Add mailer API and initial mailer view

resource/mailer.go

@@ -0,0 +1,55 @@
+package resource
+
+import (
+	"context"
+	"net/http"
+	"strconv"
+
+	nhttp "github.com/Gleipnir-Technology/nidus-sync/http"
+	"github.com/Gleipnir-Technology/nidus-sync/platform"
+	"github.com/Gleipnir-Technology/nidus-sync/platform/types"
+	//"github.com/aarondl/opt/null"
+	"github.com/gorilla/mux"
+)
+
+type mailerR struct {
+	router *router
+}
+
+func Mailer(r *router) *mailerR {
+	return &mailerR{
+		router: r,
+	}
+}
+
+func (res *mailerR) ByIDGet(ctx context.Context, r *http.Request, user platform.User, query QueryParams) (*types.Mailer, *nhttp.ErrorWithStatus) {
+	vars := mux.Vars(r)
+	id_str := vars["id"]
+	id, err := strconv.Atoi(id_str)
+	if err != nil {
+		return nil, nhttp.NewBadRequest("'%s' is not a valid mailer ID: %w", id_str, err)
+	}
+	mailer, err := platform.MailerByID(ctx, user, int32(id))
+	if err != nil {
+		return nil, nhttp.NewError("mailer by id: %w", err)
+	}
+	return mailer, nil
+}
+func (res *mailerR) List(ctx context.Context, r *http.Request, user platform.User, query QueryParams) ([]*types.Mailer, *nhttp.ErrorWithStatus) {
+	limit := 1000
+	if query.Limit != nil {
+		limit = *query.Limit
+	}
+	mailers, err := platform.MailerList(ctx, user, limit)
+	if err != nil {
+		return nil, nhttp.NewError("list signals: %w", err)
+	}
+	for _, mailer := range mailers {
+		uri, err := res.router.IDToURI("mailer.ByIDGet", int(mailer.ID))
+		if err != nil {
+			return nil, nhttp.NewError("set uri: %w", err)
+		}
+		mailer.URI = uri
+	}
+	return mailers, nil
+}

resource/session.go

@@ -50,6 +50,7 @@ type sessionURLAPI struct {
 	Avatar              string `json:"avatar"`
 	Communication       string `json:"communication"`
 	Impersonation       string `json:"impersonation"`
+	Mailer              string `json:"mailer"`
 	PublicreportMessage string `json:"publicreport_message"`
 	ReviewTask          string `json:"review_task"`
 	ServiceRequest      string `json:"service_request"`
@@ -98,6 +99,7 @@ func (res *sessionR) Get(ctx context.Context, r *http.Request, user platform.Use
 				Avatar:              config.MakeURLNidus("/api/avatar"),
 				Communication:       urls.API.Communication,
 				Impersonation:       config.MakeURLNidus("/api/impersonation"),
+				Mailer:              config.MakeURLNidus("/api/mailer"),
 				PublicreportMessage: urls.API.Publicreport.Message,
 				ReviewTask:          config.MakeURLNidus("/api/review-task"),
 				ServiceRequest:      config.MakeURLNidus("/api/service-request"),