local cmp = require "cmp"
local luasnip = require "luasnip"

-- Snippets
require("luasnip/loaders/from_vscode").load {
  paths = {
    "~/.local/share/nvim/site/pack/packer/start/friendly-snippets",
    "~/.local/share/nvim/site/pack/packer/opt/friendly-snippets",
  },
}

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

cmp.setup {
  snippet = {
    expand = function(args)
      luasnip.lsp_expand(args.body)
    end,
  },
  formatting = {
    format = function(_, vim_item)
      vim_item.kind = ({
        Text = "",
        Method = "",
        Function = "",
        Constructor = "",
        Field = "",
        Variable = "",
        Class = "",
        Interface = "ﰮ",
        Module = "",
        Property = "",
        Unit = "",
        Value = "",
        Enum = "",
        Keyword = "",
        Snippet = "﬌",
        Color = "",
        File = "",
        Reference = "",
        Folder = "",
        EnumMember = "",
        Constant = "",
        Struct = "",
        Event = "",
        Operator = "ﬦ",
        TypeParameter = "",
      })[vim_item.kind]

      return vim_item
    end,
  },
  mapping = {
    ["<C-j>"] = cmp.mapping.select_next_item(),
    ["<C-k>"] = cmp.mapping.select_prev_item(),
    ["<C-d>"] = 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 { behavior = cmp.ConfirmBehavior.Replace, select = false },
    ["<Tab>"] = function(fallback)
      if cmp.visible() then
        cmp.select_next_item()
      elseif luasnip.expand_or_jumpable() then
        vim.fn.feedkeys(vim.api.nvim_replace_termcodes("<Plug>luasnip-expand-or-jump", true, true, true), "")
      else
        fallback()
      end
    end,
    ["<S-Tab>"] = function(fallback)
      if cmp.visible() then
        cmp.select_prev_item()
      elseif luasnip.jumpable(-1) then
        vim.fn.feedkeys(vim.api.nvim_replace_termcodes("<Plug>luasnip-jump-prev", true, true, true), "")
      else
        fallback()
      end
    end,
  },
  sources = {
    { name = "nvim_lua", max_item_count = 6 },
    { name = "nvim_lsp", max_item_count = 6 },
    { name = "buffer", max_item_count = 4 },
    { name = "luasnip", max_item_count = 4 },
    { name = "path", max_item_count = 2 },
  },
  experimental = {
    native_menu = false,
    ghost_text = true,
  },
}