#!/bin/bash

# Usage:
#     ./update-release sdk-version runtime-version [--bug bug-id] [--tarball tarball-name]

set -euo pipefail
IFS=$'\n\t'

print_usage() {
    echo " Usage:"
    echo "     ./update-release sdk-version runtime-version [--bug bug-id] [--tarball tarball-name]"
}

user_provided_tarball_name=""

positional_args=()
bug_ids=()
while [[ "$#" -gt 0 ]]; do
    arg="$1"
    case "${arg}" in
        --bug)
            bug_ids+=("$2")
            shift;
            shift;
            ;;
        -h|--help)
            print_usage
            exit 0
            ;;
        --tarball)
            user_provided_tarball_name="$2"
            shift;
            shift;
            ;;
        *)
            positional_args+=("$1")
            shift
            ;;
    esac
done

spec_files=( ./*.spec )
spec_file="${spec_files[0]}"

sdk_version=${positional_args[0]:-}
if [[ -z ${sdk_version} ]]; then
    echo "error: missing sdk version"
    exit 1
fi

runtime_version=${positional_args[1]:-}
if [[ -z ${runtime_version} ]]; then
    echo "error: missing runtime version"
    exit 1
fi

host_version="$runtime_version"

tag=v${sdk_version}-SDK

if [[ -f "dotnet-${tag}-original.tar.gz" ]]; then
    echo "dotnet-${tag}-original.tar.gz alredy exists, not rebuilding tarball"
else
    if [[ -n "${user_provided_tarball_name}" ]]; then
        ./rename-tarball "$user_provided_tarball_name" "dotnet-${tag}-original.tar.gz"
    elif [[ -f "dotnet-${sdk_version}-SDK.tar.gz" ]]; then
        ./rename-tarball "dotnet-${sdk_version}-SDK.tar.gz" "dotnet-${tag}-original.tar.gz"
    elif [[ -f "dotnet-${runtime_version}.tar.gz" ]]; then
        ./rename-tarball "dotnet-${runtime_version}.tar.gz" "dotnet-${tag}-original.tar.gz"
    fi
fi

if [[ ! -f "dotnet-${tag}.tar.gz" ]]; then
    ./build-dotnet-tarball "${tag}"
fi

set -x

sed -i -E "s|^%global host_version [[:digit:]]\.[[:digit:]]\.[[:digit:]]+|%global host_version ${host_version}|" "$spec_file"
sed -i -E "s|^%global runtime_version [[:digit:]]\.[[:digit:]]\.[[:digit:]]+|%global runtime_version ${runtime_version}|" "$spec_file"
sed -i -E "s|^%global sdk_version [[:digit:]]\.[[:digit:]]\.[[:digit:]][[:digit:]][[:digit:]]|%global sdk_version ${sdk_version}|" "$spec_file"

comment="Update to .NET SDK ${sdk_version} and Runtime ${runtime_version}"
for bug_id in "${bug_ids[@]}"; do
    comment="$comment
- Resolves: RHBZ#$bug_id"
done

rpmdev-bumpspec --comment="$comment" "$spec_file"

# Reset release to 1 in 'Release' tag
sed -i -E 's|^Release:        [[:digit:]]+%|Release:        1%|' "$spec_file"
# Reset Release in changelog comment
# See https://stackoverflow.com/questions/18620153/find-matching-text-and-replace-next-line
sed -i -E '/^%changelog$/!b;n;s/-[[:digit:]]+$/-1/' "$spec_file"