CUB-135: Subscribe to SSE in React and update UI

backend/cmd/server/main.go

@@ -6,32 +6,31 @@ import (
 	"net/http"
 	"os"
 	"os/signal"
-	"strconv"
-	"sync"
 	"syscall"
 	"time"
 
-	"github.com/CubeCraft-Creations/Extrudex/backend/internal/clients"
 	"github.com/CubeCraft-Creations/Extrudex/backend/internal/config"
 	"github.com/CubeCraft-Creations/Extrudex/backend/internal/db"
-	"github.com/CubeCraft-Creations/Extrudex/backend/internal/models"
 	"github.com/CubeCraft-Creations/Extrudex/backend/internal/router"
 	"github.com/CubeCraft-Creations/Extrudex/backend/internal/sse"
-	"github.com/CubeCraft-Creations/Extrudex/backend/internal/workers"
-	"github.com/jackc/pgx/v5/pgxpool"
 )
 
 func main() {
+	// Setup structured logging
 	slog.SetDefault(slog.New(slog.NewTextHandler(os.Stdout, &slog.HandlerOptions{
 		Level: slog.LevelInfo,
 	})))
 
+	// Load configuration
 	cfg, err := config.Load()
 	if err != nil {
 		slog.Error("failed to load config", "error", err)
 		os.Exit(1)
 	}
 
+	slog.Info("config loaded", "port", cfg.Port, "cors_origin", cfg.CorsOrigin)
+
+	// Connect to database
 	dbPool, err := db.NewPool(cfg.DatabaseURL)
 	if err != nil {
 		slog.Error("failed to connect to database", "error", err)
@@ -39,38 +38,30 @@ func main() {
 	}
 	defer db.ClosePool(dbPool)
 
+	slog.Info("database connected")
+
+	// Create SSE broadcaster and start it
 	sseBC := sse.NewBroadcaster(128)
 	sseBC.Start()
 	defer sseBC.Stop()
 
+	slog.Info("sse broadcaster started")
+
+	// Create router
 	r := router.New(cfg, dbPool, sseBC)
 
-	// ── Workers ─────────────────────────────────────────────────────────
+	// Create HTTP server
-
+	// WriteTimeout is 0 for SSE support — the Chi middleware.Timeout(60s)
-	var wg sync.WaitGroup
+	// handles request-level timeouts on non-SSE routes.
-	workersCtx, cancelWorkers := context.WithCancel(context.Background())
-	defer cancelWorkers()
-
-	pollInterval, _ := time.ParseDuration(cfg.MoonrakerPollInterval)
-	if pollInterval <= 0 {
-		pollInterval = 10 * time.Second
-	}
-
-	activePrinters := listActivePrinters(workersCtx, dbPool)
-	for _, p := range activePrinters {
-		startWorkerForPrinter(workersCtx, &wg, cfg, dbPool, p, pollInterval)
-	}
-
-	// ── HTTP server ─────────────────────────────────────────────────────
-
 	server := &http.Server{
 		Addr:         ":" + cfg.Port,
 		Handler:      r,
 		ReadTimeout:  15 * time.Second,
-		WriteTimeout: 0,
+		WriteTimeout: 0, // disabled for SSE long-lived connections
 		IdleTimeout:  60 * time.Second,
 	}
 
+	// Start server in goroutine
 	go func() {
 		slog.Info("server starting", "addr", server.Addr)
 		if err := server.ListenAndServe(); err != nil && err != http.ErrServerClosed {
@@ -79,119 +70,21 @@ func main() {
 		}
 	}()
 
+	// Wait for shutdown signal
 	quit := make(chan os.Signal, 1)
 	signal.Notify(quit, syscall.SIGINT, syscall.SIGTERM)
 	<-quit
 
 	slog.Info("server shutting down")
-	cancelWorkers()
 
-	shutdownCtx, shutdownCancel := context.WithTimeout(context.Background(), 30*time.Second)
+	// Graceful shutdown
-	defer shutdownCancel()
+	ctx, cancel := context.WithTimeout(context.Background(), 30*time.Second)
+	defer cancel()
 
-	if err := server.Shutdown(shutdownCtx); err != nil {
+	if err := server.Shutdown(ctx); err != nil {
 		slog.Error("server shutdown error", "error", err)
 	}
 
-	done := make(chan struct{})
+	db.ClosePool(dbPool)
-	go func() {
-		wg.Wait()
-		close(done)
-	}()
-	select {
-	case <-done:
-		slog.Info("all workers stopped")
-	case <-time.After(15 * time.Second):
-		slog.Warn("timed out waiting for workers to stop")
-	}
-
 	slog.Info("server stopped")
 }
-
-func listActivePrinters(ctx context.Context, pool *pgxpool.Pool) []models.Printer {
-	rows, err := pool.Query(ctx, `
-		SELECT id, name, printer_type_id,
-		       manufacturer, model,
-		       moonraker_url, moonraker_api_key,
-		       mqtt_broker_host, mqtt_topic_prefix,
-		       mqtt_tls_enabled, is_active,
-		       created_at, updated_at
-		FROM printers WHERE is_active = TRUE ORDER BY name
-	`)
-	if err != nil {
-		slog.Warn("failed to query active printers", "error", err)
-		return nil
-	}
-	defer rows.Close()
-
-	var printers []models.Printer
-	for rows.Next() {
-		var p models.Printer
-		if err := rows.Scan(
-			&p.ID, &p.Name, &p.PrinterTypeID,
-			&p.Manufacturer, &p.Model,
-			&p.MoonrakerURL, &p.MoonrakerAPIKey,
-			&p.MQTTBrokerHost, &p.MQTTTopicPrefix,
-			&p.MQTTTLSEnabled, &p.IsActive,
-			&p.CreatedAt, &p.UpdatedAt,
-		); err != nil {
-			slog.Warn("failed to scan printer row", "error", err)
-			continue
-		}
-		printers = append(printers, p)
-	}
-	return printers
-}
-
-func startWorkerForPrinter(
-	ctx context.Context,
-	wg *sync.WaitGroup,
-	cfg *config.Config,
-	pool *pgxpool.Pool,
-	printer models.Printer,
-	pollInterval time.Duration,
-) {
-	if printer.MoonrakerURL != nil && *printer.MoonrakerURL != "" {
-		mc := clients.NewMoonrakerClient(*printer.MoonrakerURL)
-		poller := workers.NewMoonrakerPoller(workers.MoonrakerPollerConfig{
-			Client:       mc,
-			Pool:         pool,
-			PollInterval: pollInterval,
-			PrinterID:    printer.ID,
-			PrinterName:  printer.Name,
-		})
-		wg.Add(1)
-		go func() {
-			defer wg.Done()
-			poller.Run(ctx)
-		}()
-	}
-
-	if printer.MQTTBrokerHost != nil && *printer.MQTTBrokerHost != "" {
-		topicPrefix := cfg.MQTTTopicPrefix
-		if printer.MQTTTopicPrefix != nil && *printer.MQTTTopicPrefix != "" {
-			topicPrefix = *printer.MQTTTopicPrefix
-		}
-		sub := workers.NewMQTTSubscriber(workers.MQTTSubscriberConfig{
-			Pool:        pool,
-			PrinterID:   printer.ID,
-			PrinterName: printer.Name,
-		})
-		mqttClient := clients.NewMQTTClient(clients.MQTTConfig{
-			Broker:      *printer.MQTTBrokerHost,
-			ClientID:    cfg.MQTTClientID + "-p" + strconv.Itoa(printer.ID),
-			TopicPrefix: topicPrefix,
-			TLSCert:     cfg.MQTTTLSCert,
-			TLSKey:      cfg.MQTTTLSKey,
-			Handler:     sub.HandleBambuReport,
-		})
-		sub.Client = mqttClient
-		wg.Add(1)
-		go func() {
-			defer wg.Done()
-			if err := sub.Run(ctx); err != nil {
-				slog.Error("mqtt subscriber error", "printer_id", printer.ID, "error", err)
-			}
-		}()
-	}
-}

backend/go.mod

@@ -1,13 +1,9 @@
 module github.com/CubeCraft-Creations/Extrudex/backend
 
-go 1.24.0
+go 1.24
-
-toolchain go1.24.2
 
 require (
-	github.com/eclipse/paho.mqtt.golang v1.5.1
 	github.com/go-chi/chi/v5 v5.2.0
-	github.com/gorilla/websocket v1.5.3
 	github.com/jackc/pgx/v5 v5.7.4
 	github.com/kelseyhightower/envconfig v1.4.0
 )
@@ -16,8 +12,7 @@ require (
 	github.com/jackc/pgpassfile v1.0.0 // indirect
 	github.com/jackc/pgservicefile v0.0.0-20240606120523-5a60cdf6a761 // indirect
 	github.com/jackc/puddle/v2 v2.2.2 // indirect
-	golang.org/x/crypto v0.42.0 // indirect
+	golang.org/x/crypto v0.31.0 // indirect
-	golang.org/x/net v0.44.0 // indirect
+	golang.org/x/sync v0.10.0 // indirect
-	golang.org/x/sync v0.17.0 // indirect
+	golang.org/x/text v0.21.0 // indirect
-	golang.org/x/text v0.29.0 // indirect
 )

