#!/bin/bash 

set -e 

GIT_BRANCH=$1
GIT_REPO=https://ognproject.evlt.uma.es/gitea/opengnsys/ogrepository.git
GIT_SSL_NO_VERIFY=true
INSTALL_DIR=/opt/opengnsys/ogrepository
DOWNLOAD_DIR=/tmp/ogrepository
DEBIAN_FRONTEND=noninteractive
export DEBIAN_FRONTEND
export GIT_SSL_NO_VERIFY

clone_repository() {
    local BRANCH=$1
    rm -rf $DOWNLOAD_DIR
    git clone -b "$BRANCH" $GIT_REPO $DOWNLOAD_DIR
    chown -R ogrepository:ogrepository $DOWNLOAD_DIR
}

check_root() {
    if [ "$(id -u)" != "0" ]; then
        echo "This script must be run as root" 1>&2
        exit 1
    fi
}

install_uftp() {
    apt install uftp -y 
}

install_updcast () {
    apt install $DOWNLOAD_DIR/packets/udpcast_20230924_amd64.deb
}

add_user_ogrepository() {
    if ! id "ogrepository" &>/dev/null; then
        echo "User ogrepository does not exist, creating it"
        useradd -r -s /bin/bash ogrepository 
    fi
    if [ ! -f /etc/sudoers.d/ogrepository ]; then
        echo "User ogrepository does not have sudo permissions, adding it"
        echo 'ogrepository ALL=(ALL) NOPASSWD: ALL' > /etc/sudoers.d/ogrepository
    fi
    
}

create_directories() {
    mkdir -p $INSTALL_DIR
    mkdir -p $INSTALL_DIR/images $INSTALL_DIR/images_trash/  $INSTALL_DIR/bin/ $INSTALL_DIR/etc/ $INSTALL_DIR/log/ $INSTALL_DIR/api/
    chown -R ogrepository:ogrepository $INSTALL_DIR
}

install_dependencies() {
    apt update -y 
    apt install -y git python3 python3-pip python3-flask  python3-paramiko python3-psutil  python3-flasgger debian-archive-keyring samba gunicorn
}

install_ext_repo() {
    cp $DOWNLOAD_DIR/installer/files/ctorrent.sources /etc/apt/sources.list.d/ctorrent.sources
    apt update -y 
}

install_external_packages() {
    apt install -y bittorrent bittornado ctorrent
}

install_ogrepo-api_service() {
    cp -r $DOWNLOAD_DIR/installer/files/ogrepo-api.service /etc/systemd/system/ogrepo-api.service
    systemctl enable --now ogrepo-api
}

install_files() {
    cp -pr $DOWNLOAD_DIR/bin/* $INSTALL_DIR/bin/
    cp -pr $DOWNLOAD_DIR/etc/* $INSTALL_DIR/etc/
    cp -pr $DOWNLOAD_DIR/api/* $INSTALL_DIR/api/
    chown -R ogrepository:ogrepository $INSTALL_DIR
}

## Main program 
check_root
install_ext_repo
install_dependencies
install_external_packages
install_uftp
install_updcast
add_user_ogrepository
clone_repository "$GIT_BRANCH"
create_directories
install_files
install_ogrepo-api_service