import { INode } from "../../interfaces/nodes/INode";

import { TNodeWithBlockStatement } from "../../types/TNodeWithBlockStatement";

import { AppendState } from "../../enums/AppendState";

import { NO_CUSTOM_NODES_PRESET } from "../../preset-options/NoCustomNodesPreset";

import { SelfDefendingTemplate } from "../../templates/custom-nodes/self-defending-nodes/self-defending-unicode-node/SelfDefendingTemplate";

import { JavaScriptObfuscator } from "../../JavaScriptObfuscator";
import { Node } from '../Node';
import { NodeUtils } from "../../NodeUtils";
import { Utils } from "../../Utils";

export class SelfDefendingUnicodeNode extends Node {
    /**
     * @type {AppendState}
     */
    protected appendState: AppendState = AppendState.AfterObfuscation;

    /**
     * @param blockScopeNode
     */
    public appendNode (blockScopeNode: TNodeWithBlockStatement): void {
        let programBodyLength: number = blockScopeNode.body.length,
            randomIndex: number = 0;

        if (programBodyLength > 2) {
            randomIndex = Utils.getRandomGenerator().integer({
                min: programBodyLength / 2,
                max: programBodyLength - 1
            });
        }

        NodeUtils.insertNodeAtIndex(blockScopeNode.body, this.getNode(), randomIndex);
    }

    /**
     * @returns {INode}
     */
    protected getNodeStructure (): INode {
        return NodeUtils.convertCodeToStructure(
            JavaScriptObfuscator.obfuscate(
                SelfDefendingTemplate(),
                NO_CUSTOM_NODES_PRESET
            ).getObfuscatedCode()
        );
    }
}