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Update limits after gathered data

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This commit is contained in:
Jack Kingsman
2026-01-12 22:23:59 -08:00
parent 9f1c925157
commit 1e1b1e2bb5
3 changed files with 36 additions and 34 deletions
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frontend/src/components/MessageInput.tsx
+9 -7
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@@ -4,10 +4,12 @@ import { Button } from './ui/button';
import { cn } from '@/lib/utils';
// MeshCore message size limits (empirically determined from LoRa packet constraints)
// Total text budget is ~150 bytes. DMs use full budget; channels include "sender: " prefix.
const DM_HARD_LIMIT = 150;
const DM_WARNING_THRESHOLD = 140; // Multi-hop delivery may be impacted
const CHANNEL_WARNING_THRESHOLD = 120; // Conservative limit for channels
// Direct delivery allows ~156 bytes; multi-hop requires buffer for path growth.
// Channels include "sender: " prefix in the encrypted payload.
const DM_HARD_LIMIT = 156; // Max for direct delivery
const DM_WARNING_THRESHOLD = 140; // Conservative for multi-hop
const CHANNEL_HARD_LIMIT = 156; // Base limit before sender overhead
const CHANNEL_WARNING_THRESHOLD = 120; // Conservative for multi-hop
const CHANNEL_DANGER_BUFFER = 8; // Red zone starts this many chars before hard limit
interface MessageInputProps {
@@ -51,9 +53,9 @@ export const MessageInput = forwardRef<MessageInputHandle, MessageInputProps>(
hardLimit: DM_HARD_LIMIT,
};
} else if (conversationType === 'channel') {
// Channel hard limit = 150 - senderName.length - 2 (for ": " separator)
// Channel hard limit = 156 - senderName.length - 2 (for ": " separator)
const nameLen = senderName?.length ?? 10;
const hardLimit = Math.max(1, DM_HARD_LIMIT - nameLen - 2);
const hardLimit = Math.max(1, CHANNEL_HARD_LIMIT - nameLen - 2);
return {
warningAt: CHANNEL_WARNING_THRESHOLD,
dangerAt: Math.max(1, hardLimit - CHANNEL_DANGER_BUFFER),
@@ -72,7 +74,7 @@ export const MessageInput = forwardRef<MessageInputHandle, MessageInputProps>(
const len = text.length;
if (len >= limits.hardLimit) {
return { limitState: 'error', warningMessage: 'likely rejected by radio' };
return { limitState: 'error', warningMessage: 'likely truncated by radio' };
}
if (len >= limits.dangerAt) {
return { limitState: 'danger', warningMessage: 'may impact multi-repeater hop delivery' };