using DS.Module.Core.Extensions;
using Microsoft.Extensions.DependencyInjection;

namespace DS.Module.Core.Modules;

public class LazyServiceProvider: ILazyServiceProvider,ITransientDependency
{
    protected Dictionary<Type, object> CacheServices { get; set; }
    protected IServiceProvider ServiceProvider { get; set; }

    public LazyServiceProvider(IServiceProvider serviceProvider)
    {
        ServiceProvider = serviceProvider;
        CacheServices = new Dictionary<Type, object>();
    }

    public T LazyGetRequiredService<T>()
    {
        return (T)LazyGetRequiredService(typeof(T));
    }

    public object LazyGetRequiredService(Type serviceType)
    {
        return CacheServices.GetOrAdd(serviceType, serviceType => ServiceProvider.GetRequiredService(serviceType));
    }

    public T LazyGetService<T>()
    {
        return (T)LazyGetService(typeof(T));
    }

    public object LazyGetService(Type serviceType)
    {
        return CacheServices.GetOrAdd(serviceType, serviceType => ServiceProvider.GetService(serviceType));
    }

    public T LazyGetService<T>(T defaultValue)
    {
        return (T)LazyGetService(typeof(T), defaultValue);
    }

    public object LazyGetService(Type serviceType, object defaultValue)
    {
        return LazyGetService(serviceType) ?? defaultValue;
    }

    public object LazyGetService(Type serviceType, Func<IServiceProvider, object> factory)
    {
        return CacheServices.GetOrAdd(serviceType, serviceType => factory(ServiceProvider));
    }

    public T LazyGetService<T>(Func<IServiceProvider, object> factory)
    {
        return (T)LazyGetService(typeof(T), factory);
    }
}