@kamino-finance/kliquidity-sdk
Version:
Typescript SDK for interacting with the Kamino Liquidity (kliquidity) protocol
159 lines • 6.58 kB
JavaScript
"use strict";
var __createBinding = (this && this.__createBinding) || (Object.create ? (function(o, m, k, k2) {
if (k2 === undefined) k2 = k;
var desc = Object.getOwnPropertyDescriptor(m, k);
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}
Object.defineProperty(o, k2, desc);
}) : (function(o, m, k, k2) {
if (k2 === undefined) k2 = k;
o[k2] = m[k];
}));
var __setModuleDefault = (this && this.__setModuleDefault) || (Object.create ? (function(o, v) {
Object.defineProperty(o, "default", { enumerable: true, value: v });
}) : function(o, v) {
o["default"] = v;
});
var __importStar = (this && this.__importStar) || (function () {
var ownKeys = function(o) {
ownKeys = Object.getOwnPropertyNames || function (o) {
var ar = [];
for (var k in o) if (Object.prototype.hasOwnProperty.call(o, k)) ar[ar.length] = k;
return ar;
};
return ownKeys(o);
};
return function (mod) {
if (mod && mod.__esModule) return mod;
var result = {};
if (mod != null) for (var k = ownKeys(mod), i = 0; i < k.length; i++) if (k[i] !== "default") __createBinding(result, mod, k[i]);
__setModuleDefault(result, mod);
return result;
};
})();
Object.defineProperty(exports, "__esModule", { value: true });
exports.PresetParameter = void 0;
/* eslint-disable @typescript-eslint/no-unused-vars */
const kit_1 = require("@solana/kit");
const borsh = __importStar(require("@coral-xyz/borsh")); // eslint-disable-line @typescript-eslint/no-unused-vars
const programId_1 = require("../programId");
class PresetParameter {
/** Bin step. Represent the price increment / decrement. */
binStep;
/** Used for base fee calculation. base_fee_rate = base_factor * bin_step */
baseFactor;
/** Filter period determine high frequency trading time window. */
filterPeriod;
/** Decay period determine when the volatile fee start decay / decrease. */
decayPeriod;
/** Reduction factor controls the volatile fee rate decrement rate. */
reductionFactor;
/** Used to scale the variable fee component depending on the dynamic of the market */
variableFeeControl;
/** Maximum number of bin crossed can be accumulated. Used to cap volatile fee rate. */
maxVolatilityAccumulator;
/** Min bin id supported by the pool based on the configured bin step. */
minBinId;
/** Max bin id supported by the pool based on the configured bin step. */
maxBinId;
/** Portion of swap fees retained by the protocol by controlling protocol_share parameter. protocol_swap_fee = protocol_share * total_swap_fee */
protocolShare;
static discriminator = Buffer.from([
242, 62, 244, 34, 181, 112, 58, 170,
]);
static layout = borsh.struct([
borsh.u16("binStep"),
borsh.u16("baseFactor"),
borsh.u16("filterPeriod"),
borsh.u16("decayPeriod"),
borsh.u16("reductionFactor"),
borsh.u32("variableFeeControl"),
borsh.u32("maxVolatilityAccumulator"),
borsh.i32("minBinId"),
borsh.i32("maxBinId"),
borsh.u16("protocolShare"),
]);
constructor(fields) {
this.binStep = fields.binStep;
this.baseFactor = fields.baseFactor;
this.filterPeriod = fields.filterPeriod;
this.decayPeriod = fields.decayPeriod;
this.reductionFactor = fields.reductionFactor;
this.variableFeeControl = fields.variableFeeControl;
this.maxVolatilityAccumulator = fields.maxVolatilityAccumulator;
this.minBinId = fields.minBinId;
this.maxBinId = fields.maxBinId;
this.protocolShare = fields.protocolShare;
}
static async fetch(rpc, address, programId = programId_1.PROGRAM_ID) {
const info = await (0, kit_1.fetchEncodedAccount)(rpc, address);
if (!info.exists) {
return null;
}
if (info.programAddress !== programId) {
throw new Error("account doesn't belong to this program");
}
return this.decode(Buffer.from(info.data));
}
static async fetchMultiple(rpc, addresses, programId = programId_1.PROGRAM_ID) {
const infos = await (0, kit_1.fetchEncodedAccounts)(rpc, addresses);
return infos.map((info) => {
if (!info.exists) {
return null;
}
if (info.programAddress !== programId) {
throw new Error("account doesn't belong to this program");
}
return this.decode(Buffer.from(info.data));
});
}
static decode(data) {
if (!data.slice(0, 8).equals(PresetParameter.discriminator)) {
throw new Error("invalid account discriminator");
}
const dec = PresetParameter.layout.decode(data.slice(8));
return new PresetParameter({
binStep: dec.binStep,
baseFactor: dec.baseFactor,
filterPeriod: dec.filterPeriod,
decayPeriod: dec.decayPeriod,
reductionFactor: dec.reductionFactor,
variableFeeControl: dec.variableFeeControl,
maxVolatilityAccumulator: dec.maxVolatilityAccumulator,
minBinId: dec.minBinId,
maxBinId: dec.maxBinId,
protocolShare: dec.protocolShare,
});
}
toJSON() {
return {
binStep: this.binStep,
baseFactor: this.baseFactor,
filterPeriod: this.filterPeriod,
decayPeriod: this.decayPeriod,
reductionFactor: this.reductionFactor,
variableFeeControl: this.variableFeeControl,
maxVolatilityAccumulator: this.maxVolatilityAccumulator,
minBinId: this.minBinId,
maxBinId: this.maxBinId,
protocolShare: this.protocolShare,
};
}
static fromJSON(obj) {
return new PresetParameter({
binStep: obj.binStep,
baseFactor: obj.baseFactor,
filterPeriod: obj.filterPeriod,
decayPeriod: obj.decayPeriod,
reductionFactor: obj.reductionFactor,
variableFeeControl: obj.variableFeeControl,
maxVolatilityAccumulator: obj.maxVolatilityAccumulator,
minBinId: obj.minBinId,
maxBinId: obj.maxBinId,
protocolShare: obj.protocolShare,
});
}
}
exports.PresetParameter = PresetParameter;
//# sourceMappingURL=PresetParameter.js.map