95 lines
2.4 KiB
Go
95 lines
2.4 KiB
Go
// codeberg.org/mapleopentech/monorepo/cloud/maplefile-backend/internal/usecase/user/getbyid.go
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package user
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import (
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"context"
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"errors"
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"go.uber.org/zap"
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"github.com/gocql/gocql"
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"codeberg.org/mapleopentech/monorepo/cloud/maplefile-backend/config"
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dom_user "codeberg.org/mapleopentech/monorepo/cloud/maplefile-backend/internal/domain/user"
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"codeberg.org/mapleopentech/monorepo/cloud/maplefile-backend/pkg/httperror"
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"codeberg.org/mapleopentech/monorepo/cloud/maplefile-backend/pkg/validation"
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)
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type UserGetByIDUseCase interface {
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Execute(ctx context.Context, id gocql.UUID) (*dom_user.User, error)
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}
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type userGetByIDUseCaseImpl struct {
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config *config.Configuration
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logger *zap.Logger
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repo dom_user.Repository
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}
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func NewUserGetByIDUseCase(config *config.Configuration, logger *zap.Logger, repo dom_user.Repository) UserGetByIDUseCase {
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logger = logger.Named("UserGetByIDUseCase")
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// Defensive check: ensure dependencies are not nil
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if config == nil {
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panic("config cannot be nil")
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}
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if logger == nil {
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panic("logger cannot be nil")
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}
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if repo == nil {
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panic("repository cannot be nil")
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}
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return &userGetByIDUseCaseImpl{
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config: config,
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logger: logger,
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repo: repo,
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}
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}
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func (uc *userGetByIDUseCaseImpl) Execute(ctx context.Context, id gocql.UUID) (*dom_user.User, error) {
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// Defensive check: ensure use case was properly initialized
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if uc.repo == nil {
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uc.logger.Error("repository is nil - use case was not properly initialized")
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return nil, errors.New("internal error: repository not available")
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}
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//
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// STEP 1: Validation.
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//
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e := make(map[string]string)
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if id.String() == "" {
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e["id"] = "missing value"
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}
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if len(e) != 0 {
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uc.logger.Warn("Validation failed for get by ID",
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zap.Any("error", e),
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zap.String("id", id.String()))
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return nil, httperror.NewForBadRequest(&e)
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}
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//
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// STEP 2: Get from database.
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//
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uc.logger.Debug("Getting user by ID",
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zap.String("user_id", id.String()))
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user, err := uc.repo.GetByID(ctx, id)
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if err != nil {
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uc.logger.Error("Failed to get user from repository",
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zap.String("user_id", id.String()),
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zap.Any("error", err))
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return nil, err
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}
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if user != nil {
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uc.logger.Debug("Successfully retrieved user",
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zap.String("user_id", id.String()),
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zap.String("email", validation.MaskEmail(user.Email)))
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} else {
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uc.logger.Debug("User not found",
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zap.String("user_id", id.String()))
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}
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return user, nil
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}
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