using System;
using System.Collections.Generic;
using System.Linq;

using C4IT.FASD.Base;
using C4IT.Logging;

using FasdDesktopUi.Basics;

using static C4IT.Logging.cLogManager;

namespace FasdDesktopUi.Basics.Helper
{
    internal static class TicketExternalLinkHelper
    {
        internal static bool TryOpenTicketRelationExternally(cF4sdApiSearchResultRelation relation)
        {
            try
            {
                if (relation == null || relation.Type != enumF4sdSearchResultClass.Ticket)
                    return false;

                // check how we should open this ticket (intern, extern or both)
                var ticketType = GetTicketType(relation);
                var processing = ShouldOpenExternally(ticketType);

                // check if we have a valid user id in the id list => if not we could open this ticket only extern.
                var hasUser = relation.Identities.Any(e => (e.Class == enumFasdInformationClass.User && e.Id != null && e.Id != Guid.Empty));
                if (!hasUser)
                    processing = enumTicketProcessing.Extern;

                if (processing == enumTicketProcessing.Intern)
                    return false;

                if (relation?.Infos?.TryGetValue("TicketLink", out var ticketLink) == true && !string.IsNullOrWhiteSpace(ticketLink))
                    new cBrowsers().Start("default", ticketLink);

                return processing == enumTicketProcessing.Extern;
            }
            catch (Exception ex)
            {
                LogException(ex);
            }

            return false;
        }

        private static enumTicketType GetTicketType(cF4sdApiSearchResultRelation relation)
        {
            if (relation?.Infos != null && relation.Infos.TryGetValue("TicketType", out var ticketTypeValue))
            {
                if (Enum.TryParse<enumTicketType>(ticketTypeValue, true, out var ticketType))
                    return ticketType;
            }
            return enumTicketType.Ticket;
        }

        private static enumTicketProcessing ShouldOpenExternally(enumTicketType ticketType)
        {
            var ticketConfig = cFasdCockpitConfig.Instance?.Global?.TicketConfiguration;
            if (ticketConfig == null)
                return enumTicketProcessing.Extern;

            if (ticketConfig.TicketProcessing?.TryGetValue(ticketType, out var processing) == true)
                return processing;

            return ticketConfig.DefaultProcessing;
        }
    }
}