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/*
 * ===========================================
 * Java Pdf Extraction Decoding Access Library
 * ===========================================
 *
 * Project Info:  http://www.idrsolutions.com
 * Help section for developers at http://www.idrsolutions.com/support/
 *
 * (C) Copyright 1997-2017 IDRsolutions and Contributors.
 *
 * This file is part of JPedal/JPDF2HTML5
 *
 @LICENSE@
 *
 * ---------------
 * AFRange.java
 * ---------------
 */
package org.jpedal.objects.javascript.functions;

import org.jpedal.constants.ErrorCodes;
import org.jpedal.objects.acroforms.AcroRenderer;
import org.jpedal.objects.acroforms.actions.ActionHandler;
import org.jpedal.objects.raw.FormObject;

public class AFRange extends JSFunction {

    public AFRange(final AcroRenderer acro, final FormObject formObject) {
        super(acro, formObject);
    }

    @Override
    public int execute(final String js, final String[] args, final int type, final int event, final char keyPressed) {

        if (args == null) {
            debug("Unknown implementation in " + js);

        } else if (args.length < 1) {
            debug("Values length is less than 1");
        } else {

            if (event == ActionHandler.FOCUS_EVENT && type == VALIDATE) {

                String currentVal;

                currentVal = (String) formObject.getFormValue();
                currentVal = currentVal.trim();

                //allow empty if not already set
                if (currentVal.isEmpty()) {

                    formObject.updateValue(currentVal, false, true);
                    formObject.setLastValidValue(currentVal);

                    return 0;
                }

                final float min = Float.parseFloat(parseJSvariables(args[2]));
                final float max = Float.parseFloat(parseJSvariables(args[4]));

                if (isNotNumber(currentVal)) {
                    currentVal = null;
                } else {

                    //Convert currentVal into a format parseFloat can accept
                    String newValue = currentVal;

                    if (DECIMAL_IS_COMMA) {
                        newValue = newValue.replaceAll("\\.", "");
                        newValue = newValue.replaceAll(",", "\\.");
                    } else {
                        newValue = newValue.replaceAll(",", "");
                    }

                    final float numVal = Float.parseFloat(newValue);

                    //Get Range if if range values are include
                    final boolean notEquals1 = Boolean.valueOf(args[1]);
                    final boolean notEquals2 = Boolean.valueOf(args[3]);

                    //Ensure this float value in within the provided range else set currentVal to null
                    if (notEquals1 && numVal < min) {
                        currentVal = null;
                    } else if (!notEquals1 && numVal <= min) {
                        currentVal = null;
                    }

                    if (notEquals2 && numVal > max) {
                        currentVal = null;
                    } else if (!notEquals2 && numVal >= max) {
                        currentVal = null;
                    }
                }

                if (currentVal == null) { //restore and flag error
                    //store arg 1 to convert back after alert call
                    final String arg1tmp = args[1];

                    final StringBuilder message = new StringBuilder("Invalid value: must be greater than ");
                    if (args[1].equals("true")) {
                        message.append("or equal to ");
                    }

                    message.append(min);
                    message.append("\nand less than ");

                    if ((args[3]).equals("true")) {
                        message.append("or equal to ");
                    }

                    message.append(max);
                    message.append('.');

                    args[1] = message.toString();

                    maskAlert(ErrorCodes.JSInvalidRangeFormat, args);

                    //convert args[1] back to its original value before message sent to alert
                    args[1] = arg1tmp;
                    execute(js, args, type, event, keyPressed);
                } else {
                    //Set value as the original formated value

                    formObject.updateValue(currentVal, false, true); //write back
                    formObject.setLastValidValue(currentVal);

                }
            } else {
                debug("Unknown command " + args[0] + " in " + js);
            }
        }

        return 0;
    }
}