From 7c2d2a3e15e92b2217e03044f3b9f10b624c2a9b Mon Sep 17 00:00:00 2001
From: Sebastian <sebasjm@gmail.com>
Date: Thu, 15 Jul 2021 15:03:45 -0300
Subject: simplest implementation to remove one provider, also added a
 user-defined name for provider

---
 packages/taler-wallet-core/src/db.ts               |  5 ++++
 .../src/operations/backup/index.ts                 | 32 +++++++++++++++++-----
 packages/taler-wallet-core/src/wallet.ts           |  7 +++++
 3 files changed, 37 insertions(+), 7 deletions(-)

diff --git a/packages/taler-wallet-core/src/db.ts b/packages/taler-wallet-core/src/db.ts
index 2a2aba461..0bb8db17a 100644
--- a/packages/taler-wallet-core/src/db.ts
+++ b/packages/taler-wallet-core/src/db.ts
@@ -1586,6 +1586,11 @@ export interface BackupProviderRecord {
    */
   baseUrl: string;
 
+  /**
+   * Name of the provider
+   */
+  name: string;
+
   /**
    * Terms of service of the provider.
    * Might be unavailable in the DB in certain situations
diff --git a/packages/taler-wallet-core/src/operations/backup/index.ts b/packages/taler-wallet-core/src/operations/backup/index.ts
index 9593325a3..3799741ee 100644
--- a/packages/taler-wallet-core/src/operations/backup/index.ts
+++ b/packages/taler-wallet-core/src/operations/backup/index.ts
@@ -304,8 +304,8 @@ async function runBackupCycleForProvider(
       "if-none-match": encodeCrock(currentBackupHash),
       ...(provider.lastBackupHash
         ? {
-            "if-match": provider.lastBackupHash,
-          }
+          "if-match": provider.lastBackupHash,
+        }
         : {}),
     },
   });
@@ -522,6 +522,21 @@ export async function processBackupForProvider(
   await guardOperationException(run, onOpErr);
 }
 
+export interface RemoveBackupProviderRequest {
+  provider: string;
+}
+
+export const codecForRemoveBackupProvider = (): Codec<RemoveBackupProviderRequest> =>
+  buildCodecForObject<RemoveBackupProviderRequest>()
+    .property("provider", codecForString())
+    .build("RemoveBackupProviderRequest");
+
+export async function removeBackupProvider(ws: InternalWalletState, req: RemoveBackupProviderRequest): Promise<void> {
+  await ws.db.mktx(({ backupProviders }) => ({ backupProviders }))
+    .runReadWrite(async (tx) => {
+      await tx.backupProviders.delete(req.provider)
+    })
+}
 
 export interface RunBackupCycleRequest {
   /**
@@ -590,6 +605,8 @@ const codecForSyncTermsOfServiceResponse = (): Codec<SyncTermsOfServiceResponse>
 
 export interface AddBackupProviderRequest {
   backupProviderBaseUrl: string;
+
+  name: string;
   /**
    * Activate the provider.  Should only be done after
    * the user has reviewed the provider.
@@ -600,6 +617,7 @@ export interface AddBackupProviderRequest {
 export const codecForAddBackupProviderRequest = (): Codec<AddBackupProviderRequest> =>
   buildCodecForObject<AddBackupProviderRequest>()
     .property("backupProviderBaseUrl", codecForString())
+    .property("name", codecForString())
     .property("activate", codecOptional(codecForBoolean()))
     .build("AddBackupProviderRequest");
 
@@ -649,6 +667,7 @@ export async function addBackupProvider(
       }
       await tx.backupProviders.put({
         state,
+        name: req.name,
         terms: {
           annualFee: terms.annual_fee,
           storageLimitInMegabytes: terms.storage_limit_in_megabytes,
@@ -661,11 +680,7 @@ export async function addBackupProvider(
     });
 }
 
-export async function removeBackupProvider(
-  syncProviderBaseUrl: string,
-): Promise<void> {}
-
-export async function restoreFromRecoverySecret(): Promise<void> {}
+export async function restoreFromRecoverySecret(): Promise<void> { }
 
 /**
  * Information about one provider.
@@ -676,6 +691,7 @@ export async function restoreFromRecoverySecret(): Promise<void> {}
 export interface ProviderInfo {
   active: boolean;
   syncProviderBaseUrl: string;
+  name: string;
   terms?: BackupProviderTerms;
   /**
    * Last communication issue with the provider.
@@ -830,6 +846,7 @@ export async function getBackupInfo(
           : undefined,
       paymentStatus: await getProviderPaymentInfo(ws, x),
       terms: x.terms,
+      name: x.name,
     });
   }
   return {
@@ -890,6 +907,7 @@ async function backupRecoveryTheirs(
         if (!existingProv) {
           await tx.backupProviders.put({
             baseUrl: prov.url,
+            name: 'not-defined',
             paymentProposalIds: [],
             state: {
               tag: BackupProviderStateTag.Ready,
diff --git a/packages/taler-wallet-core/src/wallet.ts b/packages/taler-wallet-core/src/wallet.ts
index d46914b37..e6d541e9d 100644
--- a/packages/taler-wallet-core/src/wallet.ts
+++ b/packages/taler-wallet-core/src/wallet.ts
@@ -41,11 +41,13 @@ import {
 import {
   addBackupProvider,
   codecForAddBackupProviderRequest,
+  codecForRemoveBackupProvider,
   codecForRunBackupCycle,
   getBackupInfo,
   getBackupRecovery,
   loadBackupRecovery,
   processBackupForProvider,
+  removeBackupProvider,
   runBackupCycle,
 } from "./operations/backup/index.js";
 import { exportBackup } from "./operations/backup/export.js";
@@ -814,6 +816,11 @@ async function dispatchRequestInternal(
       await runBackupCycle(ws, req);
       return {};
     }
+    case "removeBackupProvider": {
+      const req = codecForRemoveBackupProvider().decode(payload);
+      await removeBackupProvider(ws, req);
+      return {};
+    }
     case "exportBackupRecovery": {
       const resp = await getBackupRecovery(ws);
       return resp;
-- 
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