# IEbookRepository

- File ID: file:1hlb3r7:iebookrepository-cs
- Path: NexusReader.Application/Abstractions/Persistence/IEbookRepository.cs
- Role: repository
- Layer: application

## Purpose

Defines the application-layer abstraction for ebook and author persistence operations (repository interface) so the Application layer can depend on an interface rather than EF Core or other infra implementations.

## Key Details

Interface lives in Application.Abstractions.Persistence to decouple application logic from EF Core; methods indicate staged add semantics and an explicit SaveChangesAsync for committing changes.

## Symbols

- IEbookRepository: Defines the application-layer abstraction for ebook and author persistence operations (repository interface) so the Application layer can depend on an interface rather than EF Core or other infra implementations.
- FindAuthorByNameAsync(): Asynchronously finds an Author by name using a case-insensitive comparison.
- AddAuthor(): Stages a new Author in the repository (adds to the change tracker / in-memory unit-of-work) but does not persist.
- AddEbook(): Stages a new Ebook in the repository (adds to the change tracker / in-memory unit-of-work) but does not persist.
- SaveChangesAsync(): Persists all staged changes to the underlying store and returns the number of affected entries.
- IEbookRepository: Application-layer abstraction describing persistence operations for Ebook and Author to avoid a direct dependency on EF Core.

## Dependencies

- No resolved dependencies.

## Calls

- No resolved calls.

## Unresolved References

- dependency-target: NexusReader.Domain/Entities
- interaction-target: Task<Author?> FindAuthorByNameAsync(string name, CancellationToken cancellationToken = default);

## Coverage

- Symbols: 6
- Executable symbols: 4
- Executable symbols with control flow: 4
- Grounded edges: 6
- Unresolved references: 2
- Control-flow fragments: 4
- Unresolved jumps: 0
- Unsupported constructs: 0
- Control-flow coverage: 100%
- Required diagrams: 2
- Generated diagrams: 2

## Control Flow Fragments

- FindAuthorByNameAsync: 5 nodes, 4 edges, 0 jumps, 0 unsupported constructs
- AddAuthor: 3 nodes, 2 edges, 0 jumps, 0 unsupported constructs
- AddEbook: 3 nodes, 2 edges, 0 jumps, 0 unsupported constructs
- SaveChangesAsync: 3 nodes, 2 edges, 0 jumps, 0 unsupported constructs

## Diagrams

### IEbookRepository Neighborhood

```mermaid
flowchart LR
    class_ir9z2o_iebookrepository("IEbookRepository")
    file_1hlb3r7_iebookrepository_cs("IEbookRepository")
    method_2iyuvn_addauthor[["AddAuthor()"]]
    method_3jcuy_findauthorbynameasync[["FindAuthorByNameAsync()"]]
    method_grwwrg_savechangesasync[["SaveChangesAsync()"]]
    method_ij0vl0_addebook[["AddEbook()"]]
    type_sv23ol_iebookrepository[/"IEbookRepository"/]
```

### IEbookRepository Execution Overview

```mermaid
flowchart TD
    class_ir9z2o_iebookrepository("IEbookRepository")
    method_2iyuvn_addauthor[["AddAuthor()"]]
    method_3jcuy_findauthorbynameasync[["FindAuthorByNameAsync()"]]
    method_grwwrg_savechangesasync[["SaveChangesAsync()"]]
    method_ij0vl0_addebook[["AddEbook()"]]
    unresolved_unresolved_1bf761s_interaction_target{"Unresolved: Task<Author?> FindAuthorByNameAsync(string name, CancellationToken cancellationToken = default);"}
    class_ir9z2o_iebookrepository -->|contains| method_2iyuvn_addauthor
    class_ir9z2o_iebookrepository -->|contains| method_3jcuy_findauthorbynameasync
    class_ir9z2o_iebookrepository -->|contains| method_grwwrg_savechangesasync
    class_ir9z2o_iebookrepository -->|contains| method_ij0vl0_addebook
    class_ir9z2o_iebookrepository -->|unresolved interaction| unresolved_unresolved_1bf761s_interaction_target
```

## Diagram Validation

- Status: pass
