feat: add Start/Stop functionality for apps

internal/app/handler.go

@@ -135,6 +135,28 @@ func (h *Handler) Rollback(w http.ResponseWriter, r *http.Request) {
 	jsonResponse(w, http.StatusAccepted, map[string]string{"message": "rollback started"})
 }
 
+func (h *Handler) Stop(w http.ResponseWriter, r *http.Request) {
+	id, _ := strconv.ParseInt(chi.URLParam(r, "id"), 10, 64)
+
+	if err := h.service.Stop(id); err != nil {
+		jsonResponse(w, http.StatusInternalServerError, map[string]string{"error": err.Error()})
+		return
+	}
+
+	jsonResponse(w, http.StatusOK, map[string]string{"message": "stopped"})
+}
+
+func (h *Handler) Start(w http.ResponseWriter, r *http.Request) {
+	id, _ := strconv.ParseInt(chi.URLParam(r, "id"), 10, 64)
+
+	if err := h.service.Start(id); err != nil {
+		jsonResponse(w, http.StatusInternalServerError, map[string]string{"error": err.Error()})
+		return
+	}
+
+	jsonResponse(w, http.StatusOK, map[string]string{"message": "started"})
+}
+
 func (h *Handler) ListSecrets(w http.ResponseWriter, r *http.Request) {
 	id, _ := strconv.ParseInt(chi.URLParam(r, "id"), 10, 64)
 	secrets, err := h.service.ListSecrets(id)
@@ -542,6 +564,28 @@ func (h *WebHandler) AppRollbackWeb(w http.ResponseWriter, r *http.Request, rend
 	http.Redirect(w, r, "/apps/"+strconv.FormatInt(id, 10), http.StatusSeeOther)
 }
 
+func (h *WebHandler) AppStopWeb(w http.ResponseWriter, r *http.Request, render RenderFunc) {
+	id, _ := strconv.ParseInt(chi.URLParam(r, "id"), 10, 64)
+
+	if err := h.service.Stop(id); err != nil {
+		http.Error(w, err.Error(), http.StatusInternalServerError)
+		return
+	}
+
+	http.Redirect(w, r, "/apps/"+strconv.FormatInt(id, 10), http.StatusSeeOther)
+}
+
+func (h *WebHandler) AppStartWeb(w http.ResponseWriter, r *http.Request, render RenderFunc) {
+	id, _ := strconv.ParseInt(chi.URLParam(r, "id"), 10, 64)
+
+	if err := h.service.Start(id); err != nil {
+		http.Error(w, err.Error(), http.StatusInternalServerError)
+		return
+	}
+
+	http.Redirect(w, r, "/apps/"+strconv.FormatInt(id, 10), http.StatusSeeOther)
+}
+
 func saveFormSecrets(r *http.Request, svc *Service, appID int64) {
 	keys := r.Form["secret_key"]
 	vals := r.Form["secret_val"]

internal/app/service.go

@@ -342,6 +342,66 @@ func (s *Service) Redeploy(id int64) {
 	s.deployWithCommit(id, "")
 }
 
