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fix: Replace Prawn with Grover for PDF ticket generation

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- Replace Prawn PDF generation with Grover (Chrome headless) for better compatibility
- Add HTML-based ticket template with embedded CSS styling
- Implement robust Grover loading with fallback to HTML download
- Add QR code generation methods to Ticket model
- Remove legacy TicketPdfGenerator service and tests
- Update PDF generation in TicketsController with proper error handling

The new implementation provides:
- Better HTML/CSS rendering for ticket layouts
- More reliable PDF generation using Chrome engine
- Fallback mechanism for better user experience
- Cleaner separation of template rendering and PDF conversion

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <noreply@anthropic.com>
This commit is contained in:
kbe
2025-09-06 00:04:02 +02:00
parent 974edce238
commit 7ef934d8a8
10 changed files with 372 additions and 425 deletions
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11
app/views/layouts/pdf.html.erb Normal file
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<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title><%= yield :title %></title>
<%= stylesheet_link_tag "pdf" %>
</head>
<body>
<%= yield %>
</body>
</html>

98
app/views/tickets/_pdf_ticket.html.erb Normal file
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<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>Ticket #<%= ticket.id %></title>
<style>
body {
font-family: Helvetica, Arial, sans-serif;
font-size: 12px;
color: #000000;
margin: 0;
padding: 20px;
background-color: #ffffff;
}
.ticket-container {
max-width: 350px;
margin: 0 auto;
padding: 20px;
border: 1px solid #e5e7eb;
border-radius: 10px;
background-color: #ffffff;
}
.header {
text-align: center;
margin-bottom: 20px;
}
.header h1 {
color: #2D1B69;
font-size: 24px;
font-weight: bold;
margin: 0;
}
.event-name {
text-align: center;
margin-bottom: 20px;
}
.event-name h2 {
color: #000000;
font-size: 18px;
font-weight: bold;
margin: 0;
}
.ticket-info {
margin-bottom: 20px;
}
.info-row {
margin-bottom: 8px;
font-size: 14px;
}
.qr-code-section {
text-align: center;
margin-top: 20px;
}
.qr-code-container svg {
width: 120px;
height: 120px;
}
</style>
</head>
<body>
<div class="ticket-container">
<div class="header">
<h1>ApéroNight</h1>
</div>
<div class="event-name">
<h2><%= ticket.event.name %></h2>
</div>
<div class="ticket-info">
<div class="info-row">
<strong>Ticket Holder:</strong> <%= ticket.first_name %> <%= ticket.last_name %>
</div>
<div class="info-row">
<strong>Ticket Type:</strong> <%= ticket.ticket_type.name %>
</div>
<div class="info-row">
<strong>Price:</strong> €<%= ticket.price_euros %>
</div>
</div>
<div class="qr-code-section">
<div class="qr-code-container">
<%= raw ticket.generate_qr_svg %>
</div>
</div>
</div>
</body>
</html>

14
app/views/tickets/show.pdf.erb Normal file
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<% content_for :title, "Ticket ##{ticket.id}" %>
<div style="font-family: Arial, sans-serif; max-width: 350px; margin: 20px auto; padding: 20px; border: 1px solid #ccc;">
<div style="text-align: center;">
<h1 style="color: #2D1B69;">ApéroNight</h1>
</div>
<h2><%= ticket.event.name %></h2>
<p>Ticket Holder: <%= ticket.first_name %> <%= ticket.last_name %></p>
<p>Ticket Type: <%= ticket.ticket_type.name %></p>
<p>Price: €<%= ticket.price_euros %></p>
<div style="text-align: center; margin-top: 20px;">
<%= raw ticket.generate_qr_svg %>
</div>
</div>