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Add background PDF generation for published document versions

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Move PDF generation from synchronous publish flow to a background polling
job. Published versions with file_id IS NULL are picked up by the job,
which generates the PDF, uploads to S3, and links the file. Export PDF
now serves stored files for published versions (with optional signature
page and watermark) and generates on the fly for drafts.

Signed-off-by: Sacha Al Himdani <sacha@getprobo.com>
This commit is contained in:
Sacha Al Himdani
2026-04-17 08:15:57 +02:00
parent ff175e3d0d
commit 25c590ffe6
13 changed files with 795 additions and 70 deletions
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97
pkg/docgen/signature_page_template.html Normal file
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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<style>
@page {
size: {{- if .Landscape}} A4 landscape {{- else}} A4 {{- end}};
margin: 1in;
}
body {
font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif;
font-size: 10pt;
line-height: 1.5;
color: #1a1a1a;
margin: 0;
padding: 0;
}
.signatures-title {
font-size: 13pt;
font-weight: bold;
color: #000;
margin-bottom: 15px;
}
.signatures-table {
width: 100%;
border-collapse: collapse;
font-size: 9pt;
margin-top: 10px;
}
.signatures-table th,
.signatures-table td {
padding: 6px 8px;
text-align: left;
border: 1px solid #ddd;
}
.signatures-table th {
background: #f5f5f5;
font-weight: bold;
color: #333;
}
.signature-signed {
color: #000;
font-weight: bold;
}
.signature-requested {
color: #666;
font-style: italic;
}
</style>
</head>
<body>
<h2 class="signatures-title">Document Signatures</h2>
<table class="signatures-table">
<thead>
<tr>
<th>Signatory</th>
<th>Status</th>
<th>Requested Date</th>
<th>Signed Date</th>
</tr>
</thead>
<tbody>
{{- range .Signatures}}
<tr>
<td>{{.SignedBy}}</td>
<td>
{{- if eq (string .State) "SIGNED"}}
<span class="signature-signed">{{string .State}}</span>
{{- else}}
<span class="signature-requested">{{string .State}}</span>
{{- end}}
</td>
<td>{{.RequestedAt.Format "Jan 2, 2006"}}</td>
<td>
{{- if .SignedAt}}
{{.SignedAt.Format "Jan 2, 2006"}}
{{- else}}
-
{{- end}}
</td>
</tr>
{{- end}}
</tbody>
</table>
</body>
</html>