backend/go.sum

@@ -1,12 +1,8 @@
 github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
 github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
-github.com/eclipse/paho.mqtt.golang v1.5.1 h1:/VSOv3oDLlpqR2Epjn1Q7b2bSTplJIeV2ISgCl2W7nE=
-github.com/eclipse/paho.mqtt.golang v1.5.1/go.mod h1:1/yJCneuyOoCOzKSsOTUc0AJfpsItBGWvYpBLimhArU=
 github.com/go-chi/chi/v5 v5.2.0 h1:Aj1EtB0qR2Rdo2dG4O94RIU35w2lvQSj6BRA4+qwFL0=
 github.com/go-chi/chi/v5 v5.2.0/go.mod h1:DslCQbL2OYiznFReuXYUmQ2hGd1aDpCnlMNITLSKoi8=
-github.com/gorilla/websocket v1.5.3 h1:saDtZ6Pbx/0u+bgYQ3q96pZgCzfhKXGPqt7kZ72aNNg=
-github.com/gorilla/websocket v1.5.3/go.mod h1:YR8l580nyteQvAITg2hZ9XVh4b55+EU/adAjf1fMHhE=
 github.com/jackc/pgpassfile v1.0.0 h1:/6Hmqy13Ss2zCq62VdNG8tM1wchn8zjSGOBJ6icpsIM=
 github.com/jackc/pgpassfile v1.0.0/go.mod h1:CEx0iS5ambNFdcRtxPj5JhEz+xB6uRky5eyVu/W2HEg=
 github.com/jackc/pgservicefile v0.0.0-20240606120523-5a60cdf6a761 h1:iCEnooe7UlwOQYpKFhBabPMi4aNAfoODPEFNiAnClxo=
@@ -24,14 +20,12 @@ github.com/stretchr/testify v1.3.0/go.mod h1:M5WIy9Dh21IEIfnGCwXGc5bZfKNJtfHm1UV
 github.com/stretchr/testify v1.7.0/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg=
 github.com/stretchr/testify v1.8.1 h1:w7B6lhMri9wdJUVmEZPGGhZzrYTPvgJArz7wNPgYKsk=
 github.com/stretchr/testify v1.8.1/go.mod h1:w2LPCIKwWwSfY2zedu0+kehJoqGctiVI29o6fzry7u4=
-golang.org/x/crypto v0.42.0 h1:chiH31gIWm57EkTXpwnqf8qeuMUi0yekh6mT2AvFlqI=
+golang.org/x/crypto v0.31.0 h1:ihbySMvVjLAeSH1IbfcRTkD/iNscyz8rGzjF/E5hV6U=
-golang.org/x/crypto v0.42.0/go.mod h1:4+rDnOTJhQCx2q7/j6rAN5XDw8kPjeaXEUR2eL94ix8=
+golang.org/x/crypto v0.31.0/go.mod h1:kDsLvtWBEx7MV9tJOj9bnXsPbxwJQ6csT/x4KIN4Ssk=
-golang.org/x/net v0.44.0 h1:evd8IRDyfNBMBTTY5XRF1vaZlD+EmWx6x8PkhR04H/I=
+golang.org/x/sync v0.10.0 h1:3NQrjDixjgGwUOCaF8w2+VYHv0Ve/vGYSbdkTa98gmQ=
-golang.org/x/net v0.44.0/go.mod h1:ECOoLqd5U3Lhyeyo/QDCEVQ4sNgYsqvCZ722XogGieY=
+golang.org/x/sync v0.10.0/go.mod h1:Czt+wKu1gCyEFDUtn0jG5QVvpJ6rzVqr5aXyt9drQfk=
-golang.org/x/sync v0.17.0 h1:l60nONMj9l5drqw6jlhIELNv9I0A4OFgRsG9k2oT9Ug=
+golang.org/x/text v0.21.0 h1:zyQAAkrwaneQ066sspRyJaG9VNi/YJ1NfzcGB3hZ/qo=
-golang.org/x/sync v0.17.0/go.mod h1:9KTHXmSnoGruLpwFjVSX0lNNA75CykiMECbovNTZqGI=
+golang.org/x/text v0.21.0/go.mod h1:4IBbMaMmOPCJ8SecivzSH54+73PCFmPWxNTLm+vZkEQ=
-golang.org/x/text v0.29.0 h1:1neNs90w9YzJ9BocxfsQNHKuAT4pkghyXc4nhZ6sJvk=
-golang.org/x/text v0.29.0/go.mod h1:7MhJOA9CD2qZyOKYazxdYMF85OwPdEr9jTtBpO7ydH4=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
 gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
 gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=

backend/internal/clients/moonraker.go

@@ -1,171 +0,0 @@
-// Package clients provides client implementations for printer integrations:
-// Moonraker REST + WebSocket (Klipper-based printers) and MQTT (Bambu Lab).
-package clients
-
-import (
-	"context"
-	"encoding/json"
-	"fmt"
-	"io"
-	"net/http"
-	"strings"
-	"time"
-)
-
-// ── Moonraker response types ────────────────────────────────────────────────
-
-// moonrakerRPC is the generic JSON-RPC wrapper Moonraker uses for responses.
-type moonrakerRPC struct {
-	Result json.RawMessage `json:"result"`
-	Error  *moonrakerError `json:"error"`
-}
-
-type moonrakerError struct {
-	Code    int    `json:"code"`
-	Message string `json:"message"`
-}
-
-// ── Public DTOs ─────────────────────────────────────────────────────────────
-
-// MoonrakerPrinterInfo represents the /printer/info response.
-type MoonrakerPrinterInfo struct {
-	State        string `json:"state"`
-	StateMessage string `json:"state_message"`
-	KlippyReady  bool   `json:"klippy_ready"`
-}
-
-// MoonrakerPrintStats represents the print_stats object from
-// /printer/objects/query?print_stats.
-type MoonrakerPrintStats struct {
-	State          string  `json:"state"`
-	Filename       *string `json:"filename"`
-	FilamentUsedMm float64 `json:"filament_used"`
-	PrintDuration  float64 `json:"print_duration"`
-	Message        *string `json:"message"`
-}
-
-// MoonrakerPrintJob represents a single entry in /server/history/items.
-type MoonrakerPrintJob struct {
-	JobID              string                 `json:"job_id"`
-	Filename           string                 `json:"filename"`
-	Status             string                 `json:"status"`
-	FilamentUsedMm     float64                `json:"filament_used"`
-	PrintDuration      float64                `json:"print_duration"`
-	TotalDuration      float64                `json:"total_duration"`
-	StartTime          *float64               `json:"start_time"`
-	EndTime            *float64               `json:"end_time"`
-	Metadata           map[string]interface{} `json:"metadata"`
-}
-
-// MoonrakerHistoryResponse wraps the /server/history/items response.
-type MoonrakerHistoryResponse struct {
-	Items      []MoonrakerPrintJob `json:"items"`
-	TotalCount int                 `json:"count"`
-}
-
-// ── Client ──────────────────────────────────────────────────────────────────
-
-// MoonrakerClient is an HTTP client for the Moonraker REST API on
-// Klipper-based printers (e.g., Elegoo Centauri Carbon).
-type MoonrakerClient struct {
-	baseURL    string
-	httpClient *http.Client
-}
-
-// NewMoonrakerClient creates a MoonrakerClient that targets the given
-// base URL (e.g., "http://192.168.1.50:7125"). The internal HTTP client
-// uses a 15-second timeout.
-func NewMoonrakerClient(baseURL string) *MoonrakerClient {
-	baseURL = strings.TrimRight(baseURL, "/")
-	return &MoonrakerClient{
-		baseURL: baseURL,
-		httpClient: &http.Client{
-			Timeout: 15 * time.Second,
-		},
-	}
-}
-
-// GetPrinterInfo calls GET /printer/info and returns the Klipper state.
-// Returns nil when the printer is unreachable or the response cannot be parsed.
-func (c *MoonrakerClient) GetPrinterInfo(ctx context.Context) (*MoonrakerPrinterInfo, error) {
-	var info MoonrakerPrinterInfo
-	if err := c.getJSON(ctx, "/printer/info", &info); err != nil {
-		return nil, err
-	}
-	return &info, nil
-}
-
-// GetPrintStats calls GET /printer/objects/query?print_stats and returns
-// real-time print statistics including filament consumption.
-// Returns nil when no print is active or the printer is unreachable.
-func (c *MoonrakerClient) GetPrintStats(ctx context.Context) (*MoonrakerPrintStats, error) {
-	var stats MoonrakerPrintStats
-	// Moonraker wraps the object in status.print_stats
-	var wrapper struct {
-		Status struct {
-			PrintStats MoonrakerPrintStats `json:"print_stats"`
-		} `json:"status"`
-	}
-	if err := c.getJSON(ctx, "/printer/objects/query?print_stats", &wrapper); err != nil {
-		return nil, err
-	}
-	stats = wrapper.Status.PrintStats
-	return &stats, nil
-}
-
-// GetPrintHistory calls GET /server/history/items and returns recent print
-// jobs. limit controls the maximum number of items (clamped 1-100).
-func (c *MoonrakerClient) GetPrintHistory(ctx context.Context, limit int) (*MoonrakerHistoryResponse, error) {
-	if limit < 1 {
-		limit = 1
-	}
-	if limit > 100 {
-		limit = 100
-	}
-	var history MoonrakerHistoryResponse
-	if err := c.getJSON(ctx, fmt.Sprintf("/server/history/items?limit=%d", limit), &history); err != nil {
-		return nil, err
-	}
-	return &history, nil
-}
-
-// ── Internal helpers ────────────────────────────────────────────────────────
-
-func (c *MoonrakerClient) getJSON(ctx context.Context, path string, target interface{}) error {
-	url := c.baseURL + path
-
-	req, err := http.NewRequestWithContext(ctx, http.MethodGet, url, nil)
-	if err != nil {
-		return fmt.Errorf("moonraker: failed to build request: %w", err)
-	}
-	req.Header.Set("Accept", "application/json")
-
-	resp, err := c.httpClient.Do(req)
-	if err != nil {
-		return fmt.Errorf("moonraker: request failed (%s): %w", url, err)
-	}
-	defer resp.Body.Close()
-
-	body, err := io.ReadAll(resp.Body)
-	if err != nil {
-		return fmt.Errorf("moonraker: failed to read body: %w", err)
-	}
-
-	if resp.StatusCode < 200 || resp.StatusCode >= 300 {
-		return fmt.Errorf("moonraker: %s returned HTTP %d: %s", url, resp.StatusCode, string(body))
-	}
-
-	// Moonraker wraps responses in {"result": ...}
-	var rpc moonrakerRPC
-	if err := json.Unmarshal(body, &rpc); err != nil {
-		return fmt.Errorf("moonraker: failed to parse response: %w", err)
-	}
-	if rpc.Error != nil && rpc.Error.Message != "" {
-		return fmt.Errorf("moonraker: api error: %s", rpc.Error.Message)
-	}
-
-	if err := json.Unmarshal(rpc.Result, target); err != nil {
-		return fmt.Errorf("moonraker: failed to unmarshal result: %w (raw: %s)", err, string(rpc.Result))
-	}
-	return nil
-}

