#!/usr/bin/env bash
# scripts/render_deck.sh — render a Marp deck to HTML + PPTX, commit both to git.
# REQ-228 (v1.18): PPTX is now a first-class committed artifact + release attachment.
#
# Usage:
#   bash scripts/render_deck.sh <deck-name>
#   bash scripts/render_deck.sh nova-autonomous-cloud-delivery
#
# Renders:
#   docs/presentations/<deck-name>-marp.md → docs/presentations/<deck-name>.html (committed)
#                                       → docs/presentations/<deck-name>.pptx (committed, binary)
#
# The PPTX is also attached to the current phase's Gitea release via
# scripts/attach_release_asset.py (call separately after ship, or this script
# will invoke it if NOVA_GITEA_RELEASE_ID is set).
set -euo pipefail

DECK="${1:?Usage: render_deck.sh <deck-name>}"
cd "$(git rev-parse --show-toplevel)"

SRC="docs/presentations/${DECK}-marp.md"
HTML="docs/presentations/${DECK}.html"
PPTX="docs/presentations/${DECK}.pptx"

if [ ! -f "$SRC" ]; then
  echo "ERROR: source deck $SRC not found" >&2; exit 1
fi

CHROME=""
for c in \
  /root/.cache/ms-playwright/chromium-1217/chrome-linux64/chrome \
  /usr/bin/chromium \
  /usr/bin/chromium-browser \
  /usr/bin/google-chrome; do
  if [ -x "$c" ]; then CHROME="$c"; break; fi
done
if [ -z "$CHROME" ]; then
  echo "WARNING: no Chrome/Chromium found — skipping render (HTML/PPTX will need manual re-render)" >&2
  exit 0
fi
export CHROME_PATH="$CHROME"

echo "Rendering HTML → $HTML"
npx --yes @marp-team/marp-cli@latest --allow-local-files "$SRC" -o "$HTML" 2>&1 | tail -3

echo "Rendering PPTX → $PPTX"
npx --yes @marp-team/marp-cli@latest --allow-local-files "$SRC" -o "$PPTX" 2>&1 | tail -3

git add "$HTML" "$PPTX"
echo "Staged $HTML + $PPTX for commit."

if [ -n "${NOVA_GITEA_RELEASE_ID:-}" ]; then
  echo "Attaching PPTX to Gitea release $NOVA_GITEA_RELEASE_ID..."
  python3 scripts/attach_release_asset.py "$PPTX" "$NOVA_GITEA_RELEASE_ID" || \
    echo "WARNING: attach failed — PPTX is still committed; attach manually."
fi