#!/usr/bin/with-contenv bashio
# shellcheck shell=bash
set -e

##########
# INIT   #
##########

# Define preferences line
CONFIG_LOCATION=/config/qBittorrent
mkdir -p "$CONFIG_LOCATION"

# copy default config
if [ ! -f "$CONFIG_LOCATION"/qBittorrent.conf ]; then
    cp /defaults/qBittorrent.conf "$CONFIG_LOCATION"/qBittorrent.conf
fi

cd "$CONFIG_LOCATION"/ || true
LINE=$(sed -n '/\[Preferences\]/=' qBittorrent.conf) || bashio::exit.nok "qBittorrent.conf not valid"
LINE=$((LINE + 1))

# Remove unused folders
if [ -d "$CONFIG_LOCATION"/addons_config ]; then rm -r "$CONFIG_LOCATION"/addons_config; fi
if [ -d "$CONFIG_LOCATION"/qBittorrent ]; then rm -r "$CONFIG_LOCATION"/qBittorrent; fi

# Check file size
ORIGINAL_SIZE="$(wc -c "$CONFIG_LOCATION"/qBittorrent.conf)"

###########
# TIMEOUT #
###########

if bashio::config.has_value 'run_duration'; then
    echo "Timer mode set"
else
    rm -r /etc/services.d/timer
fi

##################
# Default folder #
##################

# Set configuration
if bashio::config.has_value 'SavePath'; then

    # Set variable
    DOWNLOADS=$(bashio::config 'SavePath')
    DOWNLOADS=${DOWNLOADS:-/share/downloads} # Default if not set

    # Replace save path
    sed -i -e "/SavePath/d" \
        -e "/\[Preferences\]/a Downloads\\\SavePath=$DOWNLOADS" \
        -e "/\[AutoRun\]/a Downloads\\\DefaultSavePath=$DOWNLOADS" \
        -e "/\[Preferences\]/a Downloads\\\DefaultSavePath=$DOWNLOADS" \
        -e "/\[BitTorrent\]/a Downloads\\\DefaultSavePath=$DOWNLOADS" \
        -e "/\[BitTorrent\]/a Session\\\DefaultSavePath=$DOWNLOADS" qBittorrent.conf

    # Info
    bashio::log.info "Downloads can be found in $DOWNLOADS"
fi

# Create default location
if [ ! -d "$DOWNLOADS" ]; then
    mkdir -p "$DOWNLOADS" || bashio::log.fatal "Error : folder defined in SavePath doesn't exist and can't be created. Check path"
fi
chown -R "$PUID:$PGID" "$DOWNLOADS" || bashio::log.fatal "Error, please check default save folder configuration in addon"

##############
# Avoid bugs #
##############

sed -i -e "/CSRFProtection/d" \
    -e "/ClickjackingProtection/d" \
    -e "/HostHeaderValidation/d" \
    -e "/WebUI\\\Address/d" \
    -e "/\[Preferences\]/a \WebUI\\\CSRFProtection=false" \
    -e "/\[Preferences\]/a \WebUI\\\ClickjackingProtection=false" \
    -e "/\[Preferences\]/a \WebUI\\\HostHeaderValidation=false" \
    -e "/\[Preferences\]/a \WebUI\\\Address=\*" qBittorrent.conf

#sed -i '/WebUI\ReverseProxySupportEnabled/d' qBittorrent.conf
#sed -i "$LINE i\WebUI\\\ReverseProxySupportEnabled=true" qBittorrent.conf

################
# Correct Port #
################

# sed -i '/PortRangeMin/d' qBittorrent.conf
# sed -i "$LINE i\Connection\\\PortRangeMin=6881" qBittorrent.conf
sed -i "s|6881|59595|g" qBittorrent.conf # Correction if required

#########################
# Interface binding mode #
#########################

if ! bashio::config.true 'openvpn_enabled' && ! bashio::config.true 'wireguard_enabled'; then
    sed -i '/Interface/d' qBittorrent.conf
    bashio::log.info "No VPN selected: qBittorrent interface binding removed (all interfaces allowed)"
fi

################
# SSL CONFIG   #
################

# Clean data
sed -i '/HTTPS/d' qBittorrent.conf

bashio::config.require.ssl
if bashio::config.true 'ssl'; then
    bashio::log.info "ssl enabled. If webui don't work, disable ssl or check your certificate paths"
    #set variables
    CERTFILE=$(bashio::config 'certfile')
    KEYFILE=$(bashio::config 'keyfile')

    #Modify configuration
    sed -i "$LINE i\WebUI\\\HTTPS\\\Enabled=True" qBittorrent.conf
    sed -i "$LINE i\WebUI\\\HTTPS\\\CertificatePath=/ssl/$CERTFILE" qBittorrent.conf
    sed -i "$LINE i\WebUI\\\HTTPS\\\KeyPath=/ssl/$KEYFILE" qBittorrent.conf
fi

################
# WHITELIST    #
################

cd "$CONFIG_LOCATION"/ || true

WHITELIST="$(bashio::config 'whitelist')"
# Sanitize blanks after comma
WHITELIST="${WHITELIST// /}"
WHITELIST="${WHITELIST//,/,\ }"
#clean data
sed -i '/AuthSubnetWhitelist/d' qBittorrent.conf

if [[ "${#WHITELIST}" -gt 5 ]]; then
    sed -i "$LINE i\WebUI\\\AuthSubnetWhitelistEnabled=true" qBittorrent.conf
    sed -i "$LINE i\WebUI\\\AuthSubnetWhitelist=$WHITELIST" qBittorrent.conf
    bashio::log.info "Whitelisted subsets will not require a password : $WHITELIST"
else
    sed -i "$LINE i\WebUI\\\AuthSubnetWhitelistEnabled=false" qBittorrent.conf
    bashio::log.info "Whitelisted subsets deactivated"
fi

