#!/bin/bash
# Signiert das fertige DMG mit Mawaris Sparkle-Schlüssel (Schlüsselbund, Konto "mawari")
# und schreibt build/appcast.xml. Danach: bash Tools/publish.sh
#
# Aufruf: bash Tools/make-appcast.sh ["Was ist neu – ein Satz"]
set -euo pipefail
cd "$(dirname "$0")/.."

BASE_URL="https://update.zielke.studio/mawari"
VERSION=$(grep -m1 'MARKETING_VERSION:' project.yml | sed -E 's/.*MARKETING_VERSION: *"?([^"]+)"?/\1/')
BUILD=$(grep -m1 'CURRENT_PROJECT_VERSION:' project.yml | sed -E 's/.*CURRENT_PROJECT_VERSION: *"?([^"]+)"?/\1/')
MIN_OS=$(grep -m1 'macOS:' project.yml | sed -E 's/.*macOS: *"?([^"]+)"?/\1/')
DMG="build/Mawari-${VERSION}.dmg"
NOTES="${1:-}"

SIGN_UPDATE=$(find build/dd build/dd-release -path "*artifacts/sparkle/Sparkle/bin/sign_update" 2>/dev/null | head -1)
[ -x "$SIGN_UPDATE" ] || { echo "Fehler: sign_update fehlt – erst einmal bauen." >&2; exit 1; }
[ -f "$DMG" ] || { echo "Fehler: $DMG fehlt – erst Tools/build-dmg.sh." >&2; exit 1; }

SIG_LINE=$("$SIGN_UPDATE" --account mawari "$DMG")
ED_SIG=$(echo "$SIG_LINE" | sed -E 's/.*sparkle:edSignature="([^"]+)".*/\1/')
LENGTH=$(echo "$SIG_LINE" | sed -E 's/.*length="([^"]+)".*/\1/')
[ -n "$ED_SIG" ] && [ "$ED_SIG" != "$SIG_LINE" ] || { echo "Fehler beim Signieren: $SIG_LINE" >&2; exit 1; }

DESC=""
[ -n "$NOTES" ] && DESC="<description><![CDATA[<p>${NOTES}</p>]]></description>"

cat > build/appcast.xml <<XML
<?xml version="1.0" encoding="utf-8"?>
<rss version="2.0" xmlns:sparkle="http://www.andymatuschak.org/xml-namespaces/sparkle">
  <channel>
    <title>Mawari</title>
    <link>${BASE_URL}/appcast.xml</link>
    <description>Updates für Mawari</description>
    <language>de</language>
    <item>
      <title>${VERSION}</title>
      ${DESC}
      <pubDate>$(LC_ALL=C date -u '+%a, %d %b %Y %H:%M:%S +0000')</pubDate>
      <sparkle:version>${BUILD}</sparkle:version>
      <sparkle:shortVersionString>${VERSION}</sparkle:shortVersionString>
      <sparkle:minimumSystemVersion>${MIN_OS}</sparkle:minimumSystemVersion>
      <enclosure url="${BASE_URL}/Mawari-${VERSION}.dmg" sparkle:edSignature="${ED_SIG}" length="${LENGTH}" type="application/octet-stream"/>
    </item>
  </channel>
</rss>
XML
echo "==> build/appcast.xml für Version $VERSION (Build $BUILD) geschrieben"