#!/usr/bin/env bash
# MOD-OSINT Docker entrypoint — startup self-check + Streamlit launch
set -euo pipefail

PORT="${STREAMLIT_PORT:-7860}"
HOST="${STREAMLIT_HOST:-0.0.0.0}"

if ! [[ "$PORT" =~ ^[0-9]+$ ]] || [ "$PORT" -lt 1 ] || [ "$PORT" -gt 65535 ]; then
  echo "[fatal] Invalid STREAMLIT_PORT: ${PORT}" >&2
  exit 1
fi

required_files=(
  "gui/streamlit_app.py"
  "engine/pipeline_orchestrator.py"
  "requirements-hf.txt"
)
for file_path in "${required_files[@]}"; do
  if [ ! -f "$file_path" ]; then
    echo "[fatal] Missing required file: $file_path" >&2
    exit 1
  fi
done

for dir_path in runs logs; do
  mkdir -p "$dir_path"
  if [ ! -w "$dir_path" ]; then
    echo "[fatal] Directory not writable: $dir_path" >&2
    exit 1
  fi
done

python3 - <<'PY'
import importlib
import sys

print(f"[startup] Python: {sys.version.split()[0]}")
for mod in ("streamlit", "pandas", "yaml"):
    importlib.import_module(mod)
print("[startup] Dependency import check: OK")
PY

echo "════════════════════════════════════════════════════════"
echo "  MOD-OSINT  |  Streamlit GUI"
echo "  Binding:    ${HOST}:${PORT}"
echo "  Health URL: http://localhost:${PORT}/_stcore/health"
echo "════════════════════════════════════════════════════════"

if [ "${MODOSINT_STARTUP_CHECK_ONLY:-0}" = "1" ]; then
  echo "[startup] MODOSINT_STARTUP_CHECK_ONLY=1 -> exiting after checks"
  exit 0
fi

exec streamlit run gui/streamlit_app.py \
    --server.address="${HOST}" \
    --server.port="${PORT}" \
    --server.enableCORS=false \
    --server.enableXsrfProtection=false \
    --server.headless=true \
    --browser.gatherUsageStats=false