local map = vim.api.nvim_set_keymap
local buf_map = vim.api.nvim_buf_set_keymap

require("toggleterm").setup({
	-- size can be a number or function which is passed the current terminal
	size = function(term)
		if term.direction == "horizontal" then
			return 15
		elseif term.direction == "vertical" then
			return vim.o.columns * 0.4
		end
	end,
	open_mapping = "<C-n>",
	hide_numbers = true, -- hide the number column in toggleterm buffers
	shade_filetypes = {},
	shade_terminals = true,
	shading_factor = "1", -- the degree by which to darken to terminal colour, default: 1 for dark backgrounds, 3 for light
	start_in_insert = true,
	insert_mappings = true, -- whether or not the open mapping applies in insert mode
	persist_size = true,
	direction = "vertical", -- 'vertical' | 'horizontal' | 'window' | 'float',
	close_on_exit = true, -- close the terminal window when the process exits
	shell = vim.o.shell, -- change the default shell
	-- This field is only relevant if direction is set to 'float'
	float_opts = {
		-- The border key is *almost* the same as 'nvim_win_open'
		-- see :h nvim_win_open for details on borders however
		-- the 'curved' border is a custom border type
		-- not natively supported but implemented in this plugin.
		border = "single", -- 'single' | 'double' | 'shadow' | 'curved' | ... other options supported by win open
		-- width = <value>,
		-- height = <value>,
		winblend = 3,
		highlights = {
			border = "Normal",
			background = "Normal",
		},
	},
})
map("n", "<leader>gt", "<cmd>lua require('functions').gitui_toggle()<CR>i", { noremap = true, silent = true }) -- start gitui
map("t", "<ESC>", "<C-\\><C-n>", { noremap = true, silent = true }) -- back to normal mode in Terminal

-- Better navigation to and from terminal
local set_terminal_keymaps = function()
	local opts = { noremap = true }
	buf_map(0, "t", "<esc>", [[<C-\><C-n>]], opts)
	buf_map(0, "t", "<C-h>", [[<C-\><C-n><C-W>h]], opts)
	buf_map(0, "t", "<C-j>", [[<C-\><C-n><C-W>j]], opts)
	buf_map(0, "t", "<C-k>", [[<C-\><C-n><C-W>k]], opts)
	buf_map(0, "t", "<C-l>", [[<C-\><C-n><C-W>l]], opts)
end
-- if you only want these mappings for toggle term use term://*toggleterm#* instead
vim.api.nvim_create_autocmd("TermOpen", {
	pattern = "term://*",
	callback = function()
		set_terminal_keymaps()
	end,
	desc = "Mappings for navigation with a terminal",
})