This commit is contained in:
Khwezi Mngoma
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using LiteCharms.Features.MidrandBooks.AuthorBooks;
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using LiteCharms.Features.MidrandBooks.Authors;
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using LiteCharms.Features.MidrandBooks.Products;
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using LiteCharms.Features.MidrandBooks.Seed.Configuration;
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namespace LiteCharms.Features.MidrandBooks.Seed;
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public class ProductsSeederService(ProductService productService, AuthorService authorService, BooksService booksService,
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IOptions<CdnSettings> options, ILogger<ProductsSeederService> logger) : BackgroundService
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{
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private readonly CdnSettings cdnSettings = options.Value;
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protected override async Task ExecuteAsync(CancellationToken stoppingToken)
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{
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logger.LogInformation("Product Seeding started");
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if (cdnSettings.BookCovers is null || cdnSettings.BookCovers.Length == 0)
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{
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logger.LogWarning("No book covers found in CDN settings. Seeding aborted.");
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return;
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}
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// Initialize Bogus Faker engine
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var faker = new Faker();
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var culture = CultureInfo.InvariantCulture;
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// Ensure repeatable data sets if run multiple times by anchoring the seed
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Randomizer.Seed = new Random(42);
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foreach (var bookCover in cdnSettings.BookCovers)
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{
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if (stoppingToken.IsCancellationRequested) break;
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// Generate beautifully mixed eclectic topics on the fly
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var bookTopic = faker.PickRandom(
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// --- Tech & IT ---
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"C# 12 & Modern .NET Architecture",
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"PostgreSQL Database Optimization",
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"Docker & Kubernetes in Production",
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"Domain-Driven Design Paradigms",
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"Artificial Intelligence with Python",
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// --- Sci-Fi & Fantasy ---
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"The Chronicles of the Quantum Nebula",
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"Legends of the Lost Cybernetic Kingdom",
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"Parallel Dimensions and Rogue Time Streams",
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"The Last Android in Neo-Johannesburg",
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// --- Thrillers, Mystery & Crime ---
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"The Midnight Code Cryptograph",
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"Shadows in the Highveld",
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"The Silent Witness of Midrand",
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"Deception on the 14th Floor",
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// --- Business, Finance & Wealth ---
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"Mastering the South African Tech Market",
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"The Modern Entrepreneur's Blueprint",
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"Generational Wealth and Venture Capital",
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"Negotiation Tactics for High-Stakes Deals",
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// --- Self-Help & Personal Growth ---
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"The Art of Relentless Focus",
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"Building High-Performance Habits",
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"The Mindfulness Guide for Software Engineers",
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"Unlocking Creative Flow Under Pressure"
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);
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// Defensive Length Processing to avoid Entity Framework / Postgres string truncation crashes
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var rawTitle = $"{faker.Company.CatchPhrase()} with {bookTopic}";
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var bookTitle = rawTitle.Length > 255 ? rawTitle[..252] + "..." : rawTitle;
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var rawSummary = $"A comprehensive guide to mastering {bookTopic}. Learn modern implementation techniques through real-world software engineering paradigms.";
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var bookSummary = rawSummary.Length > 512 ? rawSummary[..509] + "..." : rawSummary;
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// Generating a single concise paragraph ensures a rich text description falling safely well under 1024
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var rawDescription = faker.Lorem.Paragraph(3);
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var bookDescription = rawDescription.Length > 1024 ? rawDescription[..1021] + "..." : rawDescription;
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var authorFirstName = faker.Name.FirstName();
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var authorLastName = faker.Name.LastName();
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var publisherCompany = faker.Company.CompanyName();
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// Step 1: Add Product
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var productCreateResult = await productService.CreateProductAsync(new Products.Models.CreateProduct
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{
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Name = bookTitle,
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Summary = bookSummary,
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Description = bookDescription,
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ImageUrl = $"{cdnSettings.BaseCdn}{bookCover}",
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Type = ProductTypes.Book,
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Metadata = new Models.ProductMetadata
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{
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CopyrightInfo = $"© {DateTime.UtcNow.Year} {publisherCompany}. All rights reserved.",
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ManufactureDate = faker.Date.Past(3).ToString("yyyy-MM-dd", culture),
