nvim/lua/plugins/core.lua

local cmp = require("cmp")
local luasnip = require("luasnip")

return {
  {
    "LazyVim/LazyVim",
    opts = {
      colorscheme = "catppuccin",
    },
  },
  {
    "nvim-lualine/lualine.nvim",
    opts = {
      sections = {
        lualine_z = {},
      },
    },
  },
  {
    "nvim-neo-tree/neo-tree.nvim",
    opts = {
      window = {
        mappings = {
          ["l"] = "open",
        },
      },
    },
  },
  {
    "hrsh7th/nvim-cmp",
    dependencies = {
      "hrsh7th/cmp-emoji",
    },
    opts = function(_, opts)
      local has_words_before = function()
        unpack = unpack or table.unpack
        local line, col = unpack(vim.api.nvim_win_get_cursor(0))
        return col ~= 0 and vim.api.nvim_buf_get_lines(0, line - 1, line, true)[1]:sub(col, col):match("%s") == nil
      end

      opts.mapping = vim.tbl_extend("force", opts.mapping, {
        ["<C-k>"] = cmp.mapping.select_prev_item(),
        ["<C-j>"] = cmp.mapping.select_next_item(),
        -- ["<C-b>"] = cmp.mapping(cmp.mapping.scroll_docs(-1), { "i", "c" }),
        -- ["<C-f>"] = cmp.mapping(cmp.mapping.scroll_docs(1), { "i", "c" }),
        ["<C-Space>"] = cmp.mapping(cmp.mapping.complete(), { "i", "c" }),
        -- ["<C-e>"] = cmp.mapping({
        --   i = cmp.mapping.abort(),
        --   c = cmp.mapping.close(),
        -- }),
        -- Accept currently selected item. If none selected, `select` first item.
        -- Set `select` to `false` to only confirm explicitly selected items.
        ["<CR>"] = cmp.mapping.confirm({ select = false }),
        -- ["<Tab>"] = cmp.mapping(function(fallback)
        --   if cmp.visible() then
        --     cmp.select_next_item()
        --   elseif luasnip.expandable() then
        --     luasnip.expand()
        --   elseif luasnip.expand_or_jumpable() then
        --     luasnip.expand_or_jump()
        --   elseif check_backspace() then
        --     fallback()
        --   else
        --     fallback()
        --   end
        -- end, {
        --   "i",
        --   "s",
        -- }),
        -- ["<S-Tab>"] = cmp.mapping(function(fallback)
        --   if cmp.visible() then
        --     cmp.select_prev_item()
        --   elseif luasnip.jumpable(-1) then
        --     luasnip.jump(-1)
        --   else
        --     fallback()
        --   end
        -- end, {
        --   "i",
        --   "s",
        -- }),
        ["<Tab>"] = cmp.mapping(function(fallback)
          if cmp.visible() then
            cmp.select_next_item()
          -- You could replace the expand_or_jumpable() calls with expand_or_locally_jumpable()
          -- this way you will only jump inside the snippet region
          elseif luasnip.expand_or_jumpable() then
            luasnip.expand_or_jump()
          elseif has_words_before() then
            cmp.complete()
          else
            fallback()
          end
        end, { "i", "s" }),
        ["<S-Tab>"] = cmp.mapping(function(fallback)
          if cmp.visible() then
            cmp.select_prev_item()
          elseif luasnip.jumpable(-1) then
            luasnip.jump(-1)
          else
            fallback()
          end
        end, { "i", "s" }),
      })
      opts.window = {
        completion = cmp.config.window.bordered(),
        documentation = cmp.config.window.bordered(),
      }
      opts.preselect = cmp.PreselectMode.None
      opts.completion = {
        completeopt = "noselect",
      }

      -- opts.formatting = {
      --   fields = { "kind", "abbr", "menu" },
      --   -- format = function(entry, vim_item)
      --   --   -- vim_item.kind = kind_icons[vim_item.kind]
      --   --   vim_item.menu = ({
      --   --     nvim_lsp = "",
      --   --     nvim_lua = "",
      --   --     luasnip = "",
      --   --     buffer = "",
      --   --     path = "",
      --   --     emoji = "",
      --   --   })[entry.source.name]
      --   --   return vim_item
      --   -- end,
      -- }
      -- opts.confirm_opts = {
      --   behavior = cmp.ConfirmBehavior.Replace,
      --   select = false,
      -- }
    end,
  },
}