#!/bin/bash
# =============================================================================
# backend/entrypoint.sh
# =============================================================================
# Docker container entrypoint for TFM aInventory backend.
# Runs first-run initialization then starts the application server.
#
# This script is the ENTRYPOINT defined in backend/Dockerfile.
# DATA_DIR and LOGS_DIR are set via docker-compose.yml environment section.
# =============================================================================

set -euo pipefail

echo "🐳 [Docker] Backend container starting..."
echo "🐳 [Docker] DATA_DIR=${DATA_DIR:-/app/data}"
echo "🐳 [Docker] LOGS_DIR=${LOGS_DIR:-/app/logs}"

# Export defaults if not already set by docker-compose
export DATA_DIR="${DATA_DIR:-/app/data}"
export LOGS_DIR="${LOGS_DIR:-/app/logs}"

# Run shared first-run initialization
echo "🐳 [Docker] Running data initialization..."
bash /app/scripts/init_data.sh

# Fix permissions for mounted volumes (which might be root-owned by the host)
echo "🐳 [Docker] Fixing volume permissions..."
chown -R appuser:appuser "${DATA_DIR}" "${LOGS_DIR}"
chmod -R 770 "${DATA_DIR}" "${LOGS_DIR}"

# Verify logic: Ensure appuser can actually write before we hand off
echo "🐳 [Docker] Verifying directory writability..."
gosu appuser touch "${LOGS_DIR}/.startup_test" && rm "${LOGS_DIR}/.startup_test"
gosu appuser touch "${DATA_DIR}/.startup_test" && rm "${DATA_DIR}/.startup_test"

# Hand off to the application server as non-root user
echo "🐳 [Docker] Starting uvicorn as appuser..."
exec gosu appuser python -m uvicorn backend.main:app --host 0.0.0.0 --port 8000