#!/usr/bin/env bash
set -euo pipefail

root="$(cd "$(dirname "${BASH_SOURCE[0]}")/.." && pwd)"
version="${1:?usage: verify-real-consumers.sh VERSION RELEASE_DIRECTORY}"
release_dir="${2:?usage: verify-real-consumers.sh VERSION RELEASE_DIRECTORY}"
manifest="$root/eng/consumer-revisions.json"
work="$(mktemp -d "${TMPDIR:-/tmp}/rendezvous-consumers.XXXXXX")"
cleanup() {
  rm -rf "$work"
}
trap cleanup EXIT

for command in dotnet git jq python3; do
  command -v "$command" >/dev/null || {
    echo "Required consumer verification command is unavailable: $command" >&2
    exit 1
  }
done

python3 "$root/eng/release_artifacts.py" consumer-config \
  --local-source "$release_dir" \
  --output "$work/NuGet.config"

count="$(jq '.consumers | length' "$manifest")"
for ((index = 0; index < count; index++)); do
  name="$(jq -r ".consumers[$index].name" "$manifest")"
  repository="$(jq -r ".consumers[$index].repository" "$manifest")"
  revision="$(jq -r ".consumers[$index].revision" "$manifest")"
  project_relative="$(jq -r ".consumers[$index].project" "$manifest")"
  checkout="$work/$name"
  git -c init.defaultBranch=main init --quiet "$checkout"
  git -C "$checkout" remote add origin "$repository"
  git -C "$checkout" fetch --quiet --depth 1 origin "$revision"
  GIT_LFS_SKIP_SMUDGE=1 git -C "$checkout" checkout --quiet --detach FETCH_HEAD
  [[ "$(git -C "$checkout" rev-parse HEAD)" == "$revision" ]] || {
    echo "$name did not resolve the pinned consumer revision." >&2
    exit 1
  }

  project="$checkout/$project_relative"
  [[ -f "$project" ]] || {
    echo "$name consumer project does not exist at $project_relative." >&2
    exit 1
  }
  targets="$work/$name.Rendezvous.Consumer.targets"
  cat >"$targets" <<EOF
<Project>
  <ItemGroup Condition="'\$(MSBuildProjectFullPath)' == '$project'">
    <PackageReference Remove="FinalFactory.Rendezvous.Client" />
    <PackageReference Remove="FinalFactory.Rendezvous.Contracts" />
    <PackageReference Include="FinalFactory.Rendezvous.Client" Version="[$version]" />
    <PackageReference Include="FinalFactory.Rendezvous.Contracts" Version="[$version]" />
  </ItemGroup>
</Project>
EOF
  packages="$work/packages-$name"
  dotnet restore "$project" \
    -p:CustomAfterMicrosoftCommonTargets="$targets" \
    -p:RestorePackagesWithLockFile=false \
    -p:RestoreLockedMode=false \
    --packages "$packages" \
    --configfile "$work/NuGet.config" \
    --force-evaluate
  assets=""
  while IFS= read -r candidate_assets; do
    if grep -Fq "FinalFactory.Rendezvous.Client/$version" "$candidate_assets"; then
      assets="$candidate_assets"
      break
    fi
  done < <(find "$checkout" -path '*/obj/project.assets.json' -type f -print)
  [[ -n "$assets" ]] || {
    echo "$name restore did not produce assets for the injected Rendezvous references." >&2
    exit 1
  }
  python3 "$root/eng/release_artifacts.py" consumer \
    --assets "$assets" \
    --version "$version"
  echo "Verified $name at $revision can pin and restore Rendezvous $version."
done