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/**
 * The MIT License (MIT)
 *
 * Copyright (c) 2011-2016 Incapture Technologies LLC
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in all
 * copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 * SOFTWARE.
 */
package reflex.function;

import java.util.List;

import reflex.IReflexHandler;
import reflex.ReflexException;
import reflex.Scope;
import reflex.debug.IReflexDebugger;
import reflex.node.BaseNode;
import reflex.node.ReflexNode;
import reflex.util.InstrumentDebugger;
import reflex.util.InstrumentationLine;
import reflex.value.ReflexValue;
import reflex.value.internal.ReflexVoidValue;

public class AssertNode extends BaseNode {

    private ReflexNode message;
    private ReflexNode expression;

    public AssertNode(int lineNumber, IReflexHandler handler, Scope s, ReflexNode m, ReflexNode e) {
        super(lineNumber, handler, s);
        message = m;
        expression = e;
    }

    @Override
    public ReflexValue evaluate(IReflexDebugger debugger, Scope scope) {
        debugger.stepStart(this, scope);

        ReflexValue value = expression.evaluate(debugger, scope);

        if (!value.isBoolean()) {
            throw new ReflexException(lineNumber, Messages.getString("AssertNode.errorBoolean")); //$NON-NLS-1$
        }

        if (!value.asBoolean()) {
        	StringBuilder sb = new StringBuilder();
        	sb.append((message != null) ? message.evaluate(debugger, scope).asString() : expression.toString());
        	sb.append("\nLine "+lineNumber+" : \n");
        	if (debugger instanceof InstrumentDebugger) {
        		List lines = ((InstrumentDebugger) debugger).getInstrumenter().getLines();
        		sb.append(lines.get(lineNumber-1).getCode());
        	}
            throw new AssertionError(sb.toString());
        }

        debugger.stepEnd(this, new ReflexVoidValue(lineNumber), scope);
        return new ReflexVoidValue();
    }
}