let g:compe = {}
let g:compe.enabled = v:true
let g:compe.autocomplete = v:true
let g:compe.debug = v:false
let g:compe.min_length = 1
let g:compe.preselect = 'enable'
let g:compe.throttle_time = 80
let g:compe.source_timeout = 200
let g:compe.incomplete_delay = 400
let g:compe.max_abbr_width = 100
let g:compe.max_kind_width = 100
let g:compe.max_menu_width = 100
let g:compe.documentation = v:true

let g:compe.source = {}
let g:compe.source.path = v:true
let g:compe.source.buffer = v:true
let g:compe.source.calc = v:true
let g:compe.source.nvim_lsp = v:true
let g:compe.source.nvim_lua = v:true
let g:compe.source.vsnip = v:false
let g:compe.source.luasnip = v:true

inoremap <silent><expr> <C-Space> compe#complete()
inoremap <silent><expr> <CR>      compe#confirm('<CR>')
inoremap <silent><expr> <C-e>     compe#close('<C-e>')
inoremap <silent><expr> <C-f>     compe#scroll({ 'delta': +4 })
inoremap <silent><expr> <C-d>     compe#scroll({ 'delta': -4 })

fun! LspLocationList()
    lua vim.lsp.diagnostic.set_loclist({open_loclist = false})
endfun

augroup alpha_lsp
    autocmd!
    autocmd! BufWrite,BufEnter,InsertLeave * :call LspLocationList()
augroup END

nnoremap <leader>vd :lua vim.lsp.buf.definition()<CR>
nnoremap <leader>vsh :lua vim.lsp.buf.signature_help()<CR>
nnoremap <leader>vh :lua vim.lsp.buf.hover()<CR>

" to test
nnoremap <leader>vi :lua vim.lsp.buf.implementation()<CR>
nnoremap <leader>vrn :lua vim.lsp.buf.rename()<CR>
nnoremap <leader>vca :lua vim.lsp.buf.code_action()<CR>
nnoremap <leader>vsd :lua vim.lsp.util.show_line_diagnostics(); vim.lsp.util.show_line_diagnostics()<CR>
nnoremap <leader>vn :lua vim.lsp.diagnostic.goto_next()<CR>

nnoremap <leader>vo :LspRestart<CR>


au Filetype php setl omnifunc=v:lua.vim.lsp.omnifunc
autocmd FileType go setlocal omnifunc=v:lua.vim.lsp.omnifunc

let g:completion_matching_strategy_list = ['exact', 'substring', 'fuzzy']

lua << EOF

local function on_attach()
    vim.api.nvim_set_keymap('n', 'K', ':lua vim.lsp.buf.hover()<cr>', {noremap = true})
end

local function setup_servers()
    require'lspinstall'.setup()
    local servers = require'lspinstall'.installed_servers()
    for _, server in pairs(servers) do
        require'lspconfig'[server].setup{ on_attach=on_attach}
    end
end

setup_servers()

require'lspinstall'.post_install_hook = function ()
    setup_servers()
    vim.cmd("bufdo e")
end

EOF