backend/internal/clients/moonraker_ws.go

@@ -1,229 +0,0 @@
-package clients
-
-import (
-	"context"
-	"encoding/json"
-	"fmt"
-	"log/slog"
-	"net/http"
-	"strings"
-	"sync"
-	"time"
-
-	"github.com/gorilla/websocket"
-)
-
-// ── WebSocket message types ─────────────────────────────────────────────────
-
-// moonrakerWSMessage is a single JSON-RPC frame from the Moonraker WebSocket.
-type moonrakerWSMessage struct {
-	JSONRPC string          `json:"jsonrpc"`
-	Method  string          `json:"method"`
-	Params  json.RawMessage `json:"params"`
-	ID      *int            `json:"id"`
-}
-
-// MoonrakerPrintEvent is the payload delivered by the "notify_status_update"
-// subscription when print_stats or display_status change.
-type MoonrakerPrintEvent struct {
-	PrintStats    *MoonrakerPrintStats    `json:"print_stats"`
-	DisplayStatus *MoonrakerDisplayStatus `json:"display_status"`
-}
-
-// MoonrakerDisplayStatus carries progress and the LCD message.
-type MoonrakerDisplayStatus struct {
-	Progress float64 `json:"progress"`
-	Message  string  `json:"message"`
-}
-
-// MoonrakerStatusHandler is called for every status update received from the
-// Moonraker WebSocket. It receives the parsed event and the raw JSON.
-type MoonrakerStatusHandler func(event MoonrakerPrintEvent) error
-
-// ── WebSocket client ────────────────────────────────────────────────────────
-
-// MoonrakerWSClient maintains a persistent WebSocket connection to the
-// Moonraker server and delivers parsed status updates to a handler.
-type MoonrakerWSClient struct {
-	wsURL   string
-	handler MoonrakerStatusHandler
-	dialer  *websocket.Dialer
-
-	mu     sync.Mutex
-	conn   *websocket.Conn
-	done   chan struct{}
-	once   sync.Once
-}
-
-// NewMoonrakerWSClient creates a WebSocket client for the given Moonraker base
-// URL. The handler is invoked on every status update.
-func NewMoonrakerWSClient(baseURL string, handler MoonrakerStatusHandler) *MoonrakerWSClient {
-	baseURL = strings.TrimRight(baseURL, "/")
-	wsURL := strings.Replace(baseURL, "http://", "ws://", 1)
-	wsURL = strings.Replace(wsURL, "https://", "wss://", 1)
-	wsURL += "/websocket"
-
-	return &MoonrakerWSClient{
-		wsURL:   wsURL,
-		handler: handler,
-		dialer: &websocket.Dialer{
-			Proxy:            http.ProxyFromEnvironment,
-			HandshakeTimeout: 10 * time.Second,
-		},
-		done: make(chan struct{}),
-	}
-}
-
-// Connect establishes the WebSocket, subscribes to status updates, and
-// starts the read loop in a background goroutine. It retries on failure
-// with exponential backoff up to a 60-second cap.
-func (c *MoonrakerWSClient) Connect(ctx context.Context) {
-	go c.run(ctx)
-}
-
-// Shutdown gracefully closes the WebSocket and stops the read loop.
-func (c *MoonrakerWSClient) Shutdown() {
-	c.once.Do(func() {
-		close(c.done)
-	})
-	c.mu.Lock()
-	defer c.mu.Unlock()
-	if c.conn != nil {
-		c.conn.Close()
-		c.conn = nil
-	}
-}
-
-// run is the main connection loop with reconnect backoff.
-func (c *MoonrakerWSClient) run(ctx context.Context) {
-	backoff := 1 * time.Second
-	const maxBackoff = 60 * time.Second
-
-	for {
-		select {
-		case <-ctx.Done():
-			slog.Info("moonraker ws: context cancelled, stopping")
-			return
-		case <-c.done:
-			slog.Info("moonraker ws: shutdown requested")
-			return
-		default:
-		}
-
-		if err := c.connectAndRead(ctx); err != nil {
-			slog.Error("moonraker ws: connection error, retrying", "error", err, "backoff", backoff)
-		}
-
-		// Exponential backoff.
-		select {
-		case <-ctx.Done():
-			return
-		case <-c.done:
-			return
-		case <-time.After(backoff):
-		}
-		backoff *= 2
-		if backoff > maxBackoff {
-			backoff = maxBackoff
-		}
-	}
-}
-
-func (c *MoonrakerWSClient) connectAndRead(ctx context.Context) error {
-	slog.Info("moonraker ws: connecting", "url", c.wsURL)
-
-	conn, _, err := c.dialer.DialContext(ctx, c.wsURL, nil)
-	if err != nil {
-		return fmt.Errorf("dial failed: %w", err)
-	}
-
-	c.mu.Lock()
-	if c.conn != nil {
-		c.conn.Close()
-	}
-	c.conn = conn
-	c.mu.Unlock()
-
-	defer func() {
-		c.mu.Lock()
-		if c.conn == conn {
-			c.conn = nil
-		}
-		c.mu.Unlock()
-		conn.Close()
-	}()
-
-	// Subscribe to status updates.
-	subReq := map[string]interface{}{
-		"jsonrpc": "2.0",
-		"method":  "printer.objects.subscribe",
-		"params": map[string]interface{}{
-			"objects": map[string]interface{}{
-				"print_stats":    nil,
-				"display_status": nil,
-			},
-		},
-		"id": 1,
-	}
-	if err := conn.WriteJSON(subReq); err != nil {
-		return fmt.Errorf("subscribe failed: %w", err)
-	}
-
-	slog.Info("moonraker ws: subscribed to status updates")
-
-	// Set read deadline to detect stale connections.
-	// 120s is long enough to avoid false positives.
-	pingPeriod := 60 * time.Second
-
-	for {
-		// Set read deadline.
-		if err := conn.SetReadDeadline(time.Now().Add(150 * time.Second)); err != nil {
-			return fmt.Errorf("set read deadline: %w", err)
-		}
-
-		_, raw, err := conn.ReadMessage()
-		if err != nil {
-			return fmt.Errorf("read message: %w", err)
-		}
-
-		// Send periodic pings to keep the connection alive.
-		go func() {
-			time.Sleep(pingPeriod)
-			c.mu.Lock()
-			if c.conn == conn {
-				c.conn.WriteControl(websocket.PingMessage, []byte{}, time.Now().Add(10*time.Second))
-			}
-			c.mu.Unlock()
-		}()
-
-		var msg moonrakerWSMessage
-		if err := json.Unmarshal(raw, &msg); err != nil {
-			slog.Warn("moonraker ws: failed to parse message", "error", err)
-			continue
-		}
-
-		// Only process notify_status_update messages.
-		if msg.Method != "notify_status_update" {
-			continue
-		}
-
-		var statusWrapper []MoonrakerPrintEvent
-		if err := json.Unmarshal(msg.Params, &statusWrapper); err != nil {
-			// Params might be an object, not an array.
-			var singleEvent MoonrakerPrintEvent
-			if err2 := json.Unmarshal(msg.Params, &singleEvent); err2 != nil {
-				slog.Warn("moonraker ws: failed to unmarshal status params", "error", err2)
-				continue
-			}
-			statusWrapper = []MoonrakerPrintEvent{singleEvent}
-		}
-
-		for _, ev := range statusWrapper {
-			if c.handler != nil {
-				if err := c.handler(ev); err != nil {
-					slog.Error("moonraker ws: handler error", "error", err)
-				}
-			}
-		}
-	}
-}

