-- move visually selected lines up/down
vim.keymap.set('v', 'J', ":m '>+1<CR>gv=gv")
vim.keymap.set('v', 'K', ":m '<-2<CR>gv=gv")

-- join lines while preserving cursor position
vim.keymap.set('n', 'J', 'mzJ`z')

-- center the current line after various commands
vim.keymap.set('n', '<C-d>', '<C-d>zz')
vim.keymap.set('n', '<C-u>', '<C-u>zz')
vim.keymap.set('n', 'n', 'nzzzv')
vim.keymap.set('n', 'N', 'Nzzzv')
vim.keymap.set('n', '<C-k>', '<cmd>cnext<CR>zz')
vim.keymap.set('n', '<C-j>', '<cmd>cprev<CR>zz')
vim.keymap.set('n', '<leader>k', '<cmd>lnext<CR>zz')
vim.keymap.set('n', '<leader>j', '<cmd>lprev<CR>zz')

-- paste/delete using the 'black hole' register
vim.keymap.set('x', '<leader>p', [["_dP]])
vim.keymap.set({ 'n', 'v' }, '<leader>d', [["_d]])

vim.keymap.set('n', '<leader><leader>', function()
  vim.cmd 'so'
end)