mirror of
https://github.com/SamyRai/tercul-backend.git
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bb5e18d162
This commit introduces a new application layer to the codebase, which decouples the GraphQL resolvers from the data layer. The resolvers now call application services, which in turn call the repositories. This change improves the separation of concerns and makes the code more testable and maintainable. Additionally, this commit introduces dataloaders to solve the N+1 problem in the GraphQL resolvers. The dataloaders are used to batch and cache database queries, which significantly improves the performance of the API. The following changes were made: - Created application services for most of the domains. - Refactored the GraphQL resolvers to use the new application services. - Implemented dataloaders for the `Author` aggregate. - Updated the `app.Application` struct to hold the application services instead of the repositories. - Fixed a large number of compilation errors in the test files that arose from these changes. There are still some compilation errors in the `internal/adapters/graphql/integration_test.go` file. These errors are due to the test files still trying to access the repositories directly from the `app.Application` struct. The remaining work is to update these tests to use the new application services.
105 lines
3.0 KiB
Go
105 lines
3.0 KiB
Go
package work
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import (
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"context"
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"errors"
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"tercul/internal/domain"
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)
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// WorkAnalytics contains analytics data for a work
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type WorkAnalytics struct {
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WorkID uint
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ViewCount int64
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LikeCount int64
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CommentCount int64
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BookmarkCount int64
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TranslationCount int64
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ReadabilityScore float64
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SentimentScore float64
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TopKeywords []string
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PopularTranslations []TranslationAnalytics
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}
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// TranslationAnalytics contains analytics data for a translation
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type TranslationAnalytics struct {
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TranslationID uint
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Language string
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ViewCount int64
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LikeCount int64
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}
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// WorkQueries contains the query handlers for the work aggregate.
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type WorkQueries struct {
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repo domain.WorkRepository
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}
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// NewWorkQueries creates a new WorkQueries handler.
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func NewWorkQueries(repo domain.WorkRepository) *WorkQueries {
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return &WorkQueries{
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repo: repo,
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}
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}
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// GetWorkByID retrieves a work by ID.
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func (q *WorkQueries) GetWorkByID(ctx context.Context, id uint) (*domain.Work, error) {
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if id == 0 {
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return nil, errors.New("invalid work ID")
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}
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work, err := q.repo.GetByIDWithOptions(ctx, id, &domain.QueryOptions{Preloads: []string{"Authors"}})
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if err != nil {
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return nil, err
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}
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if work != nil {
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work.AuthorIDs = make([]uint, len(work.Authors))
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for i, author := range work.Authors {
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work.AuthorIDs[i] = author.ID
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}
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}
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return work, nil
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}
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// ListWorks returns a paginated list of works.
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func (q *WorkQueries) ListWorks(ctx context.Context, page, pageSize int) (*domain.PaginatedResult[domain.Work], error) {
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return q.repo.List(ctx, page, pageSize)
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}
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// GetWorkWithTranslations retrieves a work with its translations.
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func (q *WorkQueries) GetWorkWithTranslations(ctx context.Context, id uint) (*domain.Work, error) {
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if id == 0 {
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return nil, errors.New("invalid work ID")
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}
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return q.repo.GetWithTranslations(ctx, id)
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}
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// FindWorksByTitle finds works by title.
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func (q *WorkQueries) FindWorksByTitle(ctx context.Context, title string) ([]domain.Work, error) {
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if title == "" {
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return nil, errors.New("title cannot be empty")
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}
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return q.repo.FindByTitle(ctx, title)
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}
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// FindWorksByAuthor finds works by author ID.
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func (q *WorkQueries) FindWorksByAuthor(ctx context.Context, authorID uint) ([]domain.Work, error) {
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if authorID == 0 {
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return nil, errors.New("invalid author ID")
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}
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return q.repo.FindByAuthor(ctx, authorID)
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}
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// FindWorksByCategory finds works by category ID.
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func (q *WorkQueries) FindWorksByCategory(ctx context.Context, categoryID uint) ([]domain.Work, error) {
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if categoryID == 0 {
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return nil, errors.New("invalid category ID")
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}
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return q.repo.FindByCategory(ctx, categoryID)
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}
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// FindWorksByLanguage finds works by language.
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func (q *WorkQueries) FindWorksByLanguage(ctx context.Context, language string, page, pageSize int) (*domain.PaginatedResult[domain.Work], error) {
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if language == "" {
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return nil, errors.New("language cannot be empty")
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}
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return q.repo.FindByLanguage(ctx, language, page, pageSize)
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}
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