/**
 * 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,
  fixDecoderSize,
  fixEncoderSize,
  getBytesDecoder,
  getBytesEncoder,
  getStructDecoder,
  getStructEncoder,
  transformEncoder,
  type AccountMeta,
  type AccountSignerMeta,
  type Address,
  type FixedSizeCodec,
  type FixedSizeDecoder,
  type FixedSizeEncoder,
  type Instruction,
  type InstructionWithAccounts,
  type InstructionWithData,
  type ReadonlyAccount,
  type ReadonlyUint8Array,
  type TransactionSigner,
  type WritableAccount,
  type WritableSignerAccount,
} from "@solana/kit";
import { YVAULTS_PROGRAM_ADDRESS } from "../programs";
import { getAccountMetaFactory, type ResolvedAccount } from "../shared";

export const SIGN_TERMS_DISCRIMINATOR = new Uint8Array([
  226, 42, 174, 143, 144, 159, 139, 1,
]);

export function getSignTermsDiscriminatorBytes() {
  return fixEncoderSize(getBytesEncoder(), 8).encode(SIGN_TERMS_DISCRIMINATOR);
}

export type SignTermsInstruction<
  TProgram extends string = typeof YVAULTS_PROGRAM_ADDRESS,
  TAccountOwner extends string | AccountMeta<string> = string,
  TAccountOwnerSignatureState extends string | AccountMeta<string> = string,
  TAccountSystemProgram extends string | AccountMeta<string> =
    "11111111111111111111111111111111",
  TAccountRent extends string | AccountMeta<string> =
    "SysvarRent111111111111111111111111111111111",
  TRemainingAccounts extends readonly AccountMeta<string>[] = [],
> = Instruction<TProgram> &
  InstructionWithData<ReadonlyUint8Array> &
  InstructionWithAccounts<
    [
      TAccountOwner extends string
        ? WritableSignerAccount<TAccountOwner> &
            AccountSignerMeta<TAccountOwner>
        : TAccountOwner,
      TAccountOwnerSignatureState extends string
        ? WritableAccount<TAccountOwnerSignatureState>
        : TAccountOwnerSignatureState,
      TAccountSystemProgram extends string
        ? ReadonlyAccount<TAccountSystemProgram>
        : TAccountSystemProgram,
      TAccountRent extends string
        ? ReadonlyAccount<TAccountRent>
        : TAccountRent,
      ...TRemainingAccounts,
    ]
  >;

export type SignTermsInstructionData = {
  discriminator: ReadonlyUint8Array;
  signature: ReadonlyUint8Array;
};

export type SignTermsInstructionDataArgs = { signature: ReadonlyUint8Array };

export function getSignTermsInstructionDataEncoder(): FixedSizeEncoder<SignTermsInstructionDataArgs> {
  return transformEncoder(
    getStructEncoder([
      ["discriminator", fixEncoderSize(getBytesEncoder(), 8)],
      ["signature", fixEncoderSize(getBytesEncoder(), 64)],
    ]),
    (value) => ({ ...value, discriminator: SIGN_TERMS_DISCRIMINATOR }),
  );
}

export function getSignTermsInstructionDataDecoder(): FixedSizeDecoder<SignTermsInstructionData> {
  return getStructDecoder([
    ["discriminator", fixDecoderSize(getBytesDecoder(), 8)],
    ["signature", fixDecoderSize(getBytesDecoder(), 64)],
  ]);
}

export function getSignTermsInstructionDataCodec(): FixedSizeCodec<
  SignTermsInstructionDataArgs,
  SignTermsInstructionData
> {
  return combineCodec(
    getSignTermsInstructionDataEncoder(),
    getSignTermsInstructionDataDecoder(),
  );
}

export type SignTermsInput<
  TAccountOwner extends string = string,
  TAccountOwnerSignatureState extends string = string,
  TAccountSystemProgram extends string = string,
  TAccountRent extends string = string,
> = {
  owner: TransactionSigner<TAccountOwner>;
  ownerSignatureState: Address<TAccountOwnerSignatureState>;
  systemProgram?: Address<TAccountSystemProgram>;
  rent?: Address<TAccountRent>;
  signature: SignTermsInstructionDataArgs["signature"];
};

