From 2bb71653acb3d9e267f38e11ebd304339c0b12f6 Mon Sep 17 00:00:00 2001
From: Jose Olarte III <brownspank@anomalistdesign.com>
Date: Thu, 1 May 2025 21:32:15 +0800
Subject: [PATCH] New contact QR scan view for Capacitor version

---
 src/router/index.ts                 |   5 +
 src/views/ContactQRScanShowView.vue |   6 +-
 src/views/ContactQRScanView.vue     | 426 ++++++++++++++++++++++++++++
 3 files changed, 434 insertions(+), 3 deletions(-)
 create mode 100644 src/views/ContactQRScanView.vue

diff --git a/src/router/index.ts b/src/router/index.ts
index a359a484..f82dccd0 100644
--- a/src/router/index.ts
+++ b/src/router/index.ts
@@ -87,6 +87,11 @@ const routes: Array<RouteRecordRaw> = [
     name: "contact-qr",
     component: () => import("../views/ContactQRScanShowView.vue"),
   },
+  {
+    path: "/contact-qr-scan",
+    name: "contact-qr-scan",
+    component: () => import("../views/ContactQRScanView.vue"),
+  },
   {
     path: "/contacts",
     name: "contacts",
diff --git a/src/views/ContactQRScanShowView.vue b/src/views/ContactQRScanShowView.vue
index d925a22c..c1bb9823 100644
--- a/src/views/ContactQRScanShowView.vue
+++ b/src/views/ContactQRScanShowView.vue
@@ -83,12 +83,12 @@
         ></div>
       </div>
       <div v-else>
-        <button
+        <router-link
+          :to="{ name: 'contact-qr-scan' }"
           class="bg-blue-500 text-white px-4 py-2 rounded-md mt-4"
-          @click="startScanning"
         >
           Start Scanning
-        </button>
+        </router-link>
       </div>
       <span v-if="error" class="text-red-500 block mt-2">{{ error }}</span>
       <span v-else class="block mt-2">
diff --git a/src/views/ContactQRScanView.vue b/src/views/ContactQRScanView.vue
new file mode 100644
index 00000000..c7a4b68a
--- /dev/null
+++ b/src/views/ContactQRScanView.vue
@@ -0,0 +1,426 @@
+<template>
+  <!-- CONTENT -->
+  <section id="Content" class="relativew-[100vw] h-[100vh]">
+	<div class="absolute inset-x-0 bottom-0 bg-black/50 p-6">
+		<p class="text-center text-white mb-3">
+			Point your camera at a TimeSafari contact QR code to scan it automatically.
+		</p>
+
+      	<p v-if="error" class="text-center text-rose-300 mb-3">{{ error }}</p>
+
+		<div class="text-center">
+			<button
+				class="text-center text-white leading-none bg-slate-400 p-2 rounded-full"
+				@click="$router.back()"
+			>
+				<font-awesome icon="xmark" class="w-[1em]"></font-awesome>
+			</button>
+		</div>
+	</div>
+
+    <div class="text-center">
+      
+    </div>
+  </section>
+</template>
+
+<script lang="ts">
+import { Component, Vue } from "vue-facing-decorator";
+import { Router } from "vue-router";
+import { logger } from "../utils/logger";
+import { QRScannerFactory } from "../services/QRScanner/QRScannerFactory";
+import QuickNav from "../components/QuickNav.vue";
+import { NotificationIface } from "../constants/app";
+import { db } from "../db/index";
+import { Contact } from "../db/tables/contacts";
+import { getContactJwtFromJwtUrl } from "../libs/crypto";
+import { decodeEndorserJwt } from "../libs/crypto/vc";
+import { retrieveSettingsForActiveAccount } from "../db/index";
+import { setVisibilityUtil } from "../libs/endorserServer";
+
+interface QRScanResult {
+  rawValue?: string;
+  barcode?: string;
+}
+
+@Component({
+  components: {
+    QuickNav,
+  },
+})
+export default class ContactQRScan extends Vue {
+  $notify!: (notification: NotificationIface, timeout?: number) => void;
+  $router!: Router;
+
+  isScanning = false;
+  error: string | null = null;
+  activeDid = "";
+  apiServer = "";
+
+  // Add new properties to track scanning state
+  private lastScannedValue: string = "";
+  private lastScanTime: number = 0;
+  private readonly SCAN_DEBOUNCE_MS = 2000; // Prevent duplicate scans within 2 seconds
+
+  // Add cleanup tracking
+  private isCleaningUp = false;
+  private isMounted = false;
+
+  async created() {
+    try {
+      const settings = await retrieveSettingsForActiveAccount();
+      this.activeDid = settings.activeDid || "";
+      this.apiServer = settings.apiServer || "";
+    } catch (error) {
+      logger.error("Error initializing component:", {
+        error: error instanceof Error ? error.message : String(error),
+        stack: error instanceof Error ? error.stack : undefined,
+      });
+      this.$notify({
+        group: "alert",
+        type: "danger",
+        title: "Initialization Error",
+        text: "Failed to initialize QR scanner. Please try again.",
+      });
+    }
+  }
+
+  async startScanning() {
+    if (this.isCleaningUp) {
+      logger.debug("Cannot start scanning during cleanup");
+      return;
+    }
+
+    try {
+      this.error = null;
+      this.isScanning = true;
+      this.lastScannedValue = "";
