/**
 * This code was AUTOGENERATED using the Codama library.
 * Please DO NOT EDIT THIS FILE, instead use visitors
 * to add features, then rerun Codama to update it.
 *
 * @see https://github.com/codama-idl/codama
 */

import {
    combineCodec,
    getStructDecoder,
    getStructEncoder,
    getU8Decoder,
    getU8Encoder,
    SOLANA_ERROR__PROGRAM_CLIENTS__INSUFFICIENT_ACCOUNT_METAS,
    SolanaError,
    transformEncoder,
    type AccountMeta,
    type AccountSignerMeta,
    type Address,
    type FixedSizeCodec,
    type FixedSizeDecoder,
    type FixedSizeEncoder,
    type Instruction,
    type InstructionWithAccounts,
    type InstructionWithData,
    type ReadonlySignerAccount,
    type ReadonlyUint8Array,
    type TransactionSigner,
    type WritableAccount,
} from '@solana/kit';
import { getAccountMetaFactory, type ResolvedInstructionAccount } from '@solana/program-client-core';
import { PAYMENT_CHANNELS_PROGRAM_ADDRESS } from '../programs/index.js';

export const REQUEST_CLOSE_DISCRIMINATOR = 5;

export function getRequestCloseDiscriminatorBytes(): ReadonlyUint8Array {
    return getU8Encoder().encode(REQUEST_CLOSE_DISCRIMINATOR);
}

export type RequestCloseInstruction<
    TProgram extends string = typeof PAYMENT_CHANNELS_PROGRAM_ADDRESS,
    TAccountPayer extends string | AccountMeta<string> = string,
    TAccountChannel extends string | AccountMeta<string> = string,
    TRemainingAccounts extends readonly AccountMeta<string>[] = [],
> = Instruction<TProgram> &
    InstructionWithData<ReadonlyUint8Array> &
    InstructionWithAccounts<
        [
            TAccountPayer extends string
                ? ReadonlySignerAccount<TAccountPayer> & AccountSignerMeta<TAccountPayer>
                : TAccountPayer,
            TAccountChannel extends string ? WritableAccount<TAccountChannel> : TAccountChannel,
            ...TRemainingAccounts,
        ]
    >;

export type RequestCloseInstructionData = { discriminator: number };

export type RequestCloseInstructionDataArgs = {};

export function getRequestCloseInstructionDataEncoder(): FixedSizeEncoder<RequestCloseInstructionDataArgs> {
    return transformEncoder(getStructEncoder([['discriminator', getU8Encoder()]]), value => ({
        ...value,
        discriminator: REQUEST_CLOSE_DISCRIMINATOR,
    }));
}

export function getRequestCloseInstructionDataDecoder(): FixedSizeDecoder<RequestCloseInstructionData> {
    return getStructDecoder([['discriminator', getU8Decoder()]]);
}

export function getRequestCloseInstructionDataCodec(): FixedSizeCodec<
    RequestCloseInstructionDataArgs,
    RequestCloseInstructionData
> {
    return combineCodec(getRequestCloseInstructionDataEncoder(), getRequestCloseInstructionDataDecoder());
}

export type RequestCloseInput<TAccountPayer extends string = string, TAccountChannel extends string = string> = {
    payer: TransactionSigner<TAccountPayer>;
    channel: Address<TAccountChannel>;
};

export function getRequestCloseInstruction<
    TAccountPayer extends string,
    TAccountChannel extends string,
    TProgramAddress extends Address = typeof PAYMENT_CHANNELS_PROGRAM_ADDRESS,
>(
    input: RequestCloseInput<TAccountPayer, TAccountChannel>,
    config?: { programAddress?: TProgramAddress },
): RequestCloseInstruction<TProgramAddress, TAccountPayer, TAccountChannel> {
    // Program address.
    const programAddress = config?.programAddress ?? PAYMENT_CHANNELS_PROGRAM_ADDRESS;

    // Original accounts.
    const originalAccounts = {
        payer: { value: input.payer ?? null, isWritable: false },
        channel: { value: input.channel ?? null, isWritable: true },
    };
    const accounts = originalAccounts as Record<keyof typeof originalAccounts, ResolvedInstructionAccount>;

    const getAccountMeta = getAccountMetaFactory(programAddress, 'programId');
    return Object.freeze({
        accounts: [getAccountMeta('payer', accounts.payer), getAccountMeta('channel', accounts.channel)],
        data: getRequestCloseInstructionDataEncoder().encode({}),
        programAddress,
    } as RequestCloseInstruction<TProgramAddress, TAccountPayer, TAccountChannel>);
}

export type ParsedRequestCloseInstruction<
    TProgram extends string = typeof PAYMENT_CHANNELS_PROGRAM_ADDRESS,
    TAccountMetas extends readonly AccountMeta[] = readonly AccountMeta[],
> = {
    programAddress: Address<TProgram>;
    accounts: {
        payer: TAccountMetas[0];
        channel: TAccountMetas[1];
    };
    data: RequestCloseInstructionData;
};

export function parseRequestCloseInstruction<TProgram extends string, TAccountMetas extends readonly AccountMeta[]>(
    instruction: Instruction<TProgram> &
        InstructionWithAccounts<TAccountMetas> &
        InstructionWithData<ReadonlyUint8Array>,
): ParsedRequestCloseInstruction<TProgram, TAccountMetas> {
    if (instruction.accounts.length < 2) {
        throw new SolanaError(SOLANA_ERROR__PROGRAM_CLIENTS__INSUFFICIENT_ACCOUNT_METAS, {
            actualAccountMetas: instruction.accounts.length,
            expectedAccountMetas: 2,
        });
    }
    let accountIndex = 0;
    const getNextAccount = () => {
        const accountMeta = (instruction.accounts as TAccountMetas)[accountIndex]!;
        accountIndex += 1;
        return accountMeta;
    };
    return {
        programAddress: instruction.programAddress,
        accounts: { payer: getNextAccount(), channel: getNextAccount() },
        data: getRequestCloseInstructionDataDecoder().decode(instruction.data),
    };
}