Let the add-printer form take every supported kind

A kind selector (Bambu, Klipper, PrusaLink, OctoPrint) decides which fields
appear: serial and access code for Bambu, an API key for PrusaLink and
OctoPrint, neither for Klipper. Discovered printers of any of these kinds
now fill the form in.

apps/web/pages/setup.vue

@@ -75,7 +75,7 @@ async function addPrinter(farmId: string, printer: NewPrinter) {
   try {
     await apiFetch(`/farms/${farmId}/printers`, {
       method: "POST",
-      body: { ...printer, vendor: "bambu" },
+      body: printer,
     });
   } catch (err) {
     throw new Error(apiErrorMessage(err, "the printer could not be added"));

packages/ui/src/components/AddPrinter.vue

@@ -1,6 +1,6 @@
 <script setup lang="ts">
 import { computed, ref } from "vue";
-import type { AppDiscoveredCandidate, NewPrinter } from "../types";
+import type { AppDiscoveredCandidate, NewPrinter, PrinterKind } from "../types";
 
 const props = defineProps<{
   gatewayOnline: boolean | null;
@@ -10,6 +10,15 @@ const props = defineProps<{
   add: (printer: NewPrinter) => Promise<void>;
 }>();
 
+const KINDS: { value: PrinterKind; label: string }[] = [
+  { value: "bambu", label: "Bambu Lab" },
+  { value: "klipper", label: "Klipper (Moonraker)" },
+  { value: "prusa_link", label: "Prusa (PrusaLink)" },
+  { value: "octoprint", label: "OctoPrint" },
+];
+
+const vendor = ref<PrinterKind>("bambu");
+const apiKey = ref("");
 const name = ref("");
 const host = ref("");
 const serialNumber = ref("");
@@ -18,11 +27,14 @@ const busy = ref(false);
 const failure = ref("");
 const added = ref("");
 
-// Only Bambu has a working driver; the others are listed by discovery but
-// cannot be driven yet, so offering them would add a printer that does nothing.
-const usable = computed(() => props.candidates.filter((c) => c.vendor.startsWith("bambu") && !c.matchedOn));
+// Discovery names the vendors the same way the form does, except that a
+// Bambu may be reported as `bambu_v1`/`bambu_v2`.
+const kindOf = (vendorName: string): PrinterKind | undefined =>
+  vendorName.startsWith("bambu") ? "bambu" : KINDS.find((k) => k.value === vendorName)?.value;
+const usable = computed(() => props.candidates.filter((c) => kindOf(c.vendor) && !c.matchedOn));
 
 function fill(candidate: AppDiscoveredCandidate) {
+  vendor.value = kindOf(candidate.vendor) ?? vendor.value;
   host.value = candidate.address;
   serialNumber.value = candidate.serial ?? "";
   name.value = candidate.name || candidate.model || name.value;
@@ -33,12 +45,14 @@ async function submit() {
   failure.value = "";
   added.value = "";
   try {
-    await props.add({
-      name: name.value.trim(),
-      host: host.value.trim(),
-      serialNumber: serialNumber.value.trim(),
-      accessCode: accessCode.value.trim(),
-    });
+    const printer: NewPrinter = { vendor: vendor.value, name: name.value.trim(), host: host.value.trim() };
+    if (vendor.value === "bambu") {
+      printer.serialNumber = serialNumber.value.trim();
+      printer.accessCode = accessCode.value.trim();
+    } else if (vendor.value !== "klipper") {
+      printer.apiKey = apiKey.value.trim();
+    }
+    await props.add(printer);
     added.value = name.value;
     name.value = host.value = serialNumber.value = "";
   } catch (err) {
@@ -47,6 +61,7 @@ async function submit() {
     // Cleared on success AND failure: the code should not sit in a form
     // after it has been sent, and retyping eight digits is cheap.
     accessCode.value = "";
+    apiKey.value = "";
     busy.value = false;
   }
 }
@@ -54,9 +69,9 @@ async function submit() {
 
