1

backend/app/main.py

@@ -8,7 +8,7 @@ from fastapi.responses import FileResponse, PlainTextResponse
 
 from backend.app.config import settings
 from backend.app.managers.knowledge_manager import DuplicateSourceError, KnowledgeManager
-from backend.app.models.schemas import MarkdownUpdate, SubjectCreate, WeekCreate, WeekUpdate
+from backend.app.models.schemas import MarkdownUpdate, SubjectCreate, SubjectUpdate, WeekCreate, WeekUpdate
 from backend.app.services.ingestion_service import IngestionService
 
 app = FastAPI(title="Knowledge Station", version="0.1.0")
@@ -60,6 +60,14 @@ def get_subject(subject_id: int) -> dict:
         raise HTTPException(status_code=404, detail=str(exc)) from exc
 
 
+@app.put("/subjects/{subject_id}")
+def update_subject(subject_id: int, payload: SubjectUpdate) -> dict:
+    try:
+        return manager.update_subject(subject_id, payload.name)
+    except ValueError as exc:
+        raise HTTPException(status_code=400, detail=str(exc)) from exc
+
+
 @app.delete("/subjects/{subject_id}")
 def delete_subject(subject_id: int) -> dict:
     try:

backend/app/managers/knowledge_manager.py

@@ -154,6 +154,14 @@ class KnowledgeManager:
             raise ValueError("Materia no encontrada")
         return dict(row)
 
+    def update_subject(self, subject_id: int, name: str) -> dict[str, Any]:
+        if not name.strip():
+            raise ValueError("El nombre de la materia no puede estar vacio")
+        self.get_subject(subject_id)
+        with self._connect() as conn:
+            conn.execute("update subjects set name = ? where id = ?", (name.strip(), subject_id))
+        return self.get_subject(subject_id)
+
     def delete_subject(self, subject_id: int) -> None:
         subject = self.get_subject(subject_id)
         with self._connect() as conn:
@@ -224,6 +232,8 @@ class KnowledgeManager:
     def update_week(self, subject_id: int, current_number: int, new_number: int, title: str | None = None) -> dict[str, Any]:
         subject = self.get_subject(subject_id)
         week = self.get_week(subject_id, current_number)
+        old_dir: Path | None = None
+        new_dir: Path | None = None
         if new_number != current_number:
             with self._connect() as conn:
                 existing = conn.execute(
@@ -248,6 +258,22 @@ class KnowledgeManager:
                 "update weeks set number = ?, title = ? where id = ?",
                 (new_number, title, week["id"]),
             )
+            if old_dir and new_dir:
+                old_prefix = str(old_dir)
+                new_prefix = str(new_dir)
+                conn.execute(
+                    "update sources set stored_path = replace(stored_path, ?, ?) where week_id = ? and stored_path like ?",
+                    (old_prefix, new_prefix, week["id"], f"{old_prefix}%"),
+                )
+                conn.execute(
+                    """
+                    update documents
+                    set markdown_path = replace(markdown_path, ?, ?)
+                    where source_id in (select id from sources where week_id = ?)
+                      and markdown_path like ?
+                    """,
+                    (old_prefix, new_prefix, week["id"], f"{old_prefix}%"),
+                )
         return self.get_week(subject_id, new_number)
 
     def week_dir(self, subject_slug: str, week_number: int) -> Path:

backend/app/models/schemas.py

@@ -8,6 +8,10 @@ class SubjectCreate(BaseModel):
     name: str = Field(min_length=1)
 
 
+class SubjectUpdate(BaseModel):
+    name: str = Field(min_length=1)
+
+
 class Subject(BaseModel):
     id: int
     name: str

frontend/app/page.tsx

@@ -10,6 +10,8 @@ export default function DashboardPage() {
   const [subjects, setSubjects] = useState<Subject[]>([]);
   const [settings, setSettings] = useState<SettingsStatus | null>(null);
   const [name, setName] = useState("");
+  const [editingSubject, setEditingSubject] = useState<Subject | null>(null);
+  const [editName, setEditName] = useState("");
   const [loading, setLoading] = useState(true);
   const [error, setError] = useState("");
 
