feat:subgraph

subgraph/datasources/diamond.yaml

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+  - kind: ethereum/contract
+    name: {id}
+    network: {chain}
+    source:
+      address: "{address}"
+      abi: BondFacet
+      startBlock: {startBlock}
+    mapping:
+      kind: ethereum/events
+      apiVersion: 0.0.5
+      language: wasm/assemblyscript
+      entities:
+        - BondFacet
+      abis:
+        - name: BondFacet
+          file: {root}/abi/BondFacet.json
+      eventHandlers:
+        - event: BondInitialized(uint256,uint256,uint256,uint256,uint256,uint256,uint256,uint256,uint256,uint256,uint256,uint256,uint256)
+          handler: handleBondInitialized
+        - event: BondParametersEdited(uint256,uint256,uint256,uint256,uint256,uint256,uint256,uint256,uint256,uint256,uint256,uint256,uint256)
+          handler: handleBondParametersEdited
+        - event: CouponsComputed(uint256,uint256[],uint256[],uint256[],uint256[],uint256[])
+          handler: handleCouponsComputed
+        - event: BondIssued(uint256,uint256,uint256)
+          handler: handleBondIssued
+        - event: BondsWithdrawn(string,uint256,address,uint256)
+          handler: handleBondsWithdrawn
+        - event: BalloonRateSet(uint256,uint256,uint256)
+          handler: handleBalloonRateSet
+        - event: GracePeriodSet(uint256,uint256)
+          handler: handleGracePeriodSet
+        - event: CapitalAmortizationFreePeriodSet(uint256,uint256)
+          handler: handleCapitalAmortizationFreePeriodSet
+        - event: InvestorsCountChanged(uint256,uint256)
+          handler: handleInvestorsCountChanged
+        - event: CampaignStartAndEndDateSet(uint256,uint256,uint256)
+          handler: handleCampaignStartAndEndDateSet
+        - event: CampaignPaused(uint256)
+          handler: handleCampaignPaused
+        - event: CampaignUnpaused(uint256)
+          handler: handleCampaignUnpaused
+        - event: MinAndMaxAmountSet(uint256,uint256,uint256,uint256)
+          handler: handleMinAndMaxAmountSet
+        - event: IssueDateSet(uint256,uint256)
+          handler: handleIssueDateSet
+        - event: BondTransferred(string,uint256,address,address,uint256)
+          handler: handleBondTransferred
+        - event: ReservedAmountChanged(uint256,uint256)
+          handler: handleReservedAmountChanged
+        - event: CouponStatusChanged(uint256,uint256)
+          handler: handleCouponStatusChanged
+      file: {file}

subgraph/fetch/account.ts

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+import { Address, Bytes } from '@graphprotocol/graph-ts';
+import { Account } from '../../generated/schema';
+
+export function fetchAccount(address: Address): Account {
+  const account = new Account(Bytes.fromHexString(address.toHex()));
+  account.save();
+  return account;
+}

