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

# Erwartet: $TAG, $GITEA_URL, $GITEA_TOKEN, $GITEA_OWNER, $GITEA_REPO

if [[ -z "${TAG:-}" ]]; then
  echo "❌ TAG is not set."
  exit 1
fi

VERBOSE="${VERBOSE:-false}"

# Funktion zur bedingten curl-Ausgabe
curl_exec() {
  if [[ "$VERBOSE" == "true" ]]; then
    curl -v "$@"
  else
    curl -s "$@"
  fi
}

# Defaults (können durch INPUT_* oder ENV überschrieben werden)
GITEA_URL="${INPUT_GITEA_URL:-${GITEA_URL:-https://gitea.example.tld}}"
GITEA_TOKEN="${INPUT_GITEA_TOKEN:-${GITEA_TOKEN:-}}"
GITEA_OWNER="${INPUT_GITEA_OWNER:-${GITEA_OWNER:-${GITHUB_REPOSITORY%%/*}}}"
GITEA_REPO="${INPUT_GITEA_REPO:-${GITEA_REPO:-${GITHUB_REPOSITORY##*/}}}"

# Zielverzeichnis vorbereiten
OUT_DIR="/tmp/gitea_release_${TAG}"
mkdir -p "$OUT_DIR/assets"

# Release-ID abrufen
RELEASE_META=$(curl_exec -H "Authorization: token $GITEA_TOKEN" \
  "$GITEA_URL/api/v1/repos/$GITEA_OWNER/$GITEA_REPO/releases/tags/$TAG")

RELEASE_ID=$(echo "$RELEASE_META" | jq -r '.id')
if [[ -z "$RELEASE_ID" || "$RELEASE_ID" == "null" ]]; then
  echo "❌ Release '$TAG' nicht gefunden."
  exit 1
fi

# Vollständige Release-Details abrufen
RELEASE_JSON=$(curl_exec -H "Authorization: token $GITEA_TOKEN" \
  "$GITEA_URL/api/v1/repos/$GITEA_OWNER/$GITEA_REPO/releases/$RELEASE_ID")

echo "$RELEASE_JSON" > "$OUT_DIR/release.json"
echo "✅ Metadaten gespeichert unter: $OUT_DIR/release.json"

# Assets herunterladen
ASSETS=$(echo "$RELEASE_JSON" | jq -c '.assets[]?')

for asset in $ASSETS; do
  NAME=$(echo "$asset" | jq -r '.name')
  URL=$(echo "$asset" | jq -r '.browser_download_url')

  echo "⬇ Lade Asset '$NAME' herunter ..."
  if [[ "$VERBOSE" == "true" ]]; then
    curl -L -H "Authorization: token $GITEA_TOKEN" "$URL" -o "$OUT_DIR/assets/$NAME"
  else
    curl -sL -H "Authorization: token $GITEA_TOKEN" "$URL" -o "$OUT_DIR/assets/$NAME"
  fi

done

echo "GT_RSA_RELEASE_DIR=$OUT_DIR" >> "$GITHUB_ENV"

echo "✅ Alle Assets gespeichert unter: $OUT_DIR/assets"
echo "✅ Release-Metadaten gespeichert unter: $OUT_DIR/release.json"