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userapp.go
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userapp.go
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// Package userapp maintains the app layer api for the user domain.
package userapp
import (
"context"
"errors"
"github.com/ardanlabs/service/app/sdk/auth"
"github.com/ardanlabs/service/app/sdk/errs"
"github.com/ardanlabs/service/app/sdk/mid"
"github.com/ardanlabs/service/app/sdk/page"
"github.com/ardanlabs/service/business/domain/userbus"
"github.com/ardanlabs/service/business/sdk/order"
)
// App manages the set of app layer api functions for the user domain.
type App struct {
userBus *userbus.Business
auth *auth.Auth
}
// NewApp constructs a user app API for use.
func NewApp(userBus *userbus.Business) *App {
return &App{
userBus: userBus,
}
}
// NewAppWithAuth constructs a user app API for use with auth support.
func NewAppWithAuth(userBus *userbus.Business, ath *auth.Auth) *App {
return &App{
auth: ath,
userBus: userBus,
}
}
// Create adds a new user to the system.
func (a *App) Create(ctx context.Context, app NewUser) (User, error) {
nc, err := toBusNewUser(app)
if err != nil {
return User{}, errs.New(errs.FailedPrecondition, err)
}
usr, err := a.userBus.Create(ctx, nc)
if err != nil {
if errors.Is(err, userbus.ErrUniqueEmail) {
return User{}, errs.New(errs.Aborted, userbus.ErrUniqueEmail)
}
return User{}, errs.Newf(errs.Internal, "create: usr[%+v]: %s", usr, err)
}
return toAppUser(usr), nil
}
// Update updates an existing user.
func (a *App) Update(ctx context.Context, app UpdateUser) (User, error) {
uu, err := toBusUpdateUser(app)
if err != nil {
return User{}, errs.New(errs.FailedPrecondition, err)
}
usr, err := mid.GetUser(ctx)
if err != nil {
return User{}, errs.Newf(errs.Internal, "user missing in context: %s", err)
}
updUsr, err := a.userBus.Update(ctx, usr, uu)
if err != nil {
return User{}, errs.Newf(errs.Internal, "update: userID[%s] uu[%+v]: %s", usr.ID, uu, err)
}
return toAppUser(updUsr), nil
}
// UpdateRole updates an existing user's role.
func (a *App) UpdateRole(ctx context.Context, app UpdateUserRole) (User, error) {
uu, err := toBusUpdateUserRole(app)
if err != nil {
return User{}, errs.New(errs.FailedPrecondition, err)
}
usr, err := mid.GetUser(ctx)
if err != nil {
return User{}, errs.Newf(errs.Internal, "user missing in context: %s", err)
}
updUsr, err := a.userBus.Update(ctx, usr, uu)
if err != nil {
return User{}, errs.Newf(errs.Internal, "updaterole: userID[%s] uu[%+v]: %s", usr.ID, uu, err)
}
return toAppUser(updUsr), nil
}
// Delete removes a user from the system.
func (a *App) Delete(ctx context.Context) error {
usr, err := mid.GetUser(ctx)
if err != nil {
return errs.Newf(errs.Internal, "userID missing in context: %s", err)
}
if err := a.userBus.Delete(ctx, usr); err != nil {
return errs.Newf(errs.Internal, "delete: userID[%s]: %s", usr.ID, err)
}
return nil
}
// Query returns a list of users with paging.
func (a *App) Query(ctx context.Context, qp QueryParams) (page.Document[User], error) {
pg, err := page.Parse(qp.Page, qp.Rows)
if err != nil {
return page.Document[User]{}, err
}
filter, err := parseFilter(qp)
if err != nil {
return page.Document[User]{}, err
}
orderBy, err := order.Parse(orderByFields, qp.OrderBy, defaultOrderBy)
if err != nil {
return page.Document[User]{}, err
}
usrs, err := a.userBus.Query(ctx, filter, orderBy, pg.Number, pg.RowsPerPage)
if err != nil {
return page.Document[User]{}, errs.Newf(errs.Internal, "query: %s", err)
}
total, err := a.userBus.Count(ctx, filter)
if err != nil {
return page.Document[User]{}, errs.Newf(errs.Internal, "count: %s", err)
}
return page.NewDocument(toAppUsers(usrs), total, pg.Number, pg.RowsPerPage), nil
}
// QueryByID returns a user by its Ia.
func (a *App) QueryByID(ctx context.Context) (User, error) {
usr, err := mid.GetUser(ctx)
if err != nil {
return User{}, errs.Newf(errs.Internal, "querybyid: %s", err)
}
return toAppUser(usr), nil
}