/**
 * 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,
    getU32Decoder,
    getU32Encoder,
    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 ReadonlyAccount,
    type ReadonlySignerAccount,
    type ReadonlyUint8Array,
    type TransactionSigner,
    type WritableAccount,
} from '@solana/kit';
import { getAccountMetaFactory, type ResolvedInstructionAccount } from '@solana/kit/program-client-core';
import { LOADER_V3_PROGRAM_ADDRESS } from '../programs';

export const CLOSE_DISCRIMINATOR = 5;

export function getCloseDiscriminatorBytes(): ReadonlyUint8Array {
    return getU32Encoder().encode(CLOSE_DISCRIMINATOR);
}

export type CloseInstruction<
    TProgram extends string = typeof LOADER_V3_PROGRAM_ADDRESS,
    TAccountBufferOrProgramDataAccount extends string | AccountMeta<string> = string,
    TAccountDestinationAccount extends string | AccountMeta<string> = string,
    TAccountAuthority extends string | AccountMeta<string> = string,
    TAccountProgramAccount extends string | AccountMeta<string> = string,
    TRemainingAccounts extends readonly AccountMeta<string>[] = [],
> = Instruction<TProgram> &
    InstructionWithData<ReadonlyUint8Array> &
    InstructionWithAccounts<
        [
            TAccountBufferOrProgramDataAccount extends string
                ? WritableAccount<TAccountBufferOrProgramDataAccount>
                : TAccountBufferOrProgramDataAccount,
            TAccountDestinationAccount extends string
                ? WritableAccount<TAccountDestinationAccount>
                : TAccountDestinationAccount,
            TAccountAuthority extends string
                ? ReadonlySignerAccount<TAccountAuthority> & AccountSignerMeta<TAccountAuthority>
                : TAccountAuthority,
            TAccountProgramAccount extends string ? ReadonlyAccount<TAccountProgramAccount> : TAccountProgramAccount,
            ...TRemainingAccounts,
        ]
    >;

export type CloseInstructionData = { discriminator: number };

export type CloseInstructionDataArgs = {};

export function getCloseInstructionDataEncoder(): FixedSizeEncoder<CloseInstructionDataArgs> {
    return transformEncoder(getStructEncoder([['discriminator', getU32Encoder()]]), value => ({
        ...value,
        discriminator: CLOSE_DISCRIMINATOR,
    }));
}

export function getCloseInstructionDataDecoder(): FixedSizeDecoder<CloseInstructionData> {
    return getStructDecoder([['discriminator', getU32Decoder()]]);
}

export function getCloseInstructionDataCodec(): FixedSizeCodec<CloseInstructionDataArgs, CloseInstructionData> {
    return combineCodec(getCloseInstructionDataEncoder(), getCloseInstructionDataDecoder());
}

export type CloseInput<
    TAccountBufferOrProgramDataAccount extends string = string,
    TAccountDestinationAccount extends string = string,
    TAccountAuthority extends string = string,
    TAccountProgramAccount extends string = string,
> = {
    /** Buffer or ProgramData account to close. */
    bufferOrProgramDataAccount: Address<TAccountBufferOrProgramDataAccount>;
    /** Destination account for reclaimed lamports. */
    destinationAccount: Address<TAccountDestinationAccount>;
    /** Authority (optional). */
    authority?: TransactionSigner<TAccountAuthority>;
    /** Program account (optional). */
    programAccount?: Address<TAccountProgramAccount>;
};

export function getCloseInstruction<
    TAccountBufferOrProgramDataAccount extends string,
    TAccountDestinationAccount extends string,
    TAccountAuthority extends string,
    TAccountProgramAccount extends string,
    TProgramAddress extends Address = typeof LOADER_V3_PROGRAM_ADDRESS,
>(
    input: CloseInput<
        TAccountBufferOrProgramDataAccount,
        TAccountDestinationAccount,
        TAccountAuthority,
        TAccountProgramAccount
    >,
    config?: { programAddress?: TProgramAddress },
): CloseInstruction<
    TProgramAddress,
    TAccountBufferOrProgramDataAccount,
    TAccountDestinationAccount,
    TAccountAuthority,
    TAccountProgramAccount
> {
    // Program address.
    const programAddress = config?.programAddress ?? LOADER_V3_PROGRAM_ADDRESS;

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

    const getAccountMeta = getAccountMetaFactory(programAddress, 'programId');
    return Object.freeze({
        accounts: [
            getAccountMeta('bufferOrProgramDataAccount', accounts.bufferOrProgramDataAccount),
            getAccountMeta('destinationAccount', accounts.destinationAccount),
            getAccountMeta('authority', accounts.authority),
            getAccountMeta('programAccount', accounts.programAccount),
        ],
        data: getCloseInstructionDataEncoder().encode({}),
        programAddress,
    } as CloseInstruction<
        TProgramAddress,
        TAccountBufferOrProgramDataAccount,
        TAccountDestinationAccount,
        TAccountAuthority,
        TAccountProgramAccount
    >);
}

export type ParsedCloseInstruction<
    TProgram extends string = typeof LOADER_V3_PROGRAM_ADDRESS,
    TAccountMetas extends readonly AccountMeta[] = readonly AccountMeta[],
> = {
    programAddress: Address<TProgram>;
    accounts: {
        /** Buffer or ProgramData account to close. */
        bufferOrProgramDataAccount: TAccountMetas[0];
        /** Destination account for reclaimed lamports. */
        destinationAccount: TAccountMetas[1];
        /** Authority (optional). */
        authority?: TAccountMetas[2] | undefined;
        /** Program account (optional). */
        programAccount?: TAccountMetas[3] | undefined;
    };
    data: CloseInstructionData;
};

export function parseCloseInstruction<TProgram extends string, TAccountMetas extends readonly AccountMeta[]>(
    instruction: Instruction<TProgram> &
        InstructionWithAccounts<TAccountMetas> &
        InstructionWithData<ReadonlyUint8Array>,
): ParsedCloseInstruction<TProgram, TAccountMetas> {
    if (instruction.accounts.length < 4) {
        throw new SolanaError(SOLANA_ERROR__PROGRAM_CLIENTS__INSUFFICIENT_ACCOUNT_METAS, {
            actualAccountMetas: instruction.accounts.length,
            expectedAccountMetas: 4,
        });
    }
    let accountIndex = 0;
    const getNextAccount = () => {
        const accountMeta = (instruction.accounts as TAccountMetas)[accountIndex]!;
        accountIndex += 1;
        return accountMeta;
    };
    const getNextOptionalAccount = () => {
        const accountMeta = getNextAccount();
        return accountMeta.address === LOADER_V3_PROGRAM_ADDRESS ? undefined : accountMeta;
    };
    return {
        programAddress: instruction.programAddress,
        accounts: {
            bufferOrProgramDataAccount: getNextAccount(),
            destinationAccount: getNextAccount(),
            authority: getNextOptionalAccount(),
            programAccount: getNextOptionalAccount(),
        },
        data: getCloseInstructionDataDecoder().decode(instruction.data),
    };
}