Feat/flat curve

package.json

@@ -1,6 +1,6 @@
 {
   "name": "@wen-moon-ser/moonshot-sdk",
-  "version": "4.0.0-alpha-0.0.2",
+  "version": "4.1.0-alpha-0.0.7",
   "main": "dist/index.js",
   "types": "dist/types/index.d.ts",
   "scripts": {
@@ -32,8 +32,8 @@
     "typescript": "^5.5.2"
   },
   "dependencies": {
-    "@coral-xyz/anchor": "^0.29.0",
-    "@heliofi/launchpad-common": "1.1.2",
+    "@coral-xyz/anchor": "^0.30.1",
+    "@heliofi/launchpad-common": "1.1.6",
     "@solana/spl-token": "0.3.9",
     "@solana/web3.js": "^1.68.0",
     "@types/bn.js": "^5.1.5",

src/domain/model/curve/ConstantProductCurveV2Adapter.ts

@@ -0,0 +1,75 @@
+import {
+  GetCollateralPriceOptions,
+  GetCollateralAmountOptions,
+  GetTokenAmountOptions,
+} from '../token';
+import { GetTokenAmountSyncOptions } from '../token/GetTokenAmountSyncOptions';
+import { AbstractCurveAdapter } from './AbstractCurveAdapter';
+import { ConstantProductCurveV2 } from '@heliofi/launchpad-common';
+import { GetCollateralAmountSyncOptions } from '../token/GetCollateralAmountSyncOptions';
+
+export class ConstantProductCurveV2Adapter extends AbstractCurveAdapter {
+  private readonly platformFeeBps: number = 100;
+
+  private readonly curve = new ConstantProductCurveV2();
+
+  getCollateralPrice(options: GetCollateralPriceOptions): Promise<bigint> {
+    return this.getCollateralAmountByTokens({
+      tokenAmount: options.tokenAmount,
+      tradeDirection: 'BUY',
+      curvePosition: options.curvePosition,
+    });
+  }
+
+  async getCollateralAmountByTokens(
+    options: GetCollateralAmountOptions,
+  ): Promise<bigint> {
+    const curvePosition =
+      options.curvePosition ?? (await this.getCurvePosition());
+
+    return this.curve.getCollateralAmountFromTokens({
+      amount: options.tokenAmount,
+      curvePosition,
+      platformFeeBps: this.platformFeeBps,
+      tradeDirection: options.tradeDirection,
+    });
+  }
+
+  getCollateralAmountByTokensSync(
+    options: GetCollateralAmountSyncOptions,
+  ): bigint {
+    const curvePosition = options.curvePosition;
+
+    return this.curve.getCollateralAmountFromTokens({
+      amount: options.tokenAmount,
+      curvePosition,
+      platformFeeBps: this.platformFeeBps,
+      tradeDirection: options.tradeDirection,
+    });
+  }
+
+  async getTokenAmountByCollateral(
+    options: GetTokenAmountOptions,
+  ): Promise<bigint> {
+    const curvePosition =
+      options.curvePosition ?? (await this.getCurvePosition());
+
+    return this.curve.getTokensAmountFromCollateral({
+      amount: options.collateralAmount,
+      curvePosition,
+      platformFeeBps: this.platformFeeBps,
+      tradeDirection: options.tradeDirection,
+    });
+  }
+
+  getTokenAmountByCollateralSync(options: GetTokenAmountSyncOptions): bigint {
+    const curvePosition = options.curvePosition;
+
+    return this.curve.getTokensAmountFromCollateral({
+      amount: options.collateralAmount,
+      curvePosition,
+      platformFeeBps: this.platformFeeBps,
+      tradeDirection: options.tradeDirection,
+    });
+  }
+}

src/domain/model/curve/CurveAccount.ts

@@ -12,4 +12,6 @@ export interface CurveAccount {
   migrationFee: bigint;
   coefB: number;
   bump: number;
+  migrationTarget: number;
+  priceIncrease: number;
 }