backend/internal/clients/mqtt.go

@@ -1,183 +0,0 @@
-package clients
-
-import (
-	"crypto/tls"
-	"encoding/json"
-	"fmt"
-	"log/slog"
-	"sync"
-	"time"
-
-	mqtt "github.com/eclipse/paho.mqtt.golang"
-)
-
-// ── Bambu Lab telemetry types ───────────────────────────────────────────────
-
-// BambuPrintReport is the JSON payload published by Bambu Lab printers
-// on the MQTT report topic. The structure varies by printer model;
-// we extract the common fields needed for filament tracking.
-type BambuPrintReport struct {
-	// Print holds the active print job data.
-	Print BambuPrintData `json:"print"`
-
-	// VtTray contains AMS tray info; the extruded length is per-tray.
-	VtTray *BambuVtTray `json:"vt_tray,omitempty"`
-}
-
-// BambuPrintData carries the active print state from a Bambu report.
-type BambuPrintData struct {
-	// GcodeFile is the filename being printed.
-	GcodeFile string `json:"gcode_file"`
-	// GcodeState describes the current print state:
-	// "IDLE", "RUNNING", "PAUSE", "FINISH", "FAILED".
-	GcodeState string `json:"gcode_state"`
-	// McPercent is the progress as a percentage (0-100).
-	McPercent int `json:"mc_percent"`
-	// McRemainingTime is the estimated remaining time in minutes.
-	McRemainingTime int `json:"mc_remaining_time"`
-}
-
-// BambuVtTray holds AMS tray telemetry from Bambu printers.
-type BambuVtTray struct {
-	ID         string `json:"id"`
-	TagUID     string `json:"tag_uid"`
-	TrayIDName string `json:"tray_id_name"`
-	// TrayInfoIdx is the hex color code for the tray's filament.
-	TrayInfoIdx string `json:"tray_info_idx"`
-	// TrayColor is a hex color string like "FF0000FF".
-	TrayColor string `json:"tray_color"`
-	// Remain is the percentage of filament remaining on this tray (0-100).
-	Remain int `json:"remain"`
-	// K is a temperature coefficient.
-	K float64 `json:"k"`
-	// N is a second temperature coefficient.
-	N float64 `json:"n"`
-}
-
-// BambuReportHandler is called for each parsed Bambu telemetry message.
-type BambuReportHandler func(report BambuPrintReport) error
-
-// ── MQTT client ─────────────────────────────────────────────────────────────
-
-// MQTTClient wraps the Eclipse Paho MQTT client for Bambu Lab printer
-// telemetry with optional TLS support.
-type MQTTClient struct {
-	broker      string
-	clientID    string
-	topicPrefix string
-	tlsCert     string
-	tlsKey      string
-	handler     BambuReportHandler
-
-	mu     sync.Mutex
-	client mqtt.Client
-}
-
-// MQTTConfig holds the configuration for creating an MQTTClient.
-type MQTTConfig struct {
-	Broker      string // e.g., "ssl://192.168.1.50:8883"
-	ClientID    string // unique MQTT client id, defaults to "extrudex"
-	TopicPrefix string // topic prefix, defaults to "device/+/report"
-	TLSCert     string // path to TLS client certificate (optional)
-	TLSKey      string // path to TLS client key (optional)
-	Handler     BambuReportHandler
-}
-
-// NewMQTTClient creates a new MQTTClient. The connection is not established
-// until Connect is called.
-func NewMQTTClient(cfg MQTTConfig) *MQTTClient {
-	if cfg.ClientID == "" {
-		cfg.ClientID = "extrudex"
-	}
-	if cfg.TopicPrefix == "" {
-		cfg.TopicPrefix = "device/+/report"
-	}
-	return &MQTTClient{
-		broker:      cfg.Broker,
-		clientID:    cfg.ClientID,
-		topicPrefix: cfg.TopicPrefix,
-		tlsCert:     cfg.TLSCert,
-		tlsKey:      cfg.TLSKey,
-		handler:     cfg.Handler,
-	}
-}
-
-// Connect establishes the MQTT connection and subscribes to the configured
-// topic prefix. Returns an error if the initial connection fails.
-func (c *MQTTClient) Connect() error {
-	opts := mqtt.NewClientOptions().
-		AddBroker(c.broker).
-		SetClientID(c.clientID).
-		SetAutoReconnect(true).
-		SetMaxReconnectInterval(30 * time.Second).
-		SetKeepAlive(30 * time.Second).
-		SetPingTimeout(10 * time.Second).
-		SetConnectTimeout(15 * time.Second).
-		SetOnConnectHandler(func(client mqtt.Client) {
-			slog.Info("mqtt: connected", "broker", c.broker)
-			// Subscribe on every reconnect.
-			token := client.Subscribe(c.topicPrefix, 0, c.messageHandler)
-			token.Wait()
-			if err := token.Error(); err != nil {
-				slog.Error("mqtt: subscribe failed on reconnect", "topic", c.topicPrefix, "error", err)
-			} else {
-				slog.Info("mqtt: subscribed", "topic", c.topicPrefix)
-			}
-		}).
-		SetConnectionLostHandler(func(client mqtt.Client, err error) {
-			slog.Warn("mqtt: connection lost", "error", err)
-		})
-
-	// Configure TLS if cert and key are provided.
-	if c.tlsCert != "" && c.tlsKey != "" {
-		cert, err := tls.LoadX509KeyPair(c.tlsCert, c.tlsKey)
-		if err != nil {
-			return fmt.Errorf("mqtt: failed to load TLS cert/key: %w", err)
-		}
-		opts.SetTLSConfig(&tls.Config{
-			Certificates: []tls.Certificate{cert},
-			MinVersion:   tls.VersionTLS12,
-		})
-		slog.Info("mqtt: TLS configured", "cert", c.tlsCert)
-	}
-
-	c.client = mqtt.NewClient(opts)
-	token := c.client.Connect()
-	if !token.WaitTimeout(15 * time.Second) {
-		return fmt.Errorf("mqtt: connect timed out to %s", c.broker)
-	}
-	if err := token.Error(); err != nil {
-		return fmt.Errorf("mqtt: connect failed: %w", err)
-	}
-
-	slog.Info("mqtt: initial connection established", "broker", c.broker)
-	return nil
-}
-
-// Disconnect gracefully closes the MQTT connection.
-func (c *MQTTClient) Disconnect() {
-	c.mu.Lock()
-	defer c.mu.Unlock()
-	if c.client != nil && c.client.IsConnected() {
-		c.client.Disconnect(2500) // wait up to 2.5s
-		slog.Info("mqtt: disconnected")
-	}
-}
-
-// messageHandler is the MQTT callback invoked for every message received on
-// the subscribed topic.
-func (c *MQTTClient) messageHandler(_ mqtt.Client, msg mqtt.Message) {
-	if c.handler == nil {
-		return
-	}
-
-	var report BambuPrintReport
-	if err := json.Unmarshal(msg.Payload(), &report); err != nil {
-		slog.Warn("mqtt: failed to parse bambu report", "topic", msg.Topic(), "error", err)
-		return
-	}
-
-	if err := c.handler(report); err != nil {
-		slog.Error("mqtt: handler error", "topic", msg.Topic(), "error", err)
-	}
-}

backend/internal/config/config.go

@@ -12,17 +12,6 @@ type Config struct {
 	Port        string `envconfig:"port" default:"8080"`
 	CorsOrigin  string `envconfig:"cors_origin" default:"*"`
 	LogLevel    string `envconfig:"log_level" default:"info"`
-
-	// Moonraker integration.
-	MoonrakerURL          string `envconfig:"moonraker_url" default:"http://localhost:7125"`
-	MoonrakerPollInterval string `envconfig:"moonraker_poll_interval" default:"10s"`
-
-	// MQTT (Bambu Lab) integration.
-	MQTTBroker      string `envconfig:"mqtt_broker" default:"localhost:1883"`
-	MQTTTopicPrefix string `envconfig:"mqtt_topic_prefix" default:"device/+/report"`
-	MQTTClientID    string `envconfig:"mqtt_client_id" default:"extrudex"`
-	MQTTTLSCert     string `envconfig:"mqtt_tls_cert" default:""`
-	MQTTTLSKey      string `envconfig:"mqtt_tls_key" default:""`
 }
 
 // Load reads configuration from environment variables and returns a populated Config.