+      this.lastScanTime = 0;
+
+      const scanner = QRScannerFactory.getInstance();
+
+      // Check if scanning is supported first
+      if (!(await scanner.isSupported())) {
+        this.error =
+          "Camera access requires HTTPS. Please use a secure connection.";
+        this.isScanning = false;
+        this.$notify(
+          {
+            group: "alert",
+            type: "warning",
+            title: "HTTPS Required",
+            text: "Camera access requires a secure (HTTPS) connection",
+          },
+          5000,
+        );
+        return;
+      }
+
+      // Check permissions first
+      if (!(await scanner.checkPermissions())) {
+        const granted = await scanner.requestPermissions();
+        if (!granted) {
+          this.error = "Camera permission denied";
+          this.isScanning = false;
+          // Show notification for better visibility
+          this.$notify(
+            {
+              group: "alert",
+              type: "warning",
+              title: "Camera Access Required",
+              text: "Camera permission denied",
+            },
+            5000,
+          );
+          return;
+        }
+      }
+
+      // Add scan listener
+      scanner.addListener({
+        onScan: this.onScanDetect,
+        onError: this.onScanError,
+      });
+
+      // Start scanning
+      await scanner.startScan();
+    } catch (error) {
+      this.error = error instanceof Error ? error.message : String(error);
+      this.isScanning = false;
+      logger.error("Error starting scan:", {
+        error: error instanceof Error ? error.message : String(error),
+        stack: error instanceof Error ? error.stack : undefined,
+      });
+    }
+  }
+
+  async stopScanning() {
+    try {
+      const scanner = QRScannerFactory.getInstance();
+      await scanner.stopScan();
+    } catch (error) {
+      logger.error("Error stopping scan:", {
+        error: error instanceof Error ? error.message : String(error),
+        stack: error instanceof Error ? error.stack : undefined,
+      });
+    } finally {
+      this.isScanning = false;
+      this.lastScannedValue = "";
+      this.lastScanTime = 0;
+    }
+  }
+
+  async cleanupScanner() {
+    if (this.isCleaningUp) {
+      return;
+    }
+
+    this.isCleaningUp = true;
+    try {
+      logger.info("Cleaning up QR scanner resources");
+      await this.stopScanning();
+      await QRScannerFactory.cleanup();
+    } catch (error) {
+      logger.error("Error during scanner cleanup:", {
+        error: error instanceof Error ? error.message : String(error),
+        stack: error instanceof Error ? error.stack : undefined,
+      });
+    } finally {
+      this.isCleaningUp = false;
+    }
+  }
+
+  /**
+   * Handle QR code scan result with debouncing to prevent duplicate scans
+   */
+  async onScanDetect(result: string | QRScanResult) {
+    try {
+      // Extract raw value from different possible formats
+      const rawValue =
+        typeof result === "string"
+          ? result
+          : result?.rawValue || result?.barcode;
+      if (!rawValue) {
+        logger.warn("Invalid scan result - no value found:", result);
+        return;
+      }
+
+      // Debounce duplicate scans
+      const now = Date.now();
+      if (
+        rawValue === this.lastScannedValue &&
+        now - this.lastScanTime < this.SCAN_DEBOUNCE_MS
+      ) {
+        logger.info("Ignoring duplicate scan:", rawValue);
+        return;
+      }
+
+      // Update scan tracking
+      this.lastScannedValue = rawValue;
+      this.lastScanTime = now;
+
+      logger.info("Processing QR code scan result:", rawValue);
+
+      // Extract JWT
+      const jwt = getContactJwtFromJwtUrl(rawValue);
+      if (!jwt) {
+        logger.warn("Invalid QR code format - no JWT found in URL");
+        this.$notify({
+          group: "alert",
+          type: "danger",
+          title: "Invalid QR Code",
+          text: "This QR code does not contain valid contact information. Please scan a TimeSafari contact QR code.",
+        });
+        return;
+      }
+
+      // Process JWT and contact info
+      logger.info("Decoding JWT payload from QR code");
+      const decodedJwt = await decodeEndorserJwt(jwt);
+      if (!decodedJwt?.payload?.own) {
+        logger.warn("Invalid JWT payload - missing 'own' field");
+        this.$notify({
+          group: "alert",
+          type: "danger",
+          title: "Invalid Contact Info",
+          text: "The contact information is incomplete or invalid.",
+        });
+        return;
+      }
+
+      const contactInfo = decodedJwt.payload.own;
+      if (!contactInfo.did) {
+        logger.warn("Invalid contact info - missing DID");
+        this.$notify({
