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Author SHA1 Message Date
Renato Alcara 6c52b01ea7 fix: add pastParticipants to HistorySync with LID normalization and deduplication (#303)
Two bugs fixed compared to prior implementation:

1. history.ts — normalize userJid LID→PN
   pastParticipants[].userJid may arrive as a LID identifier (e.g. "46802258641027@lid").
   The consumer expects a phone number. After building the lidPnMap from conversations
   and phoneNumberToLidMappings, each userJid is resolved to its PN equivalent.
   If the mapping is not available the original value is preserved (no data loss).

2. event-buffer.ts — deduplicate by groupJid + userJid across chunks
   Multiple HistorySync chunks can contain the same group. The previous approach
   concatenated blindly, producing duplicate entries. Now a keyed map
   { [groupJid]: IPastParticipant[] } is used so each group appears once and
   each participant within a group appears at most once.

Types updated (Events.ts):
   - messaging-history.set event includes pastParticipants?: IPastParticipants[]
   - BufferedEventData.historySets.pastParticipants typed as keyed map
2026-03-19 16:44:14 -03:00

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