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path: root/app/middleware/user.go
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package middleware

import (
	"net/http"

	"github.com/xlgmokha/x/pkg/log"
	"github.com/xlgmokha/x/pkg/mapper"
	"github.com/xlgmokha/x/pkg/x"
	"gitlab.com/gitlab-org/software-supply-chain-security/authorization/sparkled/app/cfg"
	"gitlab.com/gitlab-org/software-supply-chain-security/authorization/sparkled/app/domain"
	"gitlab.com/gitlab-org/software-supply-chain-security/authorization/sparkled/pkg/oidc"
)

func User(db domain.Repository[*domain.User]) func(http.Handler) http.Handler {
	return func(next http.Handler) http.Handler {
		return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
			idToken := cfg.IDToken.From(r.Context())
			if x.IsZero(idToken) {
				next.ServeHTTP(w, r)
				return
			}

			user := db.Find(domain.ID(idToken.Subject))
			if !x.IsPresent(user) {
				user = mapper.MapFrom[*oidc.IDToken, *domain.User](idToken)
				if err := db.Save(user); err != nil {
					log.WithFields(r.Context(), log.Fields{"error": err})
					next.ServeHTTP(w, r)
					return
				}
			}

			next.ServeHTTP(w, r.WithContext(cfg.CurrentUser.With(r.Context(), user)))
		})
	}
}