Created Author, Book, AuthorBook, Page and Product with Price

2026-05-25 22:18:53 +02:00
parent 87da491ed6
commit d55bf4f82f
39 changed files with 1383 additions and 23 deletions
@@ -0,0 +1,182 @@
+using LiteCharms.Features.MidrandBooks.Authors.Models;
+using LiteCharms.Features.MidrandBooks.Extensions;
+using LiteCharms.Features.MidrandBooks.Postgres;
+using LiteCharms.Features.MidrandBooks.Products.Models;
+using LiteCharms.Features.Models;
+
+namespace LiteCharms.Features.MidrandBooks.Authors;
+
+public class AuthorService(IDbContextFactory<MidrandBooksDbContext> contextFactory)
+{
+    public async ValueTask<Result<Product[]>> GetAuthorBooksAsync(long authorId, CancellationToken cancellationToken)
+    {
+        try
+        {
+            await using var context = await contextFactory.CreateDbContextAsync(cancellationToken);
+
+            var author = await context.Authors.FirstOrDefaultAsync(a => a.Id == authorId, cancellationToken);
+
+            if (author is null)
+                return Result.Fail<Product[]>(new Error($"Author with ID {authorId} not found"));
+
+            var books = await context.Books.AsNoTracking()
+                .OrderByDescending(b => b.CreatedAt)
+                .Where(p => p.AuthorId == authorId)
+                .Select(p => p.Book.ToModel())
+                .ToArrayAsync(cancellationToken);
+
+            return books?.Length > 0
+                ? Result.Ok(books)
+                : Result.Fail<Product[]>(new Error($"No books found for author with ID {authorId}"));
+        }
+        catch (Exception ex)
+        {
+            return Result.Fail<Product[]>(new Error(ex.Message).CausedBy(ex));
+        }
+    }
+
+    public async ValueTask<Result> UpdateAuthorStatusAsync(long authorId, bool isEnabled, CancellationToken cancellationToken)
+    {
+        try
+        {
+            await using var context = await contextFactory.CreateDbContextAsync(cancellationToken);
+
+            var author = await context.Authors.FirstOrDefaultAsync(a => a.Id == authorId, cancellationToken);
+
+            if (author is null)
+                return Result.Fail(new Error($"Author with ID {authorId} not found"));
+
+            author.UpdatedAt = DateTime.UtcNow;
+            author.Enabled = isEnabled;
+
+            return await context.SaveChangesAsync(cancellationToken) > 0
+                ? Result.Ok()
+                : Result.Fail(new Error($"Failed to change status of author with ID {authorId}"));
+        }
+        catch (Exception ex)
+        {
+            return Result.Fail(new Error(ex.Message).CausedBy(ex));
+        }
+    }
+
+    public async ValueTask<Result<Author>> GetAuthorAsync(long authorId, CancellationToken cancellationToken = default)
+    {
+        try
+        {
+            using var context = await contextFactory.CreateDbContextAsync(cancellationToken);
+
+            var author = await context.Authors.FirstOrDefaultAsync(a => a.Id == authorId, cancellationToken);
+
+            return author is not null
+                ? Result.Ok(author.ToModel())
+                : Result.Fail<Author>(new Error($"Author with ID {authorId} not found"));
+        }
+        catch (Exception ex)
+        {
+            return Result.Fail<Author>(new Error(ex.Message).CausedBy(ex));
+        }
+    }
+
+    public async ValueTask<Result<Author[]>> GetAuthors(DateRange range, CancellationToken cancellationToken)
+    {
+        try
+        {
+            var fromDate = range.From.ToDateTime(TimeOnly.MinValue);
+            var toDate = range.To.ToDateTime(TimeOnly.MaxValue);
+
+            await using var context = await contextFactory.CreateDbContextAsync(cancellationToken);
+
+            var authors = await context.Authors.AsNoTracking()
+               .OrderByDescending(o => o.CreatedAt)
+                .ThenByDescending(o => o.UpdatedAt)
+               .Where(a => a.CreatedAt >= fromDate && a.CreatedAt <= toDate)
+               .Take(range.MaxRecords)
+               .ToArrayAsync(cancellationToken);