src/domain/model/curve/FlatCurveV1Adapter.ts

@@ -0,0 +1,87 @@
+import {
+  GetCollateralPriceOptions,
+  GetCollateralAmountOptions,
+  GetTokenAmountOptions,
+} from '../token';
+import { GetTokenAmountSyncOptions } from '../token/GetTokenAmountSyncOptions';
+import { AbstractCurveAdapter } from './AbstractCurveAdapter';
+import { FlatCurveV1 } from '@heliofi/launchpad-common';
+import { GetCollateralAmountSyncOptions } from '../token/GetCollateralAmountSyncOptions';
+import { TokenLaunchpadIdl } from '../../../solana';
+import { BaseAnchorProvider } from '../../../solana';
+
+export class FlatCurveV1Adapter extends AbstractCurveAdapter {
+  private readonly platformFeeBps: number = 100;
+
+  private readonly curve: FlatCurveV1;
+
+  constructor(
+    moonshotProgram: BaseAnchorProvider<TokenLaunchpadIdl>,
+    mintAddress: string,
+    collateralCollected: bigint,
+    priceIncrease?: number,
+  ) {
+    super(moonshotProgram, mintAddress);
+    this.curve = new FlatCurveV1(collateralCollected, priceIncrease);
+  }
+
+  getCollateralPrice(options: GetCollateralPriceOptions): Promise<bigint> {
+    return this.getCollateralAmountByTokens({
+      tokenAmount: options.tokenAmount,
+      tradeDirection: 'BUY',
+      curvePosition: options.curvePosition,
+    });
+  }
+
+  async getCollateralAmountByTokens(
+    options: GetCollateralAmountOptions,
+  ): Promise<bigint> {
+    const curvePosition =
+      options.curvePosition ?? (await this.getCurvePosition());
+
+    return this.curve.getCollateralAmountFromTokens({
+      amount: options.tokenAmount,
+      curvePosition,
+      platformFeeBps: this.platformFeeBps,
+      tradeDirection: options.tradeDirection,
+    });
+  }
+
+  getCollateralAmountByTokensSync(
+    options: GetCollateralAmountSyncOptions,
+  ): bigint {
+    const curvePosition = options.curvePosition;
+
+    return this.curve.getCollateralAmountFromTokens({
+      amount: options.tokenAmount,
+      curvePosition,
+      platformFeeBps: this.platformFeeBps,
+      tradeDirection: options.tradeDirection,
+    });
+  }
+
+  async getTokenAmountByCollateral(
+    options: GetTokenAmountOptions,
+  ): Promise<bigint> {
+    const curvePosition =
+      options.curvePosition ?? (await this.getCurvePosition());
+
+    return this.curve.getTokensAmountFromCollateral({
+      amount: options.collateralAmount,
+      curvePosition,
+      platformFeeBps: this.platformFeeBps,
+      tradeDirection: options.tradeDirection,
+    });
+  }
+
+  getTokenAmountByCollateralSync(options: GetTokenAmountSyncOptions): bigint {
+    const curvePosition = options.curvePosition;
+
+    return this.curve.getTokensAmountFromCollateral({
+      amount: options.collateralAmount,
+      curvePosition,
+      platformFeeBps: this.platformFeeBps,
+      tradeDirection: options.tradeDirection,
+    });
+  }
+}

src/domain/model/curve/getCurveAdapter.ts

@@ -4,17 +4,33 @@ import { ContractCurveType } from '@heliofi/launchpad-common';
 import { ConstantProductCurveV1Adapter } from './ConstantProductCurveV1Adapter';
 import { LinearCurveV1Adapter } from './LinearCurveV1Adapter';
 import { BaseAnchorProvider, TokenLaunchpadIdl } from '../../../solana';
+import { FlatCurveV1Adapter } from './FlatCurveV1Adapter';
+import { ConstantProductCurveV2Adapter } from './ConstantProductCurveV2Adapter';
 
 export const getCurveAdapter = (
   curveAccount: CurveAccount,
   programProvider: BaseAnchorProvider<TokenLaunchpadIdl>,
   mintAddress: string,
+  collateralCollected?: bigint,
+  priceIncrease?: number,
 ): AbstractCurveAdapter => {
   switch (curveAccount.curveType) {
     case ContractCurveType.CONSTANT_PRODUCT_V1:
       return new ConstantProductCurveV1Adapter(programProvider, mintAddress);
+    case ContractCurveType.CONSTANT_PRODUCT_V2:
+      return new ConstantProductCurveV2Adapter(programProvider, mintAddress);
     case ContractCurveType.LINEAR_V1:
       return new LinearCurveV1Adapter(programProvider, mintAddress);
+    case ContractCurveType.FLAT_V1:
+      if (!collateralCollected) {
+        throw new Error('Collateral collected is required for flat curve');
+      }
+      return new FlatCurveV1Adapter(
+        programProvider,
+        mintAddress,
+        collateralCollected,
+        priceIncrease,
+      );
     default:
       throw new Error('Unsupported curve type');
   }

src/domain/model/curve/index.ts

@@ -1,4 +1,6 @@
 export * from './CurveAccount';
 export * from './LinearCurveV1Adapter';
 export * from './ConstantProductCurveV1Adapter';
+export * from './ConstantProductCurveV2Adapter';
+export * from './FlatCurveV1Adapter';
 export * from './getCurveAdapter';

src/domain/model/moonshot/PrepareMintTxOptions.ts

@@ -70,4 +70,15 @@ export interface PrepareMintTxOptions {
   affiliate?: {
     wallet: string;
   };
+
+  /**
+   * Percentage increase in price after migration, only for flat curve
+   */
+
+  priceIncrease?: number;
+
+  /**
+   * Amount of collateral collected before migration, only for flat curve
+   */
+  collateralCollected?: string;
 }

src/domain/services/utils.ts

@@ -1,7 +1,3 @@
-import { readFileSync } from 'fs';
-
-export const imagePathToBase64 = (filePath: string): string => {
-  const imageBuffer = readFileSync(filePath);
-
-  return imageBuffer.toString('base64');
+export const imagePathToBase64 = (input: string): string => {
+  return Buffer.from(input).toString('base64'); // TODO: check how to do file without fs so it is browser compatible
 };

src/solana/program/index.ts

@@ -1,12 +1,8 @@
 import { Idl } from '@coral-xyz/anchor';
 import { PublicKey } from '@solana/web3.js';
-import idl from './tokenLaunchpadIdlV1';
+import idl from './tokenLaunchpadIdlV4';
 
-export const programId = new PublicKey(idl.metadata.address);
-export const tokenLaunchpadIdlV1 = idl as TokenLaunchpadIdl;
+export const programId = new PublicKey(idl.address);
+export const tokenLaunchpadIdlV4 = idl as TokenLaunchpadIdl;
 
-export type TokenLaunchpadIdl = Idl & {
-  metadata: {
-    address: string;
-  };
-};
+export type TokenLaunchpadIdl = Idl;