#!/bin/bash
set -euo pipefail

ROOT=$(cd "$(dirname "$0")/.." && pwd)
RUNTIME="$ROOT/runtime"
ATTEMPT_ROOT=${ABG_ATTEMPT_ROOT:?ABG_ATTEMPT_ROOT is required}
EVIDENCE=${ABG_EVIDENCE_DIR:?ABG_EVIDENCE_DIR is required}
SOURCE_REVISION=${ABG_SOURCE_REVISION:?ABG_SOURCE_REVISION is required}
ORIGINAL_HOME=${ABG_ORIGINAL_HOME:?ABG_ORIGINAL_HOME is required}
GODOT=${GODOT_BIN:-/Applications/Godot.app/Contents/MacOS/Godot}
TEMPLATE_VERSION=${ABG_GODOT_TEMPLATE_VERSION:-4.6.1.stable}
TEMPLATE_SOURCE="$ORIGINAL_HOME/Library/Application Support/Godot/export_templates/$TEMPLATE_VERSION"
TEMPLATE_PARENT="$HOME/Library/Application Support/Godot/export_templates"
WEB="$EVIDENCE/web"
LOGS="$EVIDENCE/logs"

if [ "$ROOT" != "$ATTEMPT_ROOT/source" ] || [ "$SOURCE_REVISION" = "WORKTREE" ]; then
  echo "runtime Web export requires an immutable run_test_attempt.py Git archive" >&2
  exit 91
fi
if [ ! -x "$GODOT" ] || [ ! -d "$TEMPLATE_SOURCE" ]; then
  echo "Godot or exact Web template is unavailable" >&2
  exit 92
fi
if [ ! -d "$RUNTIME/tests" ]; then
  echo "runtime/tests is required before the isolated projection" >&2
  exit 93
fi

strict_scan() {
  local log=$1
  if grep -En 'SCRIPT ERROR:|Parse Error:|ERROR:|ObjectDB instances leaked|resources still in use at exit|RID allocations of type|RID of type' "$log"; then
    echo "strict diagnostics in $log" >&2
    return 86
  fi
}

test_count=$(find "$RUNTIME/tests" -type f | wc -l | tr -d ' ')
find "$RUNTIME/tests" -depth -delete
if [ -e "$RUNTIME/tests" ]; then
  echo "runtime/tests projection removal failed" >&2
  exit 94
fi

mkdir -p "$LOGS" "$WEB" "$TEMPLATE_PARENT"
ln -s "$TEMPLATE_SOURCE" "$TEMPLATE_PARENT/$TEMPLATE_VERSION"

"$GODOT" --headless --editor --audio-driver Dummy --path "$RUNTIME" --import \
  >"$LOGS/import.log" 2>&1
strict_scan "$LOGS/import.log"

"$GODOT" --headless --editor --audio-driver Dummy --path "$RUNTIME" \
  --export-release "Web Preview" "$WEB/index.html" >"$LOGS/export.log" 2>&1
strict_scan "$LOGS/export.log"

"$GODOT" --headless --audio-driver Dummy --main-pack "$WEB/index.pck" \
  --script "$ROOT/tools/pck_inventory.gd" >"$LOGS/pck-inventory.log" 2>&1
strict_scan "$LOGS/pck-inventory.log"

inventory_marker=$(grep -E '^ABG_PCK_INVENTORY_OK files=[0-9]+ forbidden=0$' "$LOGS/pck-inventory.log" || true)
if [ -z "$inventory_marker" ]; then
  echo "PCK inventory terminal is missing" >&2
  exit 95
fi

for path in \
  res://fg4/catalog.json \
  res://fg4/rg04_catalog.json \
  res://fg4/run_state.gdc \
  res://fg4/save_v11_service.gdc \
  res://campaign/fg4_adapter.gdc \
  res://campaign/fg4_runtime_controller.gdc \
  res://assets/fg4/asset-manifest.json \
  res://assets/fg4/audio-manifest.json; do
  if ! grep -Fxq "$path" "$LOGS/pck-inventory.log"; then
    echo "required runtime PCK path missing: $path" >&2
    exit 96
  fi
done

web_count=$(find "$WEB" -maxdepth 1 -type f | wc -l | tr -d ' ')
if [ "$web_count" -ne 9 ]; then
  echo "Web export files=$web_count; expected 9" >&2
  exit 97
fi

(
  cd "$WEB"
  find . -maxdepth 1 -type f -print | sed 's#^./##' | sort | while IFS= read -r path; do
    shasum -a 256 "$path"
  done
) >"$EVIDENCE/export.sha256"

pck_paths=$(printf '%s\n' "$inventory_marker" | sed -E 's/.*files=([0-9]+).*/\1/')
printf '%s\n' \
  "source_revision=$SOURCE_REVISION" \
  "test_files_removed=$test_count" \
  "web_files=$web_count" \
  "pck_paths=$pck_paths" \
  "forbidden_paths=0" \
  >"$EVIDENCE/web-summary.txt"

printf 'ABG_RUNTIME_WEB_EXPORT_OK source=%s files=%s pck_paths=%s forbidden=0 test_files_removed=%s\n' \
  "$SOURCE_REVISION" "$web_count" "$pck_paths" "$test_count"