-- Highlight yanked text
local highlight_group = vim.api.nvim_create_augroup("YankHighlight", { clear = true })
vim.api.nvim_create_autocmd("TextYankPost", {
  pattern = "*",
  callback = function() vim.highlight.on_yank({ timeout = 170 }) end,
  group = highlight_group,
})

-- Auto fromat via LSP
vim.api.nvim_create_autocmd("BufWritePre", {
  pattern = "*",
  callback = function(ev)
    for _, client in pairs(vim.lsp.get_clients({ bufnr = ev.buf })) do
      if client.server_capabilities.documentFormattingProvider then
        vim.lsp.buf.format()
        return
      end
    end
  end,
})

-- Auto fromat via external formatters
vim.api.nvim_create_autocmd("BufWritePost", {
  pattern = "*",
  callback = function(ev)
    local ft = vim.bo[ev.buf].filetype
    local filename = vim.fn.expand("%:p")
    local view = vim.fn.winsaveview()

    if ft == "oil" then
      return
    elseif ft == "lua" then
      vim.fn.system({ "stylua", filename })
    end

    vim.cmd("edit")
    vim.fn.winrestview(view) -- Edit moves our view, so we restore it
  end,
})