/**
 *** Copyright (c) 2016-2019, Jaguar0625, gimre, BloodyRookie, Tech Bureau, Corp.
 *** Copyright (c) 2020-present, Jaguar0625, gimre, BloodyRookie.
 *** All rights reserved.
 ***
 *** This file is part of Catapult.
 ***
 *** Catapult is free software: you can redistribute it and/or modify
 *** it under the terms of the GNU Lesser General Public License as published by
 *** the Free Software Foundation, either version 3 of the License, or
 *** (at your option) any later version.
 ***
 *** Catapult is distributed in the hope that it will be useful,
 *** but WITHOUT ANY WARRANTY; without even the implied warranty of
 *** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 *** GNU Lesser General Public License for more details.
 ***
 *** You should have received a copy of the GNU Lesser General Public License
 *** along with Catapult. If not, see <http://www.gnu.org/licenses/>.
 **/

import { AmountDto } from './AmountDto';
import { GeneratorUtils } from './GeneratorUtils';
import { MosaicIdDto } from './MosaicIdDto';
import { Serializer } from './Serializer';

/**
 * A quantity of a certain mosaic.
 **/
export class MosaicBuilder implements Serializer {
    /** Mosaic identifier.. **/
    readonly mosaicId: MosaicIdDto;

    /** Mosaic amount.. **/
    readonly amount: AmountDto;

    /**
     * Constructor.
     *
     * @param mosaicId Mosaic identifier..
     * @param amount Mosaic amount..
     */
    public constructor(mosaicId: MosaicIdDto, amount: AmountDto) {
        GeneratorUtils.notNull(mosaicId, 'mosaicId is null or undefined');
        GeneratorUtils.notNull(amount, 'amount is null or undefined');
        this.mosaicId = mosaicId;
        this.amount = amount;
    }

    /**
     * Load from binary array - Creates an object from payload.
     *
     * @param payload - Byte payload to use to serialize the object.
     */

    public static loadFromBinary(payload: Uint8Array): MosaicBuilder {
        const byteArray = Array.from(payload);
        const mosaicId: MosaicIdDto = MosaicIdDto.loadFromBinary(Uint8Array.from(byteArray));
        byteArray.splice(0, mosaicId.getSize());
        const amount: AmountDto = AmountDto.loadFromBinary(Uint8Array.from(byteArray));
        byteArray.splice(0, amount.getSize());
        return new MosaicBuilder(mosaicId, amount);
    }

    /**
     * Creates an instance of MosaicBuilder.
     *
     * @param mosaicId Mosaic identifier..
     * @param amount Mosaic amount..
     * @return Instance of MosaicBuilder.
     */
    public static createMosaicBuilder(mosaicId: MosaicIdDto, amount: AmountDto): MosaicBuilder {
        return new MosaicBuilder(mosaicId, amount);
    }

    /**
     * Gets Mosaic identifier..
     *
     * @return Mosaic identifier..
     */
    public getMosaicId(): MosaicIdDto {
        return this.mosaicId;
    }

    /**
     * Gets Mosaic amount..
     *
     * @return Mosaic amount..
     */
    public getAmount(): AmountDto {
        return this.amount;
    }

    /**
     * Gets the size of the object.
     *
     * @return Size in bytes.
     */
    public getSize(): number {
        let size = 0;
        size += this.mosaicId.getSize(); // mosaicId
        size += this.amount.getSize(); // amount
        return size;
    }

    /**
     * Serializes an object to bytes.
     *
     * @return Serialized bytes.
     */
    public serialize(): Uint8Array {
        let newArray = Uint8Array.from([]);
        const mosaicIdBytes = this.mosaicId.serialize();
        newArray = GeneratorUtils.concatTypedArrays(newArray, mosaicIdBytes);
        const amountBytes = this.amount.serialize();
        newArray = GeneratorUtils.concatTypedArrays(newArray, amountBytes);
        return newArray;
    }
}