--
-- Git-related utilities
--

vim.keymap.set("n", "<Leader>gt", "<Cmd>GitGutterLineHighlightsToggle<CR>", { desc = "Toggle git line highlighting" })
vim.keymap.set("n", "<Leader>gg", "<Cmd>GitGutter<CR>", { desc = "Refresh GitGutter" })
vim.keymap.set("n", "<Leader>gq", "<Cmd>GitGutterQuickFix<CR>", { desc = "Git hunks to quickfix list" })
vim.keymap.set("n", "<Leader>gz", "<Cmd>GitGutterFold<CR>", { desc = "Fold everything except git diff" })

local function git_blame(file, line)
	local sys = vim.system({
		"bash",
		"-c",
		string.format(
			'grep -E --only-matching "^author .*$|^summary .*$|^[[:xdigit:]]{40}" <(git blame -L %d,%d --porcelain -- %s)',
			line,
			line,
			file
		),
	}):wait()
	if sys.stdout then
		vim.notify(sys.stdout, vim.log.levels.INFO)
	end
	if sys.code ~= 0 then
		local err_msg = "git blame failed (" .. sys.code .. ")\n" .. sys.stderr
		vim.notify(err_msg, vim.log.levels.ERROR)
	end
end

vim.api.nvim_create_user_command("GitBlame", function()
	git_blame(vim.api.nvim_buf_get_name(0), vim.api.nvim_win_get_cursor(0)[1])
end, { desc = "Show current line git blame" })