#!/usr/bin/env bash
#
# Batch render all 20 Week 1 Reels videos.
# Usage: bash scripts/render-week1.sh [--concurrency N]
#
# Options:
#   --concurrency N   Number of parallel renders (default: 2)
#   --ids ID1,ID2     Comma-separated list of specific IDs to render
#
set -euo pipefail

CONCURRENCY=${1:-2}
OUT_DIR="out/week1"
mkdir -p "$OUT_DIR"

IDS=(
  V03-H01
  V10-H01
  V03-H02
  V10-H02
  V03-H03
  V17-H01
  V17-H02
  V06-H01
  V08-H01
  V05-LA-01
  V05-NY-01
  V05-TX-01
  V05-CA-01
  V08-LA-01
  V04-H01
  V20-H01
  V14-H01
  V04-H02
  V02-H01
  V19-H01
)

# Parse optional --ids flag
if [[ "${1:-}" == "--ids" ]]; then
  IFS=',' read -ra IDS <<< "${2:-}"
  shift 2
fi

TOTAL=${#IDS[@]}
DONE=0
FAILED=0

echo ""
echo "=== SportsTime Week 1 Batch Render ==="
echo "  Videos: $TOTAL"
echo "  Output: $OUT_DIR/"
echo "  Concurrency: $CONCURRENCY"
echo ""

render_one() {
  local id=$1
  local out="$OUT_DIR/${id}.mp4"
  echo "[START] $id → $out"
  if npx remotion render "$id" "$out" --log=error 2>&1; then
    echo "[DONE]  $id ✓"
    return 0
  else
    echo "[FAIL]  $id ✗"
    return 1
  fi
}

export -f render_one
export OUT_DIR

# Run renders with controlled concurrency using xargs
printf '%s\n' "${IDS[@]}" | xargs -P "$CONCURRENCY" -I {} bash -c 'render_one "$@"' _ {}

echo ""
echo "=== Render Complete ==="
echo "  Output: $OUT_DIR/"
ls -lh "$OUT_DIR"/*.mp4 2>/dev/null || echo "  (no .mp4 files found - check errors above)"