###############
# USERNAME    #
###############

cd "$CONFIG_LOCATION"/ || true
if bashio::config.has_value 'Username'; then
    USERNAME="$(bashio::config 'Username')"
else
    USERNAME="admin"
fi

#clean data
sed -i '/WebUI\\\Username/d' qBittorrent.conf
#add data
sed -i "/\[Preferences\]/a\WebUI\\\Username=$USERNAME" qBittorrent.conf
bashio::log.info "WEBUI username set to $USERNAME"

# Add default password if not existing
if ! grep -q Password_PBKDF2 qBittorrent.conf; then
    sed -i "/\[Preferences\]/a\WebUI\\\Password_PBKDF2=\"@ByteArray(cps93Gf8ma8EM3QRon+spg==:wYFoMNVmdiqzWYQ6mFrvET+RRbBSIPVfXFFeEy0ZEagxvNuEF7uGVnG5iq8oeu38kGLtmJqCM2w8cTdtORDP2A==)\"" qBittorrent.conf
fi

####################
# REBOOT IF NEEDED #
####################

# Reboot if first time password is set, or if password is changed

# Check file size
if [[ "$ORIGINAL_SIZE" != "$(wc -c "$CONFIG_LOCATION"/qBittorrent.conf)" ]]; then
    bashio::log.warning "Configuration changed, rebooting"
    sleep 5
    bashio::addon.restart
fi

################
# Alternate UI #
################

CUSTOMUI=$(bashio::config 'customUI')

# Clean data if not custom
if [ ! "$CUSTOMUI" = custom ]; then
    sed -i '/AlternativeUIEnabled/d' qBittorrent.conf
    sed -i '/RootFolder/d' qBittorrent.conf
    rm -f -r /webui
    mkdir -p /webui
    chown "$PUID:$PGID" /webui
fi

# Clean data if not custom
if [ "$CUSTOMUI" = default ]; then
    echo ""
    bashio::log.warning "Default Webui selected ! It will not work for ingress, which will stay with vuetorrent"
    echo ""
    sed -i '/AlternativeUIEnabled/d' qBittorrent.conf
    sed -i '/RootFolder/d' qBittorrent.conf
    # Update ingress webui
    curl -f -s -S -O -J -L "$(curl -f -s -L https://api.github.com/repos/WDaan/VueTorrent/releases | grep -o "http.*vuetorrent.zip" | head -1)" > /dev/null
    unzip -o vuetorrent.zip -d / > /dev/null
    rm vuetorrent.zip
fi

# Install webui
if bashio::config.has_value 'customUI' && [ ! "$CUSTOMUI" = default ] && [ ! "$CUSTOMUI" = custom ]; then
    ### Variables
    bashio::log.info "Alternate UI enabled : $CUSTOMUI. If webui don't work, disable this option"

    ### Download WebUI
    case $CUSTOMUI in
        "vuetorrent")
            curl -f -s -S -J -L -o /webui/release.zip "$(curl -f -s -L https://api.github.com/repos/WDaan/VueTorrent/releases/latest | grep -o "http.*vuetorrent.zip" | head -1)" > /dev/null
            ;;

        "qbit-matUI")
            curl -f -s -S -J -L -o /webui/release.zip "$(curl -f -s -L https://api.github.com/repos/bill-ahmed/qbit-matUI/releases/latest | grep -o "http.*Unix.*.zip" | head -1)" > /dev/null
            echo ""
            bashio::log.warning "qbit-matUI selected ! It will not work for ingress, which will stay with vuetorrent"
            echo ""
            ;;

        "qb-web")
            curl -f -s -S -J -L -o /webui/release.zip "$(curl -f -s -L https://api.github.com/repos/CzBiX/qb-web/releases | grep -o "http.*qb-web-.*zip" | head -1)" > /dev/null
            ;;

    esac || { bashio::log.warning "$CUSTOMUI could not be downloaded, please raise an issue on the github repository. The default UI will be used" && exit 0; }

    ### Install WebUI
    mkdir -p /webui/"$CUSTOMUI"
    unzip -q /webui/release.zip -d /webui/"$CUSTOMUI"
    rm /webui/*.zip
    CUSTOMUIDIR="$(dirname "$(find /webui/"$CUSTOMUI" -iname "public" -type d)")"
    sed -i "$LINE i\WebUI\\\AlternativeUIEnabled=true" "$CONFIG_LOCATION"/qBittorrent.conf
    sed -i "$LINE i\WebUI\\\RootFolder=$CUSTOMUIDIR" "$CONFIG_LOCATION"/qBittorrent.conf
    # Set ingress ui
    if [[ "$CUSTOMUI" != qbit-matUI ]]; then
        sed -i "s=/vuetorrent/public/=$CUSTOMUIDIR/public/=g" /etc/nginx/servers/ingress.conf || true
        sed -i "s=vue.torrent=$CUSTOMUI.torrent=g" /etc/nginx/servers/ingress.conf || true
    fi
fi

##########
# CLOSE  #
##########

if grep -q "yify.foo" "$CONFIG_LOCATION"/qBittorrent.conf; then
    bashio::log.warning "yify.foo found in qBittorrent.conf, this is a safety issue. It is removed now, but you should check your configuration."
    sed -i '/yify.foo/d' "$CONFIG_LOCATION"/qBittorrent.conf
fi

bashio::log.info "Default username/password : $USERNAME/homeassistant"
bashio::log.info "Configuration can be found in $CONFIG_LOCATION"