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fix(ui): use part_text_accum_delta to prevent markdown cutoff during streaming (#26822)

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Brendan Allan 2026-05-11 15:15:03 +08:00 • committed by GitHub
commit 5d6f2a1524
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8 changed files with 37 additions and 2 deletions
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17
packages/app/src/context/global-sync/event-reducer.ts
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@ -211,6 +211,12 @@ export function applyDirectoryEvent(input: {
const result = Binary.search(messages, props.messageID, (m) => m.id)
if (result.found) messages.splice(result.index, 1)
}
const parts = draft.part[props.messageID]
if (parts) {
for (const part of parts) {
delete draft.part_text_accum_delta[part.id]
}
}
delete draft.part[props.messageID]
}),
)
@ -219,6 +225,11 @@ export function applyDirectoryEvent(input: {
case "message.part.updated": {
const part = (event.properties as { part: Part }).part
if (SKIP_PARTS.has(part.type)) break
input.setStore(
produce((draft) => {
delete draft.part_text_accum_delta[part.id]
}),
)
const parts = input.store.part[part.messageID]
if (!parts) {
input.setStore("part", part.messageID, [part])
@ -240,6 +251,11 @@ export function applyDirectoryEvent(input: {
}
case "message.part.removed": {
const props = event.properties as { messageID: string; partID: string }
input.setStore(
produce((draft) => {
delete draft.part_text_accum_delta[props.partID]
}),
)
const parts = input.store.part[props.messageID]
if (!parts) break
const result = Binary.search(parts, props.partID, (p) => p.id)
@ -263,6 +279,7 @@ export function applyDirectoryEvent(input: {
if (!parts) break
const result = Binary.search(parts, props.partID, (p) => p.id)
if (!result.found) break
input.setStore("part_text_accum_delta", props.partID, (existing) => (existing ?? "") + props.delta)
input.setStore(
"part",
props.messageID,