#!/bin/bash
# This hook builds pixelplanet after a push, and deploys it
# If it is the production branch, it will deploy it on the life system, and other branch will get deployed to the dev-canvas (a second canvas that is running on the server)
# Update messages will get sent via the Webhooks to Discord
#
# To set up a server to use this, you have to go through the building steps manually first.
# This hook just builds the canvas, it does not install new yarn/npm packages if needed. So this has to be done manually first
# Also keep in mind that running a dev-canvas and a life canvas independently together on one server needs two redis installations.
# tl;dr: Don't just copy that script, try to know how that setup works first
#
#discord webhook for dev canvas
WEBHOOK='https://discordapp.com/api/webhooks/'
#discord webhook for production canvas
PWEBHOOK='https://discordapp.com/api/webhooks/'
#folder for building the canvas (the git repository will get checkout there and the canvas will get buil thtere)
BUILDDIR="pixelplanet-build"
#folder for dev canvas
DEVFOLDER="pixelplanet-dev"
#folder for production canvas
PFOLDER="pixelplanet"
#proxies.json path
PROXYFILE="/proxies.json"

while read oldrev newrev refname
do
    branch=$(git rev-parse --symbolic --abbrev-ref $refname)
    if [ "production" == "$branch" ]; then
        echo "---UPDATING REPO ON PRODUCTION SERVER---"
        GIT_WORK_TREE="$BUILDDIR" GIT_DIR="${BUILDDIR}/.git" git fetch --all
        GIT_WORK_TREE="$BUILDDIR" GIT_DIR="${BUILDDIR}/.git" git reset --hard origin/production
        curl -H "Content-Type: application/json" --data-binary '{ "username": "PixelPlanet Server", "avatar_url": "https://pixelplanet.fun/favicon.ico", "content": "Restarting canvas for Updates..." }' "$PWEBHOOK"
        COMMITS=`git log --pretty=format:'- %s%b' $newrev ^$oldrev`
        COMMITS=`echo "$COMMITS" | sed ':a;N;$!ba;s/\n/\\\n/g'`
        echo "---BUILDING pixelplanet---"
        cd "$BUILDDIR"
        cp "$PROXYFILE" ./
        yarn run build --release
        echo "---RESTARTING CANVAS---"
        cp -r build/* "${PFOLDER}/"
        #cp ecosystem-production.yml "${PFOLDER}/ecosystem.yml"
        cd "$PFOLDER"
        pm2 stop web
        pm2 start ecosystem.yml
        #make backup
        tar -cvJf /backup/pixelplanet-src/pixelplanet-src-`date +%Y%m%d`.tar.xz --exclude=node_modules --exclude=.git -C "${BUILDDIR}/.." "pixelplanet-build"
        #send update message to discord
        curl -H "Content-Type: application/json" --data-binary '{ "username": "PixelPlanet Server", "avatar_url": "https://pixelplanet.fun/favicon.ico", "content": "...Done", "embeds": [{"title": "New Commits", "url": "https://pixelplanet.fun", "description": "'"$COMMITS"'", "color": 15258703}] }' "$PWEBHOOK"
    else
        echo "---UPDATING REPO ON DEV SERVER---"
        pm2 stop web-dev
        GIT_WORK_TREE="$BUILDDIR" GIT_DIR="${BUILDDIR}/.git" git fetch --all
        GIT_WORK_TREE="$BUILDDIR" GIT_DIR="${BUILDDIR}/.git" git reset --hard "origin/$branch"
        curl -H "Content-Type: application/json" --data-binary '{ "username": "PixelPlanet Server", "avatar_url": "https://pixelplanet.fun/favicon.ico", "content": "Restarting pixelplanet development canvas for update..." }' "$WEBHOOK"
        COMMITS=`git log --pretty=format:'- %s%b' $newrev ^$oldrev`
        COMMITS=`echo "$COMMITS" | sed ':a;N;$!ba;s/\n/\\\n/g'`
        echo "---BUILDING pixelplanet---"
        cd "$BUILDDIR"
        cp "$PROXYFILE" ./
        nice -n 19 yarn run build --release
        echo "---RESTARTING CANVAS---"
        cp -r build/* "${DEVFOLDER}/"
        #cp ecosystem-dev.yml "${DEVFOLDER}/ecosystem.yml"
        cd "$DEVFOLDER"
        pm2 start ecosystem.yml
        curl -H "Content-Type: application/json" --data-binary '{ "username": "PixelPlanet Server", "avatar_url": "https://pixelplanet.fun/favicon.ico", "content": "...Done\nhttp://dev.pixelplanet.fun is now on branch '"$branch"'", "embeds": [{"title": "New Commits", "url": "https://pixelplanet.fun", "description": "'"$COMMITS"'", "color": 15258703}] }' "$WEBHOOK"
    fi
done