backend/internal/workers/moonraker_poller.go

@@ -1,255 +0,0 @@
-package workers
-
-import (
-	"context"
-	"fmt"
-	"log/slog"
-	"sync"
-	"time"
-
-	"github.com/CubeCraft-Creations/Extrudex/backend/internal/clients"
-	"github.com/jackc/pgx/v5/pgxpool"
-)
-
-// ── deduplication ───────────────────────────────────────────────────────────
-
-// jobTrack holds the last-seen filename and filament_used for dedup.
-type jobTrack struct {
-	filename     string
-	filamentUsed float64
-}
-
-// MoonrakerPoller periodically queries the Moonraker REST API for print stats
-// and logs filament usage to PostgreSQL. It deduplicates by tracking the
-// last-known filament_used value for the active job on this printer.
-type MoonrakerPoller struct {
-	client       *clients.MoonrakerClient
-	pool         *pgxpool.Pool
-	pollInterval time.Duration
-	printerID    int
-	printerName  string
-
-	mu    sync.Mutex
-	track jobTrack
-}
-
-// MoonrakerPollerConfig holds configuration for the Moonraker polling worker.
-type MoonrakerPollerConfig struct {
-	Client       *clients.MoonrakerClient
-	Pool         *pgxpool.Pool
-	PollInterval time.Duration
-	PrinterID    int
-	PrinterName  string
-}
-
-// NewMoonrakerPoller creates a new MoonrakerPoller worker.
-func NewMoonrakerPoller(cfg MoonrakerPollerConfig) *MoonrakerPoller {
-	if cfg.PollInterval <= 0 {
-		cfg.PollInterval = 10 * time.Second
-	}
-	return &MoonrakerPoller{
-		client:       cfg.Client,
-		pool:         cfg.Pool,
-		pollInterval: cfg.PollInterval,
-		printerID:    cfg.PrinterID,
-		printerName:  cfg.PrinterName,
-	}
-}
-
-// Run starts the polling loop. It blocks until ctx is cancelled.
-func (w *MoonrakerPoller) Run(ctx context.Context) {
-	slog.Info("moonraker poller: starting",
-		"printer_id", w.printerID,
-		"printer_name", w.printerName,
-		"interval", w.pollInterval,
-	)
-
-	ticker := time.NewTicker(w.pollInterval)
-	defer ticker.Stop()
-
-	w.poll(ctx)
-
-	for {
-		select {
-		case <-ctx.Done():
-			slog.Info("moonraker poller: stopping", "printer_id", w.printerID)
-			return
-		case <-ticker.C:
-			w.poll(ctx)
-		}
-	}
-}
-
-func (w *MoonrakerPoller) poll(ctx context.Context) {
-	stats, err := w.client.GetPrintStats(ctx)
-	if err != nil {
-		slog.Warn("moonraker poller: failed to get print stats",
-			"printer_id", w.printerID, "error", err)
-		return
-	}
-
-	if stats.State == "" {
-		return
-	}
-
-	jobName := "unknown"
-	if stats.Filename != nil {
-		jobName = *stats.Filename
-	}
-
-	// Compute delta under lock; release before I/O.
-	w.mu.Lock()
-	prevName := w.track.filename
-	prevUsed := w.track.filamentUsed
-
-	if jobName != prevName {
-		w.track.filename = jobName
-		w.track.filamentUsed = 0
-		prevUsed = 0
-	}
-
-	deltaMM := stats.FilamentUsedMm - prevUsed
-	totalMM := stats.FilamentUsedMm
-	if deltaMM <= 0 && jobName == prevName {
-		w.mu.Unlock()
-		return
-	}
-	w.mu.Unlock()
-
-	slog.Info("moonraker poller: filament usage",
-		"printer_id", w.printerID,
-		"job", jobName,
-		"delta_mm", deltaMM,
-		"total_mm", totalMM,
-		"state", stats.State,
-	)
-
-	jobID, err := w.ensurePrintJob(ctx, jobName, stats.State)
-	if err != nil {
-		slog.Error("moonraker poller: failed to ensure print job",
-			"printer_id", w.printerID, "error", err)
-		return
-	}
-
-	spoolID, density := lookupActiveSpool(ctx, w.pool, w.printerID)
-
-	if err := insertUsageLog(ctx, w.pool, jobID, spoolID, deltaMM, density); err != nil {
-		slog.Error("moonraker poller: failed to log usage",
-			"printer_id", w.printerID, "error", err)
-		return
-	}
-
-	w.mu.Lock()
-	w.track.filamentUsed = totalMM
-	w.mu.Unlock()
-}
-
-func (w *MoonrakerPoller) ensurePrintJob(ctx context.Context, jobName, state string) (int, error) {
-	var jobID int
-	err := w.pool.QueryRow(ctx, `
-		SELECT pj.id FROM print_jobs pj
-		JOIN job_statuses js ON pj.job_status_id = js.id
-		WHERE pj.printer_id = $1
-		  AND pj.job_name = $2
-		  AND pj.deleted_at IS NULL
-		  AND js.name IN ('printing', 'pending')
-		ORDER BY pj.created_at DESC
-		LIMIT 1
-	`, w.printerID, jobName).Scan(&jobID)
-
-	if err == nil {
-		_, _ = w.pool.Exec(ctx, `
-			UPDATE print_jobs SET
-				job_status_id = (SELECT id FROM job_statuses WHERE name = 'printing'),
-				started_at = COALESCE(started_at, NOW()),
-				updated_at = NOW()
-			WHERE id = $1
-			  AND job_status_id = (SELECT id FROM job_statuses WHERE name = 'pending')
-		`, jobID)
-		return jobID, nil
-	}
-
-	var statusID int
-	err = w.pool.QueryRow(ctx, `SELECT id FROM job_statuses WHERE name = 'printing'`).Scan(&statusID)
-	if err != nil {
-		return 0, fmt.Errorf("moonraker poller: missing 'printing' job status: %w", err)
-	}
-
-	err = w.pool.QueryRow(ctx, `
-		INSERT INTO print_jobs (printer_id, job_name, file_name, job_status_id, started_at)
-		VALUES ($1, $2, $3, $4, NOW())
-		RETURNING id
-	`, w.printerID, jobName, jobName, statusID).Scan(&jobID)
-	if err != nil {
-		return 0, fmt.Errorf("moonraker poller: failed to create print job: %w", err)
-	}
-
-	slog.Info("moonraker poller: created print job", "job_id", jobID, "job_name", jobName)
-	return jobID, nil
-}
-
-// ── Package-level helpers (shared by both workers) ──────────────────────────
-
-// lookupActiveSpool finds the most recently used spool for a given printer.
-func lookupActiveSpool(ctx context.Context, pool *pgxpool.Pool, printerID int) (int, float64) {
-	type result struct {
-		id      int
-		density float64
-	}
-	var res result
-
-	err := pool.QueryRow(ctx, `
-		SELECT fs.id, COALESCE(mb.density_g_cm3, 1.24)
-		FROM filament_spools fs
-		JOIN material_bases mb ON fs.material_base_id = mb.id
-		JOIN print_jobs pj ON pj.filament_spool_id = fs.id
-		WHERE pj.printer_id = $1 AND fs.deleted_at IS NULL
-		ORDER BY pj.created_at DESC LIMIT 1
-	`, printerID).Scan(&res.id, &res.density)
-	if err == nil {
-		return res.id, res.density
-	}
-
-	err = pool.QueryRow(ctx, `
-		SELECT fs.id, COALESCE(mb.density_g_cm3, 1.24)
-		FROM filament_spools fs
-		JOIN material_bases mb ON fs.material_base_id = mb.id
-		WHERE fs.deleted_at IS NULL
-		ORDER BY fs.created_at DESC LIMIT 1
-	`).Scan(&res.id, &res.density)
-	if err == nil {
-		return res.id, res.density
-	}
-
-	return 1, 1.24
-}
-
-// insertUsageLog inserts a usage_log entry and decrements the spool's remaining grams.
-func insertUsageLog(ctx context.Context, pool *pgxpool.Pool, jobID, spoolID int, deltaMM, densityGCm3 float64) error {
-	const crossSectionCm2 = 0.02405 // π * (0.0875cm)² for 1.75mm filament
-	gramsUsed := crossSectionCm2 * (deltaMM / 10.0) * densityGCm3
-
-	if gramsUsed <= 0 || deltaMM <= 0 {
-		return nil
-	}
-
-	if _, err := pool.Exec(ctx, `
-		INSERT INTO usage_logs (print_job_id, filament_spool_id, mm_extruded, grams_used, logged_at)
-		VALUES ($1, $2, $3, $4, NOW())
-	`, jobID, spoolID, deltaMM, gramsUsed); err != nil {
-		return fmt.Errorf("usage_log insert failed: %w", err)
-	}
-
-	_, _ = pool.Exec(ctx, `
-		UPDATE filament_spools
-		SET remaining_grams = GREATEST(remaining_grams - $2::int, 0),
-		    updated_at = NOW()
-		WHERE id = $1
-	`, spoolID, int(gramsUsed))
-
-	slog.Debug("moonraker poller: logged usage",
-		"job_id", jobID, "spool_id", spoolID,
-		"mm_extruded", deltaMM, "grams_used", gramsUsed,
-	)
-	return nil
-}

