From 1f7483687fdcd82c472cfdecf983ef5b8c9c3472 Mon Sep 17 00:00:00 2001
From: softsimon <softsimon@protonmail.com>
Date: Thu, 8 Oct 2020 00:20:42 +0700
Subject: [PATCH] Don't allow invoices lower than 0.001 and require 0.01 for
 sponsorship. refs #122

---
 backend/src/api/donations.ts                  | 37 +++++++++++--------
 backend/src/routes.ts                         |  4 +-
 .../app/components/about/about.component.html | 14 +++++--
 3 files changed, 35 insertions(+), 20 deletions(-)

diff --git a/backend/src/api/donations.ts b/backend/src/api/donations.ts
index 1c13f7a79..fde21940f 100644
--- a/backend/src/api/donations.ts
+++ b/backend/src/api/donations.ts
@@ -48,23 +48,30 @@ class Donations {
     if (!data || !data.id) {
       return;
     }
+
     const response = await this.getStatus(data.id);
-    if (response.status === 'complete') {
-      if (this.notifyDonationStatusCallback) {
-        this.notifyDonationStatusCallback(data.id);
-      }
-
-      let imageUrl = '';
-      if (response.orderId !== '') {
-        try {
-          imageUrl = await this.$getTwitterImageUrl(response.orderId);
-        } catch (e) {
-          console.log('Error fetching twitter image from Hive', e.message);
-        }
-      }
-
-      this.$addDonationToDatabase(response, imageUrl);
+    if (response.status !== 'complete') {
+      return;
     }
+
+    if (this.notifyDonationStatusCallback) {
+      this.notifyDonationStatusCallback(data.id);
+    }
+
+    if (parseFloat(response.btcPaid) < 0.001) {
+      return;
+    }
+
+    let imageUrl = '';
+    if (response.orderId !== '') {
+      try {
+        imageUrl = await this.$getTwitterImageUrl(response.orderId);
+      } catch (e) {
+        console.log('Error fetching twitter image', e.message);
+      }
+    }
+
+    this.$addDonationToDatabase(response, imageUrl);
   }
 
   private getStatus(id: string): Promise<any> {
diff --git a/backend/src/routes.ts b/backend/src/routes.ts
index 0442fcb7a..cde97e39c 100644
--- a/backend/src/routes.ts
+++ b/backend/src/routes.ts
@@ -117,8 +117,8 @@ class Routes {
       return;
     }
 
-    if (p.amount < 0.01) {
-      res.status(400).send('Amount needs to be at least 0.01');
+    if (p.amount < 0.001) {
+      res.status(400).send('Amount needs to be at least 0.001');
       return;
     }
 
diff --git a/frontend/src/app/components/about/about.component.html b/frontend/src/app/components/about/about.component.html
index a7a289b20..f84270ca1 100644
--- a/frontend/src/app/components/about/about.component.html
+++ b/frontend/src/app/components/about/about.component.html
@@ -27,9 +27,9 @@
             <div class="input-group-prepend" style="width: 42px;">
               <span class="input-group-text">₿</span>
             </div>
-            <input formControlName="amount" class="form-control" type="number" min="0.01" step="1E-03">
+            <input formControlName="amount" class="form-control" type="number" min="0.001" step="1E-03">
           </div>
-          <div class="input-group mb-4">
+          <div class="input-group mb-4" *ngIf="donationForm.get('amount').value >= 0.01; else lowAmount">
             <div class="input-group-prepend" style="width: 42px;">
               <span class="input-group-text">@</span>
             </div>
@@ -41,12 +41,20 @@
         </form>
       </div>
 
+      <ng-template #lowAmount>
+        <div class="input-group mb-4 text-small">
+          If you donate 0.01 BTC or more, your profile photo will be added to the list of sponsors above :)
+        </div>
+      </ng-template>
+
       <div *ngIf="donationStatus === 3" class="text-center">
-        <div class="qr-wrapper mt-4 mb-2">
+        <div class="qr-wrapper mt-2 mb-2">
           <app-qrcode [data]="donationObj.address + '?amount=' + donationObj.amount"></app-qrcode>
         </div>
         <br>
         <p style="font-size: 10px;">{{ donationObj.address }}</p>
+        <p style="font-size: 12px;">{{ donationObj.amount }} BTC</p>
+
         <p>Waiting for transaction... </p>
         <div class="spinner-border text-light"></div>
       </div>