"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.chainlistSupplement = chainlistSupplement;
exports.etherscanV2Api = etherscanV2Api;
const ethers_1 = require("ethers");
const config_1 = require("./config");
const addressIndex_1 = require("./addressIndex");
const chain138Explorer_1 = require("./chain138Explorer");
const iso20022LogDecode_1 = require("./iso20022LogDecode");
const participantSurfaceLogDecode_1 = require("./participantSurfaceLogDecode");
/** Etherscan V2-shaped envelope for tooling compatibility. */
function ok(result, message = 'OK') {
    return { status: '1', message, result };
}
function err(message, result = null) {
    return { status: '0', message, result };
}
function normalizeAddress(address) {
    try {
        return ethers_1.ethers.getAddress(address);
    }
    catch {
        return ethers_1.ethers.getAddress(address.toLowerCase());
    }
}
function padTopicAddress(address) {
    return ethers_1.ethers.zeroPadValue(normalizeAddress(address), 32);
}
async function blockscoutTxList(address, page, offset) {
    const base = config_1.checkpointIndexerConfig.blockscoutApi.replace(/\/$/, '');
    const url = `${base}/addresses/${normalizeAddress(address)}/transactions?page=${page}&offset=${offset}`;
    const res = await fetch(url);
    if (!res.ok)
        throw new Error(`blockscout ${res.status}`);
    const body = (await res.json());
    return (body.items ?? []).map((tx) => ({
        blockNumber: String(tx.block_number ?? tx.blockNumber ?? ''),
        timeStamp: tx.timestamp
            ? String(Math.floor(new Date(String(tx.timestamp)).getTime() / 1000))
            : '',
        hash: tx.hash,
        from: tx.from?.hash ?? tx.from,
        to: tx.to?.hash ?? tx.to,
        value: String(tx.value ?? '0'),
        gas: String(tx.fee?.gas_used ?? tx.gas_used ?? ''),
        gasPrice: String(tx.gas_price ?? tx.gasPrice ?? '0'),
        isError: tx.status === 'ok' || tx.status === 1 || tx.status === '0x1' ? '0' : '1',
        txreceipt_status: tx.status === 'ok' || tx.status === 1 ? '1' : '0',
        input: tx.raw_input ?? tx.input ?? '0x',
        contractAddress: '',
        cumulativeGasUsed: '',
        confirmations: String(tx.confirmations ?? ''),
    }));
}
async function etherscanV2GetLogs(params, apiKey) {
    const q = new URLSearchParams(params);
    q.set('chainid', '1');
    q.set('module', 'logs');
    q.set('action', 'getLogs');
    if (apiKey)
        q.set('apikey', apiKey);
    const url = `https://api.etherscan.io/v2/api?${q.toString()}`;
    const res = await fetch(url);
    return res.json();
}
function chainlistSupplement(_req, res) {
    const registry = config_1.checkpointIndexerConfig.addressActivityRegistry || null;
    res.json({
        comments: 'Supplemental chainlist for networks absent from official Etherscan V2 chainlist. Not maintained by Etherscan.',
        totalcount: 2,
        result: [
            {
                chainname: 'Defi Oracle Meta Mainnet',
                chainid: '138',
                blockexplorer: 'https://explorer.d-bis.org/',
                apiurl: `${publicBase(_req)}/v2/api?chainid=138`,
                status: 1,
                comment: 'Blockscout native + project attestation shim',
            },
            {
                chainname: 'Ethereum Mainnet (Chain 138 attestation layer)',
                chainid: '1',
                attestationLayer: true,
                blockexplorer: 'https://etherscan.io/',
                apiurl: `${publicBase(_req)}/v2/api?chainid=1&module=chain138mirror`,
                status: 1,
                comment: 'Query mirror/registry logs via chain138mirror module on this shim (not native Etherscan V2 module=account)',
                contracts: {
                    transactionMirror: config_1.checkpointIndexerConfig.legacyMirror,
