/**
 * 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 Codec,
  type Decoder,
  type Encoder,
  type Instruction,
  type InstructionWithAccounts,
  type InstructionWithData,
  type ReadonlyAccount,
  type ReadonlySignerAccount,
  type ReadonlyUint8Array,
  type TransactionSigner,
  type WritableAccount,
  type WritableSignerAccount,
} from "@solana/kit";
import {
  getAccountMetaFactory,
  type ResolvedInstructionAccount,
} from "@solana/program-client-core";
import { MPL_TOKEN_AUTH_RULES_PROGRAM_ADDRESS } from "../programs/index.ts";
import {
  getValidateArgsDecoder,
  getValidateArgsEncoder,
  type ValidateArgs,
  type ValidateArgsArgs,
} from "../types/index.ts";

export const VALIDATE_DISCRIMINATOR = 1;

export function getValidateDiscriminatorBytes(): ReadonlyUint8Array {
  return getU8Encoder().encode(VALIDATE_DISCRIMINATOR);
}

export type ValidateInstruction<
  TProgram extends string = typeof MPL_TOKEN_AUTH_RULES_PROGRAM_ADDRESS,
  TAccountRuleSetPda extends string | AccountMeta<string> = string,
  TAccountMint extends string | AccountMeta<string> = string,
  TAccountSystemProgram extends string | AccountMeta<string> =
    "11111111111111111111111111111111",
  TAccountPayer extends string | AccountMeta<string> = string,
  TAccountRuleAuthority extends string | AccountMeta<string> = string,
  TAccountRuleSetStatePda extends string | AccountMeta<string> = string,
  TRemainingAccounts extends readonly AccountMeta<string>[] = [],
> = Instruction<TProgram> &
  InstructionWithData<ReadonlyUint8Array> &
  InstructionWithAccounts<
    [
      TAccountRuleSetPda extends string
        ? ReadonlyAccount<TAccountRuleSetPda>
        : TAccountRuleSetPda,
      TAccountMint extends string
        ? ReadonlyAccount<TAccountMint>
        : TAccountMint,
      TAccountSystemProgram extends string
        ? ReadonlyAccount<TAccountSystemProgram>
        : TAccountSystemProgram,
      TAccountPayer extends string
        ? WritableSignerAccount<TAccountPayer> &
            AccountSignerMeta<TAccountPayer>
        : TAccountPayer,
      TAccountRuleAuthority extends string
        ? ReadonlySignerAccount<TAccountRuleAuthority> &
            AccountSignerMeta<TAccountRuleAuthority>
        : TAccountRuleAuthority,
      TAccountRuleSetStatePda extends string
        ? WritableAccount<TAccountRuleSetStatePda>
        : TAccountRuleSetStatePda,
      ...TRemainingAccounts,
    ]
  >;

export type ValidateInstructionData = {
  discriminator: number;
  /** The operation to validate together with its rule payload. */
  validateArgs: ValidateArgs;
};

export type ValidateInstructionDataArgs = {
  /** The operation to validate together with its rule payload. */
  validateArgs: ValidateArgsArgs;
};

export function getValidateInstructionDataEncoder(): Encoder<ValidateInstructionDataArgs> {
  return transformEncoder(
    getStructEncoder([
      ["discriminator", getU8Encoder()],
      ["validateArgs", getValidateArgsEncoder()],
    ]),
    (value) => ({ ...value, discriminator: VALIDATE_DISCRIMINATOR }),
  );
}

export function getValidateInstructionDataDecoder(): Decoder<ValidateInstructionData> {
  return getStructDecoder([
    ["discriminator", getU8Decoder()],
    ["validateArgs", getValidateArgsDecoder()],
  ]);
}

export function getValidateInstructionDataCodec(): Codec<
  ValidateInstructionDataArgs,
  ValidateInstructionData
> {
  return combineCodec(
    getValidateInstructionDataEncoder(),
    getValidateInstructionDataDecoder(),
  );
}

export type ValidateInput<
  TAccountRuleSetPda extends string = string,
  TAccountMint extends string = string,
  TAccountSystemProgram extends string = string,
  TAccountPayer extends string = string,
  TAccountRuleAuthority extends string = string,
  TAccountRuleSetStatePda extends string = string,
> = {
  /** The PDA account where the RuleSet is stored */
  ruleSetPda: Address<TAccountRuleSetPda>;
  /** Mint of token asset */
  mint: Address<TAccountMint>;
  /** System program */
  systemProgram?: Address<TAccountSystemProgram>;
  /** Payer for RuleSet state PDA account */
  payer?: TransactionSigner<TAccountPayer>;
  /** Signing authority for any Rule state updates */
  ruleAuthority?: TransactionSigner<TAccountRuleAuthority>;
  /** The PDA account where any RuleSet state is stored */
  ruleSetStatePda?: Address<TAccountRuleSetStatePda>;
  validateArgs: ValidateInstructionDataArgs["validateArgs"];
};

