if !has('nvim')
  finish
endif

packadd nvim-lspconfig
packadd cmp-nvim-lsp
packadd symbols-outline.nvim
packadd lsp_signature.nvim

lua <<EOF

local lspconfig = require 'lspconfig'
local cmp_nvim_lsp = require 'cmp_nvim_lsp'
local symbols_outline = require 'symbols-outline'
local lsp_signature = require 'lsp_signature'

local capabilities = vim.lsp.protocol.make_client_capabilities()
capabilities = cmp_nvim_lsp.update_capabilities(capabilities)

local opts = { noremap = true, silent = true }

vim.keymap.set('n', '[g', vim.diagnostic.goto_prev, opts)
vim.keymap.set('n', ']g', vim.diagnostic.goto_next, opts)

local on_attach = function(client, bufnr)
  vim.api.nvim_buf_set_option(bufnr, 'omnifunc', 'v:lua.vim.lsp.omnifunc')
  vim.api.nvim_buf_set_option(bufnr, 'tagfunc', 'v:lua.vim.lsp.tagfunc')

  -- Mappings.
  -- See `:help vim.lsp.*` for documentation on any of the below functions
  local bufopts = { noremap=true, silent=true, buffer=bufnr }
  vim.keymap.set('n', 'gD', vim.lsp.buf.declaration, bufopts)
  vim.keymap.set('n', 'gd', vim.lsp.buf.definition, bufopts)
  vim.keymap.set('n', 'K', vim.lsp.buf.hover, bufopts)
  vim.keymap.set('n', 'gi', vim.lsp.buf.implementation, bufopts)
  vim.keymap.set('n', '<C-k>', vim.lsp.buf.signature_help, bufopts)
  -- vim.keymap.set('n', '<space>wa', vim.lsp.buf.add_workspace_folder, bufopts)
  -- vim.keymap.set('n', '<space>wr', vim.lsp.buf.remove_workspace_folder, bufopts)
  -- vim.keymap.set('n', '<space>wl', function()
  --   print(vim.inspect(vim.lsp.buf.list_workspace_folders()))
  -- end, bufopts)
  vim.keymap.set('n', 'gy', vim.lsp.buf.type_definition, bufopts)
  vim.keymap.set('n', '<leader>rn', vim.lsp.buf.rename, bufopts)
  -- vim.keymap.set('n', '<space>ca', vim.lsp.buf.code_action, bufopts)
  vim.keymap.set('n', 'gr', vim.lsp.buf.references, bufopts)
  -- vim.keymap.set('n', '<space>f', vim.lsp.buf.formatting, bufopts)

  vim.keymap.set('n', '<leader><leader>s', symbols_outline.toggle_outline)

  vim.cmd [[
    autocmd BufWritePre *.go,*.rs lua vim.lsp.buf.formatting_sync(nil, 1000)
  ]]

  lsp_signature.on_attach()
end

local servers = { 'clangd', 'gopls' , 'gdscript', 'pylsp' }

for _, lsp in pairs(servers) do
  lspconfig[lsp].setup{
    on_attach = on_attach,
    capabilities = capabilities,
  }
end

EOF