making invoice

CebelcaAPI.csproj

@@ -1,7 +1,11 @@
-<Project Sdk="Microsoft.NET.Sdk">
+<Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
     <TargetFramework>netstandard2.0</TargetFramework>
   </PropertyGroup>
 
+  <ItemGroup>
+    <PackageReference Include="Newtonsoft.Json" Version="11.0.2" />
+  </ItemGroup>
+
 </Project>

CebelcaAPISharp.cs

@@ -1,8 +1,123 @@
-using System;
+using Newtonsoft.Json.Linq;
+using System;
+using System.Collections.Generic;
+using System.Globalization;
+using System.Linq;
+using System.Net.Http;
+using System.Text;
+using System.Threading;
+using System.Threading.Tasks;
 
 namespace CebelcaAPI
 {
     public class CebelcaAPISharp
     {
+        private string _key = "";
+        public CebelcaAPISharp(string key)
+        {
+            _key = key;
+        }
+        private async Task<string> APICall(string region, string method, Dictionary<string, string> postvalues)
+        {
+            using (var client = new HttpClient())
+            {
+                var byteArray = Encoding.ASCII.GetBytes($"{_key}:x");
+                client.DefaultRequestHeaders.Authorization = new System.Net.Http.Headers.AuthenticationHeaderValue("Basic", Convert.ToBase64String(byteArray));
+                //  var url = "https://www.cebelca.biz/API?_r=invoice-sent&_m=insert-into";
+                var url = $"https://www.cebelca.biz/API?_r={region}&_m={method}";
+                var content = new FormUrlEncodedContent(postvalues);
+                var response = await client.PostAsync(url, content);
+
+                var responseString = await response.Content.ReadAsStringAsync();
+                return responseString;
+
+            }
+        }
+
+        public async Task<string> AddInvoiceHead(string partnerId, string idDocumentExt, DateTime dateSent, DateTime dateServed, DateTime dateToPay)
+        {
+            Thread.CurrentThread.CurrentCulture = new CultureInfo("sl-SI");
+            var values = new Dictionary<string, string>
+            {
+                { "date_sent",dateSent.ToShortDateString() },
+                { "date_served",dateServed.ToShortDateString() },
+                { "date_to_pay",dateToPay.ToShortDateString() },
+                { "id_partner", partnerId },
+                { "id_document_ext", idDocumentExt }
+            };
+            var ret = await APICall("invoice-sent", "insert-smart-2", values);
+            var json = JArray.Parse(ret);
+            var retname = (json[0][0] as JObject).Properties().First().Name;
+            if (retname != "id")
+                throw new Exception("Error from api: "+ret);
+            var id = json[0][0]["id"].Value<string>();
+            return id;
+
+        }
+
+        public async Task<string> AddInvoiceLine(string invoiceId,string title, string measuringUnit, string qty, decimal price, string vat, string discount)
+        {
+            Thread.CurrentThread.CurrentCulture = new CultureInfo("sl-SI");
+            var values = new Dictionary<string, string>
+            {
+                { "title",title },
+                { "mu",measuringUnit },
+                { "qty",qty },
+                { "id_invoice_sent", invoiceId },
+                { "price", price.ToString() },
+                { "vat", vat }
+            };
+            var ret = await APICall("invoice-sent-b", "insert-into", values);
+            var json = JArray.Parse(ret);
+            var retname = (json[0][0] as JObject).Properties().First().Name;
+            if (retname != "id")
+                throw new Exception("Error from api: " + ret);
+            var id = json[0][0]["id"].Value<string>();
+            return id;
+
+        }
+
+        public async Task<string> AddPayment(string invoiceId, DateTime dateOfPayment, decimal amount, string paymentMethod )
+        {
+            Thread.CurrentThread.CurrentCulture = new CultureInfo("sl-SI");
+            var values = new Dictionary<string, string>
+            {
+                { "date_of",dateOfPayment.ToShortDateString() },
+                { "amount",amount.ToString() },
+               
+                { "id_invoice_sent", invoiceId },
+                { "id_payment_method", paymentMethod},
+                
+            };
+            var ret = await APICall("invoice-sent-p", "insert-into", values);
+            var json = JArray.Parse(ret);
+            var retname = (json[0][0] as JObject).Properties().First().Name;
+            if (retname != "id")
+                throw new Exception("Error from api: " + ret);
+            var id = json[0][0]["id"].Value<string>();
+            return id;
+
+        }
+
+        public async Task<string> IssueInvoiceNoFiscalization(string invoiceId, string docType="0")
+        {
+            Thread.CurrentThread.CurrentCulture = new CultureInfo("sl-SI");
+            var values = new Dictionary<string, string>
+            {
+               
+                { "id", invoiceId },
+                { "doctype", docType},
+
+            };
+            var ret = await APICall("invoice-sent", "finalize-invoice-2015", values);
+            var json = JArray.Parse(ret);
+            var retname = (json[0][0] as JObject).Properties().First().Name;
+            if (retname != "new_title")
+                throw new Exception("Error from api: " + ret);
+            var id = json[0][0]["new_title"].Value<string>();
+            return id;
+
+        }
+
     }
 }