Mango.Nop.Libraries/Mango.Nop.Core/.github/copilot-instructions.md

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# Mango.Nop.Core — Domain Rules
## Workspace Dependencies
@repo {
name = "Mango.Nop.Core"
type = "framework"
layer = 2
own-dep-repos = ["AyCode.Core: ../../../../../../../Aycode/Source/AyCode.Core"]
}
> Domain framework for NopCommerce plugins. Built on Layer 0 (AyCode.Core), consumed by Layer 3 (specific plugin apps, plural and unknown).
> **AI Agent Protocol:** This repo follows the AI Agent Core Protocol defined in AyCode.Core. Same rules apply: `[LOADED_DOCS]` prefix, docs-before-code, no-re-read policy, context recovery on compaction, explicit consent for modifications. Full protocol: AyCode.Core's `.github/copilot-instructions.md` (see @repo path above).
## Framework-First Design Principle
🛑 **This repo is framework (Layer 2 — Domain framework), not a consumer application.** Provides base types for NopCommerce plugin development. Consumers = specific plugin projects (plural, unknown).
**Before writing code, ask:**
1. Generic (reusable across any NopCommerce plugin)? → belongs HERE
2. Plugin-specific (business logic, specific entities, plugin names)? → NOT HERE
3. Same pattern in 2+ plugins? → promote to framework
**Hard rules:**
- ❌ No plugin names or business-specific terms in code, identifiers, namespaces, or docs
- ❌ No framework → plugin references
- ✅ Abstract/virtual base classes — plugins derive/override
- ✅ Generic DTOs / extensions / interfaces for cross-plugin reuse
- ✅ Mirror NopCommerce entities without a hard runtime dependency on Nop
**Nop-plugin-framework-specific emphasis:**
- `NopDependencies/` mirrors NopCommerce entity classes (same namespace as originals) — stays generic, no plugin-specific logic
- DTOs use type parameters for consumer entity types (e.g. `MgOrderDto<TOrderItemDto, TProductDto>`) — never hardcode concrete plugin types
- Zero runtime NopCommerce dependency — plugin apps bring their own Nop runtime
- Any plugin-specific logic (domain rules, business-specific entities) stays in the plugin, not here
Framework design = **"write the base first, derive the specific later"**.
Full doctrine: AyCode.Core's `.github/copilot-instructions.md#framework-first-design-principle` and `docs/ARCHITECTURE.md#framework-vs-consumer-boundary`.
## Related Documentation
| Document | Topic |
|---|---|
| `docs/ARCHITECTURE.md` | Layer position, Nop-framework-specific architecture notes |
| `docs/CONVENTIONS.md` | Framework-first placement + Nop-specific naming |
| `docs/DTOS.md` | DTO system — two mapping strategies, all DTO types |
| `docs/NOP_DEPENDENCIES.md` | Mirror pattern for NopCommerce entities |
| `README.md` | Folder structure, entity hierarchy, key types index |
## Related Solutions
Types referenced here but not defined may live in AyCode.Core or AyCode.Blazor (see @repo path above for AyCode.Core; AyCode.Blazor is at sibling path).