using xCommons.Extensions;
using xDataService.Constants;
using xDataService.Models;

namespace xDataService.Extensions
{
    public static class XDatabaseDescriptorExtensions
    {
        /// <summary>
        /// Validate a Database Descriptor ...
        /// </summary>
        /// <param name="source"></param>
        /// <returns></returns>
        public static bool IsValid(this XDatabaseDescriptor source)
        {
            //
            var result =
                !source.IsNull() &&
                !source.Name.IsNullOrEmpty();

            //
            return result;
        }

        /// <summary>
        /// Chack a Descriptor Has Provider or not ...
        /// </summary>
        /// <param name="source"></param>
        /// <returns></returns>
        public static bool HasProvider(this XDatabaseDescriptor source)
        {
            //
            var result =
                source.IsValid() &&
                source.Provider != XDbProviders.None;

            //
            return result;
        }

        /// <summary>
        /// Check a Descriptor Has EF Core Context or not ...
        /// </summary>
        /// <param name="source"></param>
        /// <returns></returns>
        public static bool HasContext(this XDatabaseDescriptor source)
        {
            //
            var result =
                source.IsValid() &&
                source.HasProvider() &&
                source.Provider != XDbProviders.MongoDB &&
                !source.Context.IsNull();

            //
            return result;
        }

        /// <summary>
        /// Check a Descriptor Has Repositories or not ...
        /// </summary>
        /// <param name="source"></param>
        /// <returns></returns>
        public static bool HasRepositories(this XDatabaseDescriptor source)
        {
            //
            var result =
                source.IsValid() &&
                source.HasProvider() &&
                !source.Repositories.IsNull() &&
                source.Repositories.HasChild();

            //
            return result;
        }

        /// <summary>
        /// Check a Descriptor Has MongoDB Convention Packs ...
        /// </summary>
        /// <param name="source"></param>
        /// <returns></returns>
        public static bool HasConventionPacks(this XDatabaseDescriptor source)
        {
            //
            var result =
                source.IsValid() &&
                source.HasProvider() &&
                source.Provider == XDbProviders.MongoDB &&
                !source.ConventionPacks.IsNull();

            //
            return result;
        }
    }
}