nvim/lua/core/keymaps.lua

-----------------
-- Normal mode --
-----------------

-- Hint: see `:h vim.map.set()`
-- Better window navigation
vim.keymap.set("n", "<C-h>", "<C-w>h", opts)
vim.keymap.set("n", "<C-j>", "<C-w>j", opts)
vim.keymap.set("n", "<C-k>", "<C-w>k", opts)
vim.keymap.set("n", "<C-l>", "<C-w>l", opts)

-- Resize with arrows
-- delta: 2 lines
vim.keymap.set("n", "<C-Up>", ":resize -2<CR>", opts)
vim.keymap.set("n", "<C-Down>", ":resize +2<CR>", opts)
vim.keymap.set("n", "<C-Left>", ":vertical resize -2<CR>", opts)
vim.keymap.set("n", "<C-Right>", ":vertical resize +2<CR>", opts)

-- open File Explorer
vim.keymap.set("n", "<leader>pv", vim.cmd.Ex)

-- Navigate buffers
vim.keymap.set("n", "<BS>", ":bnext<CR>", opts)
vim.keymap.set("n", "<S-TAB>", ":bprevious<CR>", opts)

-- Telescope
--local builtin = require("telescope.builtin")
--vim.keymap.set("n", "<leader>pf", builtin.find_files, {})
--vim.keymap.set("n", "<C-p>", builtin.git_files, {})
--vim.keymap.set("n", "<leader>ps", function ()
--    builtin.grep_string( { search = vim.fn.input("Grep > ") } );
--end)

-- Harpoon
--local mark = require("harpoon.mark")
--local ui = require("harpoon.ui")
--vim.keymap.set("n", "<leader>a", mark.add_file)
--vim.keymap.set("n", "<C-e>", ui.toggle_quick_menu)
--
--vim.keymap.set("n", "<C-h>", function () ui.nav_file(1) end)
--vim.keymap.set("n", "<C-t>", function () ui.nav_file(2) end)
--vim.keymap.set("n", "<C-n>", function () ui.nav_file(3) end)
--vim.keymap.set("n", "<C-s>", function () ui.nav_file(4) end)

-- Undotree
vim.keymap.set("n", "<leader>u", vim.cmd.UndotreeToggle)

-- Fugitive
vim.keymap.set("n", "<leader>gs", vim.cmd.Git)

-- Put line bellow in-front of line
vim.keymap.set("n", "J", "mzJ`z")

-- Keep cursor in the middle
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")

-- Don't loose buffer
vim.keymap.set("x", "<leader>p", "\"_dP")


-----------------
-- Visual mode --
-----------------

-- Hint: start visual mode with the same area as the previous area and the same mode
vim.keymap.set("v", "<", "<gv", opts)
vim.keymap.set("v", ">", ">gv", opts)

-- Move text on visual mode
vim.keymap.set("v", "J", ":m '>+1<CR>gv=gv", opts)
vim.keymap.set("v", "K", ":m '<-2<CR>gv=gv", opts)