local cmp = require 'cmp'
local lspkind = require('lspkind')

--lspkind.init({
---- disables text annotations
----with_text = false,
----with_text = true,

---- defines how annotations are shown
---- default: symbol
---- options: 'text', 'text_symbol', 'symbol_text', 'symbol'
--mode = 'symbol',

---- default symbol map
---- can be either 'default' or 'codicons'
--preset = 'default',

---- override preset symbols
---- default: {}
----symbol_map = {
----Method = 'm',
----Function = 'f',
----Text = 'txt',
----Constructor = 'new',
----Variable = 'var',
----Class = 'cls',
----Interface = 'iface',
----Module = 'mod',
----Property = 'prop',
----Unit = 'unit',
----Value = 'val',
----Enum = 'enum',
----Keyword = 'kw',
----Snippet = 'sn',
----Color = 'color',
----File = 'file',
----Folder = 'fold',
----EnumMember = 'enum',
----Constant = 'const',
----Struct = 'struct',
----},
--})


cmp.setup({
  snippet = {
    -- REQUIRED - you must specify a snippet engine
    expand = function(args)
      require('snippy').expand_snippet(args.body) -- For `snippy` users.
      -- vim.snippet.expand(args.body) -- For native neovim snippets (Neovim v0.10+)
    end,
  },
  formatting = {
    format = lspkind.cmp_format({
      mode = 'symbol_text', -- show only symbol annotations
      maxwidth = 50,        -- prevent the popup from showing more than provided characters (e.g 50 will not show more than 50 characters)
      -- can also be a function to dynamically calculate max width such as
      -- maxwidth = function() return math.floor(0.45 * vim.o.columns) end,
      ellipsis_char = '...',    -- when popup menu exceed maxwidth, the truncated part would show ellipsis_char instead (must define maxwidth first)
      show_labelDetails = true, -- show labelDetails in menu. Disabled by default

      -- The function below will be called before any actual modifications from lspkind
      -- so that you can provide more controls on popup customization. (See [#30](https://github.com/onsails/lspkind-nvim/pull/30))
      before = function(entry, vim_item)
        return vim_item
      end
    })
  },
  window = {
    -- completion = cmp.config.window.bordered(),
    -- documentation = cmp.config.window.bordered(),
  },

  mapping = cmp.mapping.preset.insert {
    ['<C-d>'] = cmp.mapping.scroll_docs(-4),
    ['<C-f>'] = cmp.mapping.scroll_docs(4),
    ['<C-Space>'] = cmp.mapping.complete {},
    ['<CR>'] = cmp.mapping.confirm {
      behavior = cmp.ConfirmBehavior.Replace,
      select = true,
    },
    ['<Tab>'] = cmp.mapping(function(fallback)
      if cmp.visible() then
        cmp.select_next_item()
        --elseif luasnip.expand_or_jumpable() then
        --luasnip.expand_or_jump()
      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' }),
  },
  sources = cmp.config.sources({
    { name = 'nvim_lsp' },
    -- { name = 'vsnip' }, -- For vsnip users.
    -- { name = 'luasnip' }, -- For luasnip users.
    -- { name = 'ultisnips' }, -- For ultisnips users.
    { name = 'snippy' }, -- For snippy users.
    --}, {
    { name = 'buffer' },
  })
})