services/mtg-online-drafter
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mtg-online-drafter/docs/development/devlog/2025-12-18-213300_strict_cache_structure.md

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2025-12-18 - Restrictive Cache Structure

Overview

Implemented strict separation of card assets into full and crop subdirectories nested under cards/[expansion-code]/. This update forces the application to depend entirely on the local cache for serving card images during runtime, fetching from Scryfall only during the explicit cache creation phase.

Changes

  • Refactored CardService.ts:

    • Updated cacheImages to save files to public/cards/[set]/full/[id].jpg and public/cards/[set]/crop/[id].jpg.
    • Removed the intermediate images directory layer.

  • Updated PackGeneratorService.ts (Server):

    • Hardcoded image and imageArtCrop properties to point to the local server paths (/cards/[set]/full/[id].jpg etc.), removing the fallback to Scryfall URIs.

  • Updated PackGeneratorService.ts (Client):

    • Aligned local image path generation with the new server structure (/cards/[set]/...).

Rationale

To ensure offline availability and consistent performance, the application now treats the local cache as the authoritative source for images. This standardization simplifies asset management and prepares the system for strict air-gapped or high-performance environments where external API dependencies are undesirable during gameplay.