From 390a2162606316dffccabb66ac7c63ed252664eb Mon Sep 17 00:00:00 2001
From: John Costa <johncosta027@gmail.com>
Date: Tue, 19 Aug 2025 21:44:11 +0100
Subject: [PATCH] implementing get list items

---
 backend/models/lists.go   | 23 ++++++++++++++++++
 backend/stacks/handler.go | 50 +++++++++++++++++++++++++++++++++++----
 2 files changed, 69 insertions(+), 4 deletions(-)

diff --git a/backend/models/lists.go b/backend/models/lists.go
index b15aa77..b9111d5 100644
--- a/backend/models/lists.go
+++ b/backend/models/lists.go
@@ -105,6 +105,29 @@ func (m ListModel) List(ctx context.Context, userId uuid.UUID) ([]ListWithItems,
 	return lists, err
 }
 
+type ImageWithSchema struct {
+	model.ImageLists
+
+	Items []model.ImageSchemaItems
+}
+
+func (m ListModel) ListItems(ctx context.Context, listID uuid.UUID) ([]ImageWithSchema, error) {
+	getListItems := SELECT(
+		ImageLists.AllColumns,
+		ImageSchemaItems.AllColumns,
+	).
+		FROM(
+			ImageLists.
+				INNER_JOIN(ImageSchemaItems, ImageSchemaItems.ImageID.EQ(ImageLists.ImageID)),
+		).
+		WHERE(ImageLists.ListID.EQ(UUID(listID)))
+
+	listItems := make([]ImageWithSchema, 0)
+	err := getListItems.QueryContext(ctx, m.dbPool, &listItems)
+
+	return listItems, err
+}
+
 type IDValue struct {
 	ID    string `json:"id"`
 	Value string `json:"value"`
diff --git a/backend/stacks/handler.go b/backend/stacks/handler.go
index 315d339..6a345ea 100644
--- a/backend/stacks/handler.go
+++ b/backend/stacks/handler.go
@@ -10,8 +10,21 @@ import (
 
 	"github.com/charmbracelet/log"
 	"github.com/go-chi/chi/v5"
+	"github.com/google/uuid"
 )
 
+func writeJsonOrError[K any](logger *log.Logger, object K, w http.ResponseWriter) {
+	jsonObject, err := json.Marshal(object)
+	if err != nil {
+		logger.Warn("could not marshal json object", "err", err)
+		w.WriteHeader(http.StatusBadRequest)
+		return
+	}
+
+	w.Write(jsonObject)
+	w.WriteHeader(http.StatusOK)
+}
+
 type StackHandler struct {
 	logger     *log.Logger
 	stackModel models.ListModel
@@ -34,15 +47,43 @@ func (h *StackHandler) getAllStacks(w http.ResponseWriter, r *http.Request) {
 		return
 	}
 
-	jsonLists, err := json.Marshal(lists)
+	writeJsonOrError(h.logger, lists, w)
+}
+
+func (h *StackHandler) getStackItems(w http.ResponseWriter, r *http.Request) {
+	ctx := r.Context()
+
+	_, err := middleware.GetUserID(ctx)
 	if err != nil {
-		h.logger.Warn("could not marshal json lists", "err", err)
+		h.logger.Warn("could not get users in get all stacks", "err", err)
+		w.WriteHeader(http.StatusUnauthorized)
+		return
+	}
+
+	listID := r.PathValue("listID")
+	if len(listID) == 0 {
+		h.logger.Warn("listID is not present in path")
 		w.WriteHeader(http.StatusBadRequest)
 		return
 	}
 
-	w.Write(jsonLists)
-	w.WriteHeader(http.StatusOK)
+	uuidListID, err := uuid.Parse(listID)
+	if err != nil {
+		h.logger.Warn("could not parse list id uuid", "err", err)
+		w.WriteHeader(http.StatusUnauthorized)
+		return
+	}
+
+	// TODO: must check for permission here.
+
+	lists, err := h.stackModel.ListItems(ctx, uuidListID)
+	if err != nil {
+		h.logger.Warn("could not get list items", "err", err)
+		w.WriteHeader(http.StatusBadRequest)
+		return
+	}
+
+	writeJsonOrError(h.logger, lists, w)
 }
 
 func (h *StackHandler) CreateRoutes(r chi.Router) {
@@ -53,6 +94,7 @@ func (h *StackHandler) CreateRoutes(r chi.Router) {
 		r.Use(middleware.SetJson)
 
 		r.Get("/", h.getAllStacks)
+		r.Get("/{listID}", h.getStackItems)
 	})
 }