get wallet balance action

Dockerfile

@@ -83,6 +83,7 @@ COPY --from=bitcoin-core /opt /opt
 COPY ./manager/target/${ARCH}-unknown-linux-musl/release/bitcoind-manager \
      ./docker_entrypoint.sh \
      ./actions/getaddress.sh \
+     ./actions/getbalance.sh \
      ./actions/reindex.sh \
      ./actions/reindex_chainstate.sh \
      ./actions/prioritise-transaction.sh \

actions/getbalance.sh

@@ -0,0 +1,27 @@
+#!/bin/sh
+
+set -e
+
+if ! bitcoin-cli listwalletdir | jq -e '.wallets[] | select(.name == "coin")' &> /dev/null; then
+	bitcoin-cli createwallet "coin" &> /dev/null
+fi
+
+if ! bitcoin-cli getwalletinfo &> /dev/null; then
+    bitcoin-cli loadwallet coin &> /dev/null
+fi
+
+TRUSTED=$(bitcoin-cli getbalances | jq -r '.mine.trusted')
+UNTRUSTED=$(bitcoin-cli getbalances | jq -r '.mine.untrusted_pending')
+IMMATURE=$(bitcoin-cli getbalances | jq -r '.mine.immature')
+
+result="    {
+    \"version\": \"0\",
+    \"message\": \"Your wallet balance: $TRUSTED BTC.
+    Non confirmed balance: $UNTRUSTED BTC.
+    Immanture balance from mining: $IMMATURE BTC.\",
+    \"value\": null,
+    \"copyable\": true,
+    \"qr\": false
+}"
+
+echo $result

manifest.yaml

@@ -240,6 +240,21 @@ actions:
       mounts:
         main: /root/.bitcoin
       inject: true
+  getbalance:
+    name: "Get wallet balance"
+    description: "Get wallet balance."
+    allowed-statuses:
+      - running
+    implementation:
+      type: docker
+      image: main
+      system: false
+      entrypoint: getbalance.sh
+      args: []
+      io-format: json
+      mounts:
+        main: /root/.bitcoin
+      inject: true
 migrations:
   from:
     "*":