#!/bin/zsh

switch_to() {
    [[ -z $TMUX ]] && tmux attach-session -t $1 || tmux switch-client -t $1
}

hydrate() {
    local tmux_hydrate_path="$HOME/.local/bin/.tmux-session-hydrate"
    [[ -f $2/.tmux-session-hydrate ]] && tmux_hydrate_path="$2/.tmux-session-hydrate"
    [[ -f $tmux_hydrate_path ]] && tmux send-keys -t $1 "source $tmux_hydrate_path" c-M
}

local name_regex="^\([-_A-Za-z0-9]*\):.*$"
local existing_sessions=$([[ -n $(pgrep tmux) ]] && tmux list-sessions | sed "s/$name_regex/\1/" || echo '')
local search_dirs=(
    $HOMEBOX
    $DEVDIR
    $DEVDIR/git/*
)
local target_name=''
local target_path=''

[[ $# -eq 1 ]] && target_path=$1 ||
    target_path=$(find $search_dirs -mindepth 1 -maxdepth 1 -type d | fzf)

if [[ $target_path = "existing" ]]; then target_name=$(echo $existing_sessions | fzf);
elif [[ $target_path = "hub" ]]; then target_name="hub" && target_path="$HOME";
elif [[ -n $target_path ]]; then target_name=$(basename "$target_path" | tr . _);
fi

[[ -z $target_name ]] && exit 0

! (echo $existing_sessions | grep -q "$target_name") &&
    tmux new-session -d -s $target_name -c $target_path &&
    hydrate $target_name $target_path
switch_to $target_name