#!/usr/bin/env bash
##makedesc: Install droidcam-obs plugin v1.5.1

set -eo pipefail

#TODO
# ffmpeg -version | head -n 1 | awk '{print $3}'
# https://github.com/dev47apps/droidcam-obs-plugin/releases

installed() { command -v "$1" >/dev/null 2>&1; }

if [ "$(uname -s)" = "Darwin" ]; then
    echo "ERROR: droidcam-obs plugin is not supported on macOS." >&2
    exit 1
fi

install() {
    echo
    echo "==============================================="
    echo "Installing droidcam-obs"
    echo "==============================================="
    echo

    # https://www.dev47apps.com/droidcam/linux/
    # https://www.dev47apps.com/obs/

    command -v "obs-studio" >/dev/null 2>&1 || echo "WARNING: You need obs-studio first!"

    mkdir -p "$HOME/install/droidcam-obs"
    wget -O /tmp/droidcam-obs.zip https://files.dev47apps.net/obs/droidcam_obs_1.5.1_linux.zip
    unzip -oq /tmp/droidcam-obs.zip -d "$HOME/install/droidcam-obs"
    rm -rf /tmp/droidcam-obs.zip
    cd "$HOME/install/droidcam-obs"
    ./install.sh
    sudo modprobe v4l2loopback video_nr=2 card_label="OBS Virtual Camera"

    echo
    echo "Finish!"
    echo "Don't forget to:"
    echo "1) restart OBS if it is running right now OR install (if not) and start it"
    echo "2) install android app: https://play.google.com/store/apps/developer?id=Dev47Apps"
    echo "3) if virtual camera not starting then execute:"
    echo -e "\tsudo modprobe v4l2loopback video_nr=2 card_label=\"OBS Virtual Camera\""
    echo
}

case "$1" in
    *) install ;;
esac