#!/usr/bin/env bash
# This test installs a Zulip production environment (from the release
# tarball from production-build).
set -e
set -x

usage() {
    cat <<'EOF'
Usage:
  production-install
  production-install --test-custom-db
  production-install --help

Options:
  --test-custom-db
      This will instruct the install test to be run with a custom database name and user.

EOF
}

# Shell option parsing.
args="$(getopt -o '' --long help,test-custom-db -n "$0" -- "$@")"
eval "set -- $args"
while true; do
    case "$1" in
        --help)
            usage
            exit 0
            ;;

        --test-custom-db)
            TEST_CUSTOM_DB=1
            shift
            ;;
        --)
            shift
            break
            ;;
    esac
done

ZULIP_PATH=/root/zulip-latest
mkdir -p "$ZULIP_PATH"
tar -xf /tmp/zulip-server-test.tar.gz -C "$ZULIP_PATH" --strip-components=1

# Do an apt upgrade to start with an up-to-date machine
APT_OPTIONS=(-o 'Dpkg::Options::=--force-confdef' -o 'Dpkg::Options::=--force-confold')
apt-get update

if ! apt-get dist-upgrade -y "${APT_OPTIONS[@]}"; then
    echo "\`apt-get dist-upgrade\`: Failure occurred while trying to perform distribution upgrade, Retrying..."
    apt-get dist-upgrade -y "${APT_OPTIONS[@]}"
fi

os_info="$(
    . /etc/os-release
    printf '%s\n' "$ID" "$VERSION_ID"
)"
{
    read -r os_id
    read -r os_version_id
} <<<"$os_info"

# Pin PostgreSQL on Ubuntu 22.04, so we can test upgrading it
if [ "$os_id $os_version_id" = 'ubuntu 22.04' ]; then
    export POSTGRESQL_VERSION=14
fi

# Install
if [ -z "$TEST_CUSTOM_DB" ]; then
    echo "Testing production install with default database name and user."
    "$ZULIP_PATH"/scripts/setup/install --self-signed-cert --hostname 127.0.0.1 --email ci@example.com
else
    echo "Testing production install with custom database name and user."
    "$ZULIP_PATH"/scripts/setup/install --self-signed-cert --hostname 127.0.0.1 --email ci@example.com --postgresql-database-user zulipcustomuser --postgresql-database-name zulipcustomdb
fi

if [ -n "${POSTGRESQL_VERSION:-}" ]; then
    if [ "$(crudini --get /etc/zulip/zulip.conf postgresql version)" != "$POSTGRESQL_VERSION" ]; then
        echo "Installer did not install the PostgreSQL $POSTGRESQL_VERSION that we asked for!"
        exit 1
    fi
    if ! su - zulip -c "psql -tc 'select version()'" | grep -q "^ PostgreSQL $POSTGRESQL_VERSION\."; then
        echo "Installed PostgreSQL is not actually PostgreSQL $POSTGRESQL_VERSION!"
        exit 1
    fi
fi

echo "Production installation complete!"
exit 0