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Merged
merged 4 commits into from
Nov 24, 2025
Merged

feat(dao-contracts): emit events for languages #125

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f22d701
feat(dao-contracts): emit events for languages
jo-elimu Nov 16, 2025
367fa7c
feat(dao-contracts): access control when adding/removing language
jo-elimu Nov 16, 2025
0e92f17
test(dao-contracts): add negative test cases for access control
jo-elimu Nov 24, 2025
a76f078
chore(dao-contracts): deploy to sepolia
jo-elimu Nov 24, 2025
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12 changes: 7 additions & 5 deletions dao-contracts/README.md
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Expand Up @@ -22,22 +22,24 @@ npx istanbul check-coverage --lines 80

## Deployment

### Hardhat
### Hardhat (`localhost`)

```shell
npx hardhat node
```
```shell
npx hardhat ignition deploy ./ignition/modules/ELIMU.ts --network hardhat
npx hardhat ignition deploy ./ignition/modules/gELIMU.ts --network hardhat
npx hardhat ignition deploy ./ignition/modules/Languages.ts --network hardhat
npx hardhat ignition deploy ./ignition/modules/Roles.ts --network hardhat
```

### Sepolia
### Sepolia (Chain ID `11155111`)

```shell
npx hardhat ignition deploy ./ignition/modules/ELIMU.ts --network sepolia --reset --verify
npx hardhat ignition deploy ./ignition/modules/gELIMU.ts --network sepolia --verify
npx hardhat ignition deploy ./ignition/modules/Languages.ts --network sepolia --verify
```

```shell
npx hardhat ignition deploy ./ignition/modules/Roles.ts --network sepolia --verify
```

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20 changes: 20 additions & 0 deletions dao-contracts/contracts/Languages.sol
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Expand Up @@ -5,15 +5,35 @@ import { ILanguages } from "@elimu-ai/dao-contracts/ILanguages.sol";

/// @notice This smart contract stores the languages currently supported by the Ξlimu DAO (see https://github.com/elimu-ai/model).
contract Languages is ILanguages {
address public owner;

/// @notice The ISO 639-2 language code of each language, in upper-case letters. E.g. "ENG" for English.
mapping(string => bool) private languageCodes;

event OwnerUpdated(address);
event LanguageCodeAdded(string);
event LanguageCodeRemoved(string);

constructor() {
owner = msg.sender;
}

function updateOwner(address owner_) public {
require(msg.sender == owner, "Only the current owner can set a new owner");
owner = owner_;
emit OwnerUpdated(owner_);
}

function addSupportedLanguage(string calldata languageCode) external {
require(msg.sender == owner, "Only the current owner can add a language");
languageCodes[languageCode] = true;
emit LanguageCodeAdded(languageCode);
}

function removeSupportedLanguage(string calldata languageCode) external {
require(msg.sender == owner, "Only the current owner can remove a language");
languageCodes[languageCode] = false;
emit LanguageCodeRemoved(languageCode);
}

