#!/bin/sh
set -eu

# ============================================================================
#  E-COSPLAY - Script de restauration sur un nouveau serveur
# ----------------------------------------------------------------------------
#  N'UTILISE PAS DOCKER. S'appuie sur les binaires installés sur l'hôte
#  (psql, tar, gunzip) et lit DATABASE_URL depuis .env.local après l'avoir
#  restauré depuis l'archive.
#
#  Usage : ./restore.sh <chemin/vers/e-cosplay_backup_YYYYMMDD_HHMMSS.tar.gz>
#
#  Étapes :
#    1. Décompresse l'archive
#    2. Restaure les fichiers d'environnement (.env.local, etc.)
#    3. Restaure la base PostgreSQL via psql + DATABASE_URL
#    4. Restaure les fichiers uploadés (public/storage)
#    5. Vide le cache Symfony et applique les migrations Doctrine
#
#  ATTENTION : la restauration ÉCRASE les données existantes (DB + storage).
# ============================================================================

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

if [ $# -lt 1 ]; then
    echo "${RED}Usage : $0 <archive.tar.gz>${RESET}" >&2
    exit 1
fi

ARCHIVE="$1"
if [ ! -f "$ARCHIVE" ]; then
    echo "${RED}Archive introuvable : $ARCHIVE${RESET}" >&2
    exit 1
fi

PROJECT_DIR="$(cd "$(dirname "$0")" && pwd)"
cd "$PROJECT_DIR"

case "$ARCHIVE" in
    /*) ARCHIVE_ABS="$ARCHIVE" ;;
    *)  ARCHIVE_ABS="$(pwd)/$ARCHIVE" ;;
esac

STORAGE_DIR="${STORAGE_DIR:-public/storage}"

WORK_DIR="$(mktemp -d /tmp/e-cosplay_restore.XXXXXX)"
trap 'rm -rf "$WORK_DIR"' EXIT

echo "${CYAN}#############################${RESET}"
echo "${CYAN}# E-COSPLAY RESTORE START   #${RESET}"
echo "${CYAN}#############################${RESET}"
echo "${CYAN}Archive : ${ARCHIVE_ABS}${RESET}"

# ---------------------------------------------------------------------------
# Vérifications
# ---------------------------------------------------------------------------
for bin in psql tar gunzip; do
    if ! command -v "$bin" >/dev/null 2>&1; then
        echo "${RED}Binaire introuvable : $bin${RESET}" >&2
        exit 1
    fi
done

# ---------------------------------------------------------------------------
# Confirmation interactive (skip avec FORCE=1)
# ---------------------------------------------------------------------------
if [ "${FORCE:-0}" != "1" ]; then
    printf "${ORANGE}La restauration va ÉCRASER la base et les fichiers existants. Continuer ? [y/N] ${RESET}"
    read -r answer
    case "$answer" in
        y|Y|yes|YES) ;;
        *) echo "Annulé."; exit 0 ;;
    esac
fi

# ---------------------------------------------------------------------------
# 1) Décompression
# ---------------------------------------------------------------------------
echo "${CYAN}> Décompression de l'archive...${RESET}"
tar -xzf "$ARCHIVE_ABS" -C "$WORK_DIR"
SRC="$(find "$WORK_DIR" -mindepth 1 -maxdepth 1 -type d | head -n1)"
if [ -z "$SRC" ] || [ ! -f "$SRC/manifest.txt" ]; then
    echo "${RED}Archive invalide : manifest.txt introuvable${RESET}" >&2
    exit 1
fi
echo "${GREEN}  ✓ Manifest :${RESET}"
sed 's/^/    /' "$SRC/manifest.txt"

# ---------------------------------------------------------------------------
# 2) Restauration des fichiers d'environnement
# ---------------------------------------------------------------------------
if [ -d "$SRC/env" ]; then
    echo "${CYAN}> Restauration des fichiers d'environnement...${RESET}"
    for f in "$SRC"/env/*; do
        [ -e "$f" ] || continue
        name="$(basename "$f")"
        if [ -f "$PROJECT_DIR/$name" ]; then
            cp -a "$PROJECT_DIR/$name" "$PROJECT_DIR/$name.bak.$(date +%s)"
        fi
        cp -a "$f" "$PROJECT_DIR/$name"
        echo "${GREEN}  ✓ $name${RESET}"
    done
fi