backend/internal/workers/mqtt_subscriber.go

@@ -1,170 +0,0 @@
-package workers
-
-import (
-	"context"
-	"fmt"
-	"log/slog"
-	"sync"
-	"time"
-
-	"github.com/CubeCraft-Creations/Extrudex/backend/internal/clients"
-	"github.com/jackc/pgx/v5/pgxpool"
-)
-
-// bambuJobState tracks the active print job detected via MQTT.
-type bambuJobState struct {
-	gcodeFile  string
-	gcodeState string
-	percent    int
-}
-
-// MQTTSubscriber listens to Bambu Lab MQTT telemetry topics and logs
-// filament usage events to PostgreSQL.
-type MQTTSubscriber struct {
-	Client *clients.MQTTClient
-	pool   *pgxpool.Pool
-
-	printerID   int
-	printerName string
-
-	mu    sync.Mutex
-	state bambuJobState
-}
-
-// MQTTSubscriberConfig holds configuration for the MQTT subscriber worker.
-type MQTTSubscriberConfig struct {
-	Pool        *pgxpool.Pool
-	PrinterID   int
-	PrinterName string
-}
-
-// NewMQTTSubscriber creates a new MQTTSubscriber worker. Set Client after
-// construction to wire the handler.
-func NewMQTTSubscriber(cfg MQTTSubscriberConfig) *MQTTSubscriber {
-	return &MQTTSubscriber{
-		pool:        cfg.Pool,
-		printerID:   cfg.PrinterID,
-		printerName: cfg.PrinterName,
-	}
-}
-
-// Run connects to MQTT and blocks until ctx is cancelled.
-func (w *MQTTSubscriber) Run(ctx context.Context) error {
-	slog.Info("mqtt subscriber: starting",
-		"printer_id", w.printerID,
-		"printer_name", w.printerName,
-	)
-
-	if w.Client == nil {
-		return fmt.Errorf("mqtt subscriber: Client is nil")
-	}
-
-	if err := w.Client.Connect(); err != nil {
-		return fmt.Errorf("mqtt subscriber: connect failed: %w", err)
-	}
-	defer w.Client.Disconnect()
-
-	slog.Info("mqtt subscriber: connected", "printer_id", w.printerID)
-
-	<-ctx.Done()
-	slog.Info("mqtt subscriber: shutting down", "printer_id", w.printerID)
-	return nil
-}
-
-// HandleBambuReport is the MQTT callback for Bambu telemetry messages.
-func (w *MQTTSubscriber) HandleBambuReport(report clients.BambuPrintReport) error {
-	w.mu.Lock()
-	prev := w.state
-	current := bambuJobState{
-		gcodeFile:  report.Print.GcodeFile,
-		gcodeState: report.Print.GcodeState,
-		percent:    report.Print.McPercent,
-	}
-	w.state = current
-	w.mu.Unlock()
-
-	if prev.gcodeState == current.gcodeState && prev.gcodeFile == current.gcodeFile {
-		return nil
-	}
-
-	slog.Info("mqtt subscriber: state change",
-		"printer_id", w.printerID,
-		"file", current.gcodeFile,
-		"state", current.gcodeState,
-		"percent", current.percent,
-	)
-
-	ctx, cancel := context.WithTimeout(context.Background(), 15*time.Second)
-	defer cancel()
-
-	switch current.gcodeState {
-	case "RUNNING":
-		return w.handleState(ctx, current, "printing")
-	case "FINISH":
-		return w.handleState(ctx, current, "completed")
-	case "FAILED":
-		return w.handleState(ctx, current, "failed")
-	}
-	return nil
-}
-
-func (w *MQTTSubscriber) handleState(ctx context.Context, s bambuJobState, status string) error {
-	jobID, err := w.ensurePrintJob(ctx, s.gcodeFile, status)
-	if err != nil {
-		return err
-	}
-
-	if status == "completed" || status == "failed" {
-		_, _ = w.pool.Exec(ctx, `
-			UPDATE print_jobs SET
-				job_status_id = (SELECT id FROM job_statuses WHERE name = $2),
-				completed_at = CASE WHEN $2 = 'completed' THEN NOW() ELSE completed_at END,
-				updated_at = NOW()
-			WHERE id = $1
-		`, jobID, status)
-	} else {
-		_, _ = w.pool.Exec(ctx, `
-			UPDATE print_jobs SET
-				job_status_id = (SELECT id FROM job_statuses WHERE name = $2),
-				started_at = COALESCE(started_at, NOW()),
-				updated_at = NOW()
-			WHERE id = $1
-		`, jobID, status)
-	}
-
-	slog.Info("mqtt subscriber: job updated",
-		"printer_id", w.printerID, "job_id", jobID, "status", status)
-	return nil
-}
-
-func (w *MQTTSubscriber) ensurePrintJob(ctx context.Context, filename, status string) (int, error) {
-	var jobID int
-	err := w.pool.QueryRow(ctx, `
-		SELECT id FROM print_jobs
-		WHERE printer_id = $1 AND file_name = $2 AND deleted_at IS NULL
-		ORDER BY created_at DESC LIMIT 1
-	`, w.printerID, filename).Scan(&jobID)
-
-	if err == nil {
-		return jobID, nil
-	}
-
-	var statusID int
-	err = w.pool.QueryRow(ctx, `SELECT id FROM job_statuses WHERE name = $1`, status).Scan(&statusID)
-	if err != nil {
-		return 0, fmt.Errorf("mqtt subscriber: unknown status '%s': %w", status, err)
-	}
-
-	err = w.pool.QueryRow(ctx, `
-		INSERT INTO print_jobs (printer_id, job_name, file_name, job_status_id, started_at)
-		VALUES ($1, $2, $2, $3, NOW())
-		RETURNING id
-	`, w.printerID, filename, statusID).Scan(&jobID)
-	if err != nil {
-		return 0, fmt.Errorf("mqtt subscriber: create print_job failed: %w", err)
-	}
-
-	slog.Info("mqtt subscriber: created print job",
-		"job_id", jobID, "file", filename, "status", status)
-	return jobID, nil
-}

frontend/src/App.tsx

@@ -1,26 +1,34 @@
 import { QueryClient, QueryClientProvider } from '@tanstack/react-query'
 import { BrowserRouter, Routes, Route } from 'react-router-dom'
-import Dashboard from './pages/Dashboard'
 import InventoryPage from './pages/InventoryPage'
+import ToastContainer from './components/ToastContainer'
+import { useSSE } from './hooks/useSSE'
 
 const queryClient = new QueryClient()
 
+function SSEProvider({ children }: { children: React.ReactNode }) {
+  useSSE()
+  return <>{children}</>
+}
+
 export default function App() {
   return (
     <QueryClientProvider client={queryClient}>
       <BrowserRouter>
-        <div className="min-h-screen bg-slate-900 text-slate-50">
+        <SSEProvider>
-          <header className="bg-slate-800 border-b border-slate-700 px-4 py-3 flex items-center gap-3 sticky top-0 z-20">
+          <div className="min-h-screen bg-slate-900 text-slate-50">
-            <div className="w-8 h-8 rounded bg-emerald-500 flex items-center justify-center text-slate-900 font-bold text-lg">E</div>
+            <header className="bg-slate-800 border-b border-slate-700 px-4 py-3 flex items-center gap-3 sticky top-0 z-20">
-            <h1 className="text-lg font-semibold">Extrudex</h1>
+              <div className="w-8 h-8 rounded bg-emerald-500 flex items-center justify-center text-slate-900 font-bold text-lg">E</div>
-          </header>
+              <h1 className="text-lg font-semibold">Extrudex</h1>
-          <main className="p-4">
+            </header>
-            <Routes>
+            <main className="p-4">
-              <Route path="/" element={<Dashboard />} />
+              <Routes>
-              <Route path="/inventory" element={<InventoryPage />} />
+                <Route path="/" element={<InventoryPage />} />
-            </Routes>
+              </Routes>
-          </main>
+            </main>
-        </div>
+          </div>
+          <ToastContainer />
+        </SSEProvider>
       </BrowserRouter>
     </QueryClientProvider>
   )

frontend/src/components/LoadingSpinner.tsx

@@ -1,8 +0,0 @@
-export default function LoadingSpinner() {
-  return (
-    <div className="flex flex-col items-center gap-3">
-      <div className="w-10 h-10 border-4 border-emerald-500/30 border-t-emerald-400 rounded-full animate-spin" />
-      <p className="text-slate-400 text-sm">Loading dashboard…</p>
-    </div>
-  )
-}

frontend/src/components/PrinterStatusBadge.tsx

@@ -0,0 +1,17 @@
+import { Printer } from 'lucide-react'
+
+const STYLES = {
+  online: 'bg-emerald-600 text-white',
+  offline: 'bg-slate-600 text-slate-200',
+  printing: 'bg-blue-600 text-white animate-pulse',
+}
+
+export default function PrinterStatusBadge({ status, name }: { status: string; name?: string }) {
+  const style = STYLES[status as keyof typeof STYLES] ?? STYLES.offline
+  return (
+    <span className={`inline-flex items-center gap-1.5 rounded-full px-2.5 py-1 text-xs font-medium ${style}`}>
+      <Printer size={12} />
+      {name ? `${name} · ${status}` : status}
+    </span>
+  )
+}

frontend/src/components/RecentPrints.tsx

@@ -1,76 +0,0 @@
-import type { PrintJob } from '../types'
-import { Clock, FileText } from 'lucide-react'
-
-interface RecentPrintsProps {
-  jobs: PrintJob[]
-}
-
-export default function RecentPrints({ jobs }: RecentPrintsProps) {
-  if (jobs.length === 0) {
-    return (
-      <div className="rounded-xl border border-slate-700 bg-slate-800 p-6 text-center text-slate-400">
-        <FileText size={32} className="mx-auto mb-3 text-slate-500" />
-        <p>No recent print jobs</p>
-      </div>
-    )
-  }
-
-  const statusColor = (status: string) => {
-    switch (status.toLowerCase()) {
-      case 'completed': return 'text-emerald-400 bg-emerald-500/10'
-      case 'in_progress': return 'text-sky-400 bg-sky-500/10'
-      case 'failed': return 'text-red-400 bg-red-500/10'
-      default: return 'text-slate-400 bg-slate-500/10'
-    }
-  }
-
-  return (
-    <div className="rounded-xl border border-slate-700 bg-slate-800 overflow-hidden">
-      <div className="overflow-x-auto">
-        <table className="w-full text-left">
-          <thead>
-            <tr className="border-b border-slate-700">
-              <th className="px-4 py-3 text-sm font-medium text-slate-400">Name</th>
-              <th className="px-4 py-3 text-sm font-medium text-slate-400">Status</th>
-              <th className="px-4 py-3 text-sm font-medium text-slate-400">Duration</th>
-              <th className="px-4 py-3 text-sm font-medium text-slate-400">Filament</th>
-              <th className="px-4 py-3 text-sm font-medium text-slate-400">Cost</th>
-            </tr>
-          </thead>
-          <tbody>
-            {jobs.map((job) => (
-              <tr key={job.id} className="border-b border-slate-700/50 last:border-0 hover:bg-slate-700/30 transition-colors">
-                <td className="px-4 py-3 text-sm text-slate-100 font-medium">{job.name}</td>
-                <td className="px-4 py-3">
-                  <span className={`inline-flex items-center gap-1 px-2 py-1 rounded-full text-xs font-medium ${statusColor(job.status)}`}>
-                    {job.status}
-                  </span>
-                </td>
-                <td className="px-4 py-3 text-sm text-slate-300">
-                  <div className="flex items-center gap-1">
-                    <Clock size={14} />
-                    {formatDuration(job.duration_seconds)}
-                  </div>
-                </td>
-                <td className="px-4 py-3 text-sm text-slate-300">
-                  {job.filament_used_grams?.toFixed(1) ?? '-'} g
-                </td>
-                <td className="px-4 py-3 text-sm text-slate-300">
-                  ${job.cost_usd?.toFixed(2) ?? '-'}
-                </td>
-              </tr>
-            ))}
-          </tbody>
-        </table>
-      </div>
-    </div>
-  )
-}
-
-function formatDuration(seconds: number): string {
-  if (!seconds) return '-'
-  const hrs = Math.floor(seconds / 3600)
-  const mins = Math.floor((seconds % 3600) / 60)
-  if (hrs > 0) return `${hrs}h ${mins}m`
-  return `${mins}m`
-}

