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fn_registry/dev/issues/0149-matrix-client-pc-composer.md
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egutierrez bd9f0d8437 feat(matrix): MAS migration helpers + 2 flows + 15 issues + capability group
Helper functions (matrix-mas capability group):
- mas_client_register_bash_infra: register/sync OAuth clients via mas-cli
- mas_syn2mas_migration_bash_infra: dry-run + apply user migration to MAS
- synapse_msc3861_enable_go_infra: edit homeserver.yaml MSC3861 block (with diff)
- wellknown_oidc_patch_go_infra: patch well-known JSON with msc2965.authentication
- synapse_login_flows_check_go_infra: health-check post-migration login flows

Flows + issues for custom Matrix clients (PC + Android):
- 0010 matrix-client-pc: Wails + React+Mantine (issues 0147-0153)
- 0011 matrix-client-android: Kotlin + Compose (issues 0154-0161)
- 0162 enable MAS as auth provider (Synapse delegate) — EXECUTED on VPS
- 0163 custom admin panel propio (sustituye synapse-admin)

Production state (organic-machine.com):
- Synapse migrated SQLite -> Postgres
- MSC3861 active, password_config disabled
- 21 users + 41 access_tokens migrated via syn2mas
- 4 MAS clients registered (element, matrix_pc, matrix_android, admin_panel)
- synapse-admin container removed + Coolify route deleted
- well-known patched with org.matrix.msc2965.authentication

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-24 22:53:33 +02:00

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---
id: "0149"
title: "matrix-client-pc composer: markdown, reply, edit, reactions, media"
status: pending
priority: high
created: 2026-05-24
related_flows: ["0010"]
related_issues: ["0148", "0150"]
dependencies: ["0148"]
tags: [matrix, composer, markdown, media, reactions, threads]
---
## Objetivo
Composer del room: markdown rendering, replies con quote, edits, reactions emoji, threads (Matrix MSC3440), upload de media (imagenes, files, voice msg). Drag&drop archivos. Slash commands placeholder (`/me`, `/shrug`, `/widget` — este ultimo para issue 0152).
## Tareas
1. Backend Go:
- `MatrixService.SendMessage(roomID, body, format)` — text + markdown -> HTML via `goldmark`.
- `MatrixService.SendReply(roomID, parentEventID, body)`.
- `MatrixService.EditMessage(roomID, eventID, newBody)`.
- `MatrixService.SendReaction(roomID, eventID, key)`.
- `MatrixService.UploadMedia(roomID, filePath) -> mxc://`.
- `MatrixService.SendThreadReply(roomID, threadRootID, body)`.
2. Frontend React:
- Componente `Composer` con Mantine `Textarea` + toolbar markdown.
- Hotkeys: Cmd+B/I/K, Cmd+Enter para enviar, Esc cancel edit.
- Drag&drop zone over Composer + paste image desde clipboard.
- `EmojiPicker` (reusar `@emoji-mart/react` o componente propio `@fn_library`).
- `ReactionBar` debajo de EventBubble con aggregates.
- Thread panel lateral (abrir click en evento "X replies").
- Voice messages: graba con `MediaRecorder` (opus codec), upload + send con `org.matrix.msc3245.voice` flag.
3. Tests:
- `e2e/test_send_markdown.sh``**bold**` aparece negrita en otro cliente.
- `e2e/test_edit_message.sh` — edicion aparece in-place en Element Web.
- `e2e/test_reaction.sh` — reaccion emoji propagada bidireccional.
## Funciones del registry a crear
- `markdown_to_matrix_html_go_core``goldmark` con sanitizer Matrix-compatible.
- `Composer_ts_ui` — componente Mantine + dropzone.
- `EmojiPicker_ts_ui` — wrapper picker emoji.
- `ReactionBar_ts_ui` — componente reactions aggregadas.
## Acceptance
- [ ] Mensaje markdown `**negrita** _cursiva_` se ve formateado en Element Web.
- [ ] Reply quote aparece referenciando el msg padre.
- [ ] Edit cambia el msg in-place en ambos clientes.
- [ ] Reaccion emoji con click aparece como counter agregado.
- [ ] Upload imagen (PNG 2MB) se ve thumbnail + click abre full.
- [ ] Voice msg grabado 5s reproduce OK en Element Web.
- [ ] Thread: 5 replies anidados se muestran en panel lateral.
## Notas
- Sanitizer HTML: usar allowlist Matrix (b, i, em, strong, a[href], code, pre, blockquote, ul, ol, li, br, p, h1-h6). NO permitir `<script>`, `<iframe>`, event handlers.
- mxc:// uploads: validar size limit (Synapse default 50MB).
- Voice msg: encode opus 32kbps, max 5min.