                    addressActivityRegistry: registry,
                    addressActivityRegistryV2: config_1.checkpointIndexerConfig.addressActivityRegistryV2 || null,
                    iso20022IntakeGateway: config_1.checkpointIndexerConfig.iso20022IntakeGateway || null,
                    checkpointHub: config_1.checkpointIndexerConfig.checkpointProxy || null,
                },
            },
        ],
    });
}
function publicBase(req) {
    const proto = req.headers['x-forwarded-proto'] || req.protocol;
    const host = req.headers['x-forwarded-host'] || req.headers.host || `127.0.0.1:${config_1.checkpointIndexerConfig.port}`;
    return `${proto}://${host}`;
}
async function etherscanV2Api(req, res) {
    const q = req.query;
    const chainid = String(q.chainid ?? '');
    const module = String(q.module ?? '');
    const action = String(q.action ?? '');
    const apiKey = String(q.apikey ?? process.env.ETHERSCAN_API_KEY ?? '');
    if (!chainid) {
        return res.json(err('Missing or unsupported chainid parameter (required for v2 api), please see chainlist-supplement for Chain 138'));
    }
    try {
        if (chainid === '138') {
            return res.json(await handleChain138(module, action, q));
        }
        if (chainid === '1' && module === 'chain138mirror') {
            return res.json(await handleMainnetAttestation(action, q, apiKey));
        }
        if (chainid === '1' && module === 'proxy') {
            return res.json(err('Use official https://api.etherscan.io/v2/api for chainid=1 proxy module'));
        }
        return res.json(err(`Chain ${chainid} is not served by this shim. Chain 138 native: chainid=138. Chain 138 on mainnet attestation: chainid=1&module=chain138mirror`));
    }
    catch (e) {
        return res.json(err(String(e)));
    }
}
async function handleChain138(module, action, q) {
    const address = String(q.address ?? '');
    if (module === 'account' && action === 'balance') {
        if (!/^0x[a-fA-F0-9]{40}$/.test(address))
            return err('Invalid address');
        const provider = new ethers_1.ethers.JsonRpcProvider(config_1.checkpointIndexerConfig.chain138Rpc);
        const bal = await provider.getBalance(normalizeAddress(address));
        return ok(bal.toString());
    }
    if (module === 'account' && action === 'txlist') {
        if (!/^0x[a-fA-F0-9]{40}$/.test(address))
            return err('Invalid address');
        const page = parseInt(String(q.page ?? '1'), 10) || 1;
        const offset = Math.min(parseInt(String(q.offset ?? '10'), 10) || 10, 100);
        const items = await blockscoutTxList(normalizeAddress(address), page, offset);
        return ok(items);
    }
    if (module === 'chain138' && action === 'attestation') {
        const txHash = String(q.txhash ?? q.txHash ?? '');
        if (!/^0x[a-fA-F0-9]{64}$/.test(txHash))
            return err('Invalid txhash');
        const base = publicBaseFromQuery(q);
        const r = await fetch(`${base}/v1/tx/${txHash}/attestation`);
        if (!r.ok)
            return err('attestation not found');
        return ok(await r.json());
    }
    if (module === 'chain138' && action === 'participantactivity') {
        if (!/^0x[a-fA-F0-9]{40}$/.test(address))
            return err('Invalid address');
        const normalized = normalizeAddress(address);
        const index = (0, addressIndex_1.buildAddressIndex)(config_1.checkpointIndexerConfig.batchPayloadDir);
        const { total, items } = (0, addressIndex_1.getAddressTransactions)(index, normalized, Math.min(parseInt(String(q.offset ?? '50'), 10) || 50, 200), parseInt(String(q.page ?? '0'), 10) || 0);
        const summary = (0, addressIndex_1.summarizeAddressActivity)(index.byAddress[normalized.toLowerCase()] ?? []);
        const onChainHint = total === 0 && config_1.checkpointIndexerConfig.addressActivityRegistry