frontend/src/components/SummaryCard.tsx

@@ -1,31 +0,0 @@
-import type { LucideIcon } from 'lucide-react'
-
-interface SummaryCardProps {
-  title: string
-  value: string | number
-  icon: LucideIcon
-  color: 'emerald' | 'amber' | 'sky' | 'violet'
-}
-
-const colorMap = {
-  emerald: { bg: 'bg-emerald-500/10', border: 'border-emerald-500/20', text: 'text-emerald-400', icon: 'text-emerald-400' },
-  amber:   { bg: 'bg-amber-500/10',  border: 'border-amber-500/20',  text: 'text-amber-400',  icon: 'text-amber-400' },
-  sky:     { bg: 'bg-sky-500/10',    border: 'border-sky-500/20',    text: 'text-sky-400',    icon: 'text-sky-400' },
-  violet:  { bg: 'bg-violet-500/10', border: 'border-violet-500/20', text: 'text-violet-400', icon: 'text-violet-400' },
-}
-
-export default function SummaryCard({ title, value, icon: Icon, color }: SummaryCardProps) {
-  const c = colorMap[color]
-
-  return (
-    <div className={`rounded-xl border ${c.border} ${c.bg} p-5 flex items-start justify-between`}>
-      <div>
-        <p className="text-sm font-medium text-slate-400 mb-1">{title}</p>
-        <p className={`text-3xl font-bold ${c.text}`}>{value}</p>
-      </div>
-      <div className={`p-2 rounded-lg ${c.bg}`}>
-        <Icon size={24} className={c.icon} />
-      </div>
-    </div>
-  )
-}

frontend/src/components/ToastContainer.tsx

@@ -0,0 +1,70 @@
+import { useEffect, useState, useCallback } from 'react'
+import { X, CheckCircle, AlertTriangle, Info } from 'lucide-react'
+import { addToastListener, type ToastMessage } from '../hooks/useSSE'
+
+const ICONS = {
+  info: Info,
+  success: CheckCircle,
+  warning: AlertTriangle,
+}
+
+const STYLES = {
+  info: 'border-blue-600 bg-blue-900/40 text-blue-100',
+  success: 'border-emerald-600 bg-emerald-900/40 text-emerald-100',
+  warning: 'border-amber-600 bg-amber-900/40 text-amber-100',
+}
+
+export default function ToastContainer() {
+  const [toasts, setToasts] = useState<ToastMessage[]>([])
+
+  const remove = useCallback((id: string) => {
+    setToasts(prev => prev.filter(t => t.id !== id))
+  }, [])
+
+  useEffect(() => {
+    return addToastListener((toast) => {
+      setToasts(prev => {
+        // Prevent duplicate identical toasts within 3 seconds
+        const now = Date.now()
+        const recent = prev.filter(
+          t => t.title === toast.title && now - parseInt(t.id.split('-').pop() || '0', 10) < 3000
+        )
+        if (recent.length > 0) return prev
+        return [...prev.slice(-4), toast]
+      })
+      // Auto-dismiss after 5 seconds
+      setTimeout(() => remove(toast.id), 5000)
+    })
+  }, [remove])
+
+  return (
+    <div className="fixed bottom-4 right-4 z-50 flex flex-col gap-2 max-w-sm w-full pointer-events-none">
+      {toasts.map((toast) => {
+        const Icon = ICONS[toast.type]
+        return (
+          <div
+            key={toast.id}
+            className={`pointer-events-auto rounded-lg border px-4 py-3 shadow-lg backdrop-blur-sm transition-all ${STYLES[toast.type]}`}
+          >
+            <div className="flex items-start gap-3">
+              <Icon size={18} className="mt-0.5 shrink-0" />
+              <div className="flex-1 min-w-0">
+                <p className="text-sm font-semibold leading-snug">{toast.title}</p>
+                {toast.body && (
+                  <p className="text-xs opacity-80 mt-0.5">{toast.body}</p>
+                )}
+              </div>
+              <button
+                onClick={() => remove(toast.id)}
+                className="shrink-0 -mr-1 -mt-1 p-1 rounded hover:bg-white/10 text-current opacity-70 hover:opacity-100 transition-opacity"
+                aria-label="Dismiss"
+              >
+                <X size={14} />
+              </button>
+            </div>
+          </div>
+        )
+      })}
+    </div>
+  )
+}

frontend/src/hooks/useSSE.ts

@@ -0,0 +1,193 @@
+import { useEffect, useRef, useCallback } from 'react'
+import { useQueryClient } from '@tanstack/react-query'
+
+export type SSEEventType =
+  | 'printer.status'
+  | 'job.started'
+  | 'job.completed'
+  | 'filament.low'
+
+export interface SSEEvent {
+  type: SSEEventType
+  payload: unknown
+  timestamp: string
+}
+
+export interface ToastMessage {
+  id: string
+  type: 'info' | 'success' | 'warning'
+  title: string
+  body?: string
+}
+
+let toastListeners: Array<(toast: ToastMessage) => void> = []
+
+export function addToastListener(cb: (toast: ToastMessage) => void) {
+  toastListeners.push(cb)
+  return () => {
+    toastListeners = toastListeners.filter(l => l !== cb)
+  }
+}
+
+function emitToast(toast: ToastMessage) {
+  toastListeners.forEach(cb => cb(toast))
+}
+
+const RECONNECT_BASE_MS = 1000
+const RECONNECT_MAX_MS = 30000
+
+export function useSSE(enabled = true) {
+  const queryClient = useQueryClient()
+  const esRef = useRef<EventSource | null>(null)
+  const reconnectTimerRef = useRef<ReturnType<typeof setTimeout> | null>(null)
+  const attemptRef = useRef(0)
+
+  const connect = useCallback(() => {
+    if (!enabled) return
+    if (esRef.current) {
+      esRef.current.close()
+    }
+
+    const es = new EventSource('/api/events')
+    esRef.current = es
+
+    es.onopen = () => {
+      attemptRef.current = 0
+    }
+
+    es.addEventListener('printer.status', (e) => {
+      try {
+        const data = JSON.parse(e.data) as SSEEvent
+        const payload = data.payload as {
+          printer_id: number
+          printer_name: string
+          status: string
+        }
+        // Update printer list cache if it exists
+        queryClient.setQueryData(['printers'], (old: unknown) => {
+          if (!Array.isArray(old)) return old
+          return old.map((p: any) =>
+            p.id === payload.printer_id
+              ? { ...p, status: payload.status, name: payload.printer_name }
+              : p
+          )
+        })
+      } catch {
+        // ignore malformed event
+      }
+    })
+
+    es.addEventListener('job.started', (e) => {
+      try {
+        const data = JSON.parse(e.data) as SSEEvent
+        const payload = data.payload as {
+          job_id: number
+          job_name: string
+          printer_id: number
+          spool_id?: number
+        }
+        emitToast({
+          id: `job-started-${payload.job_id}-${Date.now()}`,
+          type: 'info',
+          title: `Job started: ${payload.job_name}`,
+          body: `Printer #${payload.printer_id}`,
+        })
+        // Invalidate print jobs list
+        queryClient.invalidateQueries({ queryKey: ['print-jobs'] })
+      } catch {
+        // ignore malformed event
+      }
+    })
+
+    es.addEventListener('job.completed', (e) => {
+      try {
+        const data = JSON.parse(e.data) as SSEEvent
+        const payload = data.payload as {
+          job_id: number
+          job_name: string
+          printer_id: number
+          duration_seconds?: number
+          total_grams_used?: number
+          total_cost_usd?: number
+        }
+        const parts: string[] = []
+        if (payload.duration_seconds != null) {
+          const mins = Math.round(payload.duration_seconds / 60)
+          parts.push(`${mins} min`)
+        }
+        if (payload.total_grams_used != null) {
+          parts.push(`${payload.total_grams_used.toFixed(1)} g used`)
+        }
+        emitToast({
+          id: `job-completed-${payload.job_id}-${Date.now()}`,
+          type: 'success',
+          title: `Job completed: ${payload.job_name}`,
+          body: parts.join(' · ') || `Printer #${payload.printer_id}`,
+        })
+        queryClient.invalidateQueries({ queryKey: ['print-jobs'] })
+        queryClient.invalidateQueries({ queryKey: ['filaments'] })
+      } catch {
+        // ignore malformed event
+      }
+    })
+
+    es.addEventListener('filament.low', (e) => {
+      try {
+        const data = JSON.parse(e.data) as SSEEvent
+        const payload = data.payload as {
+          spool_id: number
+          spool_name: string
+          remaining_grams: number
+          threshold_grams: number
+        }
+        emitToast({
+          id: `filament-low-${payload.spool_id}-${Date.now()}`,
+          type: 'warning',
+          title: `Low filament: ${payload.spool_name}`,
+          body: `${payload.remaining_grams} g remaining (threshold ${payload.threshold_grams} g)`,
+        })
+        // Update filament inventory cache in place for instant UI feedback
+        queryClient.setQueryData(['filaments'], (old: unknown) => {
+          if (!old || typeof old !== 'object') return old
+          const o = old as { data?: Array<Record<string, unknown>>; total?: number }
+          if (!Array.isArray(o.data)) return old
+          return {
+            ...o,
+            data: o.data.map((f) =>
+              (f.id as number) === payload.spool_id
+                ? { ...f, remaining_grams: payload.remaining_grams }
+                : f
+            ),
+          }
+        })
+      } catch {
+        // ignore malformed event
+      }
+    })
+
+    es.onerror = () => {
+      es.close()
+      // Exponential backoff with jitter
+      const base = Math.min(RECONNECT_MAX_MS, RECONNECT_BASE_MS * 2 ** attemptRef.current)
+      const jitter = Math.random() * 1000
+      const delay = base + jitter
+      attemptRef.current += 1
+      reconnectTimerRef.current = setTimeout(() => {
+        connect()
+      }, delay)
+    }
+  }, [enabled, queryClient])
+
+  useEffect(() => {
+    connect()
+    return () => {
+      if (reconnectTimerRef.current) {
+        clearTimeout(reconnectTimerRef.current)
+      }
+      if (esRef.current) {
+        esRef.current.close()
+        esRef.current = null
+      }
+    }
+  }, [connect])
+}

