll_docs(-4),
    ["<C-f>"] = cmp.mapping.scroll_docs(4),
    ["<C-Space>"] = cmp.mapping.complete(),
    ["<C-e>"] = cmp.mapping.abort(),
    ["<C-Left>"] = cmp.mapping.abort(),
    ["<CR>"] = cmp.mapping.confirm({ select = false }),
  }),
  sources = cmp.config.sources({
    { name = 'nvim_lsp' },
    { name = 'luasnip' },
    { name = 'buffer' },
    { name = 'path' },
    { name = 'nvim_lua' },
    { name = 'emoji' },
  }),
  highlight = {
    default = "Subtle"
  },
})