ContractSignedNotificationEvent.cs

using NeuroAccessMaui.Extensions;
using NeuroAccessMaui.Resources.Languages;
using NeuroAccessMaui.Services.Contacts;
using NeuroAccessMaui.Services.UI;
using NeuroAccessMaui.Services.UI.Photos;
using NeuroAccessMaui.UI.Pages.Contracts.MyContracts.ObjectModels;
using NeuroAccessMaui.UI.Pages.Contracts.ViewContract;
using System.Text;
using System.Xml;
using Waher.Networking.XMPP.Contracts;
using Waher.Networking.XMPP.Contracts.EventArguments;
 
namespace NeuroAccessMaui.Services.Notification.Contracts
{
    public class ContractSignedNotificationEvent : ContractNotificationEvent
    {
        private LegalIdentity? identity;
 
        public ContractSignedNotificationEvent()
            : base()
        {
        }
 
        public ContractSignedNotificationEvent(Contract Contract, ContractSignedEventArgs e)
            : base(Contract, e)
        {
            this.LegalId = e.LegalId;
            this.Role = e.Role;
            this.Contract = e.Contract;
        }
 
        public string? LegalId { get; set; }
 
        public string? Role { get; set; }
 
        public Contract? Contract { get; set; }
 
        public override async Task Open()
        {
            this.Contract ??= await this.GetContract();
            ViewContractNavigationArgs Args = new(this.Contract, false);
 
            await ServiceRef.NavigationService.GoToAsync(nameof(ViewContractPage), Args, BackMethod.Pop);
        }
 
        public override async Task<string> GetDescription()
        {
            this.Contract ??= await this.GetContract();
            StringBuilder Result = new();
 
            if (this.Contract is not null)
            {
                Result.Append(await ContractModel.GetCategory(this.Contract));
                Result.Append(": ");
            }
 
            if (this.identity is null)
                Result.Append(ServiceRef.Localizer[nameof(AppResources.ContractSignatureReceived)]);
            else
            {
                string FriendlyName = ContactInfo.GetFriendlyName(this.identity);
                Result.Append(ServiceRef.Localizer[nameof(AppResources.UserSignedAs), FriendlyName, this.Role ?? string.Empty]);
            }
 
            Result.Append('.');
 
            return Result.ToString();
        }
 
        public string? IdentityXml { get; set; }
 
        public LegalIdentity? Identity
        {
            get
            {
                if (this.identity is null && !string.IsNullOrEmpty(this.IdentityXml))
                {
                    XmlDocument Doc = new()
                    {
                        PreserveWhitespace = true
                    };
                    Doc.LoadXml(this.IdentityXml);
 
                    this.identity = LegalIdentity.Parse(Doc.DocumentElement);
                }
 
                return this.identity;
            }
 
            set
            {
                this.identity = value;
 
                if (value is null)
                    this.IdentityXml = null;
                else
                {
                    StringBuilder Xml = new();
                    value.Serialize(Xml, true, true, true, true, true, true, true);
                    this.IdentityXml = Xml.ToString();
                }
            }
        }
 
        public override async Task Prepare()
        {
            if (this.identity is null && !string.IsNullOrEmpty(this.LegalId))
            {
                try
                {
                    this.Identity = await ServiceRef.XmppService.GetLegalIdentity(this.LegalId);
                }
                catch (Exception ex)
                {
                    ServiceRef.LogService.LogException(ex,
                        new KeyValuePair<string, object?>("ContractId", this.ContractId),
                        new KeyValuePair<string, object?>("LegalId", this.LegalId),
                        new KeyValuePair<string, object?>("Role", this.Role),
                        new KeyValuePair<string, object?>(Constants.XmppProperties.Jid, ServiceRef.XmppService.BareJid));
                }
            }
 
            LegalIdentity? Identity = this.Identity;
 
            if (Identity?.Attachments is not null)
            {
                foreach (Attachment Attachment in Identity.Attachments.GetImageAttachments())
                {
                    try
                    {
                        await PhotosLoader.LoadPhoto(Attachment);
                    }
                    catch (Exception ex)
                    {
                        ServiceRef.LogService.LogException(ex);
                    }
                }
            }
        }
 
    }
}