Oasis 0.8.7 mobile (nodejs-project baseline)

src/models/wallet_model.js

@@ -0,0 +1,61 @@
+const {
+    RequestManager,
+    HTTPTransport,
+    Client
+} = require("../server/node_modules/@open-rpc/client-js");
+
+async function makeClient(url, user, pass) {
+    const headers = {};
+    if (user !== undefined || pass !== undefined) {
+        headers['Authorization'] = 'Basic ' + Buffer.from(`${user || ''}:${pass || ''}`).toString('base64');
+    }
+    const transport = new HTTPTransport(url, { headers });
+    return new Client(new RequestManager([transport]));
+}
+
+module.exports = {
+    client: async (url, user, pass) => {
+        return makeClient(url, user, pass);
+    },
+    execute: async (url, user, pass, method, params = []) => {
+        try {
+            const clientrpc = await makeClient(url, user, pass);
+            return await clientrpc.request({ method, params });
+        } catch (error) {
+            throw new Error("ECOin wallet disconnected. Check your wallet settings or connection status.");
+        }
+    },
+    getBalance: async (url, user, pass) => {
+        return Number(await module.exports.execute(url, user, pass, "getbalance")) || 0;
+    },
+    getAddress: async (url, user, pass) => {
+        try {
+            const addrs = await module.exports.execute(url, user, pass, "getaddressesbyaccount", [""]);
+            if (Array.isArray(addrs) && addrs.length > 0) return addrs[0];
+        } catch {}
+        try {
+            const addr = await module.exports.execute(url, user, pass, "getnewaddress", [""]);
+            if (typeof addr === "string" && addr) return addr;
+        } catch {}
+        return "";
+    },
+    listTransactions: async (url, user, pass) => {
+        return await module.exports.execute(url, user, pass, "listtransactions", ["", 1000000, 0]);
+    },
+    sendToAddress: async (url, user, pass, address, amount) => {
+        return await module.exports.execute(url, user, pass, "sendtoaddress", [address, Number(amount)]);
+    },
+    validateSend: async (url, user, pass, address, amount, fee) => {
+        let isValid = false;
+        const errors = [];
+        const addrInfo = await module.exports.execute(url, user, pass, "validateaddress", [address]);
+        const addressValid = !!addrInfo?.isvalid;
+        const amountValid = Number(amount) > 0;
+        const feeValid = Number(fee) >= 0;
+        if (!addressValid) errors.push("invalid_dest");
+        if (!amountValid) errors.push("invalid_amount");
+        if (!feeValid) errors.push("invalid_fee");
+        if (errors.length === 0) isValid = true;
+        return { isValid, errors };
+    }
+};