 <template>
   <section class="add-printer" aria-label="Add a printer">
-    <h3>Add a Bambu printer</h3>
+    <h3>Add a printer</h3>
     <p v-if="gatewayOnline === false">
-      The gateway is not connected. The printer's access code is handed to the gateway and kept only there, so it
+      The gateway is not connected. The printer's credentials are handed to the gateway and kept only there, so it
       has to be online to add a printer.
     </p>
 
@@ -68,16 +83,33 @@ async function submit() {
     </div>
 
     <form @submit.prevent="submit">
-      <label>Name <input v-model="name" required maxlength="200" placeholder="Bench P1S" /></label>
+      <label>
+        Kind
+        <select v-model="vendor">
+          <option v-for="k in KINDS" :key="k.value" :value="k.value">{{ k.label }}</option>
+        </select>
+      </label>
+      <label>Name <input v-model="name" required maxlength="200" placeholder="Bench printer" /></label>
       <label>
         Address
         <input v-model="host" required maxlength="255" pattern="[A-Za-z0-9.:_\-]+" placeholder="192.168.0.20" />
       </label>
-      <label>
+      <label v-if="vendor === 'bambu'">
         Serial number
         <input v-model="serialNumber" required minlength="5" maxlength="64" pattern="[A-Za-z0-9]+" />
       </label>
-      <label>
+      <label v-if="vendor === 'octoprint' || vendor === 'prusa_link'">
+        API key
+        <input
+          v-model="apiKey"
+          required
+          type="password"
+          autocomplete="off"
+          maxlength="256"
+          :placeholder="vendor === 'octoprint' ? 'from OctoPrint settings' : 'from PrusaLink settings'"
+        />
+      </label>
+      <label v-if="vendor === 'bambu'">
         Access code
         <input
           v-model="accessCode"
@@ -93,7 +125,7 @@ async function submit() {
       </button>
     </form>
     <p class="add-printer__note">
-      The access code goes to your gateway and nowhere else; Continuum's servers do not keep it.
+      The access code or API key goes to your gateway and nowhere else; Continuum's servers do not keep it.
     </p>
     <p v-if="added" role="status" class="add-printer__ok">Added {{ added }}.</p>
     <p v-if="failure" role="alert" class="add-printer__error">{{ failure }}</p>

packages/ui/src/index.ts

@@ -11,4 +11,4 @@ export { default as GatewaySetup } from "./components/GatewaySetup.vue";
 export { default as AddPrinter } from "./components/AddPrinter.vue";
 export { default as ManagedPrinters } from "./components/ManagedPrinters.vue";
 export { default as FarmStatus } from "./components/FarmStatus.vue";
-export type { NewPrinter, AppOrg, AppAlert, AppDiscoveredCandidate, AppFarm, AppFarmDiscovery, AppJob, AppPrinterState, AppTelemetryMessage, PrinterCommand } from "./types";
+export type { PrinterKind, NewPrinter, AppOrg, AppAlert, AppDiscoveredCandidate, AppFarm, AppFarmDiscovery, AppJob, AppPrinterState, AppTelemetryMessage, PrinterCommand } from "./types";

packages/ui/src/types.ts

@@ -125,10 +125,19 @@ export interface AppOrg {
   name: string;
 }
 
-/** What the add-printer form hands to the page. The access code is a secret: send it, do not keep it. */
+/** The printer kinds a gateway can drive, by the name the API takes. */
+export type PrinterKind = "bambu" | "klipper" | "octoprint" | "prusa_link";
+
+/**
+ * What the add-printer form hands to the page. The access code and API key
+ * are secrets: send them, do not keep them. Which are present depends on
+ * `vendor` (Bambu: code + serial; OctoPrint/PrusaLink: API key; Klipper: none).
+ */
 export interface NewPrinter {
+  vendor: PrinterKind;
   name: string;
   host: string;
-  serialNumber: string;
-  accessCode: string;
+  serialNumber?: string;
+  accessCode?: string;
+  apiKey?: string;
 }