Line data Source code
1 : import 'dart:typed_data';
2 : import 'package:walletkit_dart/src/crypto/evm/entities/block_number.dart';
3 : import 'package:walletkit_dart/walletkit_dart.dart';
4 :
5 6 : final contractAbiErc20 = ContractABI.fromAbi('''[
6 : {
7 : "constant": true,
8 : "inputs": [],
9 : "name": "name",
10 : "outputs": [
11 : {
12 : "name": "",
13 : "type": "string"
14 : }
15 : ],
16 : "payable": false,
17 : "stateMutability": "view",
18 : "type": "function"
19 : },
20 : {
21 : "constant": false,
22 : "inputs": [
23 : {
24 : "name": "_spender",
25 : "type": "address"
26 : },
27 : {
28 : "name": "_value",
29 : "type": "uint256"
30 : }
31 : ],
32 : "name": "approve",
33 : "outputs": [
34 : {
35 : "name": "",
36 : "type": "bool"
37 : }
38 : ],
39 : "payable": false,
40 : "stateMutability": "nonpayable",
41 : "type": "function"
42 : },
43 : {
44 : "constant": true,
45 : "inputs": [],
46 : "name": "totalSupply",
47 : "outputs": [
48 : {
49 : "name": "",
50 : "type": "uint256"
51 : }
52 : ],
53 : "payable": false,
54 : "stateMutability": "view",
55 : "type": "function"
56 : },
57 : {
58 : "constant": false,
59 : "inputs": [
60 : {
61 : "name": "_from",
62 : "type": "address"
63 : },
64 : {
65 : "name": "_to",
66 : "type": "address"
67 : },
68 : {
69 : "name": "_value",
70 : "type": "uint256"
71 : }
72 : ],
73 : "name": "transferFrom",
74 : "outputs": [
75 : {
76 : "name": "",
77 : "type": "bool"
78 : }
79 : ],
80 : "payable": false,
81 : "stateMutability": "nonpayable",
82 : "type": "function"
83 : },
84 : {
85 : "constant": true,
86 : "inputs": [],
87 : "name": "decimals",
88 : "outputs": [
89 : {
90 : "name": "",
91 : "type": "uint8"
92 : }
93 : ],
94 : "payable": false,
95 : "stateMutability": "view",
96 : "type": "function"
97 : },
98 : {
99 : "constant": true,
100 : "inputs": [
101 : {
102 : "name": "_owner",
103 : "type": "address"
104 : }
105 : ],
106 : "name": "balanceOf",
107 : "outputs": [
108 : {
109 : "name": "balance",
110 : "type": "uint256"
111 : }
112 : ],
113 : "payable": false,
114 : "stateMutability": "view",
115 : "type": "function"
116 : },
117 : {
118 : "constant": true,
119 : "inputs": [],
120 : "name": "symbol",
121 : "outputs": [
122 : {
123 : "name": "",
124 : "type": "string"
125 : }
126 : ],
127 : "payable": false,
128 : "stateMutability": "view",
129 : "type": "function"
130 : },
131 : {
132 : "constant": false,
133 : "inputs": [
134 : {
135 : "name": "_to",
136 : "type": "address"
137 : },
138 : {
139 : "name": "_value",
140 : "type": "uint256"
141 : }
142 : ],
143 : "name": "transfer",
144 : "outputs": [
145 : {
146 : "name": "",
147 : "type": "bool"
148 : }
149 : ],
150 : "payable": false,
151 : "stateMutability": "nonpayable",
152 : "type": "function"
153 : },
154 : {
155 : "constant": true,
156 : "inputs": [
157 : {
158 : "name": "_owner",
159 : "type": "address"
160 : },
161 : {
162 : "name": "_spender",
163 : "type": "address"
164 : }
165 : ],
166 : "name": "allowance",
167 : "outputs": [
168 : {
169 : "name": "",
170 : "type": "uint256"
171 : }
172 : ],
173 : "payable": false,
174 : "stateMutability": "view",
175 : "type": "function"
176 : },
177 : {
178 : "payable": true,
179 : "stateMutability": "payable",
180 : "type": "fallback"
181 : },
182 : {
183 : "anonymous": false,
184 : "inputs": [
185 : {
186 : "indexed": true,
187 : "name": "owner",
188 : "type": "address"
189 : },
190 : {
191 : "indexed": true,
192 : "name": "spender",
193 : "type": "address"
194 : },
195 : {
196 : "indexed": false,
197 : "name": "value",
198 : "type": "uint256"
199 : }
200 : ],
201 : "name": "Approval",
202 : "type": "event"
203 : },
204 : {
205 : "anonymous": false,
206 : "inputs": [
207 : {
208 : "indexed": true,
209 : "name": "from",
210 : "type": "address"
211 : },
212 : {
213 : "indexed": true,
214 : "name": "to",
215 : "type": "address"
216 : },
217 : {
218 : "indexed": false,
219 : "name": "value",
220 : "type": "uint256"
221 : }
222 : ],
223 : "name": "Transfer",
224 : "type": "event"
225 : }
226 : ]
227 : ''');
228 :
229 : class ERC20Contract extends InternalContract {
230 2 : ERC20Contract({
231 : required super.contractAddress,
