#!/bin/bash
# Build script for PISCAL Docker image with automatic versioning

set -e

# Load password from .piscal-build.env if it exists (gitignored)
if [ -f .piscal-build.env ]; then
  set -a
  source .piscal-build.env
  set +a
fi

# Generate version tag: YYYYMMDD-gitsha
DATE_TAG=$(date +%Y%m%d)
GIT_SHA=$(git rev-parse --short HEAD)
VERSION="${DATE_TAG}-${GIT_SHA}"

echo "Building PISCAL Docker image..."
echo "Version: ${VERSION}"
echo ""

# Build args: use PISCAL_SSH_PASSWORD if set (from env or .piscal-build.env)
BUILD_ARGS=(-t "piscal:${VERSION}" -t piscal:latest -t piscal:dev)
if [ -n "${PISCAL_SSH_PASSWORD:-}" ]; then
  BUILD_ARGS+=(--build-arg "SSH_PASSWORD=${PISCAL_SSH_PASSWORD}")
fi
[ -n "${PISCAL_BUILD_NO_CACHE:-}" ] && BUILD_ARGS+=(--no-cache)

docker build "${BUILD_ARGS[@]}" .

echo ""
echo "Successfully built:"
echo "  - piscal:${VERSION}"
echo "  - piscal:latest"
echo "  - piscal:dev"
echo ""
if [ -n "${PISCAL_SSH_PASSWORD:-}" ]; then
  echo "Credentials (from PISCAL_SSH_PASSWORD / .piscal-build.env):"
  echo "  Username: piscaladmin"
  echo "  Password: (custom)"
else
  echo "Default credentials (v1 layout):"
  echo "  Username: piscaladmin"
  echo "  Password: piscaladmin"
fi
echo "  LeafWeb:  /home/piscaladmin/LeafWeb (scripts + project dirs)"
echo "  Storage:  /home/piscaladmin/LeafWeb_storage"
echo "  Executable: /home/piscaladmin/piscal_executable/piscal"
echo ""
echo "To run: docker run -d -p 2222:22 --name piscal-server piscal:latest"
echo "To SSH: ssh -p 2222 piscaladmin@localhost"