subgraph/fetch/diamond.ts

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+import { Address, BigDecimal, BigInt } from '@graphprotocol/graph-ts';
+import { Bond, BondFacet, CouponList, Holder, Transfer } from '../../generated/schema';
+import { fetchAccount } from './account';
+
+export function fetchBondFacet(address: Address, facetOffset: string): BondFacet {
+  const account = fetchAccount(address);
+  const contractId = account.id.toHex().concat('/').concat(facetOffset);
+  //let contract = BondFacet.load(account.id.toHex());
+  let contract = BondFacet.load(contractId);
+
+  if (contract == null) {
+    //contract = new BondFacet(account.id.toHex());
+    contract = new BondFacet(contractId);
+    account.asBondFacet = contractId;
+    //account.asBondFacet = contract.id;
+    //contract.asAccount = account.id.toHex();
+
+    contract.save();
+    account.save();
+  }
+
+  return contract as BondFacet;
+}
+
+export function fetchCouponList(contract: BondFacet, bondId: string): CouponList {
+  let couponList = CouponList.load(bondId);
+  if (couponList == null) {
+    couponList = new CouponList(bondId);
+    couponList.contract = contract.id;
+    couponList.remainingCapital = [];
+    couponList.capitalRepayment = [];
+    couponList.grossInterestRate = [];
+    couponList.netInterestRate = [];
+    couponList.grossInterest = [];
+    couponList.netInterest = [];
+    couponList.stepUp = [];
+    couponList.stepDown = [];
+    couponList.fee = [];
+    couponList.capitalAndInterest = [];
+    couponList.couponDate = [];
+    couponList.newCouponDate = [];
+    couponList.feeAmount = [];
+    couponList.status = [];
+    couponList.totalToBeRepaid = BigDecimal.fromString('0');
+    couponList.totalAmountRepaid = BigDecimal.fromString('0');
+    couponList.capitalRepaid = BigDecimal.fromString('0');
+    couponList.interestRepaid = BigDecimal.fromString('0');
+    couponList.interestTotal = BigDecimal.fromString('0');
+    couponList.save();
+  }
+  return couponList as CouponList;
+}
+
+export function fetchHolder(contract: BondFacet, account: Address, bondId: string): Holder {
+  const holderId = account.toString().concat('/').concat(bondId);
+  let holder = Holder.load(holderId);
+
+  if (holder == null) {
+    holder = new Holder(holderId);
+    holder.contract = contract.id;
+    holder.account = account;
+    holder.amount = BigInt.fromString('0');
+    holder.bondId = bondId;
+    holder.dateOfOwnership = BigInt.fromString('0');
+    holder.save();
+  }
+  return holder;
+}
+
+export function fetchTransfer(contract: BondFacet, transferId: string): Transfer {
+  //const transferId = bondId.concat('/').concat(from).concat('/').concat(to).concat('/').concat(timestamp);
+  let transfer = Transfer.load(transferId);
+  if (transfer == null) {
+    transfer = new Transfer(transferId);
+    transfer.bondTransferId = transferId;
+    transfer.contract = contract.id;
+    transfer.bondId = '';
+    transfer.transferDate = BigInt.fromString('0');
+    transfer.amount = BigInt.fromString('0');
+    transfer.save();
+  }
+  return transfer;
+}
+
+export function fetchBond(contract: BondFacet, bondId: string): Bond {
+  let bond = Bond.load(bondId);
+  if (bond == null) {
+    bond = new Bond(bondId);
+    bond.contract = contract.id;
+    bond.coupure = BigInt.fromString('0');
+    bond.grossInterestRate = BigDecimal.fromString('0');
+    bond.netReturn = BigDecimal.fromString('0');
+    bond.withholdingTaxRate = BigDecimal.fromString('0');
+    bond.periodicInterestRate = BigDecimal.fromString('0');
+    bond.holders = [];
+    bond.holdersAmount = [];
+    bond.reservationsByAddresses = [];
+    bond.reservedAmountByAddresses = [];
+    bond.reservedAmount = BigInt.fromString('0');
+    bond.periodicity = '';
+    bond.methodOfRepayment = '';
+    bond.duration = BigInt.fromString('0');
+    bond.gracePeriod = BigInt.fromString('0');
+    bond.balloonPercentage = BigDecimal.fromString('0');
+    bond.capitalAmortizationFreePeriod = BigInt.fromString('0');
+    bond.costEmittent = BigDecimal.fromString('0');
+    bond.investorsCount = BigInt.fromString('0');
+    bond.revocationsCount = BigInt.fromString('0');
+    bond.campaignStartDate = BigInt.fromString('0');
+    bond.campaignEndDate = BigInt.fromString('0');
+    bond.paused = false;
+    bond.maxSupply = BigDecimal.fromString('0');
+    bond.maxAmountPerInvestor = BigDecimal.fromString('0');
+    bond.campaignStartDate = BigInt.fromString('0');
+    bond.campaignEndDate = BigInt.fromString('0');
+    bond.maxAmount = BigInt.fromString('0');
+    bond.minAmount = BigInt.fromString('0');
+    bond.issueDate = BigInt.fromString('0');
+    bond.formOfFinancing = '';
+    bond.status = '';
+    bond.withdrawRef = '';
+    bond.cancelRef = '';
+    bond.terminated = false;
+    bond.isReplacementBond = false;
+    //bond.hashLockCancel =Bytes.fromHexString('');
+    //bond.hashLockWithdraw = Bytes.fromHexString('');
+
+    bond.withdrawStartTime = BigInt.fromString('0');
+    bond.withdrawEndTime = BigInt.fromString('0');
+    bond.cancelStartTime = BigInt.fromString('0');
+    bond.cancelEndTime = BigInt.fromString('0');
+    bond.issuedAmount = BigInt.fromString('0');
+    bond.totalAmountOfAssignedBonds = BigInt.fromString('0');
+    bond.save();
+  }
+  return bond as Bond;
+}

subgraph/package.json

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+{
+  "name": "solidity-token-diamond-bond",
+  "version": "7.0.0",
+  "description": "Solidity Token Diamond Bond",
+  "scripts": {},
+  "keywords": [
+    "solidity",
+    "subgraph"
+  ],
+  "author": "SettleMint <[email protected]>",
+  "license": "MIT",
+  "dependencies": {
+    "@amxx/graphprotocol-utils": "1.1.0",
+    "@graphprotocol/graph-cli": "0.71.0",
+    "@graphprotocol/graph-ts": "0.35.1",
+    "@openzeppelin/contracts": "5.0.2",
+    "@openzeppelin/subgraphs": "0.1.8-5"
+  }
+}

subgraph/tsconfig.json

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+{
+  "extends": "@graphprotocol/graph-ts/types/tsconfig.base.json",
+  "include": [
+    "datasources",
+    "fetch"
+  ]
+}