vim.g.mapleader = " "

-- ─< lua/keymaps.lua >─────────────────────────────────────────────────────────────────
local nomap = vim.keymap.set
nomap("i", "<C-k>", "")
nomap("n", "<C-k>", "")
nomap("n", "q", "")
nomap("v", "q", "")
nomap("v", "<leader>S", "")

local map = vim.keymap.set

map("n", "<Esc>", "<cmd>nohlsearch<CR>")

-- ─< Comment >─────────────────────────────────────────────────────────────────────────
map("n", "<S-c>", "gcc", { desc = "comment toggle", remap = true })
map("v", "<S-c>", "gc", { desc = "comment toggle", remap = true })

-- ─< Terminal >────────────────────────────────────────────────────────────────────────
map("t", "<C-x>", "<C-\\><C-N>", { desc = "terminal escape terminal mode" })

-- ─< Movement while in "insert"-mode >─────────────────────────────────────────────────
map("i", "<C-b>", "<ESC>^i", { desc = "move beginning of line" })
map("i", "<C-e>", "<End>", { desc = "move end of line" })
map("i", "<C-h>", "<Left>", { desc = "move left" })
map("i", "<C-l>", "<Right>", { desc = "move right" })
map("i", "<C-j>", "<Down>", { desc = "move down" })
map("i", "<C-k>", "<Up>", { desc = "move up" })

map("n", ";", ":", { desc = "CMD enter command mode" })
map("i", "jk", "<ESC>")
map("i", "<C-c>", "<ESC>")
map("n", "<C-c>", "<ESC>")
map("v", "<C-c>", "<ESC>")

map("n", "<leader>x", "<cmd>bd!<CR>")

-- ─< Disable arrow keys in normal mode >───────────────────────────────────────────────
map("n", "<left>", '<cmd>echo "Use h to move!!"<CR>')
map("n", "<right>", '<cmd>echo "Use l to move!!"<CR>')
map("n", "<up>", '<cmd>echo "Use k to move!!"<CR>')
map("n", "<down>", '<cmd>echo "Use j to move!!"<CR>')

map("n", "<leader>l", "<C-w><C-l>", { desc = "Move focus to the right window" })
map("n", "<leader>h", "<C-w><C-h>", { desc = "Move focus to the left window" })
map("n", "<leader>j", "<C-w><C-j>", { desc = "Move focus to the lower window" })
map("n", "<leader>k", "<C-w><C-k>", { desc = "Move focus to the upper window" })

-- map("n", "<leader>p", vim.cmd.Ex)
map("n", "<leader>q", vim.cmd.q)
map("n", "<leader>s", vim.cmd.w)
map("n", "<C-s>", vim.cmd.w)

-- ─< rename word under cursor >───────────────────────────────────────────────────────────
map("n", "<leader>R", [[:%s/\<<C-r><C-w>\>/<C-r><C-w>/gI<Left><Left><Left>]])

-- window management
map("n", "<leader>sv", "<C-w>v", { desc = "Split window vertically" }) -- split window vertically
map("n", "<leader>sh", "<C-w>s", { desc = "Split window horizontally" }) -- split window horizontally

-- ─< Set path to your shell functions file (update this to your actual path) >─────────
local shell_script_path = vim.fs.joinpath(vim.fn.stdpath("config") .. "/functions.sh")

-- ─< Add this before the keymap definition to check for file existence >───────────────
if vim.uv.fs_stat(shell_script_path) then -- Check if file exists
	-- inserts shell commands (sources ~/.config/nvim/functions.sh to source predefined functions)
	vim.keymap.set({ "n", "i" }, "<leader>tt", function()
		vim.ui.input({ prompt = "Shell Command: " }, function(input_cmd)
			if not input_cmd or input_cmd == "" then
				return
			end

			-- Construct the command to source your functions and execute
			local full_cmd = string.format(
				"source %s && %s", -- Uses POSIX-compliant '&&' to fail if source fails
				vim.fn.shellescape(shell_script_path),
				input_cmd
			)

			-- Execute in bash to ensure function availability
			local result = vim.fn.system({ "bash", "--norc", "--noprofile", "-c", full_cmd })
			local exit_code = vim.v.shell_error

			-- Handle errors
			if exit_code ~= 0 then
				vim.notify(
					"Error (" .. exit_code .. "):\n" .. result,
					vim.log.levels.ERROR,
					{ title = "Command Failed" }
				)
				return
			end

			-- Process output
			local lines = vim.split(result:gsub("\n$", ""), "\n")

			-- Insert at cursor position
			local row, col = unpack(vim.api.nvim_win_get_cursor(0))
			if #lines == 1 then
				vim.api.nvim_set_current_line(
					vim.api.nvim_get_current_line():sub(1, col)
						.. lines[1]
						.. vim.api.nvim_get_current_line():sub(col + 1)
				)
			else
				vim.api.nvim_buf_set_lines(0, row, row, false, lines)
			end
		end)
	end, { desc = "Insert Shell Output (with functions)" })
else
	vim.notify("Shell functions file not found: " .. shell_script_path, vim.log.levels.WARN)
end