#!/usr/bin/env bash
# Builds and packages a tagged release. Used by .github/workflows/release.yml; safe to
# run locally too for a dry run. Does NOT touch manifest.json -- that's published
# separately to the public distribution repo by dev/publish-manifest.sh, since the zip
# this produces gets uploaded there too (release assets on a private repo can't be made
# public on their own in Gitea; see PLAN.md "Release distribution").
#
# Required env vars:
#   VERSION            -- e.g. 0.2.0.0 (must match build.yaml's version)
#   SERVER_URL         -- e.g. https://gitea.mrcynic.site
#   PUBLIC_REPO_OWNER   -- Gitea org/user the *public* distribution repo lives under
#   PUBLIC_REPO_NAME    -- the public distribution repo's name (holds releases + manifest.json)
set -euo pipefail

: "${VERSION:?VERSION env var required, e.g. 0.2.0.0}"
: "${SERVER_URL:?SERVER_URL env var required, e.g. https://gitea.mrcynic.site}"
: "${PUBLIC_REPO_OWNER:?PUBLIC_REPO_OWNER env var required}"
: "${PUBLIC_REPO_NAME:?PUBLIC_REPO_NAME env var required}"

ROOT="$(cd "$(dirname "${BASH_SOURCE[0]}")/.." && pwd)"
cd "$ROOT"

echo "Building Release configuration..."
dotnet build src/JellyfinSyncPlus/JellyfinSyncPlus.csproj -c Release

BUILD_VERSION=$(grep -oP '(?<=^version: ")[^"]*' build.yaml)
if [ "$BUILD_VERSION" != "$VERSION" ]; then
  echo "ERROR: build.yaml version ($BUILD_VERSION) does not match requested VERSION ($VERSION)." >&2
  echo "Update build.yaml's version field to match the git tag before releasing." >&2
  exit 1
fi

mkdir -p release
ZIP_NAME="JellyfinSyncPlus_${VERSION}.zip"
ZIP_PATH="release/${ZIP_NAME}"
rm -f "$ZIP_PATH"
(cd src/JellyfinSyncPlus/bin/Release/net9.0 && zip -j "$ROOT/$ZIP_PATH" JellyfinSyncPlus.dll)

CHECKSUM=$(md5sum "$ZIP_PATH" | awk '{print $1}')
SOURCE_URL="${SERVER_URL}/${PUBLIC_REPO_OWNER}/${PUBLIC_REPO_NAME}/releases/download/v${VERSION}/${ZIP_NAME}"

echo "Packaged $ZIP_PATH"
echo "Checksum: $CHECKSUM"
echo "Source URL: $SOURCE_URL"

# For the next workflow step to pick up without re-deriving them (no-op outside CI).
if [ -n "${GITHUB_OUTPUT:-}" ]; then
  {
    echo "CHECKSUM=${CHECKSUM}"
    echo "SOURCE_URL=${SOURCE_URL}"
    echo "ZIP_PATH=${ZIP_PATH}"
  } >> "$GITHUB_OUTPUT"
fi