/**
 * Validates an operation against a stored RuleSet.
 *
 * Normally invoked via CPI by another program (e.g. Token Metadata)
 * to decide whether a token operation is permitted. Returns an error
 * if any rule for the operation fails. When `updateRuleState` is set,
 * stateful rules such as Frequency are advanced and persisted to the
 * rule-set state PDA.
 */
export function getValidateInstruction<
  TAccountRuleSetPda extends string,
  TAccountMint extends string,
  TAccountSystemProgram extends string,
  TAccountPayer extends string,
  TAccountRuleAuthority extends string,
  TAccountRuleSetStatePda extends string,
  TProgramAddress extends Address = typeof MPL_TOKEN_AUTH_RULES_PROGRAM_ADDRESS,
>(
  input: ValidateInput<
    TAccountRuleSetPda,
    TAccountMint,
    TAccountSystemProgram,
    TAccountPayer,
    TAccountRuleAuthority,
    TAccountRuleSetStatePda
  >,
  config?: { programAddress?: TProgramAddress },
): ValidateInstruction<
  TProgramAddress,
  TAccountRuleSetPda,
  TAccountMint,
  TAccountSystemProgram,
  TAccountPayer,
  TAccountRuleAuthority,
  TAccountRuleSetStatePda
> {
  // Program address.
  const programAddress =
    config?.programAddress ?? MPL_TOKEN_AUTH_RULES_PROGRAM_ADDRESS;

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

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

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

  const getAccountMeta = getAccountMetaFactory(programAddress, "programId");
  return Object.freeze({
    accounts: [
      getAccountMeta("ruleSetPda", accounts.ruleSetPda),
      getAccountMeta("mint", accounts.mint),
      getAccountMeta("systemProgram", accounts.systemProgram),
      getAccountMeta("payer", accounts.payer),
      getAccountMeta("ruleAuthority", accounts.ruleAuthority),
      getAccountMeta("ruleSetStatePda", accounts.ruleSetStatePda),
    ],
    data: getValidateInstructionDataEncoder().encode(
      args as ValidateInstructionDataArgs,
    ),
    programAddress,
  } as ValidateInstruction<
    TProgramAddress,
    TAccountRuleSetPda,
    TAccountMint,
    TAccountSystemProgram,
    TAccountPayer,
    TAccountRuleAuthority,
    TAccountRuleSetStatePda
  >);
}

export type ParsedValidateInstruction<
  TProgram extends string = typeof MPL_TOKEN_AUTH_RULES_PROGRAM_ADDRESS,
  TAccountMetas extends readonly AccountMeta[] = readonly AccountMeta[],
> = {
  programAddress: Address<TProgram>;
  accounts: {
    /** The PDA account where the RuleSet is stored */
    ruleSetPda: TAccountMetas[0];
    /** Mint of token asset */
    mint: TAccountMetas[1];
    /** System program */
    systemProgram: TAccountMetas[2];
    /** Payer for RuleSet state PDA account */
    payer?: TAccountMetas[3] | undefined;
    /** Signing authority for any Rule state updates */
    ruleAuthority?: TAccountMetas[4] | undefined;
    /** The PDA account where any RuleSet state is stored */
    ruleSetStatePda?: TAccountMetas[5] | undefined;
  };
  data: ValidateInstructionData;
};

export function parseValidateInstruction<
  TProgram extends string,
  TAccountMetas extends readonly AccountMeta[],
>(
  instruction: Instruction<TProgram> &
    InstructionWithAccounts<TAccountMetas> &
    InstructionWithData<ReadonlyUint8Array>,
): ParsedValidateInstruction<TProgram, TAccountMetas> {
  if (instruction.accounts.length < 6) {
    throw new SolanaError(
      SOLANA_ERROR__PROGRAM_CLIENTS__INSUFFICIENT_ACCOUNT_METAS,
      {
        actualAccountMetas: instruction.accounts.length,
        expectedAccountMetas: 6,
      },
    );
  }
  let accountIndex = 0;
  const getNextAccount = () => {
    const accountMeta = (instruction.accounts as TAccountMetas)[accountIndex]!;
    accountIndex += 1;
    return accountMeta;
  };
  const getNextOptionalAccount = () => {
    const accountMeta = getNextAccount();
    return accountMeta.address === MPL_TOKEN_AUTH_RULES_PROGRAM_ADDRESS
      ? undefined
      : accountMeta;
  };
  return {
    programAddress: instruction.programAddress,
    accounts: {
      ruleSetPda: getNextAccount(),
      mint: getNextAccount(),
      systemProgram: getNextAccount(),
      payer: getNextOptionalAccount(),
      ruleAuthority: getNextOptionalAccount(),
      ruleSetStatePda: getNextOptionalAccount(),
    },
    data: getValidateInstructionDataDecoder().decode(instruction.data),
  };
}