#!/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 ran 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 [ -f /etc/os-release ]; then
    # This is a temporary hack to test Debian Bullseye systems as
    # though Bullseye was already released, so we don't need to
    # change all of our scripts to parse bullseye/sid.
    check_pretty_name="$(
        . /etc/os-release
        printf '%s\n' "$PRETTY_NAME"
    )"
    { read -r pretty_name; } <<<"$check_pretty_name"

    if [ "$pretty_name" = "Debian GNU/Linux bullseye/sid" ]; then
        echo "VERSION_CODENAME=bullseye" | tee -a >>/etc/os-release
        echo "VERSION_ID=\"11\"" | tee -a >>/etc/os-release
    fi
    # End hack

    os_info="$(
        . /etc/os-release
        printf '%s\n' "$VERSION_CODENAME"
    )"
    { read -r os_version_codename || true; } <<<"$os_info"
fi

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

# Pin to PostgreSQL 10 on Bionic, so we can test upgrading it
if [ "$os_version_codename" = "bionic" ]; then
    export POSTGRESQL_VERSION=10
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 circleci@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 circleci@example.com --postgresql-database-user zulipcustomuser --postgresql-database-name zulipcustomdb
fi

if [ "$os_version_codename" = "bionic" ]; then
    if [ "$(crudini --get /etc/zulip/zulip.conf postgresql version)" != "10" ]; then
        echo "Installer did not install the PostgreSQL 10 that we asked for!"
        exit 1
    fi
fi

echo "Production installation complete!"
exit 0