/*
    @Packet name                LeaderboardPage
    @Packet identifier          166
    @Description                - 
    @Data                       pId
    @Structure                  -
*/

module.exports = {
    init: (leaderboardID, length) => {
        const packetLength = (length * 16 + length * 4) + 4 + 1;
        const buffer = new ArrayBuffer(packetLength);
        const view = new DataView(buffer);
    
        view.setUint8(0, 166);
        view.setUint8(1, packetLength);
        view.setUint16(2, leaderboardID);
        view.setUint8(4, length);

        let i = 0;

        return {
            update: d => {
                const startIndex = i * (16 + 4);

                const nameBuffer = Buffer.from(d.username);
                for (const pair of nameBuffer.entries()) {
                    const index = pair[0];
                    view.setUint8(5 + startIndex + index, pair[1]);
                };

                view.setUint32(5 + startIndex + 16, d.amount);
    
                i++;
            },
            get: () => {
                return buffer;
            }
        };
    }
};