File: example/cli

#!/usr/bin/env php
<?php
/**
 * @author stev leibelt <artodeto@bazzline.net>
 * @since 2015-06-30
 * @see: 
 *  https://github.com/stevleibelt/examples/blob/master/php/cli/readline.php
 *  https://github.com/yiisoft/yii2/issues/7974
 *  https://github.com/ErikDubbelboer/php-repl/blob/master/repl.php
 */

use Net\Bazzline\Component\Cli\Readline\ManagerFactory;
use Net\Bazzline\Component\Csv\Reader\ReaderFactory;
use Net\Bazzline\Component\Csv\Writer\WriterFactory;

require_once __DIR__ . '/../vendor/autoload.php';

try {
    $path = ($argc > 1) ? $argv[1] : __DIR__ . '/file/example.csv';

    if (!file_exists($path)) {
        throw new Exception('invalid file path provided: "' . $path . '"');
    }

    $managerFactory = new ManagerFactory();
    $readerFactory  = new ReaderFactory();
    $writerFactory  = new WriterFactory();

    $manager        = $managerFactory->create();
    $reader         = $readerFactory->create();
    $writer         = $writerFactory->create();

    $reader->setPath($path);
    $writer->setPath($path);

    $manager->setConfiguration(
        [
            'exit' => function () {
                exit(0);
            },
            'help' => function () {
                echo 'usage: ' . PHP_EOL .
                    '    ' . basename(__FILE__) . ' [path to csv file]' . PHP_EOL;
            },
            'read' => [
                'all' => function () use ($reader) {
                    foreach ($reader->readAll() as $line) {
                        echo implode("\t", $line) . PHP_EOL;
                    }
                },
                'many' => function($length = null, $start = null) use ($reader) {
                    $showUsage = (is_null($length) || ((int) $length === 0));
                    if ($showUsage) {
                        echo 'usage: ' . PHP_EOL .
                            '    many <length> [<start>]' . PHP_EOL;
                    } else {
                        foreach ($reader->readMany($length, $start) as $line) {
                            echo implode("\t", $line) . PHP_EOL;
                        }
                    }
                },
                'one' => function ($lineNumber = null) use ($reader) {
                    $showUsage = (is_null($lineNumber));
                    if ($showUsage) {
                        echo 'usage: ' . PHP_EOL .
                            '    one <line number>' . PHP_EOL;
                    } else {
                        $line = $reader->readOne($lineNumber);

                        if (is_array($line)) {
                            echo implode("\t", $line) . PHP_EOL;
                        } else if (is_scalar($line)) {
                            echo $line . PHP_EOL;
                        }
                    }
                }
            ],
            'write' => [
                'all' => function ($lines = null) use ($writer) {
                    //@todo move into closure to reuse it
                    $lines          = func_get_args();
                    $numberOfLines  = false;

                    if (is_array($lines)) {
                        $numberOfLines = $writer->writeMany($lines);
                    }

                    if ($numberOfLines === false) {
                        echo 'no lines where written' . PHP_EOL;
                    } else {
                        echo count($lines) . ' lines written' . PHP_EOL;
                    }
                },
                'many' => function () use ($writer) {
                    $lines          = func_get_args();
                    $numberOfLines  = false;

                    if (is_array($lines)) {
                        $numberOfLines = $writer->writeMany($lines);
                    }

                    if ($numberOfLines === false) {
                        echo 'no lines where written' . PHP_EOL;
                    } else {
                        echo count($lines) . ' lines written' . PHP_EOL;
                    }
                },
                'one' => function () use ($writer) {
                    $arguments          = func_get_args();
                    $numberOfArguments  = count($arguments);

                    if ($numberOfArguments === 1) {
                        $line = $arguments[0];
                        $numberOfLines = (is_scalar($line)) ? $writer->writeOne($line) : false;
                    } else if ($numberOfArguments > 1) {
                        $line = implode(',', $arguments);
                        $numberOfLines = (is_scalar($line)) ? $writer->writeOne($line) : false;
                    } else {
                        $numberOfLines = false;
                    }

                    if ($numberOfLines === false) {
                        echo 'no lines where written' . PHP_EOL;
                    } else {
                        echo '1 line written' . PHP_EOL;
                    }
                }
            ]
        ]
    );
    $manager->setPrompt('csv cli: ');
    $manager->run();
} catch (Exception $exception) {
    echo 'usage: ' . basename(__FILE__) . ' [<path/to/csv>]' . PHP_EOL;
    echo '----------------' . PHP_EOL;
    echo $exception->getMessage() . PHP_EOL;
    return 1;
}