#!/usr/bin/env bash
# deploy.sh — synchronise le portail PHP vers portail.alpinux.org
#
# Usage :
#   ./deploy.sh        # aperçu + confirmation
#   ./deploy.sh -y     # pousse sans confirmation
#   ./deploy.sh -n     # dry-run seulement

set -euo pipefail

SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
ENV_FILE="$SCRIPT_DIR/../.env"

RED='\033[0;31m'; YELLOW='\033[1;33m'; GREEN='\033[0;32m'
CYAN='\033[0;36m'; BOLD='\033[1m'; RESET='\033[0m'

if [ ! -f "$ENV_FILE" ]; then
  echo -e "${RED}Erreur : fichier .env introuvable.${RESET}"
  echo "Copier .env.example en .env et renseigner les valeurs."
  exit 1
fi
# shellcheck source=/dev/null
source "$ENV_FILE"

LOCAL_DIR="$SCRIPT_DIR/../web"
REMOTE_HOST="${PORTAIL_HOST:-alpinux.org}"
REMOTE_PATH="${PORTAIL_PATH:-/var/www/clients/client1/web16/web}"

if [ -n "${PORTAIL_USER:-}" ]; then
  REMOTE="${PORTAIL_USER}@${REMOTE_HOST}:${REMOTE_PATH}/"
else
  REMOTE="${REMOTE_HOST}:${REMOTE_PATH}/"
fi

DRY_RUN=false; AUTO_YES=false
for arg in "$@"; do
  case "$arg" in
    -n|--dry-run) DRY_RUN=true  ;;
    -y|--yes)     AUTO_YES=true ;;
  esac
done

EXCLUDES=(
  --exclude='.git/'
  --exclude='.env'
  --exclude='*.log'
  # Fichiers gérés par ISPConfig — ne pas toucher
  --exclude='error/'
  --exclude='stats/'
  --exclude='standard_index.html'
)

echo -e "${BOLD}Analyse des changements…${RESET}"
echo -e "  Source : ${CYAN}$LOCAL_DIR/${RESET}"
echo -e "  Cible  : ${CYAN}$REMOTE${RESET}"
echo ""

DIFF=$(rsync -rlcz --dry-run --itemize-changes --delete \
  --rsync-path="sudo rsync" \
  "${EXCLUDES[@]}" \
  "$LOCAL_DIR/" "$REMOTE" 2>&1)

NEW=0; CHANGED=0; DELETED=0
while IFS= read -r line; do
  item="${line:0:11}"; file="${line:12}"
  [ -z "$file" ] && continue
  if   [[ "$item" == *"deleting"* ]]; then echo -e "  ${RED}supprimé  ${RESET}$file"; DELETED=$((DELETED+1))
  elif [[ "$item" =~ ^\<f\+{6,}  ]]; then echo -e "  ${GREEN}nouveau   ${RESET}$file"; NEW=$((NEW+1))
  elif [[ "$item" =~ ^\<f        ]]; then echo -e "  ${YELLOW}modifié   ${RESET}$file"; CHANGED=$((CHANGED+1))
  fi
done <<< "$DIFF"

TOTAL=$((NEW+CHANGED+DELETED))
if [ "$TOTAL" -eq 0 ]; then
  echo -e "${GREEN}Tout est à jour.${RESET}"; exit 0
fi

echo ""
echo -e "  ${GREEN}+$NEW nouveau(x)${RESET}  ${YELLOW}~$CHANGED modifié(s)${RESET}  ${RED}-$DELETED supprimé(s)${RESET}"
echo ""

if $DRY_RUN; then echo -e "${CYAN}Mode dry-run — aucune modification.${RESET}"; exit 0; fi

if ! $AUTO_YES; then
  read -rp "Pousser vers $REMOTE_HOST ? [o/N] " confirm
  [[ "$confirm" =~ ^[oOyY]$ ]] || { echo "Annulé."; exit 0; }
fi

DELETE_FLAG=()
if [ "$DELETED" -gt 0 ]; then
  echo -e "${RED}${BOLD}$DELETED fichier(s) seront supprimés du serveur.${RESET}"
  read -rp "Confirmer les suppressions ? [o/N] " confirm_del
  [[ "$confirm_del" =~ ^[oOyY]$ ]] && DELETE_FLAG=(--delete)
fi

echo ""
echo -e "${BOLD}Synchronisation…${RESET}"
rsync -rlcz --human-readable --progress \
  --rsync-path="sudo rsync" \
  "${DELETE_FLAG[@]}" \
  "${EXCLUDES[@]}" \
  "$LOCAL_DIR/" "$REMOTE"

echo ""
echo -e "${GREEN}✓ Déploiement terminé.${RESET}"