Feature Request: Enhance "Scan Downloaded Products" for Flexible Folder Naming and Local Library Management

[daiaji]

Hello,

First of all, thank you for creating such a fantastic and modern tool for managing a DLsite library! The UI is clean, and the core functionality for syncing with a DLsite account is excellent.

I'm opening this issue to suggest an enhancement to the local library management, specifically regarding the Scan Downloaded Products feature.

The Problem:

Currently, the "Scan Downloaded Products" function requires local folders to be named exactly as the product ID (e.g., RJ123456). While this is very robust for the program, it creates a significant usability problem for users who manage their files directly in the file explorer. A folder named RJ123456 gives no immediate information about its contents, making it very difficult to browse, backup, or work on files without first having to search within the dlsite-manager UI to identify the game.

My Use Case & Justification:

My primary use case involves more than just storing and playing games. I am often involved in modding game files and integrating fan translations. This requires me to frequently navigate and interact with the game folders directly in my file system. Having human-readable folder names like [My Game Title] [RJ123456] is essential for this workflow. Relying solely on the manager to identify every single folder before I can work on it becomes very inefficient and breaks the workflow. The current implementation forces a choice between having a readable file system and having a library recognized by the manager.

Proposed Solution(s):

I would like to propose an enhancement to the folder scanning logic to make it more flexible. Here are a few potential levels of implementation:

1. Flexible RJ-Code Parsing (Core Request): The most impactful change would be to allow the scanner to extract the RJxxxxxx code from a folder name, rather than requiring the name to be an exact match.

   • Good: Support a fixed, common pattern like [Title] [RJ Code] or Title (RJ Code).
   • Better: Automatically find any RJxxxxxx pattern within the folder name, regardless of other text or brackets.
   • Ideal (Maximum Flexibility): Allow the user to specify a custom regular expression (regex) in the settings to extract the product ID. This would provide ultimate flexibility for all users' personal naming schemes.

2. (Optional / Long-term) Integrated Organizer Tool: To take this a step further, an integrated tool that helps organize existing, messy libraries would be a game-changer. This could be a "power-user" feature that:

   • Scans folders that don't have an RJ code.
   • Uses the folder name as a search query against the DLsite API.
   • Presents the user with potential matches and allows them to rename the folder to a standardized, readable format (e.g., [Title] [RJ Code]).

Helpful References for Inspiration:

For inspiration on how other tools have tackled this organization problem, here are two open-source projects. They demonstrate different approaches to identifying and organizing local files:

• dlsite-organizer (Go, Symlinks): https://github.com/DarylSerrano/dlsite-organizer
  • This tool uses a robust database and CLI but organizes via symlinks. Its file identification logic is a good reference.
• dlsite_organizer (Python, Renaming): https://github.com/Alocks/dlsite_organizer
  • This Python script is particularly interesting because it includes a function to find and rename folders that are missing their RJ codes, which is a very common problem for users with older collections. This is the kind of functionality I describe in Proposal.

Thank you for considering this feedback. I believe this enhancement would significantly improve the experience for users who actively manage their local files and would truly make dlsite-manager the definitive tool for DLsite collectors. I'm happy to provide more details or help with testing if needed.

[AcrylicShrimp]

Thank you! Let me implement this, I think it is an easy task for me.