function isSupportedLanguage(string calldata languageCode) external view returns (bool) {
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10 changes: 6 additions & 4 deletions dao-contracts/hardhat-gas-report.md
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Expand Up @@ -13,19 +13,21 @@
································|·················|···············|·················|················|···············
| Languages · │
································|·················|···············|·················|················|···············
| addSupportedLanguage · - · - · 44,216 · 3 · - │
| addSupportedLanguage · - · - · 48,062 · 4 · - │
································|·················|···············|·················|················|···············
| removeSupportedLanguage · - · - · 22,338 · 1 · - │
| removeSupportedLanguage · - · - · 26,228 · 1 · - │
································|·················|···············|·················|················|···············
| updateOwner · - · - · 27,983 · 3 · - │
································|·················|···············|·················|················|···············
| Lock · │
································|·················|···············|·················|················|···············
| withdraw · - · - · 33,820 · 7 · - │
································|·················|···············|·················|················|···············
| Deployments · · % of limit · │
································|·················|···············|·················|················|···············
| DummyERC20 · 558,532 · 558,676 · 558,604 · 1.9 % · - │
| DummyERC20 · 558,540 · 558,684 · 558,612 · 1.9 % · - │
································|·················|···············|·················|················|···············
| Languages · - · - · 151,721 · 0.5 % · - │
| Languages · - · - · 332,730 · 1.1 % · - │
································|·················|···············|·················|················|···············
| Lock · - · - · 204,541 · 0.7 % · - │
································|·················|···············|·················|················|···············
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75 changes: 63 additions & 12 deletions dao-contracts/ignition/deployments/chain-11155111/artifacts/LanguagesModule#Languages.json
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Expand Up @@ -3,6 +3,50 @@
"contractName": "Languages",
"sourceName": "contracts/Languages.sol",
"abi": [
{
"inputs": [],
"stateMutability": "nonpayable",
"type": "constructor"
},
{
"anonymous": false,
"inputs": [
{
"indexed": false,
"internalType": "string",
"name": "",
"type": "string"
}
],
"name": "LanguageCodeAdded",
"type": "event"
},
{
"anonymous": false,
"inputs": [
{
"indexed": false,
"internalType": "string",
"name": "",
"type": "string"
}
],
"name": "LanguageCodeRemoved",
"type": "event"
},
{
"anonymous": false,
"inputs": [
{
"indexed": false,
"internalType": "address",
"name": "",
"type": "address"
}
],
"name": "OwnerUpdated",
"type": "event"
},
{
"inputs": [
{
Expand Down Expand Up @@ -36,19 +80,13 @@
"type": "function"
},
{
"inputs": [
{
"internalType": "string",
"name": "",
"type": "string"
}
],
"name": "languageCodes",
"inputs": [],
"name": "owner",
"outputs": [
{
"internalType": "bool",
"internalType": "address",
"name": "",
"type": "bool"
"type": "address"
}
],
"stateMutability": "view",
Expand All @@ -66,10 +104,23 @@
"outputs": [],
"stateMutability": "nonpayable",
"type": "function"
},
{
"inputs": [
{
"internalType": "address",
"name": "owner_",
"type": "address"
}
],
"name": "updateOwner",
"outputs": [],
"stateMutability": "nonpayable",
"type": "function"
}
],
"bytecode": "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",
"deployedBytecode": "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",
