delete project

client/src/api/projects.ts

@@ -120,3 +120,7 @@ export const updateProject = async (
 
   return response.data;
 };
+
+export const deleteProject = async (projectId: string): Promise<void> => {
+  await apiFetch<void>(`/projects/${projectId}`, { method: 'DELETE' });
+};

client/src/pages/projects-page.tsx

@@ -2,16 +2,20 @@ import { FormEvent, useMemo, useState } from 'react';
 import { Link, useNavigate } from 'react-router-dom';
 import {
   useCreateProjectMutation,
+  useDeleteProjectMutation,
   useProjectsQuery
 } from '../query/projects';
 
 function ProjectsPage() {
   const { data, isLoading, isError, error } = useProjectsQuery();
   const createProjectMutation = useCreateProjectMutation();
+  const deleteProjectMutation = useDeleteProjectMutation();
 
   const navigate = useNavigate();
   const [newProjectName, setNewProjectName] = useState('');
   const [createError, setCreateError] = useState<string | null>(null);
+  const [deleteError, setDeleteError] = useState<string | null>(null);
+  const [pendingDeletionId, setPendingDeletionId] = useState<string | null>(null);
 
   const projects = data?.data ?? [];
 
@@ -49,6 +53,27 @@ function ProjectsPage() {
     }
   };
 
+  const handleDeleteProject = async (projectId: string, projectName: string) => {
+    const confirmed = window.confirm(
+      `Delete project "${projectName}"? This will remove all items and their prices, but any saved URLs will be kept.`
+    );
+
+    if (!confirmed) {
+      return;
+    }
+
+    setDeleteError(null);
+    setPendingDeletionId(projectId);
+
+    try {
+      await deleteProjectMutation.mutateAsync(projectId);
+    } catch (submitError) {
+      setDeleteError((submitError as Error).message);
+    } finally {
+      setPendingDeletionId(null);
+    }
+  };
+
   return (
     <div className="flex flex-col gap-10">
       <section className="rounded-2xl border border-slate-200 bg-white p-6 shadow-sm">
@@ -100,6 +125,11 @@ function ProjectsPage() {
         {listError ? (
           <p className="rounded-md bg-red-50 px-3 py-2 text-sm text-red-600">{listError}</p>
         ) : null}
+        {deleteError ? (
+          <p className="mt-3 rounded-md bg-red-50 px-3 py-2 text-sm text-red-600">
+            {deleteError}
+          </p>
+        ) : null}
 
         <div className="overflow-x-auto">
           <table className="min-w-full divide-y divide-slate-200 text-sm">
@@ -117,6 +147,9 @@ function ProjectsPage() {
                 <th className="px-4 py-3 text-left font-medium uppercase tracking-wide text-slate-500">
                   Updated
                 </th>
+                <th className="px-4 py-3 text-right font-medium uppercase tracking-wide text-slate-500">
+                  Actions
+                </th>
               </tr>
             </thead>
             <tbody className="divide-y divide-slate-200">
@@ -142,6 +175,18 @@ function ProjectsPage() {
                   <td className="px-4 py-3 text-xs text-slate-500">
                     {new Date(project.updatedAt).toLocaleString()}
                   </td>
+                  <td className="px-4 py-3 text-right">
+                    <button
+                      type="button"
+                      className="inline-flex items-center justify-center rounded-md border border-red-200 px-3 py-1.5 text-xs font-semibold text-red-600 transition hover:bg-red-50 disabled:cursor-not-allowed disabled:border-red-100 disabled:text-red-300"
+                      onClick={() => handleDeleteProject(project.id, project.name)}
+                      disabled={deleteProjectMutation.isPending}
+                    >
+                      {deleteProjectMutation.isPending && pendingDeletionId === project.id
+                        ? 'Deleting…'
+                        : 'Delete'}
+                    </button>
+                  </td>
                 </tr>
               ))}
             </tbody>

client/src/query/projects.ts

@@ -3,6 +3,7 @@ import {
   fetchProject,
   fetchProjects,
   updateProject,
+  deleteProject,
   type CreateProjectPayload,
   type ProjectsListResponse,
   type UpdateProjectPayload
@@ -116,3 +117,16 @@ export const useUpdateItemMutation = (projectId: string | undefined) => {
     }
   });
 };
+
+export const useDeleteProjectMutation = () => {
+  const queryClient = useQueryClient();
+
+  return useMutation({
+    mutationFn: (projectId: string) => deleteProject(projectId),
+    onSuccess: (_, projectId) => {
+      queryClient.invalidateQueries({ queryKey: projectsKeys.list() });
+      queryClient.removeQueries({ queryKey: projectsKeys.detail(projectId) });
+      queryClient.removeQueries({ queryKey: projectsKeys.items(projectId) });
+    }
+  });
+};

server/src/db/projects-repository.ts

@@ -188,8 +188,19 @@ export const updateProject = async (
 };
 
 export const deleteProject = async (id: string): Promise<boolean> => {
+  // Remove dependent items and prices explicitly while leaving shared URLs untouched.
   const result = await query(
     `
+      WITH deleted_prices AS (
+        DELETE FROM item_prices ip
+        USING items i
+        WHERE ip.item_id = i.id
+          AND i.project_id = $1
+      ),
+      deleted_items AS (
+        DELETE FROM items
+        WHERE project_id = $1
+      )
       DELETE FROM projects
       WHERE id = $1
     `,