// ***********************************************************************
// <copyright file="TenantService.cs">
//     AgileWebs
// </copyright>
// ***********************************************************************

using Core.Blueprint.Mongo;
using Core.Blueprint.Redis;
using Core.Blueprint.Redis.Helpers;
using Core.Thalos.BuildingBlocks;
using Core.Thalos.Domain.Contexts.Onboarding.Request;
using Core.Thalos.Provider.Contracts;
using Mapster;

namespace Core.Thalos.Provider.Providers.Onboarding
{
    /// <summary>
    /// Handles all services and business rules related to <see cref="TenantAdapter"/>.
    /// </summary>
    public class TenantProvider : ITenantProvider
    {
        private readonly CollectionRepository<TenantAdapter> repository;
        private readonly ICacheSettings cacheSettings;
        private readonly IRedisCacheProvider cacheProvider;

        public TenantProvider(
            CollectionRepository<TenantAdapter> repository,
            IRedisCacheProvider cacheProvider,
            ICacheSettings cacheSettings)
        {
            this.repository = repository;
            this.repository.CollectionInitialization();
            this.cacheSettings = cacheSettings;
            this.cacheProvider = cacheProvider;
        }

        /// <summary>
        /// Creates a new Tenant.
        /// </summary>
        /// <param name="newTenant">The Tenant to be created.</param>
        /// <param name="cancellationToken">A token to cancel the asynchronous operation.</param>
        /// <returns>
        /// A <see cref="ValueTask{TenantAdapter}"/> representing the asynchronous execution of the service.
        /// </returns>
        public async ValueTask<TenantAdapter> CreateTenant(TenantRequest newTenant, CancellationToken cancellationToken)
        {
            var tenant = newTenant.Adapt<TenantAdapter>();
            await repository.InsertOneAsync(tenant);
            return tenant;
        }

        /// <summary>
        /// Gets a Tenant by identifier.
        /// </summary>
        /// <param name="_id">The Tenant Mongo identifier.</param>
        /// <param name="cancellationToken">A token to cancel the asynchronous operation.</param>
        /// <returns>
        /// A <see cref="ValueTask{TenantAdapter}"/> representing the asynchronous execution of the service.
        /// </returns>
        public async ValueTask<TenantAdapter> GetTenantById(string _id, CancellationToken cancellationToken)
        {
            var cacheKey = CacheKeyHelper.GenerateCacheKey(this, "GetTenantById", _id);
            var cachedData = await cacheProvider.GetAsync<TenantAdapter>(cacheKey);

            if (cachedData is not null) return cachedData;

            var tenant = await repository.FindByIdAsync(_id);
            await cacheProvider.SetAsync(cacheKey, tenant, TimeSpan.FromMinutes(cacheSettings.DefaultCacheDurationInMinutes));

            return tenant;
        }

        /// <summary>
        /// Gets all Tenants.
        /// </summary>
        /// <param name="cancellationToken">A token to cancel the asynchronous operation.</param>
        /// <returns>
        /// A <see cref="ValueTask{IEnumerable{TenantAdapter}}"/> representing the asynchronous execution of the service.
        /// </returns>
        public async ValueTask<IEnumerable<TenantAdapter>> GetAllTenants(CancellationToken cancellationToken)
        {
            var cacheKey = CacheKeyHelper.GenerateCacheKey(this, "GetTenants");
            var cachedData = await cacheProvider.GetAsync<IEnumerable<TenantAdapter>>(cacheKey) ?? [];

            if (cachedData.Any()) return cachedData;

            var tenants = await repository.AsQueryable();
            await cacheProvider.SetAsync(cacheKey, tenants, TimeSpan.FromMinutes(cacheSettings.DefaultCacheDurationInMinutes));

            return tenants;
        }

        /// <summary>
        /// Changes the status of a Tenant.
        /// </summary>
        /// <param name="_id">The Tenant Mongo identifier.</param>
        /// <param name="newStatus">The new status of the Tenant.</param>
        /// <param name="cancellationToken">A token to cancel the asynchronous operation.</param>
        /// <returns>
        /// A <see cref="ValueTask{TenantAdapter}"/> representing the asynchronous execution of the service.
        /// </returns>
        public async ValueTask<TenantAdapter> ChangeTenantStatus(string _id, Blueprint.Mongo.StatusEnum newStatus, CancellationToken cancellationToken)
        {
            var entity = await repository.FindByIdAsync(_id);
            entity.Status = newStatus;

            await repository.ReplaceOneAsync(entity);
            return entity;
        }

        /// <summary>
        /// Updates a Tenant.
        /// </summary>
        /// <param name="entity">The Tenant to be updated.</param>
        /// <param name="cancellationToken">A token to cancel the asynchronous operation.</param>
        /// <returns>
        /// A <see cref="ValueTask{TenantAdapter}"/> representing the asynchronous execution of the service.
        /// </returns>
        public async ValueTask<TenantAdapter> UpdateTenant(TenantAdapter entity, CancellationToken cancellationToken)
        {
            await repository.ReplaceOneAsync(entity);
            return entity;
        }

        /// <summary>
        /// Deletes a Tenant by identifier.
        /// </summary>
        /// <param name="_id">The Tenant Mongo identifier.</param>
        /// <param name="cancellationToken">A token to cancel the asynchronous operation.</param>
        /// <returns>
        /// A <see cref="ValueTask{TenantAdapter}"/> representing the asynchronous deletion result.
        /// The deleted Tenant entity if found; otherwise, null.
        /// </returns>
        public async ValueTask<TenantAdapter?> DeleteTenant(string _id, CancellationToken cancellationToken)
        {
            var entity = await repository.DeleteOneAsync(doc => doc._Id == _id);
            return entity;
        }
    }
}