#!/usr/bin/env bash
set -euo pipefail

SCRIPT_VERSION="1.0.0"

# ================================================
# FACTUGES SYNC - Docker Build Script
# -----------------------------------------------
# Uso:
#   ./build.sh <company> [--load]
# ================================================

# ---------- 1. Validación de parámetros ----------
if [[ $# -eq 0 || "$1" == --* ]]; then
  echo "❌ ERROR: Falta el parámetro <company>"
  echo "Uso: ./build.sh <company> [--load]"
  exit 1
fi

COMPANY="$1"
LOAD=false

if [[ "${2:-}" == "--load" ]]; then
  LOAD=true
fi

# ---------- 2. Directorios ----------
SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
PROJECT_DIR="$(realpath "${SCRIPT_DIR}/..")"
OUT_DIR="${PROJECT_DIR}/out/${COMPANY}"

mkdir -p "$OUT_DIR"
cd "$PROJECT_DIR"

# ---------- 3. Versión del proyecto ----------
IMAGE_NAME="factuges-sync"

IMAGE_VERSION=$(sed -n 's/^version[[:space:]]*=[[:space:]]*\(.*\)$/\1/p' setup.cfg | head -n1)
IMAGE_VERSION="${IMAGE_VERSION:-0.0.0}"

IMAGE_TAG_VERSION="${IMAGE_NAME}:${COMPANY}-${IMAGE_VERSION}"
IMAGE_TAG_LATEST="${IMAGE_NAME}:${COMPANY}-latest"

# ---------- 4. Info del sistema ----------
DATE=$(date +'%Y%m%d-%H%M%S')
ISO_DATE=$(date -u +"%Y-%m-%dT%H:%M:%SZ")
USER_NAME=$(whoami)

echo ""
echo "-------------------------------------------------------"
echo " FACTUGES SYNC Build Script v${SCRIPT_VERSION}"
echo " Compañía:     ${COMPANY}"
echo " Version:      ${IMAGE_VERSION}"
echo " Imagen:       ${IMAGE_TAG_VERSION}"
echo " Latest tag:   ${IMAGE_TAG_LATEST}"
echo " Load:         ${LOAD}"
echo "-------------------------------------------------------"
echo ""

# ---------- 5. Build de la imagen Docker ----------
echo "📦 Construyendo imagen Docker..."
docker build \
  -t "${IMAGE_TAG_VERSION}" \
  -t "${IMAGE_TAG_LATEST}" \
  .

echo "✔ Build OK: ${IMAGE_TAG_VERSION}"
echo ""

# ---------- 6. Generar manifest JSON ----------
MANIFEST_FILE="${OUT_DIR}/manifest-${IMAGE_VERSION}-${DATE}.json"

cat > "$MANIFEST_FILE" <<EOF
{
  "company": "${COMPANY}",
  "image_version": "${IMAGE_VERSION}",
  "image_tag_version": "${IMAGE_TAG_VERSION}",
  "image_tag_latest": "${IMAGE_TAG_LATEST}",
  "build_time": "${ISO_DATE}",
  "user": "${USER_NAME}"
}
EOF

echo "📄 Manifest generado: ${MANIFEST_FILE}"
echo ""

# ---------- 7. LOAD opcional ----------
if [[ "$LOAD" == true ]]; then
  echo "📥 Subiendo imagen al servidor..."
  
  TAR_FILE="${OUT_DIR}/${IMAGE_NAME}-${COMPANY}-latest.tar"
  docker save -o "${TAR_FILE}" "${IMAGE_TAG_LATEST}"

  scp -P 49152 "${TAR_FILE}" \
    rodax@vps-2.rodax-software.com:/opt/factuges/${COMPANY}/

  ssh -p 49152 rodax@vps-2.rodax-software.com \
    "docker load -i /opt/factuges/${COMPANY}/$(basename "$TAR_FILE")"

  echo "✔ Imagen cargada en producción"
fi

# ---------- 8. Resumen ----------
echo ""
echo "-------------------------------------------------------"
echo "🎯 Resultado final para '${COMPANY}'"
echo "✔ Build OK: ${IMAGE_TAG_VERSION}"
if [[ "$LOAD" == true ]]; then
  echo "✔ Load OK"
fi
echo "🧩 Script version: ${SCRIPT_VERSION}"
echo "-------------------------------------------------------"
echo ""