#!/bin/bash

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

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

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

user_provided_tarball_name=""

rpm_release=1
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
            ;;
        --release-json)
            release_json="$2"
            shift;
            shift;
            ;;
        --tarball)
            user_provided_tarball_name="$2"
            shift;
            shift;
            ;;
        --larger-rpm-release)
            rpm_release="2"
            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"

if [[ "$runtime_version" == "6.0"* ]] || [[ "$runtime_version" == "7.0"* ]] ; then
    tag=v${sdk_version}
else
    tag=v${runtime_version}
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"


if [[ "$runtime_version" == "6.0"* ]] || [[ "$runtime_version" == "7.0"* ]] ; then
    if [[ -f "dotnet-${tag}.tar.gz" ]]; then
        echo "dotnet-${tag}.tar.gz already exists, not rebuilding tarball"
    else
        if [[ -f "dotnet-${tag}-original.tar.gz" ]]; then
            echo "dotnet-${tag}-original.tar.gz alredy exists, not rebuilding tarball"
        else
            if [[ -n "${user_provided_tarball_name}" ]]; then
                cp -a "$user_provided_tarball_name" "dotnet-${tag}-original.tar.gz"
            elif [[ -f "dotnet-${sdk_version}-SDK.tar.gz" ]]; then
                cp -a "dotnet-${sdk_version}-SDK.tar.gz" "dotnet-${tag}-original.tar.gz"
            elif [[ -f "dotnet-${sdk_version}.tar.gz" ]]; then
                cp -a "dotnet-${sdk_version}.tar.gz" "dotnet-${tag}-original.tar.gz"
            elif [[ -f "dotnet-${runtime_version}.tar.gz" ]]; then
                cp -a "dotnet-${runtime_version}.tar.gz" "dotnet-${tag}-original.tar.gz"
            fi
        fi

        ./build-dotnet-tarball "${tag}"
    fi
else
    if [[ -f "dotnet-${tag}.tar.gz" ]]; then
        echo "dotnet-${tag}.tar.gz already exists, not rebuilding tarball"
    elif [[ -n ${user_provided_tarball_name} ]]; then
        tag_without_v=${tag#v}
        cp -a "${user_provided_tarball_name}" dotnet-${tag_without_v}.tar.gz
        cp -a "${user_provided_tarball_name}.sig" dotnet-${tag_without_v}.tar.gz.sig
        cp -a "${release_json}" release.json
    else
        rm -f release.json
        spectool -g "$spec_file"
    fi
fi

comment="Update to .NET SDK ${sdk_version} and Runtime ${runtime_version}"
commit_message="$comment
"
for bug_id in "${bug_ids[@]}"; do
    if [[ "$bug_id" =~ ^[[:digit:]]+$ ]]; then
        comment="$comment
- Resolves: RHBZ#$bug_id"
        commit_message="$commit_message
Resolves: RHBZ#$bug_id"
    else
        comment="$comment
- Resolves: $bug_id"
        commit_message="$commit_message
Resolves: $bug_id"
    fi
done

echo "$commit_message" > git-commit-message

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

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

echo "Done updating sources. Commit message in ./git-commit-message"