local M = {
  event = "InsertEnter",
  module = "cmp",
  requires = {
    { "hrsh7th/cmp-nvim-lsp", module = "cmp_nvim_lsp" },
    "hrsh7th/cmp-buffer",
    "hrsh7th/cmp-emoji",
    "hrsh7th/cmp-cmdline",
    "dmitmel/cmp-cmdline-history",
    "hrsh7th/cmp-path",
    "saadparwaiz1/cmp_luasnip",
    "hrsh7th/cmp-nvim-lsp-signature-help",
  },
}

function M.config()
  vim.o.completeopt = "menuone,noselect"

  -- Setup nvim-cmp.
  local cmp = require("cmp")

  cmp.setup({
    completion = {
      completeopt = "menu,menuone,noinsert",
    },
    snippet = {
      expand = function(args)
        require("luasnip").lsp_expand(args.body)
      end,
    },
    mapping = cmp.mapping.preset.insert({
      ["<C-b>"] = cmp.mapping.scroll_docs(-4),
      ["<C-f>"] = cmp.mapping.scroll_docs(4),
      ["<C-Space>"] = cmp.mapping.complete(),
      ["<C-e>"] = cmp.mapping.close(),
      ["<CR>"] = cmp.mapping.confirm({ select = true }),
    }),
    sources = cmp.config.sources({
      { name = "nvim_lsp" },
      { name = "luasnip" },
      { name = "buffer" },
      { name = "path" },
      { name = "emoji" },
      { name = "nvim_lsp_signature_help" },
    }),
    formatting = {
      format = require("plugins.lsp.kind").cmp_format(),
    },
    experimental = {
      ghost_text = {
        hl_group = "LspCodeLens",
      },
    },
  })

  local cmp_autopairs = require("nvim-autopairs.completion.cmp")
  cmp.event:on("confirm_done", cmp_autopairs.on_confirm_done({ map_char = { tex = "" } }))
end

return M