+func (s *Service) Stop(id int64) error {
+	app, err := s.repo.Get(id)
+	if err != nil || app == nil {
+		return fmt.Errorf("app not found")
+	}
+
+	svr, err := s.serverRepo.Get(app.ServerID)
+	if err != nil || svr == nil {
+		return fmt.Errorf("server not found")
+	}
+
+	client, err := ssh.Connect(svr.Host, svr.Port, svr.User, svr.SSHKey)
+	if err != nil {
+		return fmt.Errorf("SSH connect: %w", err)
+	}
+	defer client.Close()
+
+	dc := dockerComposeCmd(client)
+	composePath := fmt.Sprintf("/opt/dockify/apps/%s/docker-compose.yml", app.Name)
+	log.Printf("Stopping %q on %s...", app.Name, svr.Name)
+
+	if out, err := client.Exec(fmt.Sprintf("%s -f %s stop 2>&1", dc, composePath)); err != nil {
+		return fmt.Errorf("compose stop: %w\n%s", err, out)
+	}
+
+	s.repo.UpdateStatus(id, StatusStopped)
+	log.Printf("App %q stopped", app.Name)
+	return nil
+}
+
+func (s *Service) Start(id int64) error {
+	app, err := s.repo.Get(id)
+	if err != nil || app == nil {
+		return fmt.Errorf("app not found")
+	}
+
+	svr, err := s.serverRepo.Get(app.ServerID)
+	if err != nil || svr == nil {
+		return fmt.Errorf("server not found")
+	}
+
+	client, err := ssh.Connect(svr.Host, svr.Port, svr.User, svr.SSHKey)
+	if err != nil {
+		return fmt.Errorf("SSH connect: %w", err)
+	}
+	defer client.Close()
+
+	dc := dockerComposeCmd(client)
+	composePath := fmt.Sprintf("/opt/dockify/apps/%s/docker-compose.yml", app.Name)
+	log.Printf("Starting %q on %s...", app.Name, svr.Name)
+
+	if out, err := client.Exec(fmt.Sprintf("%s -f %s start 2>&1", dc, composePath)); err != nil {
+		return fmt.Errorf("compose start: %w\n%s", err, out)
+	}
+
+	s.repo.UpdateStatus(id, StatusRunning)
+	log.Printf("App %q started", app.Name)
+	return nil
+}
+
 func (s *Service) DashboardStats() *DashboardStats {
 	apps, _ := s.repo.List()
 	servers, _ := s.serverRepo.List()

internal/http/router.go

@@ -101,6 +101,8 @@ func NewRouter(svc *server.Service, appSvc *app.Service, render RenderFunc, serv
 			r.Delete("/{id}", appAPIHandler.Delete)
 			r.Post("/{id}/redeploy", appAPIHandler.Redeploy)
 			r.Post("/{id}/rollback", appAPIHandler.Rollback)
+			r.Post("/{id}/stop", appAPIHandler.Stop)
+			r.Post("/{id}/start", appAPIHandler.Start)
 			r.Get("/{id}/deployments", appAPIHandler.ListDeployments)
 			r.Get("/{id}/logs", appAPIHandler.Logs)
 			r.Get("/{id}/secrets", appAPIHandler.ListSecrets)
@@ -138,6 +140,12 @@ func NewRouter(svc *server.Service, appSvc *app.Service, render RenderFunc, serv
 			r.Post("/{id}/rollback", func(w http.ResponseWriter, r *http.Request) {
 				appWebHandler.AppRollbackWeb(w, r, render)
 			})
+			r.Post("/{id}/stop", func(w http.ResponseWriter, r *http.Request) {
+				appWebHandler.AppStopWeb(w, r, render)
+			})
+			r.Post("/{id}/start", func(w http.ResponseWriter, r *http.Request) {
+				appWebHandler.AppStartWeb(w, r, render)
+			})
 			r.Get("/{id}/edit", func(w http.ResponseWriter, r *http.Request) {
 				appWebHandler.AppEditPage(w, r, render)
 			})

internal/http/templates/apps_detail.html

@@ -86,6 +86,16 @@ <h3>Config Files</h3>
   </div>
 
   <div class="btn-group">
+    {{if eq .App.Status "running"}}
+    <form method="POST" action="apps/{{.App.ID}}/stop" style="display:inline">
+      <button type="submit" class="btn">Stop</button>
+    </form>
+    {{end}}
+    {{if eq .App.Status "stopped"}}
+    <form method="POST" action="apps/{{.App.ID}}/start" style="display:inline">
+      <button type="submit" class="btn btn-primary">Start</button>
+    </form>
+    {{end}}
     <a href="apps/{{.App.ID}}/edit" class="btn btn-primary">Edit</a>
     <form method="POST" action="apps/{{.App.ID}}/redeploy" style="display:inline">
       <button type="submit" class="btn">Redeploy</button>
@@ -126,7 +136,7 @@ <h2>Deployment History</h2>
   </table>
   {{end}}
 
-  {{if eq .App.Status "running"}}
+  {{if or (eq .App.Status "running") (eq .App.Status "stopped")}}
   <h2>Logs</h2>
   <div class="log-container">
     <div class="log-toolbar">