+
+            return authors?.Length > 0
+                ? Result.Ok(authors.Select(a => a.ToModel()).ToArray())
+                : Result.Fail<Author[]>(new Error("No authors found in the specified date range."));
+        }
+        catch (Exception ex)
+        {
+            return Result.Fail<Author[]>(new Error(ex.Message).CausedBy(ex));
+        }
+    }
+
+    public async ValueTask<Result> UpdateAuthorAsync(long authorId, UpdateAuthor request, CancellationToken cancellationToken)
+    {
+        try
+        {
+            await using var context = await contextFactory.CreateDbContextAsync(cancellationToken);
+
+            if (await context.Authors.AnyAsync(a => a.Name == request.Name && a.LastName == request.LastName, cancellationToken))
+                return Result.Fail(new Error($"An author with the name {request.Name} {request.LastName} already exists"));
+
+            if (await context.Authors.AnyAsync(a => a.Email == request.Email, cancellationToken))
+                return Result.Fail(new Error($"An author with the email {request.Email} already exists"));
+
+            var author = await context.Authors.FirstOrDefaultAsync(a => a.Id == authorId, cancellationToken);
+
+            if (author is null)
+                return Result.Fail(new Error($"Author with ID {authorId} not found"));
+
+            author.UpdatedAt = DateTime.UtcNow;
+            author.PublisherType = request.PublisherType;
+            author.Company = request.Company;
+            author.VatNumber = request.VatNumber;
+            author.Name = request.Name;
+            author.LastName = request.LastName;
+            author.Biography = request.Biography;
+            author.Email = request.Email;
+            author.Website = request.Website;
+            author.ImageUrl = request.ImageUrl;
+            author.ThumbnailImageUrl = request.ThumbnailImageUrl;
+            author.SocialMedia = request.SocialMedia;
+
+            return await context.SaveChangesAsync(cancellationToken) > 0
+                ? Result.Ok()
+                : Result.Fail(new Error($"Failed to update author with ID {authorId}"));
+        }
+        catch (Exception ex)
+        {
+            return Result.Fail(new Error(ex.Message).CausedBy(ex));
+        }
+    }
+
+    public async ValueTask<Result<long>> CreateAuthorAsync(CreateAuthor request, CancellationToken cancellationToken = default)
+    {
+        try
+        {
+            using var context = await contextFactory.CreateDbContextAsync(cancellationToken);
+
+            if(await context.Authors.AnyAsync(a => a.Name == request.Name && a.LastName == request.LastName, cancellationToken))
+                return Result.Fail<long>(new Error($"An author with the name {request.Name} {request.LastName} already exists"));
+
+            if(await context.Authors.AnyAsync(a => a.Email == request.Email, cancellationToken))
+                return Result.Fail<long>(new Error($"An author with the email {request.Email} already exists"));
+
+            var newAuthor = context.Authors.Add(new Entities.Author
+            {
+                Company = request.Company,
+                VatNumber = request.VatNumber,
+                PublisherType = request.PublisherType,
+                Name = request.Name,
+                LastName = request.LastName,
+                Biography = request.Biography,
+                Email = request.Email,
+                Website = request.Website,
+                ImageUrl = request.ImageUrl,
+                ThumbnailImageUrl = request.ThumbnailImageUrl,
+                SocialMedia = request.SocialMedia
+            });
+
+            return await context.SaveChangesAsync(cancellationToken) > 0
+                ? Result.Ok(newAuthor.Entity.Id)
+                : Result.Fail<long>(new Error($"Failed to create author {request.Name} {request.LastName}"));
+        }
+        catch (Exception ex)
+        {
+            return Result.Fail<long>(new Error(ex.Message).CausedBy(ex));
+        }
+    }
+}