/**

 * The MIT License (MIT)

 *

 * Copyright (C) 2013 Jaroslav Tulach <jaroslav.tulach@apidesign.org>

 *

 * 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 dew.demo.histogram;

import java.util.ArrayList;

import java.util.List;

import net.java.html.json.ComputedProperty;

import net.java.html.json.Model;

import net.java.html.json.Property;

/** Model annotation generates class Data with 

 * one property for list of of numbers and read-only property

 * for ten of bars.

 */

@Model(className = "Data", properties = {

    @Property(name = "numbers", type = String.class)

})

final class DataModel {

    @ComputedProperty static java.util.List<Bar> bars(String numbers) {

        List<Bar> arr = new ArrayList<Bar>(10);

        for (int i = 0; i < 10; i++) {

            arr.add(new Bar(i, 0));

        }

        String[] words = numbers == null ? new String[0] : numbers.split(" ");

        for (String word : words) {

            try {

                double n = Double.parseDouble(word);

                if (n > 99) {

                    n = 99;

                } else if (n <= 0) {

                    n = 0;

                }

                Bar b = arr.get((int) (n / 10));

                b.setValue(b.getValue() + 1);

            }catch (NumberFormatException ex) {

                // ignore

            }

        }

        return arr;

    }

    @Model(className = "Bar", properties = {

        @Property(name = "index", type = int.class),

        @Property(name = "value", type = int.class)

    })

    static class BarModel {

        @ComputedProperty static String left(int index) {

            return (index * 50 + 20) + "px";

        }

        @ComputedProperty static String top(int value) {

            return (199 - value * 20) + "px";

        }

        @ComputedProperty static String height(int value) {

            return 20 * value + "px";

        }

    }

}