"bytecode": "0x6080604052348015600f57600080fd5b50600080546001600160a01b031916331790556104a6806100316000396000f3fe608060405234801561001057600080fd5b50600436106100575760003560e01c8063655c50e01461005c57806366ac7d5e14610084578063880cdc31146100995780638da5cb5b146100ac578063b7737701146100d7575b600080fd5b61006f61006a36600461038d565b6100ea565b60405190151581526020015b60405180910390f35b61009761009236600461038d565b610119565b005b6100976100a7366004610401565b6101f9565b6000546100bf906001600160a01b031681565b6040516001600160a01b03909116815260200161007b565b6100976100e536600461038d565b6102ba565b6000600183836040516100fe929190610431565b9081526040519081900360200190205460ff16905092915050565b6000546001600160a01b0316331461018a5760405162461bcd60e51b815260206004820152602960248201527f4f6e6c79207468652063757272656e74206f776e65722063616e206164642061604482015268206c616e677561676560b81b60648201526084015b60405180910390fd5b600180838360405161019d929190610431565b908152604051908190036020018120805492151560ff19909316929092179091557f4b2d80c160e1549f17427a391bef700094a21a5127e049cca43a6bb6916077a3906101ed9084908490610441565b60405180910390a15050565b6000546001600160a01b031633146102665760405162461bcd60e51b815260206004820152602a60248201527f4f6e6c79207468652063757272656e74206f776e65722063616e207365742061604482015269103732bb9037bbb732b960b11b6064820152608401610181565b600080546001600160a01b0319166001600160a01b0383169081179091556040519081527f4ffd725fc4a22075e9ec71c59edf9c38cdeb588a91b24fc5b61388c5be41282b9060200160405180910390a150565b6000546001600160a01b031633146103295760405162461bcd60e51b815260206004820152602c60248201527f4f6e6c79207468652063757272656e74206f776e65722063616e2072656d6f7660448201526b652061206c616e677561676560a01b6064820152608401610181565b60006001838360405161033d929190610431565b908152604051908190036020018120805492151560ff19909316929092179091557f46c668663309029d8cb32030ec6c19be9f2d2b1b25cbd59d53382c932c32c995906101ed9084908490610441565b600080602083850312156103a057600080fd5b823567ffffffffffffffff8111156103b757600080fd5b8301601f810185136103c857600080fd5b803567ffffffffffffffff8111156103df57600080fd5b8560208284010111156103f157600080fd5b6020919091019590945092505050565b60006020828403121561041357600080fd5b81356001600160a01b038116811461042a57600080fd5b9392505050565b8183823760009101908152919050565b60208152816020820152818360408301376000818301604090810191909152601f909201601f1916010191905056fea26469706673582212200ff8bf09e81d66e09ef5163f137da3c4aa4e530b2718e84d7cbf9fa1457e83e264736f6c634300081c0033",
"deployedBytecode": "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",
"linkReferences": {},
"deployedLinkReferences": {}
}
8 changes: 4 additions & 4 deletions dao-contracts/ignition/deployments/chain-11155111/deployed_addresses.json
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@@ -1,6 +1,6 @@
{
"LanguagesModule#Languages": "0x9A3033D2e237376a09d7e19A7479622F8Ae38557",
"ELIMUModule#DummyERC20": "0xf4B2e968d9715Fbc0CD57E306A71036D2023bAD0",
"gELIMUModule#DummyERC20": "0x544096415caD910d528465503655AAcfAAf7deaA",
"RolesModule#Roles": "0x3c32D6016928A83522F8836c80116b7F2b978268"
"ELIMUModule#DummyERC20": "0xFf7b7C3815D84E90CF497dFFCda4E1d36D262Ac1",
"gELIMUModule#DummyERC20": "0x5D1582b1117Af3A0aD3fe23ac6a35d77754D9c23",
"LanguagesModule#Languages": "0x3Ad5e98f590BfEB36371076f6d595A0d3C4cD57e",
"RolesModule#Roles": "0x4f5e980F74286013b9c4583236eBC9dCC3d48009"
}
6 changes: 2 additions & 4 deletions dao-contracts/ignition/modules/Roles.ts
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Expand Up @@ -9,17 +9,15 @@ const RolesModule = buildModule("RolesModule", (m) => {

let elimuAddress = ethers.ZeroAddress;
if (network.name == "sepolia") {
// .../deployments/chain-11155111/deployed_addresses.json
elimuAddress = "0xf4B2e968d9715Fbc0CD57E306A71036D2023bAD0";
elimuAddress = require("../deployments/chain-11155111/deployed_addresses.json")["ELIMUModule#DummyERC20"];
} else if (network.name == "mainnet") {
elimuAddress = "0xe29797910D413281d2821D5d9a989262c8121CC2";
}
console.log("elimuAddress:", elimuAddress);

let gElimuAddress = ethers.ZeroAddress;
if (network.name == "sepolia") {
// .../deployments/chain-11155111/deployed_addresses.json
gElimuAddress = "0x544096415caD910d528465503655AAcfAAf7deaA";
gElimuAddress = require("../deployments/chain-11155111/deployed_addresses.json")["gELIMUModule#DummyERC20"];
} else if (network.name == "mainnet") {
gElimuAddress = "0xBeC06361c9451C8C493e74D6a1Df8428cdce5D53";
}
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