@@ -31,9 +33,47 @@ export default function DashboardPage() {
   async function createSubject(event: FormEvent) {
     event.preventDefault();
     if (!name.trim()) return;
-    await api.createSubject(name.trim());
-    setName("");
-    await load();
+    try {
+      setError("");
+      await api.createSubject(name.trim());
+      setName("");
+      await load();
+    } catch (err) {
+      setError(err instanceof Error ? err.message : "No se pudo crear la materia");
+    }
+  }
+
+  function startEdit(subject: Subject) {
+    setEditingSubject(subject);
+    setEditName(subject.name);
+    setError("");
+  }
+
+  async function saveEdit(event: FormEvent) {
+    event.preventDefault();
+    if (!editingSubject || !editName.trim()) return;
+    try {
+      setError("");
+      await api.updateSubject(editingSubject.id, editName.trim());
+      setEditingSubject(null);
+      setEditName("");
+      await load();
+    } catch (err) {
+      setError(err instanceof Error ? err.message : "No se pudo editar la materia");
+    }
+  }
+
+  async function deleteSubject(subject: Subject) {
+    const confirmed = window.confirm(`Eliminar la materia "${subject.name}" tambien borrara todas sus semanas, archivos subidos, Markdown procesado y exports. Esta accion no se puede deshacer.`);
+    if (!confirmed) return;
+    try {
+      setError("");
+      await api.deleteSubject(subject.id);
+      if (editingSubject?.id === subject.id) setEditingSubject(null);
+      await load();
+    } catch (err) {
+      setError(err instanceof Error ? err.message : "No se pudo eliminar la materia");
+    }
   }
 
   return (
@@ -50,13 +90,15 @@ export default function DashboardPage() {
           {loading ? <Card>Cargando...</Card> : (
             <div className="grid gap-4 md:grid-cols-2">
               {subjects.map((subject) => (
-                <Link key={subject.id} href={`/subjects/${subject.id}`}>
-                  <Card className="transition hover:border-blue-400/40 hover:bg-blue-500/10">
-                    <div className="text-xl font-semibold">{subject.name}</div>
-                    <div className="mt-2 text-sm text-slate-400">{subject.slug}</div>
-                    <div className="mt-5 text-sm text-blue-300">Abrir materia</div>
-                  </Card>
-                </Link>
+                <Card key={subject.id} className="transition hover:border-blue-400/40 hover:bg-blue-500/10">
+                  <div className="text-xl font-semibold">{subject.name}</div>
+                  <div className="mt-2 text-sm text-slate-400">{subject.slug}</div>
+                  <div className="mt-5 flex flex-wrap gap-2 text-sm">
+                    <Link className="rounded-lg bg-blue-600 px-3 py-2 font-medium text-white hover:bg-blue-500" href={`/subjects/${subject.id}`}>Abrir materia</Link>
+                    <button className="rounded-lg border border-white/10 px-3 py-2 text-slate-200 hover:bg-white/10" type="button" onClick={() => startEdit(subject)}>Editar</button>
+                    <button className="rounded-lg border border-red-400/30 px-3 py-2 text-red-200 hover:bg-red-500/10" type="button" onClick={() => deleteSubject(subject)}>Eliminar</button>
+                  </div>
+                </Card>
               ))}
               {subjects.length === 0 && <Card className="md:col-span-2">No hay materias todavia. Crea la primera para empezar.</Card>}
             </div>
@@ -64,6 +106,21 @@ export default function DashboardPage() {
         </section>
 