            ? {
                registry: config_1.checkpointIndexerConfig.addressActivityRegistry,
                query: 'GET /v2/api?chainid=1&module=chain138mirror&action=participantlogs&address=' +
                    normalized,
            }
            : null;
        return ok({ total, summary, items, onChainHint });
    }
    if (module === 'proxy' && action === 'eth_blockNumber') {
        const provider = new ethers_1.ethers.JsonRpcProvider(config_1.checkpointIndexerConfig.chain138Rpc);
        const block = await provider.getBlockNumber();
        return ok(`0x${block.toString(16)}`);
    }
    return err(`Unsupported module/action for chainid=138: ${module}/${action}`);
}
function publicBaseFromQuery(q) {
    const override = String(q.indexerBase ?? process.env.CHECKPOINT_PAYLOAD_PUBLIC_URL ?? '');
    if (override.startsWith('http'))
        return override.replace(/\/v1\/payload\/?$/, '').replace(/\/$/, '');
    return `http://127.0.0.1:${config_1.checkpointIndexerConfig.port}`;
}
async function handleMainnetAttestation(action, q, apiKey) {
    const registry = config_1.checkpointIndexerConfig.addressActivityRegistry;
    const mirror = config_1.checkpointIndexerConfig.legacyMirror;
    const address = String(q.address ?? '');
    if (action === 'contracts') {
        const explorerBase = (0, chain138Explorer_1.chain138ExplorerBase)();
        return ok({
            transactionMirror: mirror,
            addressActivityRegistry: registry || null,
            checkpointHub: config_1.checkpointIndexerConfig.checkpointProxy || null,
            chain138Explorer: {
                base: explorerBase,
                txUrlTemplate: `${explorerBase}/tx/{txHash}`,
            },
            eventTopics: {
                TransactionMirrored: '0xc25ce5062c7e42c68fa21fe088d21e609cc0c61b8bec3180681363bb5cf02a9e',
                ParticipantCredited: '0x853ebad0824f583553bcb4360a0df947d39654e86aba8d7c0625499cbf09f0d5',
                ParticipantDebited: '0xf122cad7c8ada37ddd6b6ddca0982b9f7be689cde15eedfd767cc207fa7dc2c8',
            },
        });
    }
    if (action === 'participantlogs') {
        if (!registry && !config_1.checkpointIndexerConfig.addressActivityRegistryV2) {
            return err('ADDRESS_ACTIVITY_REGISTRY_MAINNET or V2 not configured');
        }
        if (!/^0x[a-fA-F0-9]{40}$/.test(address))
            return err('Invalid address');
        if (!apiKey)
            return err('ETHERSCAN_API_KEY required for mainnet log proxy');
        const topic = padTopicAddress(address);
        const params = new URLSearchParams({
            fromBlock: String(q.fromBlock ?? '0'),
            toBlock: String(q.toBlock ?? 'latest'),
        });
        let credited = { status: '0', message: 'No records', result: [] };
        let debited = { status: '0', message: 'No records', result: [] };
        if (registry) {
            const regParams = new URLSearchParams([...params.entries(), ['address', registry]]);
            credited = await etherscanV2GetLogs(new URLSearchParams([
                ...regParams.entries(),
                ['topic0', '0x853ebad0824f583553bcb4360a0df947d39654e86aba8d7c0625499cbf09f0d5'],
                ['topic2', topic],
            ]), apiKey);
            debited = await etherscanV2GetLogs(new URLSearchParams([
                ...regParams.entries(),
                ['topic0', '0xf122cad7c8ada37ddd6b6ddca0982b9f7be689cde15eedfd767cc207fa7dc2c8'],
                ['topic3', topic],
            ]), apiKey);
        }
        let surfaceNotify = null;
        if (config_1.checkpointIndexerConfig.participantSurface) {
            const surfaceRaw = await etherscanV2GetLogs(new URLSearchParams([
                ...params.entries(),
                ['address', config_1.checkpointIndexerConfig.participantSurface],