232 : required super.rpc,
233 2 : }) : super(
234 2 : abi: contractAbiErc20,
235 : );
236 :
237 0 : Future<String> transfer({
238 : required String sender,
239 : required String to,
240 : required BigInt value,
241 : required Uint8List seed,
242 : EvmFeeInformation? feeInfo,
243 : List<AccessListItem>? accessList,
244 : }) async {
245 0 : final function = abi.functions[7];
246 0 : assert(function.functionSelectorHex == "a9059cbb");
247 0 : return await interact(
248 0 : function: function.addValues(values: [to, value]),
249 : seed: seed,
250 : sender: sender,
251 : feeInfo: feeInfo,
252 : accessList: accessList,
253 : );
254 : }
255 :
256 0 : Future<String> approve({
257 : required String sender,
258 : required String spender,
259 : required BigInt value,
260 : required Uint8List seed,
261 : EvmFeeInformation? feeInfo,
262 : }) async {
263 0 : final function = abi.functions[1];
264 0 : assert(function.functionSelectorHex == "095ea7b3");
265 :
266 0 : return await interact(
267 0 : function: function.addValues(values: [spender, value]),
268 : seed: seed,
269 : sender: sender,
270 : feeInfo: feeInfo,
271 : );
272 : }
273 :
274 0 : Future<RawEvmTransaction> approveTx({
275 : required String sender,
276 : required String spender,
277 : required BigInt value,
278 : EvmFeeInformation? feeInfo,
279 : }) async {
280 0 : final function = abi.functions[1];
281 0 : assert(function.functionSelectorHex == "095ea7b3");
282 :
283 0 : return await buildTransactionForFunction(
284 0 : function: function.addValues(values: [spender, value]),
285 : sender: sender,
286 : feeInfo: feeInfo,
287 : );
288 : }
289 :
290 1 : Future<BigInt> getBalance(String address, {BlockNum? atBlock}) async {
291 3 : final function = abi.functions[5];
292 3 : assert(function.functionSelectorHex == "70a08231");
293 :
294 1 : final response = await readSafe(
295 2 : function: function.addValues(values: [address]),
296 : atBlock: atBlock,
297 : );
298 3 : return response.outputs.first.castValue<BigInt>();
299 : }
300 :
301 1 : Future<String> getName() async {
302 3 : final function = abi.functions[0];
303 3 : assert(function.functionSelectorHex == "06fdde03");
304 :
305 1 : final response = await readSafe(
306 2 : function: function.addValues(values: []),
307 : );
308 :
309 3 : return response.outputs.first.castValue<String>();
310 : }
311 :
312 1 : Future<String> getSymbol() async {
313 3 : final function = abi.functions[6];
314 3 : assert(function.functionSelectorHex == "95d89b41");
315 1 : final response = await readSafe(
316 2 : function: function.addValues(values: []),
317 : );
318 :
319 3 : return response.outputs.first.castValue<String>();
320 : }
321 :
322 1 : Future<BigInt> getSupply() async {
323 3 : final function = abi.functions[2];
324 3 : assert(function.functionSelectorHex == "18160ddd");
325 1 : final response = await readSafe(
326 2 : function: function.addValues(values: []),
327 : );
328 3 : return response.outputs.first.castValue<BigInt>();
329 : }
330 :
331 1 : Future<int> getDecimals() async {
332 3 : final function = abi.functions[4];
333 3 : assert(function.functionSelectorHex == "313ce567");
334 1 : final response = await readSafe(
335 2 : function: function.addValues(values: []),
336 : );
337 4 : return response.outputs.first.castValue<BigInt>().toInt();
338 : }
339 :
340 0 : Future<BigInt> balanceOf({required String address}) async {
341 0 : final function = abi.functions[5];
342 0 : assert(function.functionSelectorHex == "70a08231");
343 0 : final response = await readSafe(
344 0 : function: function.addValues(values: []),
345 : );
346 0 : return response.outputs.first.castValue<BigInt>();
347 : }
348 :
349 0 : Future<BigInt> allowance({
350 : required String owner,
351 : required String spender,
352 : }) async {
353 0 : final function = abi.functions[8];
354 0 : assert(function.functionSelectorHex == "dd62ed3e");
355 0 : final response = await readSafe(
356 0 : function: function.addValues(values: [owner, spender]),
357 : );
358 0 : return response.outputs.first.castValue<BigInt>();
359 : }
360 : }
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