document processing sequence.mmd

sequenceDiagram
    title Document Processing
    participant ReactApp
    participant NodeJSApp (Server)
    participant OnPremNodeApp
    participant FastAPIApp (api/process-document/)
    participant Database

    ReactApp->>NodeJSApp (Server): Upload File
    NodeJSApp (Server)->>Database: Insert into document_queue
    Database-->>NodeJSApp (Server): Ack
    NodeJSApp (Server)->>NodeJSApp (Server): Add to Processing Queue

    alt OnPremNodeApp is available
        NodeJSApp (Server)->>OnPremNodeApp: Trigger Processing from Queue
    else OnPremNodeApp is down
        NodeJSApp (Server)->>NodeJSApp (Server): Process from Queue
    end

    loop For each document in queue
        NodeJSApp (Server)->>FastAPIApp (api/process-document/): Process Document
        FastAPIApp (api/process-document/)->>Database: Save Embeddings and Summary
        Database-->>FastAPIApp (api/process-document/): Ack
        FastAPIApp (api/process-document/)-->>NodeJSApp (Server): Ack
    end

    NodeJSApp (Server)->>Database: Clear document_queue
    Database-->>NodeJSApp (Server): Ack
    NodeJSApp (Server)->>ReactApp: Processing Complete