Solve the "editor starts blank" problem by writing a one-time converter
that wraps each compiled .html template into a minimal Unlayer design
JSON (one Custom HTML block containing the entire body content). On
next editor load, Unlayer reads .json and renders the template in the
canvas — instant visual fidelity without manual reconstruction.
Strategy choice: Unlayer's "Import HTML" is a Pro-only feature. Building
a real HTML→Unlayer-blocks parser is several days of work. The minimal-
viable conversion (1 row + 1 Custom HTML block) gets the user 90% there
immediately:
• Canvas shows the template visually (Unlayer renders the HTML)
• Variables ({{firstname}}, {{gift_url}}, etc.) preserved as text
• User can edit the HTML directly via the block's side panel
• User can incrementally REPLACE the HTML block with native Unlayer
blocks (Text, Image, Button) for any section they want decomposed —
on their own schedule, not blocking the campaign send
New file: services/targo-hub/scripts/convert-html-to-unlayer.js
• CLI: node scripts/convert-html-to-unlayer.js <template-name>
• Reads templates/<name>.html, extracts <body> inner content, detects
preheader from a hidden <div style="display:none">, builds Unlayer
design JSON with brand-appropriate body.values (Targo Green link
color #00C853, Plus Jakarta Sans font, F5FAF7 page background).
• Backs up existing .json before overwriting.
Generated outputs (committed):
templates/gift-email-fr.json — 34 KB (30 KB inner HTML + Unlayer chrome)
templates/gift-email-en.json — 33 KB
Live verification: GET /campaigns/templates/gift-email-fr now returns
{ design: {...Unlayer JSON...} } alongside html. The editor's
onReady() callback in TemplateEditorPage detects data.design and calls
editor.loadDesign(design) → canvas populated immediately.
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
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