-- Navigating text
vim.keymap.set("n", "i", "gk", {})
vim.keymap.set("n", "k", "gj", {})
vim.keymap.set("n", "j", "<Left>", {})
vim.keymap.set("n", "l", "<Right>", {})
vim.keymap.set("x", "i", "gk", {})
vim.keymap.set("x", "k", "gj", {})
vim.keymap.set("x", "j", "<Left>", {})
vim.keymap.set("x", "l", "<Right>", {})
vim.keymap.set("n", "J", "<Home>", {})
vim.keymap.set("n", "L", "<End>", {})

-- Navigating windows
vim.keymap.set("n", "<C-w>k", ":wincmd j<CR>", {})
vim.keymap.set("n", "<C-w>i", ":wincmd k<CR>", {})
vim.keymap.set("n", "<C-w>j", ":wincmd h<CR>", {})
vim.keymap.set("n", "<C-w>l", ":wincmd l<CR>", {})

-- Navigating the buffer list
-- vim.keymap.set("n", "<C-i>", ":bprevious!<CR>", { silent = true })
-- vim.keymap.set("n", "<C-k>", ":bnext!<CR>", { silent = true })
vim.keymap.set("n", "<C-i>", function()
	local manager = require("neo-tree.sources.manager")
	local state = manager.get_state("buffers")
	local renderer = require("neo-tree.ui.renderer")
	local scroll_padding = 3
	renderer.focus_node(state, nil, true, -1, scroll_padding)
	local node = state.tree:get_node()
	if node.type == "directory" then
		return -- state.commands.open(state) would state.commands.toggle_node(state)
	else
		state.commands.open(state)
	end
	manager.redraw(state)
end, { silent = true, desc = "Navigate down buffers in neo-tree's order" })
vim.keymap.set("n", "<C-k>", function()
	local manager = require("neo-tree.sources.manager")
	local state = manager.get_state("buffers")
	local renderer = require("neo-tree.ui.renderer")
	local scroll_padding = 3
	renderer.focus_node(state, nil, true, 1, scroll_padding)
	local node = state.tree:get_node()
	if node.type == "directory" then
		return -- state.commands.open(state) would state.commands.toggle_node(state)
	else
		state.commands.open(state)
	end
	manager.redraw(state)
end, { silent = true, desc = "Navigate down buffers in neo-tree's order" })
vim.keymap.set("n", "m", "<leader>fb", { desc = "Switch buffer", silent = true })
vim.keymap.set("n", "<leader>m", ":buffer #<CR>", { desc = "Go to last buffer", silent = true })
-- Navigating the location list
-- vim.keymap.set("n", "<C-j>", ":lprevious<CR>", {})
-- vim.keymap.set("n", "<C-l>", ":lnext<CR>", {})
-- Navigating the quickfix list
vim.keymap.set("n", "<C-u>", ":cprevious<CR>", {})
vim.keymap.set("n", "<C-o>", ":cnext<CR>", {})

-- Modifing text
--- Maintain Visual Mode after shifting > and <
vim.keymap.set("v", "<", "<gv", {})
vim.keymap.set("v", ">", ">gv", {})
--- Copy line
vim.keymap.set("n", "Y", "Vy", {})
--- Joining lines
vim.keymap.set("n", "K", ":join<CR>", {})

-- Searching text
local search_buffer = function(pattern)
	vim.opt.hlsearch = true
	vim.fn.setreg("/", pattern)
end
-- Alternative to Telescope live_grep({ grep_open_files = true })
-- followed by <C-q> to but the results in a quicklist.
local search_buffers = function(pattern)
	vim.opt.hlsearch = true
	vim.fn.setreg("/", pattern)
	vim.api.nvim_command(string.format(
		"vimgrep /%s/g %s",
		pattern,
		vim.fn.join(
			vim.tbl_map(function(n)
				return vim.fn.fnameescape(n.name)
			end, vim.fn.getbufinfo({ buflisted = 1 })),
			" "
		)
	))
end
vim.api.nvim_create_user_command("G", function(opts)
	search_buffers(vim.fn.join(opts.fargs, " "))
end, { desc = "Search argument in all buffers", nargs = 1 })

vim.keymap.set("n", "*", function()
	search_buffer("\\<" .. vim.fn.expand("<cword>") .. "\\>")
end, { silent = true, desc = "Search word under cursor in current buffer" })
vim.keymap.set("n", "<C-n>", function()
	search_buffers("\\<" .. vim.fn.expand("<cword>") .. "\\>")
end, { silent = true, desc = "Search word under cursor in all buffers" })

vim.keymap.set("n", "µ", function()
	search_buffer(vim.fn.expand("<cword>"))
end, { silent = true, desc = "Search subword under cursor in current buffers" })
vim.keymap.set("n", "<C-m>", function()
	search_buffers(vim.fn.expand("<cword>"))
end, { silent = true, desc = "Search subword under cursor in all buffers" })