#!/bin/bash

# Convenience entrypoint "for now". You can symlink this from somewhere on your
# PATH so you can call `piglet` from anywhere. This is also the main executable
# we expose for npm/npx.
#
# Adds a `--devtools` option which runs piglet through nodemon, so you get hot
# reload in node while working on piglet itself, and it runs node with the
# --inspect flag, so you can connect from chrome devtools.

# Using a bash-ism here because to do this in POSIX in the face of symlinks is _very_ tedious, see https://stackoverflow.com/a/29835459
PIGLET_HOME="$(dirname "$(realpath $0)")/.."

RLWRAP="$(which rlwrap)"

if [ -z "$RLWRAP" ]; then
    echo "rlwrap not found on PATH, make sure it's installed for history and line editing in the REPL."
fi

if [ "$1" = "--devtools" ]; then
    shift
    # not using npx because it messes up rlwrap
    if [ -z "$(which nodemon)" ]; then
        pnpm i -g nodemon
    fi

    if [ -z "$RLWRAP" ]; then
        exec nodemon --watch "${PIGLET_HOME}" --inspect "${PIGLET_HOME}/lib/piglet/node/main.mjs" "--" "$@"
    fi
    exec "$RLWRAP" nodemon --watch "${PIGLET_HOME}" --inspect "${PIGLET_HOME}/lib/piglet/node/main.mjs" "--" "$@"
else
    if [ -z "$RLWRAP" ]; then
        exec node "${PIGLET_HOME}/lib/piglet/node/main.mjs" "$@"
    fi
    exec "$RLWRAP" node "${PIGLET_HOME}/lib/piglet/node/main.mjs" "$@"
fi