#!/bin/bash
set -euvo pipefail
IFS=$'\n\t'

# Add launchpad to known hosts
ssh-keyscan -t rsa -H git.launchpad.net > ~/.ssh/known_hosts

git config user.name "CI Bot"
git config user.email "rocketchat.buildmaster@git.launchpad.net"

# Determine the channel to push snap to.
if [[ $TRAVIS_TAG =~ ^[0-9]+\.[0-9]+\.[0-9]+-rc\.[0-9]+ ]]; then
    CHANNEL=candidate
    RC_VERSION=$TRAVIS_TAG
elif [[ $TRAVIS_TAG ]]; then
    CHANNEL=stable
    RC_VERSION=$TRAVIS_TAG
else
    CHANNEL=edge
    RC_VERSION=0.73.0-rc.1
fi

echo "Preparing to trigger a snap release for $CHANNEL channel"

cd $PWD/.snapcraft

# Decrypt key
openssl aes-256-cbc -K $encrypted_f5c8ae370556_key -iv $encrypted_f5c8ae370556_iv -in launchpadkey.enc -out launchpadkey -d

# Change permissions
chmod 0600 launchpadkey

# We need some meta data so it'll actually commit.  This could be useful to have for debugging later.
echo "Tag: $TRAVIS_TAG \r\nBranch: $TRAVIS_BRANCH\r\nBuild: $TRAVIS_BUILD_NUMBER\r\nCommit: $TRAVIS_COMMIT" > buildinfo

# Clone launchpad repo for the channel down.
GIT_SSH_COMMAND="ssh -i launchpadkey" git clone -b $CHANNEL git+ssh://rocket.chat.buildmaster@git.launchpad.net/rocket.chat launchpad

# Rarely will change, but just incase we copy it all
cp -r resources buildinfo launchpad/
sed s/#{RC_VERSION}/$RC_VERSION/ snapcraft.yaml > launchpad/snapcraft.yaml

cd launchpad
git add resources snapcraft.yaml buildinfo

# Another place where basic meta data will live for at a glance info
git commit -m "Travis Build: $TRAVIS_BUILD_NUMBER Travis Commit: $TRAVIS_COMMIT"

# Push up up to the branch of choice.
GIT_SSH_COMMAND="ssh -i ../launchpadkey" git push origin $CHANNEL

# Clean up
cd ..
rm -rf launchpadkey launchpad