#!/usr/bin/env bash

# Quickly navigate between different directories using fzf and tmux sessions
# (Thanks, ThePrimeagen!).
#
# https://github.com/ThePrimeagen/.dotfiles/blob/master/bin/.local/bin/tmux-sessionizer
# https://frontendmasters.com/workshops/dev-productivity

if [[ $# -eq 1 ]]; then
  selected=$1
else
  # Get the session name from fuzzy-finding list of directories and generating a
  # tmux-safe version.
  items=$(find ~/Code -mindepth 3 -maxdepth 3 -type d ! -name .git)
  items+="$HOME/Code/github.com/opdavies/dotfiles"

  selected=$(echo "${items}" | sort | fzf --reverse)
fi

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

is_tmux_running=$(pgrep tmux)
selected_name=$(basename "$selected" | tr . -)

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

# Create a new session if tmux does not already have a session matching the
# selected session name.
if ! tmux has-session -t $selected_name 2> /dev/null; then
  tmux new-session -s $selected_name -c $selected -d
fi

if [[ -z $TMUX ]]; then
  tmux attach-session -t $selected_name
else
  tmux switch-client -t $selected_name
fi