using System;
using C4IT.FASD.Base;
using C4IT.Logging;
using FasdDesktopUi.Basics;
using static C4IT.Logging.cLogManager;

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

                var ticketConfig = cFasdCockpitConfig.Instance?.Global?.TicketConfiguration;
                if (ticketConfig == null)
                    return false;

                var isIncident = IsIncidentRelation(relation, out var activityType);
                var openExternally = isIncident
                    ? ticketConfig.OpenIncidentsExternally
                    : ticketConfig.OpenTicketsExternally;

                if (!openExternally)
                    return false;

                var url = BuildTicketDeepLink(relation.id, activityType);
                if (string.IsNullOrWhiteSpace(url))
                    return false;

                new cBrowsers().Start("default", url);
                return true;
            }
            catch (Exception ex)
            {
                LogException(ex);
            }

            return false;
        }

        internal static bool IsIncidentRelation(cF4sdApiSearchResultRelation relation, out string activityType)
        {
            activityType = null;

            if (relation?.Infos != null && relation.Infos.TryGetValue("ActivityType", out var activityTypeValue))
                activityType = activityTypeValue;

            if (string.IsNullOrWhiteSpace(activityType))
                return false;

            return activityType.IndexOf("Incident", StringComparison.OrdinalIgnoreCase) >= 0;
        }

        internal static string BuildTicketDeepLink(Guid ticketId, string activityType)
        {
            if (ticketId == Guid.Empty)
                return null;

            var server = cCockpitConfiguration.Instance?.m42ServerConfiguration?.Server;
            if (string.IsNullOrWhiteSpace(server))
                return null;

            var baseUrl = server.TrimEnd('/');
            if (!baseUrl.StartsWith("http://", StringComparison.OrdinalIgnoreCase) &&
                !baseUrl.StartsWith("https://", StringComparison.OrdinalIgnoreCase))
            {
                baseUrl = "https://" + baseUrl;
            }
            if (!baseUrl.EndsWith("/wm", StringComparison.OrdinalIgnoreCase))
                baseUrl += "/wm";

            if (string.IsNullOrWhiteSpace(activityType))
                return null;

            var viewOptionsJson = $"{{\"embedded\":false,\"objectId\":\"{ticketId}\",\"type\":\"{activityType}\",\"viewType\":\"preview\",\"archived\":0}}";
            var viewOptionsEncoded = Uri.EscapeDataString(viewOptionsJson);

            return $"{baseUrl}/app-ServiceDesk/?view-options={viewOptionsEncoded}";
        }
    }
}