local keymap = vim.api.nvim_set_keymap
local opts = { noremap = true, silent = true }


-- undo and rendo file content
keymap("n", "<C-z>", ":undo<CR>", opts)
keymap("n", "<C-r>", ":redo<CR>", opts)

-- save file
keymap("n", "<C-s>", ":w<CR>", opts)

-- open file manager
keymap("n", "<C-o>", ":Files<CR>", opts)

-- close tab
keymap('n', '<C-d>', ':BufferClose<CR>', opts)

-- move between tabs
keymap('n', '<C-j>', ':BufferPrevious<CR>', opts)
keymap('n', '<C-k>', ':BufferNext<CR>', opts)

-- open cmd to create new file
keymap('n', '<C-l>', ':e ', opts)

-- install plugins
keymap('n', '<C-u>', ':PackerInstall<CR>', opts) -- packer
keymap('n', '<C-i>', ':PlugInstall<CR>', opts)   -- plug