local nvim_lsp = require('lspconfig')

-- Use a loop to conveniently call 'setup' on multiple servers and
-- map buffer local keybindings when the language server attaches
local servers = {
	-- npm i -g bash-language-server
	-- TODO - don't run for sh files but have something else instead - shellcheck?
	'bashls',
	-- npm i -g vscode-langservers-extracted
	'cssls',
	-- npm install -g intelephense
	'intelephense',
	--   https://phpactor.readthedocs.io/en/master/usage/standalone.html
	'phpactor',
	-- npm install -g pyright
	'pyright',
	-- https://github.com/neovim/nvim-lspconfig/wiki
	-- 'tailwindcss',
	-- npm install -g  typescript typescript-language-server
	'tsserver',
	-- npm install -g vim-language-server
	'vimls',
	-- npm install -g vls
	'vuels',
	'yamlls',
}

-- Use an on_attach function to only map the following keys
-- after the language server attaches to the current buffer
local on_attach = function(client, bufnr)
	local function buf_set_keymap(...) vim.api.nvim_buf_set_keymap(bufnr, ...) end
	local function buf_set_option(...) vim.api.nvim_buf_set_option(bufnr, ...) end

  -- Enable completion triggered by <c-x><c-o>
  buf_set_option('omnifunc', 'v:lua.vim.lsp.omnifunc')
  -- Mappings.
  local opts = { noremap=true, silent=true }
  -- See `:help vim.lsp.*` for documentation on any of the below functions
  buf_set_keymap('n', 'gD', '<cmd>lua vim.lsp.buf.declaration()<CR>', opts)
  buf_set_keymap('n', 'gd', '<cmd>lua vim.lsp.buf.definition()<CR>', opts)
  buf_set_keymap('n', 'K', '<cmd>lua vim.lsp.buf.hover()<CR>', opts)
  buf_set_keymap('n', 'gi', '<cmd>lua vim.lsp.buf.implementation()<CR>', opts)
  buf_set_keymap('n', '<C-k>', '<cmd>lua vim.lsp.buf.signature_help()<CR>', opts)
  buf_set_keymap('n', '[d', '<cmd>lua vim.lsp.diagnostic.goto_prev()<CR>', opts)
  buf_set_keymap('n', ']d', '<cmd>lua vim.lsp.diagnostic.goto_next()<CR>', opts)
  buf_set_keymap('n', 'gr', '<cmd>lua vim.lsp.buf.references()<CR>', opts)
  buf_set_keymap('n', '<space>l', '<cmd>lua vim.lsp.diagnostic.set_loclist()<CR>', opts)
  buf_set_keymap('n', '<space>ca', '<cmd>lua vim.lsp.buf.code_action()<CR>', opts)
  buf_set_keymap('n', '<space>rn', '<cmd>lua vim.lsp.buf.rename()<CR>', opts)
  buf_set_keymap('n', '<space>e', '<cmd>lua vim.lsp.diagnostic.show_line_diagnostics()<CR>', opts)
  buf_set_keymap('n', '<space>D', '<cmd>lua vim.lsp.buf.type_definition()<CR>', opts)
  buf_set_keymap('n', '<space>f', '<cmd>lua vim.lsp.buf.formatting()<CR>', opts)
  -- buf_set_keymap('n', '<space>wa', '<cmd>lua vim.lsp.buf.add_workspace_folder()<CR>', opts)
  -- buf_set_keymap('n', '<space>wr', '<cmd>lua vim.lsp.buf.remove_workspace_folder()<CR>', opts)
  -- buf_set_keymap('n', '<space>wl', '<cmd>lua print(vim.inspect(vim.lsp.buf.list_workspace_folders()))<CR>', opts)

  if client.resolved_capabilities.document_formatting then
    vim.cmd [[augroup lsp_formatting]]
    vim.cmd [[autocmd!]]
		vim.cmd [[autocmd BufWritePre <buffer> :lua vim.lsp.buf.formatting_seq_sync({}, 1000)]]
    vim.cmd [[augroup END]]
  end
end

local capabilities = vim.lsp.protocol.make_client_capabilities()
capabilities = require('cmp_nvim_lsp').update_capabilities(capabilities)
capabilities.textDocument.completion.completionItem.snippetSupport = true

for _, lsp in ipairs(servers) do
  nvim_lsp[lsp].setup {
    on_attach = on_attach,
		capabilities = capabilities,
    flags = {
      debounce_text_changes = 150,
    }
  }
end

-- npm i -g stylelint-lsp
nvim_lsp.stylelint_lsp.setup {
	on_attach = on_attach,
	capabilities = capabilities,
	flags = {
		debounce_text_changes = 150,
	},
	filetypes = {'css', 'scss', 'less'},
	settings = {
    stylelintplus = {
			autoFixOnSave = true,
			autoFixOnFormat = true,
    }
  }
}