#!/usr/bin/env bash

###
# Script Name:  install-containerd-helpers
#
# Description: A library that containers helpers to install containerd on different
#              distributions based on a package manager
###
set -x extglob

# Steps taken from: https://docs.docker.com/install/linux/docker-ce/centos/
function install_rpm_containerd() {
	if [ "${PACKAGE_REPO}" = "stage" ]; then
		REPO_URL="https://download-stage.docker.com/linux/${DIST_ID}/docker-ce-staging.repo"
	else
		REPO_URL="https://download.docker.com/linux/${DIST_ID}/docker-ce.repo"
	fi

	# Install containerd dependency for non-zypper dependecies
	echo "[DEBUG] Installing engine dependencies from ${REPO_URL}"

	# Note: we enable test channel to be able to test non-stable containerd packages as well.
	# Once a containerd package becomes stable it will also be available in the test channel,
	# so this logic works for both cases.
	# (See also same logic in install_debian_containerd)

	if command -v dnf5; then
		dnf --version

		# FIXME(thaJeztah); strip empty lines as workaround for https://github.com/rpm-software-management/dnf5/issues/1603
		TMP_REPO_FILE="$(mktemp --dry-run)"
		curl -fsSL "${REPO_URL}" | tr -s '\n' > "${TMP_REPO_FILE}"
		dnf config-manager addrepo --save-filename=docker-ce.repo  --overwrite --from-repofile="${TMP_REPO_FILE}"
		rm -f "${TMP_REPO_FILE}"
		# dnf config-manager addrepo --save-filename=docker-ce.repo --from-repofile="${REPO_URL}"
		dnf config-manager setopt 'docker-ce-*.enabled=0'
		dnf config-manager setopt 'docker-ce-test.enabled=1'
		dnf makecache
	elif command -v dnf; then
		dnf --version

		dnf config-manager --add-repo "${REPO_URL}"
		dnf config-manager --set-disabled 'docker-ce-*'
		dnf config-manager --set-enabled 'docker-ce-test'
		dnf makecache
	else
		yum-config-manager --add-repo "${REPO_URL}"
		yum-config-manager --disable 'docker-ce-*'
		yum-config-manager --enable 'docker-ce-test'
		yum makecache
	fi
}

# Steps taken from: https://docs.docker.com/install/linux/docker-ce/ubuntu/
function install_debian_containerd() {
	if [ "${PACKAGE_REPO}" = "stage" ]; then
		REPO_URL="https://download-stage.docker.com/linux/${DIST_ID}"
	else
		REPO_URL="https://download.docker.com/linux/${DIST_ID}"
	fi

	echo "[DEBUG] Installing engine dependencies from ${REPO_URL}"

	#TODO include this step in the get.docker.com installation script
	# Make sure ca-certificates are up-to-date
	update-ca-certificates -f

	curl -fsSL "${REPO_URL}/gpg" | apt-key add -

	if [ "${DIST_VERSION}" = "sid" ]; then
		echo 'Debian sid ("unstable") cannot be used for packaging: replace with the actual codename'
		exit 1
	fi
	ARCH=$(dpkg --print-architecture)

	# Note: we enable test channel to be able to test non-stable containerd packages as well.
	# Once a containerd package becomes stable it will also be available in the test channel,
	# so this logic works for both cases.
	# (See also same logic in install_rpm_containerd)
	echo "deb [arch=${ARCH}] ${REPO_URL} ${DIST_VERSION} test" > /etc/apt/sources.list.d/docker.list

	apt-get update
}