+          group: "alert",
+          type: "danger",
+          title: "Invalid Contact",
+          text: "The contact DID is missing.",
+        });
+        return;
+      }
+
+      // Create contact object
+      const contact = {
+        did: contactInfo.did,
+        name: contactInfo.name || "",
+        email: contactInfo.email || "",
+        phone: contactInfo.phone || "",
+        company: contactInfo.company || "",
+        title: contactInfo.title || "",
+        notes: contactInfo.notes || "",
+      };
+
+      // Add contact and stop scanning
+      logger.info("Adding new contact to database:", {
+        did: contact.did,
+        name: contact.name,
+      });
+      await this.addNewContact(contact);
+      await this.stopScanning();
+      this.$router.back(); // Return to previous view after successful scan
+    } catch (error) {
+      logger.error("Error processing contact QR code:", {
+        error: error instanceof Error ? error.message : String(error),
+        stack: error instanceof Error ? error.stack : undefined,
+      });
+      this.$notify({
+        group: "alert",
+        type: "danger",
+        title: "Error",
+        text:
+          error instanceof Error
+            ? error.message
+            : "Could not process QR code. Please try again.",
+      });
+    }
+  }
+
+  onScanError(error: Error) {
+    this.error = error.message;
+    logger.error("QR code scan error:", {
+      error: error.message,
+      stack: error.stack,
+    });
+  }
+
+  async setVisibility(contact: Contact, visibility: boolean) {
+    const result = await setVisibilityUtil(
+      this.activeDid,
+      this.apiServer,
+      this.axios,
+      db,
+      contact,
+      visibility,
+    );
+    if (result.error) {
+      this.$notify({
+        group: "alert",
+        type: "danger",
+        title: "Error Setting Visibility",
+        text: result.error as string,
+      });
+    } else if (!result.success) {
+      logger.warn("Unexpected result from setting visibility:", result);
+    }
+  }
+
+  async addNewContact(contact: Contact) {
+    try {
+      logger.info("Opening database connection for new contact");
+      await db.open();
+
+      // Check if contact already exists
+      const existingContacts = await db.contacts.toArray();
+      const existingContact = existingContacts.find(
+        (c) => c.did === contact.did,
+      );
+
+      if (existingContact) {
+        logger.info("Contact already exists", { did: contact.did });
+        this.$notify(
+          {
+            group: "alert",
+            type: "warning",
+            title: "Contact Exists",
+            text: "This contact has already been added to your list.",
+          },
+          3000,
+        );
+        return;
+      }
+
+      // Add new contact
+      await db.contacts.add(contact);
+
+      if (this.activeDid) {
+        logger.info("Setting contact visibility", { did: contact.did });
+        await this.setVisibility(contact, true);
+        contact.seesMe = true;
+      }
+
+      this.$notify(
+        {
+          group: "alert",
+          type: "success",
+          title: "Contact Added",
+          text: this.activeDid
+            ? "They were added, and your activity is visible to them."
+            : "They were added.",
+        },
+        3000,
+      );
+    } catch (error) {
+      logger.error("Error saving contact to database:", {
+        did: contact.did,
+        error: error instanceof Error ? error.message : String(error),
+        stack: error instanceof Error ? error.stack : undefined,
+      });
+      this.$notify(
+        {
+          group: "alert",
+          type: "danger",
+          title: "Contact Error",
+          text: "Could not save contact. Check if it already exists.",
+        },
+        5000,
+      );
+    }
+  }
+
+  // Lifecycle hooks
+  mounted() {
+    this.isMounted = true;
+    document.addEventListener("pause", this.handleAppPause);
+    document.addEventListener("resume", this.handleAppResume);
+    this.startScanning(); // Automatically start scanning when view is mounted
+  }
+
+  beforeDestroy() {
+    this.isMounted = false;
+    document.removeEventListener("pause", this.handleAppPause);
+    document.removeEventListener("resume", this.handleAppResume);
+    this.cleanupScanner();
+  }
+
+  async handleAppPause() {
+    if (!this.isMounted) return;
+
+    logger.info("App paused, stopping scanner");
+    await this.stopScanning();
+  }
+
+  handleAppResume() {
+    if (!this.isMounted) return;
+
+    logger.info("App resumed, scanner can be restarted by user");
+    this.isScanning = false;
+  }
+}
+</script>
+
+<style scoped>
+.aspect-square {
+  aspect-ratio: 1 / 1;
+}
+</style> 
\ No newline at end of file