nix-infra/modules/nvim/keymap.lua

local map = vim.keymap.set 
local wk = require("which-key")

-- better up/down
map({ "n", "x" }, "j", "v:count == 0 ? 'gj' : 'j'", { expr = true, silent = true })
map({ "n", "x" }, "<Down>", "v:count == 0 ? 'gj' : 'j'", { expr = true, silent = true })
map({ "n", "x" }, "k", "v:count == 0 ? 'gk' : 'k'", { expr = true, silent = true })
map({ "n", "x" }, "<Up>", "v:count == 0 ? 'gk' : 'k'", { expr = true, silent = true })

-- Move to window using the <ctrl> hjkl keys
map("n", "<C-h>", "<C-w>h", { desc = "Go to left window", remap = true })
map("n", "<C-j>", "<C-w>j", { desc = "Go to lower window", remap = true })
map("n", "<C-k>", "<C-w>k", { desc = "Go to upper window", remap = true })
map("n", "<C-l>", "<C-w>l", { desc = "Go to right window", remap = true })

-- Resize window using <ctrl> arrow keys
map("n", "<C-Up>", "<cmd>resize +2<cr>", { desc = "Increase window height" })
map("n", "<C-Down>", "<cmd>resize -2<cr>", { desc = "Decrease window height" })
map("n", "<C-Left>", "<cmd>vertical resize -2<cr>", { desc = "Decrease window width" })
map("n", "<C-Right>", "<cmd>vertical resize +2<cr>", { desc = "Increase window width" })

-- Move Lines
map("n", "<A-j>", "<cmd>m .+1<cr>==", { desc = "Move down" })
map("n", "<A-k>", "<cmd>m .-2<cr>==", { desc = "Move up" })
map("i", "<A-j>", "<esc><cmd>m .+1<cr>==gi", { desc = "Move down" })
map("i", "<A-k>", "<esc><cmd>m .-2<cr>==gi", { desc = "Move up" })
map("v", "<A-j>", ":m '>+1<cr>gv=gv", { desc = "Move down" })
map("v", "<A-k>", ":m '<-2<cr>gv=gv", { desc = "Move up" })

-- buffers
map("n", "<S-h>", "<cmd>bprevious<cr>", { desc = "Prev buffer" })
map("n", "<S-l>", "<cmd>bnext<cr>", { desc = "Next buffer" })

-- Clear search with <esc>
map({ "i", "n" }, "<esc>", "<cmd>noh<cr><esc>", { desc = "Escape and clear hlsearch" })

-- save file
map({ "i", "x", "n", "s" }, "<C-s>", "<cmd>w<cr><esc>", { desc = "Save file" })

--keywordprg
map("n", "<leader>K", "<cmd>norm! K<cr>", { desc = "Keywordprg" })

-- better indenting
map("v", "<", "<gv")
map("v", ">", ">gv")

wk.register({["<leader>f"] = { name = "File" }})
-- new file
map("n", "<leader>fn", "<cmd>enew<cr>", { desc = "New File" })

map("n", "<leader>xl", "<cmd>lopen<cr>", { desc = "Location List" })
map("n", "<leader>xq", "<cmd>copen<cr>", { desc = "Quickfix List" })

map("n", "<leader>ww", "<C-W>p", { desc = "Other window", remap = true })
map("n", "<leader>wd", "<C-W>c", { desc = "Delete window", remap = true })
map("n", "<leader>w-", "<C-W>s", { desc = "Split window below", remap = true })
map("n", "<leader>w|", "<C-W>v", { desc = "Split window right", remap = true })
map("n", "<leader>-", "<C-W>s", { desc = "Split window below", remap = true })
map("n", "<leader>|", "<C-W>v", { desc = "Split window right", remap = true })

-- tabs
wk.register({["<leader><tab>"] = { name = "Tabs" }})
map("n", "<leader><tab>l", "<cmd>tablast<cr>", { desc = "Last Tab" })
map("n", "<leader><tab>f", "<cmd>tabfirst<cr>", { desc = "First Tab" })
map("n", "<leader><tab><tab>", "<cmd>tabnew<cr>", { desc = "New Tab" })
map("n", "<leader><tab>]", "<cmd>tabnext<cr>", { desc = "Next Tab" })
map("n", "<leader><tab>d", "<cmd>tabclose<cr>", { desc = "Close Tab" })
map("n", "<leader><tab>[", "<cmd>tabprevious<cr>", { desc = "Previous Tab" })


-- NeoTree
map("n", "<leader>fe",
	function()
  	require("neo-tree.command").execute({ toggle = true, dir = vim.loop.cwd() })
  end, { desc = "NeoTree" }
)
map("n", "<leader>e", "<leader>fe", { desc = "NeoTree", remap = true })

map("n", "<leader>ge",
	function()
		require("neo-tree.command").execute({ source = "git_status", toggle = true })
	end, { desc = "Git explorer" }
)
map("n", "<leader>be",
	function()
		require("neo-tree.command").execute({ source = "buffers", toggle = true })
	end, { desc = "Buffer explorer" }
)

map({"n", "v"}, "<leader>cf",
	function()
		require("conform").format()
	end, { desc = "Format Code" }
)