#!/bin/sh
# Restore a pg_dump (-Fc format) to a target Postgres database.
# The target DB must already exist and be empty (or you accept overwriting data).
#
# Usage:
#   restore.sh <dump-file> <target-db-url>
#
# Example (inside the backup container):
#   /scripts/restore.sh \
#     /backups/famapp/daily/2024-06-01.dump \
#     postgres://famapp:secret@famapp-db:5432/famapp
#
# Example (from the host via docker exec):
#   docker exec famapp-backup-1 /scripts/restore.sh \
#     /backups/famapp/daily/2024-06-01.dump \
#     postgres://famapp:secret@famapp-db:5432/famapp_restore
set -eu

DUMP_FILE="${1:?Usage: restore.sh <dump-file> <target-db-url>}"
TARGET_URL="${2:?Usage: restore.sh <dump-file> <target-db-url>}"

[ -f "$DUMP_FILE" ] || { echo "[restore] ERROR: $DUMP_FILE not found"; exit 1; }

echo "[restore] $DUMP_FILE → $TARGET_URL"
pg_restore -d "$TARGET_URL" --no-owner --no-acl --exit-on-error "$DUMP_FILE"
echo "[restore] done"