                ['topic0', participantSurfaceLogDecode_1.CHAIN138_ACTIVITY_NOTIFIED_TOPIC0],
                ['topic1', topic],
            ]), apiKey);
            const surfaceEnv = surfaceRaw;
            surfaceNotify = {
                status: surfaceEnv.status,
                result: surfaceEnv.result ?? [],
                decoded: (0, participantSurfaceLogDecode_1.decodeChain138ActivityNotifiedLogs)(surfaceEnv, (0, chain138Explorer_1.chain138ExplorerBase)()),
            };
        }
        let isoV2 = null;
        if (config_1.checkpointIndexerConfig.addressActivityRegistryV2) {
            const v2raw = await etherscanV2GetLogs(new URLSearchParams([
                ...params.entries(),
                ['address', config_1.checkpointIndexerConfig.addressActivityRegistryV2],
                ['topic0', iso20022LogDecode_1.PAYMENT_ATTESTED_TOPIC0],
                ['topic3', topic],
            ]), apiKey);
            const v2env = v2raw;
            isoV2 = {
                status: v2env.status,
                result: v2env.result ?? [],
                decoded: (0, iso20022LogDecode_1.decodePaymentAttestedLogs)(v2env, (0, chain138Explorer_1.chain138ExplorerBase)()),
            };
        }
        return ok({
            participant: normalizeAddress(address),
            registry: registry || null,
            registryV2: config_1.checkpointIndexerConfig.addressActivityRegistryV2 || null,
            participantSurface: config_1.checkpointIndexerConfig.participantSurface || null,
            credited: (0, chain138Explorer_1.enrichRegistryLogsEnvelope)(credited),
            debited: (0, chain138Explorer_1.enrichRegistryLogsEnvelope)(debited),
            surfaceNotifications: surfaceNotify,
            iso20022V2: isoV2,
            chain138Explorer: {
                base: (0, chain138Explorer_1.chain138ExplorerBase)(),
                txUrlTemplate: `${(0, chain138Explorer_1.chain138ExplorerBase)()}/tx/{txHash}`,
            },
            topicIndex: {
                ParticipantCredited: { chain138TxHash: 'topic1', participant: 'topic2', counterparty: 'topic3' },
                ParticipantDebited: { chain138TxHash: 'topic1', counterparty: 'topic2', participant: 'topic3' },
                PaymentAttested: { chain138TxHash: 'topic1', instructionId: 'topic2', creditor: 'topic3' },
                Chain138ActivityNotified: {
                    participant: 'topic1',
                    chain138TxHash: 'topic2',
                    instructionId: 'topic3',
                },
            },
            etherscanVisibility: {
                transactionsTab: 'Set CHECKPOINT_SURFACE_TOPLEVEL_ZERO_ETH=1 on aggregator for incoming 0 ETH txs to participant',
                internalTxnsTab: 'Chain138ParticipantSurface wallet touch (walletTouchEnabled)',
                eventsOnSurfaceContract: 'surfaceNotifications.decoded[] with chain138ExplorerUrl',
            },
            note: 'credited/debited.decoded[], surfaceNotifications.decoded[], and iso20022V2.decoded[] include chain138ExplorerUrl. Full pacs.008 XML in batch payloads and config/iso20022-omnl/messages.',
        });
    }
    if (action === 'mirrorlogs') {
        if (!/^0x[a-fA-F0-9]{64}$/.test(String(q.txhash ?? '')))
            return err('Invalid txhash');
        if (!apiKey)
            return err('ETHERSCAN_API_KEY required');
        const txHash = String(q.txhash);
        const params = new URLSearchParams({
            address: mirror,
            fromBlock: String(q.fromBlock ?? '0'),
            toBlock: String(q.toBlock ?? 'latest'),
            topic0: '0xc25ce5062c7e42c68fa21fe088d21e609cc0c61b8bec3180681363bb5cf02a9e',
            topic1: txHash,
        });
        const logs = await etherscanV2GetLogs(params, apiKey);
        return ok(logs);
    }
    return err(`Unsupported chain138mirror action: ${action}`);
}