import {PublicKey, SystemProgram, SYSVAR_RENT_PUBKEY, TransactionInstruction,} from '@solana/web3.js';

export const TOKEN_METADATA_PROGRAM_ID = new PublicKey(
    'metaqbxxUerdq28cj1RbAWkYQm3ybzjb6a8bt518x1s',
);
export const SPL_ASSOCIATED_TOKEN_ACCOUNT_PROGRAM_ID = new PublicKey(
    'ATokenGPvbdGVxr1b2hvZbsiqW5xWH25efTNsLJA8knL',
);
export const TOKEN_PROGRAM_ID = new PublicKey(
    'TokenkegQfeZyiNwAJbNbGKPFXCWuBvf9Ss623VQ5DA',
);

export const createAssociatedTokenAccountInstruction = (
    associatedTokenAddress: PublicKey,
    payer: PublicKey,
    walletAddress: PublicKey,
    splTokenMintAddress: PublicKey,
) => {
    const keys = [
        {
            pubkey: payer,
            isSigner: true,
            isWritable: true,
        },
        {
            pubkey: associatedTokenAddress,
            isSigner: false,
            isWritable: true,
        },
        {
            pubkey: walletAddress,
            isSigner: false,
            isWritable: false,
        },
        {
            pubkey: splTokenMintAddress,
            isSigner: false,
            isWritable: false,
        },
        {
            pubkey: SystemProgram.programId,
            isSigner: false,
            isWritable: false,
        },
        {
            pubkey: TOKEN_PROGRAM_ID,
            isSigner: false,
            isWritable: false,
        },
        {
            pubkey: SYSVAR_RENT_PUBKEY,
            isSigner: false,
            isWritable: false,
        },
    ];
    return new TransactionInstruction({
        keys,
        programId: SPL_ASSOCIATED_TOKEN_ACCOUNT_PROGRAM_ID,
        data: Buffer.from([]),
    });
};


export const createMetadataInstruction = (
    metadataAccount: PublicKey,
    mint: PublicKey,
    mintAuthority: PublicKey,
    payer: PublicKey,
    updateAuthority: PublicKey,
    txnData: Buffer,
) => {
    const keys = [
        {
            pubkey: metadataAccount,
            isSigner: false,
            isWritable: true,
        },
        {
            pubkey: mint,
            isSigner: false,
            isWritable: false,
        },
        {
            pubkey: mintAuthority,
            isSigner: true,
            isWritable: false,
        },
        {
            pubkey: payer,
            isSigner: true,
            isWritable: false,
        },
        {
            pubkey: updateAuthority,
            isSigner: false,
            isWritable: false,
        },
        {
            pubkey: SystemProgram.programId,
            isSigner: false,
            isWritable: false,
        },
        {
            pubkey: SYSVAR_RENT_PUBKEY,
            isSigner: false,
            isWritable: false,
        },
    ];
    return new TransactionInstruction({
        keys,
        programId: TOKEN_METADATA_PROGRAM_ID,
        data: txnData,
    });
};

export const createMasterEditionInstruction = (
    metadataAccount: PublicKey,
    editionAccount: PublicKey,
    mint: PublicKey,
    mintAuthority: PublicKey,
    payer: PublicKey,
    updateAuthority: PublicKey,
    txnData: Buffer,
) => {

    const keys = [
        {
            pubkey: editionAccount,
            isSigner: false,
            isWritable: true,
        },
        {
            pubkey: mint,
            isSigner: false,
            isWritable: true,
        },
        {
            pubkey: updateAuthority,
            isSigner: true,
            isWritable: false,
        },
        {
            pubkey: mintAuthority,
            isSigner: true,
            isWritable: false,
        },
        {
            pubkey: payer,
            isSigner: true,
            isWritable: false,
        },
        {
            pubkey: metadataAccount,
            isSigner: false,
            isWritable: false,
        },
        {
            pubkey: TOKEN_PROGRAM_ID,
            isSigner: false,
            isWritable: false,
        },
        {
            pubkey: SystemProgram.programId,
            isSigner: false,
            isWritable: false,
        },
        {
            pubkey: SYSVAR_RENT_PUBKEY,
            isSigner: false,
            isWritable: false,
        },
    ];
    return new TransactionInstruction({
        keys,
        programId: TOKEN_METADATA_PROGRAM_ID,
        data: txnData,
    });
};

export const createUpdateMetadataInstruction = (
    metadataAccount: PublicKey,
    payer: PublicKey,
    txnData: Buffer,
) => {
    const keys = [
        {
            pubkey: metadataAccount,
            isSigner: false,
            isWritable: true,
        },
        {
            pubkey: payer,
            isSigner: true,
            isWritable: false,
        },
    ];
    return new TransactionInstruction({
        keys,
        programId: TOKEN_METADATA_PROGRAM_ID,
        data: txnData,
    });
};