using Microsoft.EntityFrameworkCore;
using PnvPanel.Application.Auth;
using PnvPanel.Application.Common.Interfaces;
using LiteCqrs;
using PnvPanel.Application.Common.Models;
using PnvPanel.Domain.Audit;

namespace PnvPanel.Application.Admin.Maintenance;

public sealed class DeleteDisabledAppsCommandHandler(
    IAppDbContext dbContext,
    ICurrentUser currentUser
) : ICommandHandler<DeleteDisabledAppsCommand, Result<int>>
{
    public async Task<Result<int>> Handle(
        DeleteDisabledAppsCommand command,
        CancellationToken cancellationToken
    )
    {
        if (currentUser.UserId is not { } adminId)
            return Result.Failure<int>(AuthErrors.Unauthorized);

        var apps = await dbContext
            .ClientApps.Where(a => !a.IsEnabled)
            .ToListAsync(cancellationToken);

        if (apps.Count == 0)
            return Result.Success(0);

        dbContext.ClientApps.RemoveRange(apps);

        dbContext.AuditLogs.Add(
            AuditLog.Create(
                adminId,
                "DisabledAppsCleanedUp",
                "ClientApp",
                "bulk",
                metadata: $"{{\"count\":{apps.Count}}}",
                AuditSource.Web
            )
        );

        return Result.Success(apps.Count);
    }
}