         <aside className="space-y-4">
+          {editingSubject && (
+            <Card>
+              <h2 className="text-lg font-semibold">Editar materia</h2>
+              <p className="mt-1 text-sm text-slate-400">Solo cambia el nombre visible. La carpeta interna queda igual para mantener rutas estables.</p>
+              <form className="mt-4 space-y-3" onSubmit={saveEdit}>
+                <Label>Nombre</Label>
+                <Input value={editName} onChange={(event) => setEditName(event.target.value)} />
+                <div className="flex gap-2">
+                  <Button className="flex-1" disabled={!editName.trim()}>Guardar</Button>
+                  <button className="flex-1 rounded-xl border border-white/10 px-4 py-2 hover:bg-white/10" type="button" onClick={() => setEditingSubject(null)}>Cancelar</button>
+                </div>
+              </form>
+            </Card>
+          )}
+
           <Card>
             <h2 className="text-lg font-semibold">Nueva materia</h2>
             <form className="mt-4 space-y-3" onSubmit={createSubject}>

frontend/app/subjects/[subjectId]/page.tsx

@@ -62,6 +62,19 @@ export default function SubjectPage({ params }: { params: { subjectId: string }
     }
   }
 
+  async function deleteWeek(week: Week) {
+    const confirmed = window.confirm(`Eliminar la semana ${week.number} tambien borrara sus archivos subidos, Markdown procesado y exports. Esta accion no se puede deshacer.`);
+    if (!confirmed) return;
+    try {
+      setError("");
+      await api.deleteWeek(subjectId, week.number);
+      if (editingWeek?.id === week.id) setEditingWeek(null);
+      await load();
+    } catch (err) {
+      setError(err instanceof Error ? err.message : "No se pudo eliminar la semana");
+    }
+  }
+
   return (
     <Shell>
       <Link href="/" className="text-sm text-blue-300">Volver a materias</Link>
@@ -78,6 +91,7 @@ export default function SubjectPage({ params }: { params: { subjectId: string }
                 <div className="mt-5 flex flex-wrap gap-2 text-sm">
                   <Link className="rounded-lg bg-blue-600 px-3 py-2 font-medium text-white hover:bg-blue-500" href={`/subjects/${subjectId}/weeks/${week.number}`}>Abrir semana</Link>
                   <button className="rounded-lg border border-white/10 px-3 py-2 text-slate-200 hover:bg-white/10" type="button" onClick={() => startEdit(week)}>Editar</button>
+                  <button className="rounded-lg border border-red-400/30 px-3 py-2 text-red-200 hover:bg-red-500/10" type="button" onClick={() => deleteWeek(week)}>Eliminar</button>
                 </div>
               </Card>
             ))}

frontend/lib/api.ts

@@ -65,6 +65,16 @@ export const api = {
       body: JSON.stringify({ name }),
     }));
   },
+  async updateSubject(id: number, name: string) {
+    return parseResponse<Subject>(await fetch(`${API_URL}/subjects/${id}`, {
+      method: "PUT",
+      headers: { "Content-Type": "application/json" },
+      body: JSON.stringify({ name }),
+    }));
+  },
+  async deleteSubject(id: number) {
+    return parseResponse<{ status: string }>(await fetch(`${API_URL}/subjects/${id}`, { method: "DELETE" }));
+  },
   async weeks(subjectId: number) {
     return parseResponse<Week[]>(await fetch(`${API_URL}/subjects/${subjectId}/weeks`, { cache: "no-store" }));
   },
@@ -85,6 +95,9 @@ export const api = {
       body: JSON.stringify({ number, title: title || null }),
     }));
   },
+  async deleteWeek(subjectId: number, weekNumber: number) {
+    return parseResponse<{ status: string }>(await fetch(`${API_URL}/subjects/${subjectId}/weeks/${weekNumber}`, { method: "DELETE" }));
+  },
   async sources(subjectId: number, weekNumber: number) {
     return parseResponse<Source[]>(await fetch(`${API_URL}/subjects/${subjectId}/weeks/${weekNumber}/sources`, { cache: "no-store" }));
   },