LaunchLab 曲線規則

GlobalConfig       協議下限      「供應量 >= 10M、銷售率 >= 20%、...」
  └─ PlatformCurveRule   你的規則     「在我的平台上：這些形狀之一」
       └─ 檢查群組    一個形狀     「供應量 = 1B 且募資在 [80, 90] SOL」
            └─ 約束 一個檢查    「(Supply, Eq, 1_000_000_000)」

pub struct ParamConstraint {
    pub field: u8,    // 哪個啟動參數，見下表
    pub op:    u8,    // 0 Eq, 1 Gte (最小值), 2 Lte (最大值), 3 Neq
    pub value: u128,
}

import {
  checkLaunchAgainstCurveRule,
  getPdaPlatformCurveRule,
  LaunchpadCurveRuleBaseTokenProgram,
  LaunchpadCurveRuleField,
  PlatformCurveRule,
} from "@raydium-io/raydium-sdk-v2";
import BN from "bn.js";

const platformConfig = await raydium.launchpad.getPlatformConfig(platformConfigId);

// 在 0 時程式根本不讀取規則，所以沒有什麼要檢查的
if (platformConfig.restrictCurveParam !== 0) {
  const ruleId = getPdaPlatformCurveRule(programId, platformConfigId, configId).publicKey;
  const ruleAccount = await connection.getAccountInfo(ruleId);

  const result = checkLaunchAgainstCurveRule({
    // 當帳戶不存在時為 undefined — 平台沒有為此配置寫規則
    rule: ruleAccount === null ? undefined : PlatformCurveRule.decode(ruleAccount.data),
    context: {
      curveType: globalConfig.curveType,
      migrateType: 1,
      migrateCpmmFeeOn: 0,
      supply: new BN("1000000000000000"),
      totalSellA: new BN("793100000000000"),
      totalFundRaisingB: new BN("85000000000"),
      totalLockedAmount: new BN(0),
      cliffPeriod: new BN(0),
      unlockPeriod: new BN(0),
      baseTokenProgram: LaunchpadCurveRuleBaseTokenProgram.SplToken,
      // 當基礎鑄幣不帶轉帳費擴展時省略 transferFee
      unixTimestamp: new BN(Math.floor(Date.now() / 1000)),
    },
  });

  if (!result.ok) {
    // 每個群組都拒絕了啟動；每個條目列出該群組的所有失敗約束
    for (const group of result.groupFailures) {
      for (const c of group.unsatisfied) {
        console.log(
          `群組 ${group.groupId}: ${LaunchpadCurveRuleField[c.field]} 是 ${c.actual ?? "不可計算"},`,
          `規則想要運算子 ${c.op} ${c.value.toString()}`,
        );
      }
    }
  }
}

import {
  checkCurveRuleGroupWritable,
  LaunchpadCurveRuleField,
  LaunchpadCurveRuleOp,
} from "@raydium-io/raydium-sdk-v2";

const constraints = [
  { field: LaunchpadCurveRuleField.Supply, op: LaunchpadCurveRuleOp.Eq, value: new BN("1000000000000000") },
  { field: LaunchpadCurveRuleField.TotalFundRaisingB, op: LaunchpadCurveRuleOp.Gte, value: new BN("50000000000") },
  { field: LaunchpadCurveRuleField.TotalFundRaisingB, op: LaunchpadCurveRuleOp.Lte, value: new BN("200000000000") },
];

const writable = checkCurveRuleGroupWritable({
  groupId: 0,
  constraints,
  curveType: globalConfig.curveType,
  // 規則已持有的 ID，所以替換群組不會被誤認為添加一個
  existingGroupIds: existingRule?.groups.map((g) => g.groupId) ?? [],
});

// 每個錯誤攜帶交易會失敗的程式錯誤代碼
if (!writable.ok) console.log(writable.errors);