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Handle events with action TradePubkey #412

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merged 1 commit into from
Dec 30, 2024
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@grunch grunch commented Dec 30, 2024

Summary by CodeRabbit modified by @grunch

  • New Features

    • Added a new functionality to handle case where Mostrod created the child order but it doesn't have the trade public key
    • Implemented a new action to process trade public key messages
  • Bug Fixes

    • Added comprehensive error checking for public key trading scenarios
    • Implemented validation for order status and participant public keys

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coderabbitai bot commented Dec 30, 2024

Walkthrough

The pull request introduces a new module trade_pubkey to the application, expanding its functionality to handle public key trading actions. The changes modify the application's message processing framework by adding a new action type Action::TradePubkey and implementing a corresponding trade_pubkey_action function. This new functionality allows users to trade public keys within existing order workflows, with comprehensive error handling and database interaction mechanisms.

Changes

File Change Summary
src/app.rs - Added pub mod trade_pubkey module declaration
- Imported trade_pubkey_action function
- Updated check_trade_index to handle Action::TradePubkey
- Modified handle_message_action to route TradePubkey action
src/app/trade_pubkey.rs - Added trade_pubkey_action async function
- Implemented logic for processing public key trading messages
- Includes order validation, sender verification, and database updates

Sequence Diagram

sequenceDiagram
    participant User
    participant App
    participant Database
    
    User->>App: Send TradePubkey Message
    App->>Database: Retrieve Order
    alt Order Not Found
        App-->>User: Error: No Order
    else Order Not Pending
        App-->>User: Error: Invalid Order Status
    else Sender is Valid
        App->>Database: Update Order with Public Key
        App->>User: Confirm Public Key Trade
    else Sender is Invalid
        App-->>User: Error: Invalid Public Key
    end
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Possibly related PRs

  • Rate user feature #404: Involves user management and database interactions that share similarities with the public key trading functionality introduced in this PR.

Poem

🐰 Pubkeys dancing, a cryptic delight,
Trades whisper secrets in the digital night
Orders pending, keys now free
Blockchain ballet of identity
A rabbit's code, both swift and bright! 🔑


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Actionable comments posted: 0

🧹 Nitpick comments (3)
src/app/trade_pubkey.rs (3)

33-43: Status validation is thorough, but note consistency with non-existent orders.
When the status is invalid (not Pending), you send a “can't do” message to the user. For non-existent orders, the code simply returns Ok(()). Consider using a similar approach as here, sending a user notification if the order does not exist, for consistency in user messaging.


59-59: Minor typo in comment.
“// We a message to the seller” could be corrected to “// We send a message to the seller”.

-// We a message to the seller
+// We send a message to the seller

70-70: Consider transactional updates for atomicity.
Updating the order in the database is crucial. If other modifications (e.g., sending messages) need to happen atomically, wrapping them in a database transaction can prevent inconsistent states if errors occur.

📜 Review details

Configuration used: CodeRabbit UI
Review profile: CHILL
Plan: Pro

📥 Commits

Reviewing files that changed from the base of the PR and between 50aa8ec and 7beff4f.

📒 Files selected for processing (2)
  • src/app.rs (4 hunks)
  • src/app/trade_pubkey.rs (1 hunks)
🔇 Additional comments (8)
src/app/trade_pubkey.rs (4)

1-11: Imports look consistent and purposeful.
All imported symbols (send_cant_do_msg, send_new_order_msg, etc.) are referenced in this file, and no redundant imports are evident. Good job!


25-31: Consider informing the user when the order is not found.
Currently, the code logs an error but then returns Ok(()) without sending any user-facing message. If the caller expects a notification (e.g., a DM) indicating the order does not exist, you may wish to send it before returning. Otherwise, this silent flow might confuse end-users.


45-56: Match logic correctly restricts trades to known buyer/seller.
This prevents unauthorized users from trading on an order by matching sender.to_string() to master_buyer_pubkey or master_seller_pubkey. Looks secure and well-implemented.


57-57: Double-check the semantics of overwriting creator_pubkey.
By setting order.creator_pubkey = event.rumor.pubkey.to_string(), you are effectively reassigning the order’s creator_pubkey. Is that intentional, or should you store this as a separate “last updated by” pubkey?

src/app.rs (4)

18-18: New module declaration is cleanly added.
Publishes the trade_pubkey module for use in other parts of the application. This is straightforward and organized.


34-34: Importing the new action handler.
Importation of trade_pubkey_action is appropriately placed among other action imports, maintaining clarity.


76-76: Handled new action in check_trade_index.
Including Action::TradePubkey in the trading-related actions ensures check_trade_index logic runs for public key trades. This is consistent with your approach for buy/sell actions.


195-195: Routing Action::TradePubkey to trade_pubkey_action.
Seamlessly integrates the new action into the existing handling structure. Confirm if you also need to pass my_keys or ln_client for any key-related or LN tasks. If not, this is perfectly fine.

@grunch grunch merged commit 705dc36 into main Dec 30, 2024
2 checks passed
@grunch grunch deleted the handle-trade-pubkey-event branch December 30, 2024 20:31
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