#!/usr/bin/env bash

set -eux

LOG_DIR=/var/log/mullvad-vpn

mkdir -p $LOG_DIR
chmod 755 $LOG_DIR
exec 2>&1 > $LOG_DIR/preinstall.log

echo "Running preinstall at $(date)"

# Uninstall <=2018.1 versions of the app
OLD_INSTALL_DIR="/Applications/MullvadVPN.app"
if [ -d "$OLD_INSTALL_DIR" ]; then
    echo "Found old Mullvad VPN install at $OLD_INSTALL_DIR. Stopping and uninstalling"
    pkill MullvadVPN || echo "Unable to kill MullvadVPN, not running?"
    pkill mullvad-daemon || echo "Unable to kill mullvad-daemon, not running?"
    sleep 0.5
    rm -r "$OLD_INSTALL_DIR"
fi

# Migrate settings from <=2018.1 paths
OLD_SETTINGS_DIR="$HOME/Library/Application Support/mullvad-daemon"
NEW_SETTINGS_DIR="/etc/mullvad-vpn"
if [ -d "$OLD_SETTINGS_DIR" ]; then
    echo "Found old setting dir $OLD_SETTINGS_DIR. Moving to $NEW_SETTINGS_DIR"
    mkdir -p "$NEW_SETTINGS_DIR"
    mv "$OLD_SETTINGS_DIR/settings.json" "$NEW_SETTINGS_DIR/settings.json" || \
        echo "Unable to migrate settings, not present in old dir?"
    rm -rf "$OLD_SETTINGS_DIR"
fi

# Migrate settings from <=2018.2-betaX paths
OLD_SETTINGS_DIR="/etc/mullvad-daemon"
NEW_SETTINGS_DIR="/etc/mullvad-vpn"
if [ -d "$OLD_SETTINGS_DIR" ]; then
    echo "Found old setting dir $OLD_SETTINGS_DIR. Moving to $NEW_SETTINGS_DIR"
    mkdir -p "$NEW_SETTINGS_DIR"
    mv "$OLD_SETTINGS_DIR/settings.json" "$NEW_SETTINGS_DIR/settings.json" || \
        echo "Unable to migrate settings, not present in old dir?"
    rm -rf "$OLD_SETTINGS_DIR"
fi

# Delete logs from <=2018.1 paths
OLD_LOG_DIR="$HOME/Library/Logs/MullvadVPN"
if [ -d "$OLD_LOG_DIR" ]; then
    echo "Found old log dir $OLD_LOG_DIR. Deleting"
    rm -rf "$OLD_LOG_DIR"
fi

# Delete logs from <=2018.2-betaX paths
OLD_LOG_DIR="/var/log/mullvad-daemon"
if [ -d "$OLD_LOG_DIR" ]; then
    echo "Found old log dir $OLD_LOG_DIR. Deleting"
    rm -rf "$OLD_LOG_DIR"
fi

# Migrate cache files from <=2018.1 paths
OLD_CACHE_DIR="$HOME/Library/Caches/mullvad-daemon"
NEW_CACHE_DIR="/var/root/Library/Caches/mullvad-vpn"
if [ -d "$OLD_CACHE_DIR" ]; then
    echo "Found old cache dir at $OLD_CACHE_DIR, moving to $NEW_CACHE_DIR"
    mkdir -p "$NEW_CACHE_DIR"
    mv "$OLD_CACHE_DIR"/* "$NEW_CACHE_DIR/" || echo "Unable to migrate cache. No cache files?"
    rm -rf "$OLD_CACHE_DIR"
fi

# Migrate cache files from <=2018.2-betaX paths
OLD_CACHE_DIR="/var/root/Library/Caches/mullvad-daemon"
NEW_CACHE_DIR="/var/root/Library/Caches/mullvad-vpn"
if [ -d "$OLD_CACHE_DIR" ]; then
    echo "Found old cache dir at $OLD_CACHE_DIR, moving to $NEW_CACHE_DIR"
    mkdir -p "$NEW_CACHE_DIR"
    mv "$OLD_CACHE_DIR"/* "$NEW_CACHE_DIR/" || echo "Unable to migrate cache. No cache files?"
    rm -rf "$OLD_CACHE_DIR"
fi

# TODO: Remove after 2019.2 has been released
rm "$NEW_CACHE_DIR/relays.json" || echo "Unable to remove old relay list"