export function getSignTermsInstruction<
  TAccountOwner extends string,
  TAccountOwnerSignatureState extends string,
  TAccountSystemProgram extends string,
  TAccountRent extends string,
  TProgramAddress extends Address = typeof YVAULTS_PROGRAM_ADDRESS,
>(
  input: SignTermsInput<
    TAccountOwner,
    TAccountOwnerSignatureState,
    TAccountSystemProgram,
    TAccountRent
  >,
  config?: { programAddress?: TProgramAddress },
): SignTermsInstruction<
  TProgramAddress,
  TAccountOwner,
  TAccountOwnerSignatureState,
  TAccountSystemProgram,
  TAccountRent
> {
  // Program address.
  const programAddress = config?.programAddress ?? YVAULTS_PROGRAM_ADDRESS;

  // Original accounts.
  const originalAccounts = {
    owner: { value: input.owner ?? null, isWritable: true },
    ownerSignatureState: {
      value: input.ownerSignatureState ?? null,
      isWritable: true,
    },
    systemProgram: { value: input.systemProgram ?? null, isWritable: false },
    rent: { value: input.rent ?? null, isWritable: false },
  };
  const accounts = originalAccounts as Record<
    keyof typeof originalAccounts,
    ResolvedAccount
  >;

  // Original args.
  const args = { ...input };

  // Resolve default values.
  if (!accounts.systemProgram.value) {
    accounts.systemProgram.value =
      "11111111111111111111111111111111" as Address<"11111111111111111111111111111111">;
  }
  if (!accounts.rent.value) {
    accounts.rent.value =
      "SysvarRent111111111111111111111111111111111" as Address<"SysvarRent111111111111111111111111111111111">;
  }

  const getAccountMeta = getAccountMetaFactory(programAddress, "programId");
  return Object.freeze({
    accounts: [
      getAccountMeta(accounts.owner),
      getAccountMeta(accounts.ownerSignatureState),
      getAccountMeta(accounts.systemProgram),
      getAccountMeta(accounts.rent),
    ],
    data: getSignTermsInstructionDataEncoder().encode(
      args as SignTermsInstructionDataArgs,
    ),
    programAddress,
  } as SignTermsInstruction<
    TProgramAddress,
    TAccountOwner,
    TAccountOwnerSignatureState,
    TAccountSystemProgram,
    TAccountRent
  >);
}

export type ParsedSignTermsInstruction<
  TProgram extends string = typeof YVAULTS_PROGRAM_ADDRESS,
  TAccountMetas extends readonly AccountMeta[] = readonly AccountMeta[],
> = {
  programAddress: Address<TProgram>;
  accounts: {
    owner: TAccountMetas[0];
    ownerSignatureState: TAccountMetas[1];
    systemProgram: TAccountMetas[2];
    rent: TAccountMetas[3];
  };
  data: SignTermsInstructionData;
};

export function parseSignTermsInstruction<
  TProgram extends string,
  TAccountMetas extends readonly AccountMeta[],
>(
  instruction: Instruction<TProgram> &
    InstructionWithAccounts<TAccountMetas> &
    InstructionWithData<ReadonlyUint8Array>,
): ParsedSignTermsInstruction<TProgram, TAccountMetas> {
  if (instruction.accounts.length < 4) {
    // TODO: Coded error.
    throw new Error("Not enough accounts");
  }
  let accountIndex = 0;
  const getNextAccount = () => {
    const accountMeta = (instruction.accounts as TAccountMetas)[accountIndex]!;
    accountIndex += 1;
    return accountMeta;
  };
  return {
    programAddress: instruction.programAddress,
    accounts: {
      owner: getNextAccount(),
      ownerSignatureState: getNextAccount(),
      systemProgram: getNextAccount(),
      rent: getNextAccount(),
    },
    data: getSignTermsInstructionDataDecoder().decode(instruction.data),
  };
}