-- Set keymaps
vim.api.nvim_create_autocmd('LspAttach', {
  group = vim.api.nvim_create_augroup('UserLspConfig', {}),
  callback = function(ev)
    local opts = { buffer = ev.buf }
    vim.keymap.set('n', 'gd', vim.lsp.buf.definition, opts)
    vim.keymap.set('n', 'gD', vim.lsp.buf.declaration, opts)
    vim.keymap.set('n', 'gi', vim.lsp.buf.implementation, opts)
    vim.keymap.set('n', 'gr', vim.lsp.buf.references, opts)
    vim.keymap.set('n', 'K', vim.lsp.buf.hover, opts)
    vim.keymap.set('n', '<leader>r', vim.lsp.buf.rename, opts)
    vim.keymap.set('n', '<leader>a', vim.lsp.buf.code_action, opts)
    vim.keymap.set('n', '<leader>n', vim.diagnostic.goto_next, opts)
    vim.keymap.set('n', '<leader>p', vim.diagnostic.goto_prev, opts)
  end,
})

-- Show diagnostics in bordered pop-up
vim.diagnostic.config { virtual_text = false, float = { border = 'rounded' } }
vim.lsp.handlers['textDocument/hover'] = vim.lsp.with(
  vim.lsp.handlers.hover, { border = 'rounded' }
)
vim.lsp.handlers['textDocument/signatureHelp'] = vim.lsp.with(
  vim.lsp.handlers.signature_help, { border = 'rounded' }
)
vim.o.updatetime = 500
vim.api.nvim_create_autocmd({'CursorHold'}, {
  pattern = {'*'},
  callback = function(ev)
    vim.diagnostic.open_float(nil, { focus = false })
  end,
})

-- Set diagnostic signs
local signs = { Error = ' ', Warning = ' ', Hint = ' ', Information = ' ' }
for type, icon in pairs(signs) do
  local hl = 'DiagnosticSign' .. type
  vim.fn.sign_define(hl, { text = icon, texthl = hl, numhl = "" })
end