138 lines
3.3 KiB
TypeScript
138 lines
3.3 KiB
TypeScript
import { utf8 } from '@project-serum/anchor/dist/cjs/utils/bytes';
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import { PublicKey } from '@solana/web3.js';
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import bs58 from 'bs58';
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import { MangoClient } from '../client';
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import { I80F48, I80F48Dto } from './I80F48';
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export class Bank {
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public name: string;
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public depositIndex: I80F48;
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public borrowIndex: I80F48;
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static from(
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publicKey: PublicKey,
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obj: {
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name: number[];
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group: PublicKey;
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mint: PublicKey;
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vault: PublicKey;
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oracle: PublicKey;
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depositIndex: I80F48Dto;
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borrowIndex: I80F48Dto;
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indexedTotalDeposits: I80F48Dto;
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indexedTotalBorrows: I80F48Dto;
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maintAssetWeight: I80F48Dto;
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initAssetWeight: I80F48Dto;
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maintLiabWeight: I80F48Dto;
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initLiabWeight: I80F48Dto;
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liquidationFee: I80F48Dto;
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dust: Object;
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tokenIndex: number;
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},
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) {
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return new Bank(
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publicKey,
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obj.name,
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obj.group,
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obj.mint,
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obj.vault,
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obj.oracle,
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obj.depositIndex,
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obj.borrowIndex,
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obj.indexedTotalDeposits,
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obj.indexedTotalBorrows,
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obj.maintAssetWeight,
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obj.initAssetWeight,
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obj.maintLiabWeight,
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obj.initLiabWeight,
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obj.liquidationFee,
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obj.dust,
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obj.tokenIndex,
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);
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}
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constructor(
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public publicKey: PublicKey,
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name: number[],
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public group: PublicKey,
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public mint: PublicKey,
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public vault: PublicKey,
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public oracle: PublicKey,
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depositIndex: I80F48Dto,
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borrowIndex: I80F48Dto,
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indexedTotalDeposits: I80F48Dto,
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indexedTotalBorrows: I80F48Dto,
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maintAssetWeight: I80F48Dto,
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initAssetWeight: I80F48Dto,
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maintLiabWeight: I80F48Dto,
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initLiabWeight: I80F48Dto,
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liquidationFee: I80F48Dto,
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dust: Object,
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public tokenIndex: number,
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) {
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this.name = utf8.decode(new Uint8Array(name)).split('\x00')[0];
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this.depositIndex = I80F48.from(depositIndex);
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this.borrowIndex = I80F48.from(borrowIndex);
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}
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toString(): string {
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return `Bank ${
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this.tokenIndex
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} deposit index - ${this.depositIndex.toNumber()}, borrow index - ${this.borrowIndex.toNumber()}`;
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}
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}
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export class MintInfo {
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static from(
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publicKey: PublicKey,
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obj: {
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mint: PublicKey;
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bank: PublicKey;
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vault: PublicKey;
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oracle: PublicKey;
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addressLookupTable: PublicKey;
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tokenIndex: Number;
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addressLookupTableBankIndex: Number;
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addressLookupTableOracleIndex: Number;
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reserved: unknown;
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},
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) {
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return new MintInfo(publicKey, obj.mint, obj.bank, obj.vault, obj.oracle);
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}
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constructor(
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public publicKey: PublicKey,
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public mint: PublicKey,
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public bank: PublicKey,
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public vault: PublicKey,
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public oracle: PublicKey,
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) {}
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}
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export async function getMintInfoForTokenIndex(
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client: MangoClient,
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groupPk: PublicKey,
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tokenIndex: number,
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): Promise<MintInfo[]> {
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const tokenIndexBuf = Buffer.alloc(2);
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tokenIndexBuf.writeUInt16LE(tokenIndex);
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return (
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await client.program.account.mintInfo.all([
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{
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memcmp: {
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bytes: groupPk.toBase58(),
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offset: 8,
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},
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},
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{
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memcmp: {
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bytes: bs58.encode(tokenIndexBuf),
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offset: 200,
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},
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},
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])
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).map((tuple) => {
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return MintInfo.from(tuple.publicKey, tuple.account);
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});
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}
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