#!/usr/bin/env bash
# apply-26-incident-fixes.sh
#
# Re-applies the three server-state fixes from docs/26 if branding.xml /
# encoding.xml drift back to broken state (e.g. after a Jellyfin restore).
#
# 1. CustomCss: Cineplex hardcoded "Abspielen" → "Play"
# 2. CustomCss: Backdrop transparent-scope using :has() (BLACK-PASS occluded backdrop layer)
# 3. encoding.xml: EnableThrottling=false + EnableSegmentDeletion=false (kills HLS 499)
#
# Usage:  ssh user@nullstone "$(cat bin/apply-26-incident-fixes.sh)"
# Idempotent: re-running is safe.

set -euo pipefail

# 3+5. encoding.xml — disable throttling + segment deletion (HLS 499)
#                    AND disable software tonemapping (CPU-only nullstone
#                    cannot sustain real-time 4K HDR tonemap+x264, ffmpeg
#                    runs at ~0.5x → 18s wait time before video starts;
#                    R&M is fake-HDR per doc 21 anyway, so no visual loss)
for cfg in /home/docker/jellyfin/config/config/encoding.xml \
           /home/docker/jellyfin-dev/config/config/encoding.xml; do
  [ -f "$cfg" ] || continue
  cp -n "$cfg" "$cfg.bak.pre-doc26" || true
  sed -i \
    -e 's|<EnableThrottling>true</EnableThrottling>|<EnableThrottling>false</EnableThrottling>|' \
    -e 's|<EnableSegmentDeletion>true</EnableSegmentDeletion>|<EnableSegmentDeletion>false</EnableSegmentDeletion>|' \
    -e 's|<EnableTonemapping>true|<EnableTonemapping>false|' \
    -e 's|<EnableVppTonemapping>true|<EnableVppTonemapping>false|' \
    "$cfg"
  echo "[+] patched $cfg"
done

# 1+2. branding.xml CustomCss — Abspielen + backdrop transparent-scope
patch_branding() {
  local cfg="$1"
  [ -f "$cfg" ] || return 0
  if grep -q "ARRFLIX 2026-05-09" "$cfg"; then
    echo "[=] $cfg already has doc-26 patch"
    return 0
  fi
  cp -n "$cfg" "$cfg.bak.pre-doc26" || true
  python3 - <<PY
p = "$cfg"
s = open(p).read()
patch = """

/* ARRFLIX 2026-05-09 — incident fixes (see docs/26-incident-2026-05-09-...).
   INC1: Cineplex theme hardcodes German "Abspielen" via content: ::after.
   INC1: BLACK-PASS occludes backdrop; transparent-scope via :has().
   INC2: pin backdrop position:fixed so it persists across scroll.
   INC3: extend transparent-scope through detail-page sub-sections so
         section wrappers don't paint over the pinned backdrop.
   INC4: override the 2026-05-08 .emby-scroller=#000 rule on detail page
         (it was painting a black band behind every carousel — most visible
         on admin-only "More from Season" / "More Like This"). */
.mainDetailButtons .material-icons.play_arrow::after {
  content: "Play" !important;
}
.itemDetailPage,
.layout-desktop:has(.itemDetailPage),
.layout-mobile:has(.itemDetailPage),
.layout-tv:has(.itemDetailPage),
.mainAnimatedPages:has(.itemDetailPage),
.pageContainer:has(.itemDetailPage),
.padded-bottom-page:has(.itemDetailPage),
.libraryPage:has(.itemDetailPage),
.absolutePageTabContent:has(.itemDetailPage) {
  background-color: transparent !important;
  background: transparent !important;
}
.layout-desktop .backdropContainer,
.layout-mobile .backdropContainer,
.layout-tv .backdropContainer,
.layout-desktop .backgroundContainer,
.layout-mobile .backgroundContainer,
.layout-tv .backgroundContainer {
  position: fixed !important;
  top: 0 !important;
  left: 0 !important;
  width: 100vw !important;
  height: 100vh !important;
  z-index: 0 !important;
}
.layout-desktop .backgroundContainer.withBackdrop::after,
.layout-mobile .backgroundContainer.withBackdrop::after,
.layout-tv .backgroundContainer.withBackdrop::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(
    180deg,
    rgba(0,0,0,0.00) 0%,
    rgba(0,0,0,0.00) 35%,
    rgba(0,0,0,0.40) 70%,
    rgba(0,0,0,0.75) 100%
  );
  pointer-events: none;
  z-index: 1;
}
.itemDetailPage,
.itemDetailPage > *,
.detailPageContent,
.detailPagePrimaryContainer,
.detailPageWrapperContainer,
.detailPageContent > *,
.detailVerticalSection,
.detailVerticalSection-extrabottompadding,
.detailSection,
.detailSectionContent,
.itemsContainer,
.scrollSlider,
.scrollSliderContainer,
.padded-bottom-page,
.detailPagePrimaryContent,
.sectionTitleContainer,
.detailRibbon,
.subtitleAudioContainer,
.detailPageRoot {
  background-color: transparent !important;
  background: transparent !important;
}
/* INC4: 2026-05-08 home-page "kill gray band" rule paints .emby-scroller
   #000 unscoped — that's the OPAQUE wrapper around every carousel inside
   .itemDetailPage. Override back to transparent on detail page only. */
.itemDetailPage .emby-scroller,
.itemDetailPage .emby-scroller-container,
.itemDetailPage .verticalSection,
.itemDetailPage .padded-top-focusscale,
.itemDetailPage .padded-bottom-focusscale,
.itemDetailPage .moreFromSeasonSection,
.itemDetailPage .moreFromArtistSection,
.itemDetailPage .scrollSliderContainer,
.itemDetailPage .scrollButtonContainer {
  background-color: transparent !important;
  background: transparent !important;
}
/* INC7 2026-05-09: BLACK-PASS paints .libraryPage #000; #videoOsdPage uses
   that class so the OSD page covers <video> with opaque black. <video>
   decodes frames (canvas drawImage luma=84) but visually 100% black until
   we exempt the OSD page from BLACK-PASS via :has(.htmlVideoPlayer). */
.libraryPage:has(.htmlVideoPlayer),
.libraryPage#videoOsdPage,
#videoOsdPage,
#videoOsdPage .pageContainer,
#videoOsdPage .layout-desktop,
#videoOsdPage .mainAnimatedPages {
  background-color: transparent !important;
  background: transparent !important;
}
/* INC5: kill grey scrollbar groove at page bottom (Chrome native scrollbar
   default = grey track; appears as ~15px strip at viewport bottom). Style
   all scrollbars to ARRFLIX palette. */
*::-webkit-scrollbar {
  background: #000000 !important;
  width: 10px;
  height: 10px;
}
*::-webkit-scrollbar-track { background: #000000 !important; }
*::-webkit-scrollbar-thumb {
  background: #2a2a2a !important;
  border-radius: 5px;
}
*::-webkit-scrollbar-thumb:hover { background: #3a3a3a !important; }
*::-webkit-scrollbar-corner { background: #000000 !important; }
* { scrollbar-color: #2a2a2a #000000; }
html, body { scrollbar-color: #2a2a2a #000000; }
"""
s = s.replace("</CustomCss>", patch + "</CustomCss>")
open(p, "w").write(s)
PY
  echo "[+] patched $cfg"
}

patch_branding /home/docker/jellyfin/config/config/branding.xml
patch_branding /home/docker/jellyfin-dev/config/config/branding.xml

# Restart so changes take effect
docker restart jellyfin jellyfin-dev 2>/dev/null || docker restart jellyfin

echo "[*] Done. Verify with bin/headless-test.py."