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

APP_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
cd "$APP_DIR"

PHP_BIN="${PHP_BIN:-php}"
BACKUP_ROOT="${BACKUP_ROOT:-$APP_DIR/storage/app/backups-manual}"
TIMESTAMP="$(date '+%Y-%m-%d-%H%M%S')"
RETENTION_DAYS="${RETENTION_DAYS:-14}"

log() {
  printf '\n[%s] %s\n' "$(date '+%Y-%m-%d %H:%M:%S')" "$1"
}

abort() {
  printf '\n[ERROR] %s\n' "$1" >&2
  exit 1
}

[[ -f .env ]] || abort "File .env tidak ditemukan."
[[ -f artisan ]] || abort "File artisan tidak ditemukan. Jalankan dari root project Laravel."

mkdir -p "$BACKUP_ROOT/database"
mkdir -p "$BACKUP_ROOT/storage"
mkdir -p "$BACKUP_ROOT/env"

DB_CONNECTION=$(grep '^DB_CONNECTION=' .env | cut -d '=' -f2- | tr -d '"')
DB_HOST=$(grep '^DB_HOST=' .env | cut -d '=' -f2- | tr -d '"')
DB_PORT=$(grep '^DB_PORT=' .env | cut -d '=' -f2- | tr -d '"')
DB_DATABASE=$(grep '^DB_DATABASE=' .env | cut -d '=' -f2- | tr -d '"')
DB_USERNAME=$(grep '^DB_USERNAME=' .env | cut -d '=' -f2- | tr -d '"')
DB_PASSWORD=$(grep '^DB_PASSWORD=' .env | cut -d '=' -f2- | tr -d '"')

[[ -n "$DB_CONNECTION" ]] || abort "DB_CONNECTION tidak ditemukan di .env"
[[ "$DB_CONNECTION" == "mysql" ]] || abort "backup.sh saat ini hanya mendukung DB_CONNECTION=mysql"
[[ -n "$DB_DATABASE" ]] || abort "DB_DATABASE tidak ditemukan di .env"
[[ -n "$DB_USERNAME" ]] || abort "DB_USERNAME tidak ditemukan di .env"

DB_HOST="${DB_HOST:-127.0.0.1}"
DB_PORT="${DB_PORT:-3306}"

DB_FILE="$BACKUP_ROOT/database/${DB_DATABASE}-${TIMESTAMP}.sql"
STORAGE_FILE="$BACKUP_ROOT/storage/storage-public-${TIMESTAMP}.tar.gz"
ENV_FILE="$BACKUP_ROOT/env/env-${TIMESTAMP}.backup"

log "Backup database: $DB_DATABASE"
MYSQL_PWD="$DB_PASSWORD" mysqldump \
  --host="$DB_HOST" \
  --port="$DB_PORT" \
  --user="$DB_USERNAME" \
  --single-transaction \
  --quick \
  --skip-lock-tables \
  "$DB_DATABASE" > "$DB_FILE"

log "Backup storage/app/public"
tar -czf "$STORAGE_FILE" storage/app/public

log "Backup file .env"
cp .env "$ENV_FILE"
chmod 600 "$ENV_FILE" || true

log "Hapus backup lama di atas ${RETENTION_DAYS} hari"
find "$BACKUP_ROOT" -type f -mtime +"$RETENTION_DAYS" -delete || true

log "Backup selesai"
printf '\nHasil backup:\n'
printf -- '- Database: %s\n' "$DB_FILE"
printf -- '- Storage : %s\n' "$STORAGE_FILE"
printf -- '- .env    : %s\n' "$ENV_FILE"