local lsp = require('lspconfig')
local completion = require('completion')
local api = vim.api
local configs = require('lspconfig/configs')

--local functi
--" Set completeopt to have a better completion experience
api.nvim_command('set completeopt=longest,menuone,noinsert,noselect')
--" Use <Tab> and <S-Tab> to navigate through popup menu
api.nvim_command('inoremap <expr> <Tab>   pumvisible() ? "<C-n>" : "<Tab>"')
api.nvim_command('inoremap <expr> <S-Tab> pumvisible() ? "<C-p>" : "<S-Tab>"')
--" Avoid showing message extra message when using completion
api.nvim_command('set shortmess+=c')
--api.nvim_command('')


local mapper = function(mode, key, result)
  vim.api.nvim_buf_set_keymap(0, mode, key, "<cmd>lua "..result.."<cr>", {noremap = true, silent = true})
end


local custom_attach = function()
  completion.on_attach()
  -- Move cursor to the next and previous diagnostic
  mapper('n', '<leader>dn', 'vim.lsp.diagnostic.goto_next()')
  mapper('n', '<leader>dp', 'vim.lsp.diagnostic.goto_prev()')
end

lsp.pyls.setup{
  on_attach = custom_attach
}
lsp.tsserver.setup {on_attach = custom_attach}
lsp.jdtls.setup {on_attach = custom_attach,
        root_dir = lsp.util.root_pattern('.git', 'pom.xml', 'build.xml')
}
lsp.sumneko_lua.setup {on_attach = custom_attach}

--another lua config that does not work either
--lsp.sumneko_lua.setup{
    --on_attach=custom_attach,
    --settings = {
        --Lua = {
            --runtime = { version = "LuaJIT", path = vim.split(package.path, ';'), },
            --completion = { keywordSnippet = "Enable", },
            --diagnostics = { enable = true, globals = {
                --"vim", "describe", "it", "before_each", "after_each" },
            --},
            --workspace = {
                --library = {
                    --[vim.fn.expand("$VIMRUNTIME/lua")] = true,
                    --[vim.fn.expand("$VIMRUNTIME/lua/vim/lsp")] = true,
                --}
            --}
        --}
    --}
--}