# ---------------------------------------------------------------------------
# 3) Récupération de DATABASE_URL (après restauration des fichiers env)
# ---------------------------------------------------------------------------
get_database_url() {
    if [ -n "${DATABASE_URL:-}" ]; then
        echo "$DATABASE_URL"
        return 0
    fi
    for f in .env.local .env.prod.local .env.prod .env; do
        if [ -f "$PROJECT_DIR/$f" ]; then
            url="$(grep -E '^DATABASE_URL=' "$PROJECT_DIR/$f" | tail -n1 | sed -E 's/^DATABASE_URL=//; s/^"(.*)"$/\1/; s/^'"'"'(.*)'"'"'$/\1/')"
            if [ -n "$url" ]; then
                echo "$url"
                return 0
            fi
        fi
    done
    return 1
}

DATABASE_URL_RAW="$(get_database_url || true)"
if [ -z "$DATABASE_URL_RAW" ]; then
    echo "${RED}DATABASE_URL introuvable${RESET}" >&2
    exit 1
fi
DATABASE_URL_CLEAN="$(echo "$DATABASE_URL_RAW" | sed -E 's/\?.*$//')"
DATABASE_URL_MASKED="$(echo "$DATABASE_URL_CLEAN" | sed -E 's#(://[^:]+:)[^@]+(@)#\1***\2#')"
echo "${CYAN}> DATABASE_URL : ${DATABASE_URL_MASKED}${RESET}"

# ---------------------------------------------------------------------------
# 4) Restauration PostgreSQL
# ---------------------------------------------------------------------------
if [ -f "$SRC/database.sql.gz" ]; then
    echo "${CYAN}> Restauration de la base PostgreSQL...${RESET}"
    gunzip -c "$SRC/database.sql.gz" \
        | psql "$DATABASE_URL_CLEAN" -v ON_ERROR_STOP=1 >/dev/null
    echo "${GREEN}  ✓ Base restaurée${RESET}"
else
    echo "${ORANGE}  ! database.sql.gz absent, étape ignorée${RESET}"
fi

# ---------------------------------------------------------------------------
# 5) Restauration des fichiers uploadés
# ---------------------------------------------------------------------------
if [ -f "$SRC/storage.tar.gz" ]; then
    echo "${CYAN}> Restauration de ${STORAGE_DIR}...${RESET}"
    if [ -d "$PROJECT_DIR/$STORAGE_DIR" ]; then
        backup_path="$PROJECT_DIR/${STORAGE_DIR}.bak.$(date +%s)"
        mv "$PROJECT_DIR/$STORAGE_DIR" "$backup_path"
        echo "${ORANGE}  ! ancien dossier déplacé vers $backup_path${RESET}"
    fi
    tar -xzf "$SRC/storage.tar.gz" -C "$PROJECT_DIR"
    echo "${GREEN}  ✓ ${STORAGE_DIR} restauré${RESET}"
else
    echo "${ORANGE}  ! storage.tar.gz absent, étape ignorée${RESET}"
fi

# ---------------------------------------------------------------------------
# 6) Cache Symfony + migrations Doctrine
# ---------------------------------------------------------------------------
if [ -x "$PROJECT_DIR/bin/console" ] && command -v php >/dev/null 2>&1; then
    echo "${CYAN}> Vidage du cache Symfony...${RESET}"
    php "$PROJECT_DIR/bin/console" cache:clear --no-warmup || true
    php "$PROJECT_DIR/bin/console" cache:warmup || true

    echo "${CYAN}> Application des migrations Doctrine éventuelles...${RESET}"
    php "$PROJECT_DIR/bin/console" doctrine:migrations:migrate --no-interaction --allow-no-migration || true
fi

echo "${GREEN}#############################${RESET}"
echo "${GREEN}# RESTORE TERMINÉ           #${RESET}"
echo "${GREEN}#############################${RESET}"
echo "${GREEN}Pense à vérifier :${RESET}"
echo "  - les variables d'environnement spécifiques au nouveau serveur (PATH_URL, DEV_URL, ...)"
echo "  - les permissions du dossier $STORAGE_DIR (utilisateur du serveur web)"
echo "  - la conf Caddy / Nginx / Apache et les certificats TLS"