Bot Implementation Research.md

Hubot

• Flow of Input -> Output is managed via Adapters and Hubot's "core" robot functionality. Adapters are initialized with a Hubot instance. They forward messages directly to the robot instance. They are also responsible for building a reply back to the source.
• Architecturally the Hubot (robot core) is aware of the adapter, and the adapter is aware of hubot.

Here's what a quick implementation looks like with SlackBot: https://github.com/slackhq/hubot-slack/blob/master/src/bot.coffee

create Hubot instance -> create adapter instance -> run

To view the sequence diagram, use jay's chrome extension

sequenceDiagram
    participant ChatSource
    participant Adapter
    participant Robot
    
    ChatSource->>Adapter: incoming message
    Adapter->>Adapter: parse the message
    Adapter->>Adapter: handle message type
    Adapter->>Robot: tell robot message has been received
    Robot->>Robot: uses heuristics to construct reply
    Robot->>Adapter: send replied message
    Adapter->>Adapter: wrap reply in ChatSource format
    Adapter->>ChatSource: send reply

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-> parse the message

-> handle the message (these messages are abstracted in hubot here)