invoice pdf generation api

src/Api/Api.csproj

@@ -13,6 +13,9 @@
   </ItemGroup>
 
   <ItemGroup>
+    <PackageReference Include="jsreport.AspNetCore" Version="1.0.0" />
+    <PackageReference Include="jsreport.Binary" Version="1.8.2" />
+    <PackageReference Include="jsreport.Local" Version="1.0.3" />
     <PackageReference Include="System.Net.Http" Version="4.3.3" />
     <PackageReference Include="Microsoft.AspNetCore" Version="2.0.0" />
     <PackageReference Include="Microsoft.AspNetCore.Mvc" Version="2.0.0" />

src/Api/Controllers/OrganizationsController.cs

@@ -12,6 +12,10 @@ using Microsoft.AspNetCore.Identity;
 using Bit.Core.Models.Table;
 using Bit.Api.Utilities;
 using Bit.Core.Models.Business;
+using jsreport.AspNetCore;
+using jsreport.Types;
+using Bit.Api.Models;
+using Stripe;
 
 namespace Bit.Api.Controllers
 {
@@ -94,6 +98,41 @@ namespace Bit.Api.Controllers
             }
         }
 
+        [HttpGet("{id}/billing-invoice/{invoiceId}")]
+        [SelfHosted(NotSelfHostedOnly = true)]
+        [MiddlewareFilter(typeof(JsReportPipeline))]
+        public async Task<IActionResult> GetBillingInvoice(string id, string invoiceId)
+        {
+            var orgIdGuid = new Guid(id);
+            if(!_currentContext.OrganizationOwner(orgIdGuid))
+            {
+                throw new NotFoundException();
+            }
+
+            var organization = await _organizationRepository.GetByIdAsync(orgIdGuid);
+            if(organization == null)
+            {
+                throw new NotFoundException();
+            }
+
+            try
+            {
+                var invoice = await new StripeInvoiceService().GetAsync(invoiceId);
+                if(invoice == null || invoice.CustomerId != organization.GatewayCustomerId)
+                {
+                    throw new NotFoundException();
+                }
+
+                var model = new InvoiceModel(organization, invoice);
+                HttpContext.JsReportFeature().Recipe(Recipe.PhantomPdf);
+                return View("Invoice", model);
+            }
+            catch(StripeException)
+            {
+                throw new NotFoundException();
+            }
+        }
+
         [HttpGet("{id}/license")]
         [SelfHosted(NotSelfHostedOnly = true)]
         public async Task<OrganizationLicense> GetLicense(string id, [FromQuery]Guid installationId)

src/Api/Models/InvoiceModel.cs

@@ -0,0 +1,67 @@
+using System.Collections.Generic;
+using System.Linq;
+using Bit.Core.Models.Table;
+using Stripe;
+
+namespace Bit.Api.Models
+{
+    public class InvoiceModel
+    {
+        public InvoiceModel(Organization organization, StripeInvoice invoice)
+        {
+            // TODO: address
+            OurAddress1 = "567 Green St";
+            OurAddress2 = "Jacksonville, FL 32256";
+            OurAddress3 = "United States";
+
+            CustomerName = organization.BusinessName ?? "--";
+            // TODO: address and vat
+            CustomerAddress1 = "123 Any St";
+            CustomerAddress2 = "New York, NY 10001";
+            CustomerAddress3 = "United States";
+            CustomerVatNumber = "PT 123456789";
+
+            InvoiceDate = invoice.Date?.ToLongDateString();
+            InvoiceDueDate = invoice.DueDate?.ToLongDateString();
+            InvoiceNumber = invoice.Id;
+            Items = invoice.StripeInvoiceLineItems.Select(i => new Item(i));
+
+            SubtotalAmount = (invoice.Total / 100).ToString("C");
+            VatTotalAmount = 0.ToString("C");
+            TotalAmount = SubtotalAmount;
+            Paid = invoice.Paid;
+        }
+
+        public string OurAddress1 { get; set; }
+        public string OurAddress2 { get; set; }
+        public string OurAddress3 { get; set; }
+        public string InvoiceDate { get; set; }
+        public string InvoiceDueDate { get; set; }
+        public string InvoiceNumber { get; set; }
+        public string CustomerName { get; set; }
+        public string CustomerVatNumber { get; set; }
+        public string CustomerAddress1 { get; set; }
+        public string CustomerAddress2 { get; set; }
+        public string CustomerAddress3 { get; set; }
+        public IEnumerable<Item> Items { get; set; }
+        public string SubtotalAmount { get; set; }
+        public string VatTotalAmount { get; set; }
+        public string TotalAmount { get; set; }
+        public bool Paid { get; set; }
+        public bool UsesVat => !string.IsNullOrWhiteSpace(CustomerVatNumber);
+
+        public class Item
+        {
+            public Item(StripeInvoiceLineItem item)
+            {
+                Quantity = item.Quantity?.ToString() ?? "-";
+                Amount = (item.Amount / 100).ToString("F");
+                Description = item.Description ?? "--";
+            }
+
+            public string Description { get; set; }
+            public string Quantity { get; set; }
+            public string Amount { get; set; }
+        }
+    }
+}

