#!/usr/bin/env bash

if [[ $EUID -ne 0 ]]; then
   echo "This script must be run as root"
   exit 1
fi

# Run system update first
chmod a+x update.sh
./update.sh

if [ ! -f ./docker-compose.yml ]; then
    cp ./docker-compose.sample.yml ./docker-compose.yml
fi

# Dump MySQL data into fixtures folder
MYSQL_USERNAME=`awk -F "=" '/db_username/ {print $2}' app/env.ini | tr -d ' '`
MYSQL_PASSWORD=`awk -F "=" '/db_password/ {print $2}' app/env.ini | tr -d ' '`

mysqldump --add-drop-table -u$MYSQL_USERNAME -p$MYSQL_PASSWORD azuracast > util/fixtures/01_docker_migration.sql

read -n 1 -s -r -p "MySQL exported. Press any key to continue (Export InfluxDB)..."

# Dump InfluxDB data
mkdir -p /var/azuracast/migration

influxd backup /var/azuracast/migration
influxd backup -database stations /var/azuracast/migration

read -n 1 -s -r -p "InfluxDB exported. Press any key to continue (Install Docker)..."

# Install Docker
wget -qO- https://get.docker.com/ | sh

COMPOSE_VERSION=`git ls-remote https://github.com/docker/compose | grep refs/tags | grep -oP "[0-9]+\.[0-9][0-9]+\.[0-9]+$" | tail -n 1`
sudo sh -c "curl -L https://github.com/docker/compose/releases/download/${COMPOSE_VERSION}/docker-compose-`uname -s`-`uname -m` > /usr/local/bin/docker-compose"
sudo chmod +x /usr/local/bin/docker-compose
sudo sh -c "curl -L https://raw.githubusercontent.com/docker/compose/${COMPOSE_VERSION}/contrib/completion/bash/docker-compose > /etc/bash_completion.d/docker-compose"

# Pull Docker images
docker-compose pull

docker-compose -f docker-compose.yml -f docker-compose.migrate.yml run --rm migrate_influx

read -n 1 -s -r -p "InfluxDB data migrated to Docker. Press any key to continue (Uninstall Traditional AzuraCast)..."

# Run traditional uninstaller
chmod a+x uninstall.sh
./uninstall.sh

read -n 1 -s -r -p "Uninstall complete. Press any key to continue (Install AzuraCast in Docker)..."

# Run Docker AzuraCast-specific installer
docker-compose -f docker-compose.yml -f docker-compose.migrate.yml run --rm migrate_stations
docker-compose -f docker-compose.yml -f docker-compose.migrate.yml run --rm cli azuracast_install

# Spin up Docker
docker-compose up -d

# Docker cleanup
docker-compose rm -f

docker volume prune -f
docker rmi $(docker images | grep "none" | awk '/ / { print $3 }')