local cmp = require('cmp')

cmp.setup({
  snippet = {
    expand = function(args)
      require('luasnip').lsp_expand(args.body)
    end,
  },

  mapping = cmp.mapping.preset.insert({
    ['<C-y>'] = cmp.mapping.confirm({select = true}),
    ['<C-Space>'] = cmp.mapping.complete(),
    ['<C-d>'] = cmp.mapping.scroll_docs(-4),
    ['<C-f>'] = cmp.mapping.scroll_docs(4),
  }),

  sources = cmp.config.sources({
    {name = 'nvim_lsp'},
    {name = 'luasnip'},
  }, {
    {name = 'buffer'},
    {name = 'path'},
  }),

  formatting = {
    format = function(entry, vim_item)
      vim_item.menu = ({
        buffer = '[buf]',
        nvim_lsp = '[LSP]',
        path = '[path]',
      })[entry.source.name]
      return vim_item
    end
  }
})