New "Traduire (AI)" button in the template editor toolbar. One click
translates the current template's HTML to the opposite language
(detected from the -fr/-en suffix), writing the translated content as
the matching companion template.
Backend (lib/campaigns.js):
- New endpoint: POST /campaigns/templates/:name/translate-to/:targetName
- Reads source .html, calls lib/ai.js aiCall() with Gemini Flash
- System prompt enforces 7 strict preservation rules:
1. Byte-preserve all HTML tags/attributes/styles/Outlook conditionals
2. Don't translate Mustache {{vars}}
3. Preserve URLs/emails/phones/hex colors/CSS/brand names (TARGO,
Gigafibre, Giftbit, Amazon, IGA, Tim Hortons, etc.)
4. Preserve emojis (🎁⚡🤝🪂✅⏭️⏰)
5. Keep the warm informal tone (tu in FR, you in EN)
6. Translate only visible text inside elements (paragraphs, buttons,
alt attributes, link text)
7. Output full HTML doc only, no markdown wrapping
- temperature=0.2 for stable output, maxTokens=32768 to fit ~35 KB HTML
- Sanity validates output isn't truncated (>50% of source size)
- Strips defensive markdown fences if AI ignored rule 7
- Auto-backs up existing target before overwrite
- Regenerates Unlayer design JSON from the translated HTML so the
editor can reload the translated template visually
- Requires { override: true } in body to overwrite existing target
(409 Conflict otherwise — protects against accidental clobber)
API client (apps/ops/src/api/campaigns.js):
- translateTemplate(srcName, targetName, { override })
Frontend (TemplateEditorPage.vue):
- "Traduire (AI)" button (purple, icon=translate) in toolbar — disabled
when current template has no -fr/-en suffix
- aiTranslateTargetName computed: detects source lang from suffix,
flips to opposite (-fr → -en, -en → -fr)
- Confirmation dialog:
• Shows source → target template names
• Info banner explaining what's preserved (HTML, vars, brands, emojis)
• Amber banner + toggle if target exists (must confirm override)
- On success: positive notification with byte counts +
"Open" action button to jump to the translated template
- Refreshes templates list after translation so the new file appears
in the selector dropdown
UX: replaces the previous manual translation workflow (where the user
or I had to maintain two parallel templates). One click now does the
whole round-trip. User reviews + adjusts wording in the EN editor if
the AI translation needs polish.
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
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