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Skip messages that we've already seen (based on timestamp) #1

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Skip messages that we've already seen (based on timestamp) #1

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7 changes: 7 additions & 0 deletions src/slack.coffee
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Original file line number Diff line number Diff line change
Expand Up @@ -7,6 +7,7 @@ Util = require 'util'

class SlackBot extends Adapter
@MAX_MESSAGE_LENGTH: 4000
@LAST_MESSAGE_TIMESTAMP_KEY = 'SlackLastMessageTimestamp'

constructor: (robot) ->
@robot = robot
Expand Down Expand Up @@ -91,6 +92,12 @@ class SlackBot extends Adapter
process.exit 0

message: (msg) =>
# Ignore messages we've already seen
lastMessageTimestamp = @robot.brain.get SlackBot.LAST_MESSAGE_TIMESTAMP_KEY
lastMessageTimestamp ?= -Infinity
return if msg.ts <= lastMessageTimestamp
@robot.brain.set SlackBot.LAST_MESSAGE_TIMESTAMP_KEY, msg.ts

# Ignore our own messages
return if msg.user == @self.id

Expand Down