#! /usr/bin/env php
<?php

// Ensure correct include path
require_once 'Base/src/base.php';
function __autoload( $class )
{
    ezcBase::autoload( $class );
}

/**
 * Class extending ezcConsoleQuestionDialog for multiple rows of data.
 *
 * Each row gets validated against the specified validator. The result will 
 * be an array of valid input values.
 * 
 * @uses ezcConsoleQuestionDialog
 * @version $id$
 * @copyright 1997-2006 Kore Nordmann
 * @author Kore Nordmann <kn@ez.no> 
 */
class knConsoleBatchDialog extends ezcConsoleQuestionDialog
{
    /**
     * Show the dialog.
     * Display the dialog and retreive the desired answer from the user.
     * 
     * @return void
     */
    public function display()
    {
        $this->output->outputText(
            $this->options->text . ( $this->options->showResults === true ? " " . $this->options->validator->getResultString() : "" ) . " ",
            $this->options->format
        );

        // Read data
        $result = array();
        do {
            $line = ezcConsoleDialogViewer::readLine();

            $result[] = $this->options->validator->fixup( $line );
        } while ( trim( $line ) );

        // Validate all input lines
        $validResult = array();
        foreach ( $result as $value )
        {
            if ( $this->options->validator->validate( $value ) )
            {
                $validResult[] = $value;
            }
        }

        $this->result = $validResult;
    }
}

// Main loop

// Instatiate general execution dialog
$output = new ezcConsoleOutput();
$proceed = ezcConsoleQuestionDialog::YesNoQuestion( 
    $output, 
    'Do you want to create another chart?',
    'n'
);

$run = 0;
do {
    // Select chart type
    $menu = new ezcConsoleMenuDialog( $output );
    $menu->options = new ezcConsoleMenuDialogOptions(
        array(
            'text' => 'Please select the chart type you want to create:',
            'validator' => new ezcConsoleMenuDialogDefaultValidator(
                $charts = array(
                    'ezcGraphPieChart',
                    'ezcGraphLineChart',
                    'ezcGraphBarChart',
                    'ezcGraphRadarChart',
                )
            ),
        )
    );
    $selectedChartType = $charts[ezcConsoleDialogViewer::displayDialog( $menu )];

    // Select palette
    $menu = new ezcConsoleMenuDialog( $output );
    $menu->options = new ezcConsoleMenuDialogOptions(
        array(
            'text' => 'Please select the palette you want to use for the chart:',
            'validator' => new ezcConsoleMenuDialogDefaultValidator(
                $palettes = array(
                    'ezcGraphPaletteBlack',
                    'ezcGraphPaletteEz',
                    'ezcGraphPaletteEzBlue',
                    'ezcGraphPaletteEzGreen',
                    'ezcGraphPaletteEzRed',
                    'ezcGraphPaletteTango',
                )
            ),
        )
    );
    $selectedPalette = $palettes[ezcConsoleDialogViewer::displayDialog( $menu )];

    // How many datasets should be used?
    if ( $selectedChartType === 'ezcGraphPieChart' )
    {
        $selectedDatasetCount = 1;
    }
    else
    {
        $question = new ezcConsoleQuestionDialog( $output );
        $question->options = new ezcConsoleQuestionDialogOptions(
            array(
                'text' => 'How many datasets do you want to create?',
                'validator' => new ezcConsoleQuestionDialogTypeValidator(
                    ezcConsoleQuestionDialogTypeValidator::TYPE_INT,
                    1
                ),
            )
        );

        $selectedDatasetCount = ezcConsoleDialogViewer::displayDialog( $question );
    }

    // Enter data for data sets
    for ( $dataset = 0; $dataset < $selectedDatasetCount; ++$dataset )
    {
        $question = new ezcConsoleQuestionDialog( $output );
        $question->options = new ezcConsoleQuestionDialogOptions(
            array(
                'text' => 'Enter a name for the dataset:',
                'validator' => new ezcConsoleQuestionDialogTypeValidator(
                    ezcConsoleQuestionDialogTypeValidator::TYPE_STRING,
                    'Dataset ' . ( $dataset + 1)
                ),
            )
        );

        $dataSetName[$dataset] = ezcConsoleDialogViewer::displayDialog( $question );

        $question = new knConsoleBatchDialog( $output );
        $question->options = new ezcConsoleQuestionDialogOptions(
            array(
                'text' => 'Please enter the data:',
                'validator' => new ezcConsoleQuestionDialogTypeValidator(
                    ezcConsoleQuestionDialogTypeValidator::TYPE_FLOAT
                ),
            )
        );

        $data[$dataset] = ezcConsoleDialogViewer::displayDialog( $question );
    }

    // Finally enter a chart title
    $question = new ezcConsoleQuestionDialog( $output );
    $question->options = new ezcConsoleQuestionDialogOptions(
        array(
            'text' => 'Enter a chart title:',
            'validator' => new ezcConsoleQuestionDialogTypeValidator(
                ezcConsoleQuestionDialogTypeValidator::TYPE_STRING,
                false
            ),
        )
    );

    $selectedTitle = ezcConsoleDialogViewer::displayDialog( $question );

    // Finally create chart from input data
    $chart = new $selectedChartType();
    $chart->palette = new $selectedPalette();

    if ( $selectedTitle )
    {
        $chart->title = $selectedTitle;
    }

    for ( $i = 0; $i < $selectedDatasetCount; ++$i )
    {
        $chart->data[$dataSetName[$i]] = new ezcGraphArrayDataSet( $data[$i] );
    }

    $chart->render( 400, 200, 'generated_' . (++$run) . '.svg' );

    $proceed->reset();
} while ( ezcConsoleDialogViewer::displayDialog( $proceed ) === 'y' );

// We're done