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

SCRIPT_VERSION="0.0.3"

# =====================================================
# FACTUGES Document Signing Service Build Script
# -----------------------------------------------------
# Build + Subida a producción de la imagen Docker
# =====================================================
# Uso:
#   ./build_docker.sh <company> [--load]
#
# =====================================================

# --- Configuración base ---
COMPANY=""
LOAD=false

# --- Validar que el primer argumento existe y no es un flag ---
if [[ $# -eq 0 || "$1" == --* ]]; then
  echo "❌ ERROR: Falta el parámetro <company>"
  echo "Uso:   ./build_docker.sh <company> [--load]"
  echo "Ejemplos:"
  echo "  ./build_docker.sh acme --load"
  exit 1
fi

COMPANY="$1"

SSH_USER="rodax"
SSH_HOST="vps-2.rodax-software.com"
SSH_PORT="49152"

# Override por compañía específica
if [[ "$COMPANY" == "rodax" ]]; then
  SSH_USER="rodax"
  SSH_HOST="factuges.rodax-software.local"
  SSH_PORT="22"
fi

# --- Parseo de flags ---
shift  # quitamos el <company>, ahora solo quedan flags

for arg in "$@"; do
  case "$arg" in
    --load) LOAD=true ;;
    *) echo "⚠️  Argumento desconocido: $arg" ;;
  esac
done

# --- Paths base ---
SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
PROJECT_DIR="$(realpath "${SCRIPT_DIR}/..")"
OUT_DIR="${PROJECT_DIR}/build/"

if [[ -z "$COMPANY" ]]; then
  echo "❌ Error: debes indicar la compañía. Ejemplo: ./build_docker.sh acme [--load]"
  exit 1
fi

if [[ $COMPANY =~ --.* ]]; then
  echo "❌ Error: debes indicar la compañía. Ejemplo: ./build_docker.sh acme [--load]"
  exit 1
fi

# --- Detectar nombre y versión de la API ---
IMAGE_NAME=$(node -p "require('${PROJECT_DIR}/setup.cfg').name" 2>/dev/null || echo "factuges-document-signing-service")
IMAGE_VERSION=$(node -p "require('${PROJECT_DIR}/setup.cfg').version" 2>/dev/null || echo "0.1.2")

PORT="8000"  # valor por defecto

# --- 3. Etiquetas e información ---
DATE=$(date +'%Y%m%d-%H%M%S')
ISO_DATE=$(date -u +"%Y-%m-%dT%H:%M:%SZ")
USER_NAME=$(whoami)
GIT_HASH=$(git -C "$PROJECT_DIR" rev-parse --short HEAD 2>/dev/null || echo "unknown")
GIT_BRANCH=$(git -C "$PROJECT_DIR" rev-parse --abbrev-ref HEAD 2>/dev/null || echo "unknown")

IMAGE_TAG_V="${IMAGE_NAME}:v${IMAGE_VERSION}"
IMAGE_TAG_LATEST="${IMAGE_NAME}:latest"

mkdir -p "$OUT_DIR"
rm -rf "${OUT_DIR:?}/"*

echo ""
echo "-------------------------------------------------------"
echo " FACTUGES Document Signing Service Build Script v${SCRIPT_VERSION}"
echo "    Compañía:    ${COMPANY}"
echo "    Proyecto:    ${IMAGE_NAME}"
echo "    Versión:     ${IMAGE_VERSION}"
echo "    Puerto:      ${PORT}"
echo "    Etiquetas:   ${IMAGE_TAG_V}, ${IMAGE_TAG_LATEST}"
echo "    Dir. out:    ${OUT_DIR}"
echo "    Cargar:      ${LOAD}"
echo "-------------------------------------------------------"

cd "${PROJECT_DIR}"
echo "🐳 Construyendo imagen Docker..."

docker build \
-t "${IMAGE_TAG_V}" -t "${IMAGE_TAG_LATEST}" \
--build-arg PORT="${PORT}" \
-f "${PROJECT_DIR}/Dockerfile" "${PROJECT_DIR}" 

echo "✅ Imagen Docker construida correctamente"


TAR_FILE_V="${OUT_DIR}/${IMAGE_NAME}-v${IMAGE_VERSION}-${DATE}.tar"
echo "🐳 Guardando imagen Docker ${TAR_FILE_V} ..."
docker save "${IMAGE_TAG_V}" "${IMAGE_TAG_LATEST}" -o "${TAR_FILE_V}"

echo "📦 Imagen guardada:"
echo "  ${TAR_FILE_V}"

if [[ "$LOAD" == true ]]; then
    echo "📥 Cargando imagen en producción ${SSH_HOST}..."
    scp -r -P "${SSH_PORT}" "${OUT_DIR}"  "${SSH_USER}@${SSH_HOST}:/opt/factuges-document-signing-service/"

    RESULT=$(ssh -p "${SSH_PORT}" "${SSH_USER}@${SSH_HOST}" \
    "docker load -i /opt/factuges-document-signing-service/build/$(basename "${TAR_FILE_V}") && \
    docker tag ${IMAGE_TAG_V} ${IMAGE_TAG_LATEST} " 2>&1)
    
    echo "${RESULT}"
    echo "✅ Imagen cargada en producción"
fi


# =====================================================
# 3️⃣  Resumen
# =====================================================
echo "-------------------------------------------------------"
echo "🎯 Resultado final para '${COMPANY}'"
echo "   🐳 v${IMAGE_VERSION} → ${OUT_DIR}"
echo "🧩 Script version: ${SCRIPT_VERSION} - FIN"
echo "-------------------------------------------------------"
echo ""
echo ""
echo ""