#!/bin/sh
# shellcheck disable=2016

if [ "$#" -eq 1 ]; then
	selected="$1"
else
	selected=$(
		find ~/src ~/.dotfiles -maxdepth 2 -type d,f -path '*/.git' -printf '%h\n' -prune |
			xargs -I{} sh -c 'stat -c %Y:"{}" $XDG_DATA_HOME/nvim/sessions/$(echo "{}" | sed "s|/|%|g").vim ||
            (git -C "{}" rev-parse HEAD &>/dev/null &&
                git -C "{}" --no-pager log -1 --all --format="%at:{}" 2>/dev/null ||
                stat -c %Y:"{}" "{}"/.git)' | sort -r | cut -d':' -f2- |
			fzf-tmux -p -- -d/ --with-nth -2.. --preview="exa --tree --icons --git-ignore {}"
	)
fi

if [ -z "$selected" ]; then
	exit 0
fi

selected_name=$(basename "$selected" | tr . _)
tmux_running=$(pgrep tmux)

if [ -z "$TMUX" ] && [ -z "$tmux_running" ]; then
	tmux new-session -s "$selected_name" -c "$selected"
	exit 0
fi

if ! tmux has-session -t="$selected_name" 2>/dev/null; then
	tmux new-session -ds "$selected_name" -c "$selected"
fi

tmux switch-client -t "$selected_name"