src/Api/Startup.cs

@@ -20,6 +20,7 @@ using Stripe;
 using Bit.Core.Utilities;
 using IdentityModel;
 using IdentityServer4.AccessTokenValidation;
+using jsreport.AspNetCore;
 
 namespace Bit.Api
 {
@@ -140,6 +141,16 @@ namespace Bit.Api
                     jsonFormatter.SupportedMediaTypes.Add(textPlainMediaType);
                 }
             }).AddJsonOptions(options => options.SerializerSettings.ContractResolver = new DefaultContractResolver());
+
+            // PDF generation
+            if(!globalSettings.SelfHosted)
+            {
+                services
+                    .AddJsReport(new jsreport.Local.LocalReporting()
+                    .UseBinary(jsreport.Binary.JsReportBinary.GetBinary())
+                    .AsUtility()
+                    .Create());
+            }
         }
 
         public void Configure(

src/Api/Views/Organizations/Invoice.cshtml

@@ -0,0 +1,145 @@
+@model Bit.Api.Models.InvoiceModel
+<html>
+<head>
+    <style>
+        body {
+            font-family: Arial, Helvetica, sans-serif;
+            font-size: 18px;
+        }
+
+        h1, h2, h3, h4 {
+            font-family: Arial, Helvetica, sans-serif;
+        }
+
+        table {
+            width: 100%;
+        }
+
+            table th, table td {
+                text-align: left;
+                padding: 5px 0;
+                vertical-align: top;
+            }
+
+            table.items {
+                border-collapse: collapse;
+                border: 1px solid black;
+            }
+
+                table.items th, table.items td {
+                    padding: 5px;
+                    border: 1px solid darkgray;
+                }
+
+        .right {
+            text-align: right;
+        }
+
+        .paid {
+            margin-top: 50px;
+            font-size: 60px;
+            text-align: center;
+            color: darkgreen;
+        }
+
+        .number {
+            float: right;
+            text-align: right;
+            font-family: Courier New, Courier, monospace;
+        }
+    </style>
+</head>
+<body>
+    <div class="number">@Model.InvoiceNumber</div>
+    <h1>INVOICE</h1>
+    <p>
+        @if(!string.IsNullOrWhiteSpace(Model.InvoiceDate))
+        {
+            <b>Date:</b> @Model.InvoiceDate<br />
+        }
+        @if(!string.IsNullOrWhiteSpace(Model.InvoiceDueDate))
+        {
+            <b>Due Date:</b> @Model.InvoiceDueDate
+        }
+    </p>
+    <table>
+        <tbody>
+            <tr>
+                <td width="50%">
+                    <h2>From</h2>
+                    <p>
+                        <b>8bit Solutions LLC</b><br />
+                        @Model.OurAddress1<br />
+                        @Model.OurAddress2<br />
+                        @Model.OurAddress3
+                    </p>
+                </td>
+                <td width="50%">
+                    <h2>To</h2>
+                    <p>
+                        <b>@Model.CustomerName</b><br />
+                        @if(Model.UsesVat)
+                        {
+                            @:VAT @Model.CustomerVatNumber<br />
+                        }
+                        @if(!string.IsNullOrWhiteSpace(Model.CustomerAddress1))
+                        {
+                            @Model.CustomerAddress1<br />
+                        }
+                        @if(!string.IsNullOrWhiteSpace(Model.CustomerAddress2))
+                        {
+                            @Model.CustomerAddress2<br />
+                        }
+                        @if(!string.IsNullOrWhiteSpace(Model.CustomerAddress3))
+                        {
+                            @Model.CustomerAddress3
+                        }
+                    </p>
+                </td>
+            </tr>
+        </tbody>
+    </table>
+    <h2>Items</h2>
+    <table class="items">
+        <thead>
+            <tr>
+                <th>Description</th>
+                <th class="right" style="width: 100px;">Qty</th>
+                @if(Model.UsesVat)
+                {
+                    <th class="right" style="width: 100px;">VAT %</th>
+                    <th class="right" style="width: 100px;">VAT</th>
+                }
+                <th class="right" style="width: 100px;">Total</th>
+            </tr>
+        </thead>
+        <tbody>
+            @foreach(var item in Model.Items)
+            {
+                <tr>
+                    <td>@item.Description</td>
+                    <td class="right">@item.Quantity</td>
+                    @if(Model.UsesVat)
+                    {
+                        <td class="right">0</td>
+                        <td class="right">0.00</td>
+                    }
+                    <td class="right">@item.Amount</td>
+                </tr>
+            }
+        </tbody>
+    </table>
+    <h2>Totals</h2>
+    <b>Subtotal:</b> @Model.SubtotalAmount<br />
+    @if(Model.UsesVat)
+    {
+        <b>Total VAT:</b> @Model.VatTotalAmount<br />
+    }
+    <br />
+    <b>Total:</b> USD @Model.TotalAmount
+    @if(Model.Paid)
+    {
+        <div class="paid">PAID</div>
+    }
+</body>
+</html>