using System;

namespace Umbraco.Core.Services
{
    /// <summary>
    /// Represents the Umbraco Service context, which provides access to all services.
    /// </summary>
    public class ServiceContext
    {
        private readonly Lazy<IPublicAccessService> _publicAccessService;
        private readonly Lazy<IDomainService> _domainService;
        private readonly Lazy<IAuditService> _auditService;
        private readonly Lazy<ILocalizedTextService> _localizedTextService;
        private readonly Lazy<ITagService> _tagService;
        private readonly Lazy<IContentService> _contentService;
        private readonly Lazy<IUserService> _userService;
        private readonly Lazy<IMemberService> _memberService;
        private readonly Lazy<IMediaService> _mediaService;
        private readonly Lazy<IContentTypeService> _contentTypeService;
        private readonly Lazy<IMediaTypeService> _mediaTypeService;
        private readonly Lazy<IDataTypeService> _dataTypeService;
        private readonly Lazy<IFileService> _fileService;
        private readonly Lazy<ILocalizationService> _localizationService;
        private readonly Lazy<IPackagingService> _packagingService;
        private readonly Lazy<IServerRegistrationService> _serverRegistrationService;
        private readonly Lazy<IEntityService> _entityService;
        private readonly Lazy<IRelationService> _relationService;
        private readonly Lazy<IMacroService> _macroService;
        private readonly Lazy<IMemberTypeService> _memberTypeService;
        private readonly Lazy<IMemberGroupService> _memberGroupService;
        private readonly Lazy<INotificationService> _notificationService;
        private readonly Lazy<IExternalLoginService> _externalLoginService;
        private readonly Lazy<IRedirectUrlService> _redirectUrlService;
        private readonly Lazy<IConsentService> _consentService;
        private readonly Lazy<IContentTypeBaseServiceProvider> _contentTypeBaseServiceProvider;

        /// <summary>
        /// Initializes a new instance of the <see cref="ServiceContext"/> class with lazy services.
        /// </summary>
        public ServiceContext(Lazy<IPublicAccessService> publicAccessService, Lazy<IDomainService> domainService, Lazy<IAuditService> auditService, Lazy<ILocalizedTextService> localizedTextService, Lazy<ITagService> tagService, Lazy<IContentService> contentService, Lazy<IUserService> userService, Lazy<IMemberService> memberService, Lazy<IMediaService> mediaService, Lazy<IContentTypeService> contentTypeService, Lazy<IMediaTypeService> mediaTypeService, Lazy<IDataTypeService> dataTypeService, Lazy<IFileService> fileService, Lazy<ILocalizationService> localizationService, Lazy<IPackagingService> packagingService, Lazy<IServerRegistrationService> serverRegistrationService, Lazy<IEntityService> entityService, Lazy<IRelationService> relationService, Lazy<IMacroService> macroService, Lazy<IMemberTypeService> memberTypeService, Lazy<IMemberGroupService> memberGroupService, Lazy<INotificationService> notificationService, Lazy<IExternalLoginService> externalLoginService, Lazy<IRedirectUrlService> redirectUrlService, Lazy<IConsentService> consentService, Lazy<IContentTypeBaseServiceProvider> contentTypeBaseServiceProvider)
        {
            _publicAccessService = publicAccessService;
            _domainService = domainService;
            _auditService = auditService;
            _localizedTextService = localizedTextService;
            _tagService = tagService;
            _contentService = contentService;
            _userService = userService;
            _memberService = memberService;
            _mediaService = mediaService;
            _contentTypeService = contentTypeService;
            _mediaTypeService = mediaTypeService;
            _dataTypeService = dataTypeService;
            _fileService = fileService;
            _localizationService = localizationService;
            _packagingService = packagingService;
            _serverRegistrationService = serverRegistrationService;
            _entityService = entityService;
            _relationService = relationService;
            _macroService = macroService;
            _memberTypeService = memberTypeService;
            _memberGroupService = memberGroupService;
            _notificationService = notificationService;
            _externalLoginService = externalLoginService;
            _redirectUrlService = redirectUrlService;
            _consentService = consentService;
            _contentTypeBaseServiceProvider = contentTypeBaseServiceProvider;
        }

        /// <summary>
        /// Creates a partial service context with only some services (for tests).
        /// </summary>
        /// <remarks>
        /// <para>Using a true constructor for this confuses DI containers.</para>
        /// </remarks>
        public static ServiceContext CreatePartial(
            IContentService contentService = null,
            IMediaService mediaService = null,
            IContentTypeService contentTypeService = null,
            IMediaTypeService mediaTypeService = null,
            IDataTypeService dataTypeService = null,
            IFileService fileService = null,
            ILocalizationService localizationService = null,
            IPackagingService packagingService = null,
            IEntityService entityService = null,
            IRelationService relationService = null,
            IMemberGroupService memberGroupService = null,
            IMemberTypeService memberTypeService = null,
            IMemberService memberService = null,
            IUserService userService = null,
            ITagService tagService = null,
            INotificationService notificationService = null,
            ILocalizedTextService localizedTextService = null,
            IAuditService auditService = null,
            IDomainService domainService = null,
            IMacroService macroService = null,
            IPublicAccessService publicAccessService = null,
            IExternalLoginService externalLoginService = null,
            IServerRegistrationService serverRegistrationService = null,
            IRedirectUrlService redirectUrlService = null,
            IConsentService consentService = null,
            IContentTypeBaseServiceProvider contentTypeBaseServiceProvider = null)
        {
            Lazy<T> Lazy<T>(T service) => service == null ? null : new Lazy<T>(() => service);

