/**
 * 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 ReadonlyUint8Array,
  type TransactionSigner,
  type WritableAccount,
  type WritableSignerAccount,
} from "@solana/kit";
import { FARMS_PROGRAM_ADDRESS } from "../programs";
import { getAccountMetaFactory, type ResolvedAccount } from "../shared";

export const UPDATE_FARM_ADMIN_DISCRIMINATOR = new Uint8Array([
  20, 37, 136, 19, 122, 239, 36, 130,
]);

export function getUpdateFarmAdminDiscriminatorBytes() {
  return fixEncoderSize(getBytesEncoder(), 8).encode(
    UPDATE_FARM_ADMIN_DISCRIMINATOR,
  );
}

export type UpdateFarmAdminInstruction<
  TProgram extends string = typeof FARMS_PROGRAM_ADDRESS,
  TAccountPendingFarmAdmin extends string | AccountMeta<string> = string,
  TAccountFarmState extends string | AccountMeta<string> = string,
  TRemainingAccounts extends readonly AccountMeta<string>[] = [],
> = Instruction<TProgram> &
  InstructionWithData<ReadonlyUint8Array> &
  InstructionWithAccounts<
    [
      TAccountPendingFarmAdmin extends string
        ? WritableSignerAccount<TAccountPendingFarmAdmin> &
            AccountSignerMeta<TAccountPendingFarmAdmin>
        : TAccountPendingFarmAdmin,
      TAccountFarmState extends string
        ? WritableAccount<TAccountFarmState>
        : TAccountFarmState,
      ...TRemainingAccounts,
    ]
  >;

export type UpdateFarmAdminInstructionData = {
  discriminator: ReadonlyUint8Array;
};

export type UpdateFarmAdminInstructionDataArgs = {};

export function getUpdateFarmAdminInstructionDataEncoder(): FixedSizeEncoder<UpdateFarmAdminInstructionDataArgs> {
  return transformEncoder(
    getStructEncoder([["discriminator", fixEncoderSize(getBytesEncoder(), 8)]]),
    (value) => ({ ...value, discriminator: UPDATE_FARM_ADMIN_DISCRIMINATOR }),
  );
}

export function getUpdateFarmAdminInstructionDataDecoder(): FixedSizeDecoder<UpdateFarmAdminInstructionData> {
  return getStructDecoder([
    ["discriminator", fixDecoderSize(getBytesDecoder(), 8)],
  ]);
}

export function getUpdateFarmAdminInstructionDataCodec(): FixedSizeCodec<
  UpdateFarmAdminInstructionDataArgs,
  UpdateFarmAdminInstructionData
> {
  return combineCodec(
    getUpdateFarmAdminInstructionDataEncoder(),
    getUpdateFarmAdminInstructionDataDecoder(),
  );
}

export type UpdateFarmAdminInput<
  TAccountPendingFarmAdmin extends string = string,
  TAccountFarmState extends string = string,
> = {
  pendingFarmAdmin: TransactionSigner<TAccountPendingFarmAdmin>;
  farmState: Address<TAccountFarmState>;
};

export function getUpdateFarmAdminInstruction<
  TAccountPendingFarmAdmin extends string,
  TAccountFarmState extends string,
  TProgramAddress extends Address = typeof FARMS_PROGRAM_ADDRESS,
>(
  input: UpdateFarmAdminInput<TAccountPendingFarmAdmin, TAccountFarmState>,
  config?: { programAddress?: TProgramAddress },
): UpdateFarmAdminInstruction<
  TProgramAddress,
  TAccountPendingFarmAdmin,
  TAccountFarmState
> {
  // Program address.
  const programAddress = config?.programAddress ?? FARMS_PROGRAM_ADDRESS;

  // Original accounts.
  const originalAccounts = {
    pendingFarmAdmin: {
      value: input.pendingFarmAdmin ?? null,
      isWritable: true,
    },
    farmState: { value: input.farmState ?? null, isWritable: true },
  };
  const accounts = originalAccounts as Record<
    keyof typeof originalAccounts,
    ResolvedAccount
  >;

  const getAccountMeta = getAccountMetaFactory(programAddress, "programId");
  return Object.freeze({
    accounts: [
      getAccountMeta(accounts.pendingFarmAdmin),
      getAccountMeta(accounts.farmState),
    ],
    data: getUpdateFarmAdminInstructionDataEncoder().encode({}),
    programAddress,
  } as UpdateFarmAdminInstruction<
    TProgramAddress,
    TAccountPendingFarmAdmin,
    TAccountFarmState
  >);
}

export type ParsedUpdateFarmAdminInstruction<
  TProgram extends string = typeof FARMS_PROGRAM_ADDRESS,
  TAccountMetas extends readonly AccountMeta[] = readonly AccountMeta[],
> = {
  programAddress: Address<TProgram>;
  accounts: {
    pendingFarmAdmin: TAccountMetas[0];
    farmState: TAccountMetas[1];
  };
  data: UpdateFarmAdminInstructionData;
};

export function parseUpdateFarmAdminInstruction<
  TProgram extends string,
  TAccountMetas extends readonly AccountMeta[],
>(
  instruction: Instruction<TProgram> &
    InstructionWithAccounts<TAccountMetas> &
    InstructionWithData<ReadonlyUint8Array>,
): ParsedUpdateFarmAdminInstruction<TProgram, TAccountMetas> {
  if (instruction.accounts.length < 2) {
    // 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: {
      pendingFarmAdmin: getNextAccount(),
      farmState: getNextAccount(),
    },
    data: getUpdateFarmAdminInstructionDataDecoder().decode(instruction.data),
  };
}