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Manufacturer = $"{authorFirstName} {authorLastName} / {publisherCompany}",
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SerialNumber = faker.Phone.PhoneNumber("978-##########")
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},
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Categories = ["Coding", "Computers", "IT"]
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}, stoppingToken);
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if (productCreateResult.IsFailed)
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{
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logger.LogError("Failed to create product: {Error}", productCreateResult.Errors[0].Message);
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break;
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}
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// Step 2: Enable product so it can show on the shop
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var enableProductResult = await productService.UpdateProductStatusAsync(productId: productCreateResult.Value, isEnabled: true, stoppingToken);
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if (enableProductResult.IsFailed)
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{
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logger.LogError("Failed to enable created product: {Error}", enableProductResult.Errors[0].Message);
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break;
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}
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// Step 3: Create Product Price
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var productPriceCreateResult = await productService.CreateProductPriceAsync(productId: productCreateResult.Value, request: new Products.Models.CreateProductPrice
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{
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// Generates fair, dynamic prices in Rands between R150 and R650, snapped neatly to integers
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Amount = Math.Round(faker.Random.Decimal(150m, 650m), 2),
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Discount = 0.0m
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}, stoppingToken);
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if (productPriceCreateResult.IsFailed)
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{
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logger.LogError("Failed to create product price: {Error}", productPriceCreateResult.Errors[0].Message);
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break;
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}
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// Step 4: Create Author
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var authorCreateResult = await authorService.CreateAuthorAsync(request: new Authors.Models.CreateAuthor
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{
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Name = authorFirstName,
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LastName = authorLastName,
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Company = publisherCompany,
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VatNumber = faker.Random.Bool() ? faker.Phone.PhoneNumber("4#########") : "",
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PublisherType = faker.PickRandom<PublisherTypes>(),
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Email = faker.Internet.Email(authorFirstName, authorLastName),
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Website = faker.Internet.Url(),
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ImageUrl = faker.Internet.Avatar(),
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SocialMedia =
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[
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new Models.SocialMedia
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{
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Name = "LinkedIn",
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ImageUrl = "https://cdn.example.com/icons/linkedin.png",
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Type = SocialMediaTypes.LinkedIn,
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Url = $"https://linkedin.com/in/{authorFirstName.ToLower(culture)}-{authorLastName.ToLower(culture)}"
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},
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new Models.SocialMedia
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{
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Name = "GitHub",
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ImageUrl = "https://cdn.example.com/icons/github.png",
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Type = SocialMediaTypes.GitHub,
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Url = $"https://github.com/tech-{authorFirstName.ToLower(culture)}"
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}
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],
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Biography = $"{authorFirstName} {authorLastName} is a veteran technologist and systems architect with over a decade of domain expertise. " + faker.Lorem.Paragraph(2),
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ThumbnailImageUrl = null
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}, stoppingToken);
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if (authorCreateResult.IsFailed)
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{
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logger.LogError("Failed to create author: {Error}", authorCreateResult.Errors[0].Message);
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break;
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}
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// Step 5: Create Author-Book link (product linkage)
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var authorBookCreateResult = await booksService.CreateBookAsync(authorId: authorCreateResult.Value, productId: productCreateResult.Value, stoppingToken);
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if (authorBookCreateResult.IsFailed)
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{
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logger.LogError("Failed to create author-book linkage: {Error}", authorBookCreateResult.Errors[0].Message);
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break;
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}
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var enableAuthorBookResult = await booksService.UpdateBookStatusAsync(bookId: authorBookCreateResult.Value, isEnabled: true, stoppingToken);
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if (enableAuthorBookResult.IsFailed)
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{
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logger.LogError("Failed to enable author-book link: {Error}", enableAuthorBookResult.Errors[0].Message);
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break;
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}
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logger.LogInformation("Successfully seeded book product: {Title}", bookTitle);
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}
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logger.LogInformation("Product Seeding completed successfully.");
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}
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}
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