GetCreatedContracts.cs

using System;
using System.Collections.Generic;
using System.Text;
using System.Threading.Tasks;
using System.Xml;
using Waher.Content;
using Waher.Networking.HTTP;
using Waher.Persistence;
using Waher.Persistence.Filters;
using Waher.Script;
using Waher.Script.Abstraction.Elements;
using Waher.Service.IoTBroker.DataStorage;
using Waher.Service.IoTBroker.Legal.Contracts;
 
namespace Waher.Service.IoTBroker.WebServices.Agent.Legal
{
    public class GetCreatedContracts : AgentPostResource
    {
        public GetCreatedContracts()
            : base("Legal/GetCreatedContracts",
                new KeyValuePair<Type, Expression>(typeof(Dictionary<string, object>), new Expression(jsonPattern)),
                new KeyValuePair<Type, Expression>(typeof(XmlDocument), new Expression(xmlPattern)))
        {
        }
 
        private static readonly string jsonPattern = Resources.LoadResourceAsText(typeof(GetCreatedContracts).Namespace + ".JSON.GetCreatedContracts.req");
        private static readonly string xmlPattern = Resources.LoadResourceAsText(typeof(GetCreatedContracts).Namespace + ".XML.GetCreatedContracts.req");
 
        public override async Task POST(HttpRequest Request, HttpResponse Response, Dictionary<string, IElement> Parameters)
        {
            AccountUser User = AssertUserAuthenticated(Request);
 
            int Offset = 0;
            int MaxCount = int.MaxValue;
 
            if (Parameters.TryGetValue("POffset", out IElement E) && !(E is null) &&
                E.AssociatedObjectValue is double d)
            {
                Offset = (int)d;
            }
 
            if (Parameters.TryGetValue("PMaxCount", out E) && !(E is null) &&
                E.AssociatedObjectValue is double d2)
            {
                MaxCount = (int)d2;
            }
 
            List<XmlDocument> Result = new List<XmlDocument>();
            IEnumerable<Contract> Contracts = await Database.Find<Contract>(Offset, MaxCount,
                new FilterFieldEqualTo("Account", User.UserName), "-Created");
            StringBuilder Xml = new StringBuilder();
 
            foreach (Contract Contract in Contracts)
            {
                Xml.Clear();
                Contract.Serialize(Xml, true, true, true, true, true, true, true, null, XmppServerModule.Legal);
 
                XmlDocument Doc = new XmlDocument()
                {
                    PreserveWhitespace = true
                };
                Doc.LoadXml(Xml.ToString());
 
                Result.Add(Doc);
            }
 
            await Response.Return(new NamedDictionary<string, object>("ContractsResponse", AgentNamespace)
            {
                { "Contracts", Result.ToArray() }
            });
        }
    }
}