using UtopiaCanteenSystem.Services.Logging;

namespace UtopiaCanteenSystem.Services;

public class OfflineCacheSyncService : IOfflineCacheSyncService
{
    private readonly IEmployeeRfidTagSyncService _employeeRfidTagSync;
    private readonly IMealMenuCacheSyncService _mealMenuCacheSync;

    public OfflineCacheSyncService(
        IEmployeeRfidTagSyncService employeeRfidTagSync,
        IMealMenuCacheSyncService mealMenuCacheSync)
    {
        _employeeRfidTagSync = employeeRfidTagSync;
        _mealMenuCacheSync = mealMenuCacheSync;
    }

    public async Task<OfflineCacheSyncResult> SyncEmployeeAndMenuCacheAsync(CancellationToken cancellationToken = default)
    {
        FileLogger.Info("CacheSync", "Full offline cache sync started (employee RFID + meal/menu).");

        var employeeResult = await _employeeRfidTagSync.SyncAllAsync(cancellationToken).ConfigureAwait(false);
        if (!employeeResult.Success)
        {
            FileLogger.Error("CacheSync", $"Full cache sync failed at employee RFID step. Error={employeeResult.ErrorMessage}");
            return new OfflineCacheSyncResult
            {
                Success = false,
                ErrorMessage = employeeResult.ErrorMessage ?? "Employee RFID cache sync failed.",
                EmployeeSync = employeeResult
            };
        }

        var mealMenuResult = await _mealMenuCacheSync.SyncAllAsync(cancellationToken).ConfigureAwait(false);
        if (!mealMenuResult.Success)
        {
            FileLogger.Error("CacheSync", $"Full cache sync failed at meal/menu step. Error={mealMenuResult.ErrorMessage}");
            return new OfflineCacheSyncResult
            {
                Success = false,
                ErrorMessage = mealMenuResult.ErrorMessage ?? "Meal/menu cache sync failed.",
                EmployeeSync = employeeResult,
                MealMenuSync = mealMenuResult
            };
        }

        FileLogger.Info("CacheSync", "Full offline cache sync completed successfully.");

        return new OfflineCacheSyncResult
        {
            Success = true,
            EmployeeSync = employeeResult,
            MealMenuSync = mealMenuResult
        };
    }
}