            return new ServiceContext(
                Lazy(publicAccessService),
                Lazy(domainService),
                Lazy(auditService),
                Lazy(localizedTextService),
                Lazy(tagService),
                Lazy(contentService),
                Lazy(userService),
                Lazy(memberService),
                Lazy(mediaService),
                Lazy(contentTypeService),
                Lazy(mediaTypeService),
                Lazy(dataTypeService),
                Lazy(fileService),
                Lazy(localizationService),
                Lazy(packagingService),
                Lazy(serverRegistrationService),
                Lazy(entityService),
                Lazy(relationService),
                Lazy(macroService),
                Lazy(memberTypeService),
                Lazy(memberGroupService),
                Lazy(notificationService),
                Lazy(externalLoginService),
                Lazy(redirectUrlService),
                Lazy(consentService),
                Lazy(contentTypeBaseServiceProvider)
                );
        }

        /// <summary>
        /// Gets the <see cref="IPublicAccessService"/>
        /// </summary>
        public IPublicAccessService PublicAccessService => _publicAccessService.Value;

        /// <summary>
        /// Gets the <see cref="IDomainService"/>
        /// </summary>
        public IDomainService DomainService => _domainService.Value;

        /// <summary>
        /// Gets the <see cref="IAuditService"/>
        /// </summary>
        public IAuditService AuditService => _auditService.Value;

        /// <summary>
        /// Gets the <see cref="ILocalizedTextService"/>
        /// </summary>
        public ILocalizedTextService TextService => _localizedTextService.Value;

        /// <summary>
        /// Gets the <see cref="INotificationService"/>
        /// </summary>
        public INotificationService NotificationService => _notificationService.Value;

        /// <summary>
        /// Gets the <see cref="ServerRegistrationService"/>
        /// </summary>
        public IServerRegistrationService ServerRegistrationService => _serverRegistrationService.Value;

        /// <summary>
        /// Gets the <see cref="ITagService"/>
        /// </summary>
        public ITagService TagService => _tagService.Value;

        /// <summary>
        /// Gets the <see cref="IMacroService"/>
        /// </summary>
        public IMacroService MacroService => _macroService.Value;

        /// <summary>
        /// Gets the <see cref="IEntityService"/>
        /// </summary>
        public IEntityService EntityService => _entityService.Value;

        /// <summary>
        /// Gets the <see cref="IRelationService"/>
        /// </summary>
        public IRelationService RelationService => _relationService.Value;

        /// <summary>
        /// Gets the <see cref="IContentService"/>
        /// </summary>
        public IContentService ContentService => _contentService.Value;

        /// <summary>
        /// Gets the <see cref="IContentTypeService"/>
        /// </summary>
        public IContentTypeService ContentTypeService => _contentTypeService.Value;

        /// <summary>
        /// Gets the <see cref="IMediaTypeService"/>
        /// </summary>
        public IMediaTypeService MediaTypeService => _mediaTypeService.Value;

        /// <summary>
        /// Gets the <see cref="IDataTypeService"/>
        /// </summary>
        public IDataTypeService DataTypeService => _dataTypeService.Value;

        /// <summary>
        /// Gets the <see cref="IFileService"/>
        /// </summary>
        public IFileService FileService => _fileService.Value;

        /// <summary>
        /// Gets the <see cref="ILocalizationService"/>
        /// </summary>
        public ILocalizationService LocalizationService => _localizationService.Value;

        /// <summary>
        /// Gets the <see cref="IMediaService"/>
        /// </summary>
        public IMediaService MediaService => _mediaService.Value;

        /// <summary>
        /// Gets the <see cref="PackagingService"/>
        /// </summary>
        public IPackagingService PackagingService => _packagingService.Value;

        /// <summary>
        /// Gets the <see cref="UserService"/>
        /// </summary>
        public IUserService UserService => _userService.Value;

        /// <summary>
        /// Gets the <see cref="MemberService"/>
        /// </summary>
        public IMemberService MemberService => _memberService.Value;

        /// <summary>
        /// Gets the MemberTypeService
        /// </summary>
        public IMemberTypeService MemberTypeService => _memberTypeService.Value;

        /// <summary>
        /// Gets the MemberGroupService
        /// </summary>
        public IMemberGroupService MemberGroupService => _memberGroupService.Value;

        /// <summary>
        /// Gets the ExternalLoginService.
        /// </summary>
        public IExternalLoginService ExternalLoginService => _externalLoginService.Value;

        /// <summary>
        /// Gets the RedirectUrlService.
        /// </summary>
        public IRedirectUrlService RedirectUrlService => _redirectUrlService.Value;

        /// <summary>
        /// Gets the ConsentService.
        /// </summary>
        public IConsentService ConsentService => _consentService.Value;

        /// <summary>
        /// Gets the ContentTypeServiceBaseFactory.
        /// </summary>
        public IContentTypeBaseServiceProvider ContentTypeBaseServices => _contentTypeBaseServiceProvider.Value;
    }
}