frontend/src/main.tsx

@@ -1,25 +1,10 @@
 import { StrictMode } from 'react'
 import { createRoot } from 'react-dom/client'
-import { QueryClient, QueryClientProvider } from '@tanstack/react-query'
-import { BrowserRouter } from 'react-router-dom'
 import './index.css'
 import App from './App'
 
-const queryClient = new QueryClient({
-  defaultOptions: {
-    queries: {
-      staleTime: 30_000,
-      refetchOnWindowFocus: false,
-    },
-  },
-})
-
 createRoot(document.getElementById('root')!).render(
   <StrictMode>
-    <QueryClientProvider client={queryClient}>
+    <App />
-      <BrowserRouter>
-        <App />
-      </BrowserRouter>
-    </QueryClientProvider>
   </StrictMode>,
 )

frontend/src/pages/Dashboard.tsx

@@ -1,139 +0,0 @@
-import { useQuery } from '@tanstack/react-query'
-import { getFilaments, getPrintJobs } from '../services/api'
-import SummaryCard from '../components/SummaryCard'
-import RecentPrints from '../components/RecentPrints'
-import LoadingSpinner from '../components/LoadingSpinner'
-import { Package, AlertTriangle, Printer, DollarSign, Plus, List } from 'lucide-react'
-
-export default function Dashboard() {
-  const {
-    data: filamentData,
-    isLoading: filamentLoading,
-    error: filamentError,
-  } = useQuery({
-    queryKey: ['filaments', 'count'],
-    queryFn: () => getFilaments({ limit: 1 }),
-  })
-
-  const {
-    data: lowStockData,
-    isLoading: lowStockLoading,
-    error: lowStockError,
-  } = useQuery({
-    queryKey: ['filaments', 'lowStock'],
-    queryFn: () => getFilaments({ low_stock: true, limit: 1 }),
-  })
-
-  const {
-    data: recentPrints,
-    isLoading: printsLoading,
-    error: printsError,
-  } = useQuery({
-    queryKey: ['printJobs', 'recent'],
-    queryFn: () => getPrintJobs({ limit: 5 }),
-  })
-
-  const {
-    data: allPrints,
-    isLoading: costLoading,
-    error: costError,
-  } = useQuery({
-    queryKey: ['printJobs', 'all'],
-    queryFn: () => getPrintJobs({ limit: 1000 }),
-  })
-
-  const totalSpools = filamentData?.total ?? 0
-  const lowStockCount = lowStockData?.total ?? 0
-  const recentPrintJobs = recentPrints?.data ?? []
-
-  // Calculate cost this month from all print jobs
-  const now = new Date()
-  const currentMonth = now.getMonth()
-  const currentYear = now.getFullYear()
-  const monthlyCost =
-    allPrints?.data
-      .filter((job) => {
-        const d = new Date(job.started_at)
-        return d.getMonth() === currentMonth && d.getFullYear() === currentYear
-      })
-      .reduce((sum, job) => sum + (job.cost_usd ?? 0), 0) ?? 0
-
-  const isLoading = filamentLoading || lowStockLoading || printsLoading || costLoading
-  const error = filamentError || lowStockError || printsError || costError
-
-  if (isLoading) {
-    return (
-      <div className="min-h-screen flex items-center justify-center bg-slate-900">
-        <LoadingSpinner />
-      </div>
-    )
-  }
-
-  if (error) {
-    return (
-      <div className="min-h-screen flex items-center justify-center bg-slate-900">
-        <div className="p-6 rounded-lg bg-red-900/30 border border-red-500 text-red-200 max-w-md">
-          <h2 className="text-xl font-bold mb-2">Error</h2>
-          <p className="text-sm">{(error as Error).message || 'Failed to load dashboard data.'}</p>
-        </div>
-      </div>
-    )
-  }
-
-  return (
-    <div className="min-h-screen bg-slate-900 p-4 md:p-8">
-      <div className="max-w-6xl mx-auto">
-        <header className="mb-8">
-          <h1 className="text-3xl font-bold text-emerald-400 mb-2">Dashboard</h1>
-          <p className="text-slate-400">Overview of your Extrudex inventory and prints</p>
-        </header>
-
-        {/* Summary Cards Grid */}
-        <div className="grid grid-cols-1 sm:grid-cols-2 lg:grid-cols-4 gap-4 mb-8">
-          <SummaryCard
-            title="Total Spools"
-            value={totalSpools}
-            icon={Package}
-            color="emerald"
-          />
-          <SummaryCard
-            title="Low Stock"
-            value={lowStockCount}
-            icon={AlertTriangle}
-            color={lowStockCount > 0 ? 'amber' : 'emerald'}
-          />
-          <SummaryCard
-            title="Recent Prints"
-            value={recentPrintJobs.length}
-            icon={Printer}
-            color="sky"
-          />
-          <SummaryCard
-            title="Cost This Month"
-            value={`$${monthlyCost.toFixed(2)}`}
-            icon={DollarSign}
-            color="violet"
-          />
-        </div>
-
-        {/* Quick Actions */}
-        <div className="flex flex-wrap gap-3 mb-8">
-          <button className="flex items-center gap-2 px-4 py-2 rounded-lg bg-emerald-600 hover:bg-emerald-500 text-white font-medium transition-colors active:scale-95 touch-manipulation">
-            <Plus size={18} />
-            Add Spool
-          </button>
-          <button className="flex items-center gap-2 px-4 py-2 rounded-lg bg-slate-700 hover:bg-slate-600 text-slate-100 font-medium transition-colors active:scale-95 touch-manipulation">
-            <List size={18} />
-            View Inventory
-          </button>
-        </div>
-
-        {/* Recent Prints Section */}
-        <section>
-          <h2 className="text-xl font-semibold text-slate-100 mb-4">Recent Prints</h2>
-          <RecentPrints jobs={recentPrintJobs} />
-        </section>
-      </div>
-    </div>
-  )
-}

frontend/src/services/api.ts

@@ -1,19 +0,0 @@
-import axios from 'axios'
-import type { ListResponse, FilamentSpool, PrintJob } from '../types'
-
-const api = axios.create({
-  baseURL: '/api',
-  headers: { 'Content-Type': 'application/json' },
-})
-
-export async function getFilaments(params?: { low_stock?: boolean; limit?: number; offset?: number }) {
-  const res = await api.get<ListResponse<FilamentSpool>>('/filaments', { params })
-  return res.data
-}
-
-export async function getPrintJobs(params?: { limit?: number; offset?: number }) {
-  const res = await api.get<ListResponse<PrintJob>>('/print-jobs', { params })
-  return res.data
-}
-
-export default api

frontend/src/types/index.ts

@@ -1,42 +0,0 @@
-export interface FilamentSpool {
-  id: number;
-  name: string;
-  material_base_id: number;
-  material_finish_id: number;
-  material_modifier_id: number;
-  color_hex: string;
-  brand: string;
-  diameter_mm: number;
-  initial_grams: number;
-  remaining_grams: number;
-  spool_weight_grams: number;
-  cost_usd: number;
-  low_stock_threshold_grams: number;
-  notes: string;
-  barcode: string;
-  created_at: string;
-  updated_at: string;
-  deleted_at: string | null;
-}
-
-export interface PrintJob {
-  id: number;
-  name: string;
-  printer_id: number;
-  filament_id: number;
-  status: string;
-  duration_seconds: number;
-  filament_used_grams: number;
-  cost_usd: number;
-  started_at: string;
-  completed_at: string | null;
-  created_at: string;
-  updated_at: string;
-}
-
-export interface ListResponse<T> {
-  data: T[];
-  total: number;
-  limit: number;
-  offset: number;
-}

frontend/tsconfig.json

@@ -15,7 +15,6 @@
     "noUnusedLocals": true,
     "noUnusedParameters": true,
     "noFallthroughCasesInSwitch": true,
-    "ignoreDeprecations": "5.0",
     "baseUrl": ".",
     "paths": {
       "@/*": ["src/*"]