vim.o.completeopt = "menuone,noselect"
-- Avoid having a "Pattern not found" message
vim.cmd("set shortmess+=c")

local cmp = require'cmp'
local snippy = require('snippy')

cmp.setup({
  window = {
    completion = cmp.config.window.bordered(),
    documentation = cmp.config.window.bordered(),
  },
  snippet = {
    expand = function(args)
      snippy.expand_snippet(args.body)
    end,
  },
  mapping = cmp.mapping.preset.insert({
    ['<C-n>'] = cmp.mapping.select_next_item(),
    ['<C-p>'] = cmp.mapping.select_prev_item(),
    ['<C-Space>'] = cmp.mapping.confirm({ select = true }),
    ['<C-e>'] = cmp.mapping.abort(),
  }),
  sources = cmp.config.sources({
    { name = 'nvim_lsp' },
    { name = 'async_path' },
    { name = 'snippy' },
  }, {
    { name = 'buffer' },
  })
})

snippy.setup({
    mappings = {
        is = {
            ['<Tab>'] = 'expand_or_advance',
            ['<S-Tab>'] = 'previous',
        },
    },
})

require('lspsaga').setup({})

-- require'compe'.setup {
--   enabled = true;
--   autocomplete = true;
--   debug = false;
--   min_length = 1;
--   preselect = 'always';
--   throttle_time = 80;
--   source_timeout = 200;
--   incomplete_delay = 400;
--   max_abbr_width = 100;
--   max_kind_width = 100;
--   max_menu_width = 100;
--   documentation = true;

--   source = {
--     path = true;
--     buffer = false;
--     calc = false;
--     vsnip = false; -- Could be used if I want to start using snippets.
--     nvim_lsp = true;
--     nvim_lua = true;
--     tags = true;
--     snippets_nvim = true;
--     treesitter = true;
--   };
-- }

-- vim.cmd([[
-- autocmd FileType ocaml call compe#setup({
-- \ 'preselect': 'disable'
-- \ }, 0)
-- ]])

-- local t = function(str)
--   return vim.api.nvim_replace_termcodes(str, true, true, true)
-- end

-- _G.comp_jump_if_avail = function()
--   if vim.fn.pumvisible() == 1 then
--     return t "<C-n>"
--   end
-- end
-- _G.comp_jump_prev_if_avail = function()
--   if vim.fn.pumvisible() == 1 then
--     return t "<C-p>"
--   end
-- end
-- _G.tab_complete = function()
--   if vim.fn.pumvisible() == 1 then
--     return vim.fn['compe#confirm']('')
--   else
--     return t "<Tab>"
--   end
-- end
-- _G.enter_complete = function()
--   if vim.bo.filetype == "ocaml" then
--     return t "<CR>"
--   elseif vim.fn.pumvisible() == 1 then
--     return vim.fn['compe#confirm']('')
--   else
--     return t "<CR>"
--   end
-- end

-- vim.api.nvim_set_keymap("i", "<C-n>", "v:lua.comp_jump_if_avail()", {expr = true})
-- vim.api.nvim_set_keymap("s", "<C-n>", "v:lua.comp_jump_if_avail()", {expr = true})
-- vim.api.nvim_set_keymap("i", "<C-e>", "v:lua.comp_jump_prev_if_avail()", {expr = true})
-- vim.api.nvim_set_keymap("s", "<C-e>", "v:lua.comp_jump_prev_if_avail()", {expr = true})
-- -- The next 4 funtcions don't work if compe doesn't automatically select the first option.
-- -- meaning  the preselect option has to be set to alwasy.
-- vim.api.nvim_set_keymap("i", "<Tab>", "v:lua.tab_complete()", {expr = true})
-- vim.api.nvim_set_keymap("s", "<Tab>", "v:lua.tab_complete()", {expr = true})
-- vim.api.nvim_set_keymap("i", "<CR>", "v:lua.enter_complete()", {expr = true})
-- vim.api.nvim_set_keymap("s", "<CR>", "v:lua.enter_complete()", {expr = true})