Add contributing file, rename some files

src/app/util/nip46.ts

@@ -0,0 +1,60 @@
+import {writable} from "svelte/store"
+import type {Nip46ResponseWithResult} from "@welshman/signer"
+import {Nip46Broker, makeSecret} from "@welshman/signer"
+import {
+  NIP46_PERMS,
+  PLATFORM_URL,
+  PLATFORM_NAME,
+  PLATFORM_LOGO,
+  SIGNER_RELAYS,
+} from "@app/core/state"
+import {pushToast} from "@app/util/toast"
+
+export class Nip46Controller {
+  url = writable("")
+  bunker = writable("")
+  loading = writable(false)
+  clientSecret = makeSecret()
+  abortController = new AbortController()
+  broker = new Nip46Broker({clientSecret: this.clientSecret, relays: SIGNER_RELAYS})
+  onNostrConnect: (response: Nip46ResponseWithResult) => void
+
+  constructor({onNostrConnect}: {onNostrConnect: (response: Nip46ResponseWithResult) => void}) {
+    this.onNostrConnect = onNostrConnect
+  }
+
+  async start() {
+    const url = await this.broker.makeNostrconnectUrl({
+      perms: NIP46_PERMS,
+      url: PLATFORM_URL,
+      name: PLATFORM_NAME,
+      image: PLATFORM_LOGO,
+    })
+
+    this.url.set(url)
+
+    let response
+    try {
+      response = await this.broker.waitForNostrconnect(url, this.abortController.signal)
+    } catch (errorResponse: any) {
+      if (errorResponse?.error) {
+        pushToast({
+          theme: "error",
+          message: `Received error from signer: ${errorResponse.error}`,
+        })
+      } else if (errorResponse) {
+        console.error(errorResponse)
+      }
+    }
+
+    if (response) {
+      this.loading.set(true)
+      this.onNostrConnect(response)
+    }
+  }
+
+  stop() {
+    this.broker.cleanup()
+    this.abortController.abort()
+  }
+}