<?php

namespace Orangehill\Iseed;

use Illuminate\Console\Command;
use Symfony\Component\Console\Input\InputArgument;
use Symfony\Component\Console\Input\InputOption;

class IseedCommand extends Command
{
    /**
     * The console command name.
     *
     * @var string
     */
    protected $name = 'iseed';

    /**
     * The console command description.
     *
     * @var string
     */
    protected $description = 'Generate seed file from table';

    /**
     * Create a new command instance.
     *
     * @return \Orangehill\Iseed\IseedCommand
     */
    public function __construct()
    {
        parent::__construct();
    }

    /**
     * Execute the console command.
     *
     * @return void
     */
    public function fire()
    {
        // if clean option is checked empty iSeed template in DatabaseSeeder.php
        if ($this->option('clean')) {
            app('iseed')->cleanSection();
        }

        $tables = explode(",", $this->argument('tables'));
        $chunkSize = intval($this->option('max'));
        $exclude = explode(",", $this->option('exclude'));
        $prerunEvents = explode(",", $this->option('prerun'));
        $postrunEvents = explode(",", $this->option('postrun'));
        $dumpAuto = intval($this->option('dumpauto'));
        $indexed = !$this->option('noindex');
        $orderBy = $this->option('orderby');
        $direction = $this->option('direction');

        if ($chunkSize < 1) {
            $chunkSize = null;
        }

        $tableIncrement = 0;
        foreach ($tables as $table) {
            $table = trim($table);
            $prerunEvent = null;
            if (isset($prerunEvents[$tableIncrement])) {
                $prerunEvent = trim($prerunEvents[$tableIncrement]);
            }
            $postrunEvent = null;
            if (isset($postrunEvents[$tableIncrement])) {
                $postrunEvent = trim($postrunEvents[$tableIncrement]);
            }
            $tableIncrement++;

            // generate file and class name based on name of the table
            list($fileName, $className) = $this->generateFileName($table);

            // if file does not exist or force option is turned on generate seeder
            if (!\File::exists($fileName) || $this->option('force')) {
                $this->printResult(
                    app('iseed')->generateSeed(
                        $table,
                        $this->option('database'),
                        $chunkSize,
                        $exclude,
                        $prerunEvent,
                        $postrunEvent,
                        $dumpAuto,
                        $indexed,
                        $orderBy,
                        $direction
                    ),
                    $table
                );
                continue;
            }

            if ($this->confirm('File ' . $className . ' already exist. Do you wish to override it? [yes|no]')) {
                // if user said yes overwrite old seeder
                $this->printResult(
                    app('iseed')->generateSeed(
                        $table,
                        $this->option('database'),
                        $chunkSize,
                        $exclude,
                        $prerunEvent,
                        $postrunEvent,
                        $dumpAuto,
                        $indexed
                    ),
                    $table
                );
            }
        }

        return;
    }

    /**
     * Get the console command arguments.
     *
     * @return array
     */
    protected function getArguments()
    {
        return array(
            array('tables', InputArgument::REQUIRED, 'comma separated string of table names'),
        );
    }

    /**
     * Get the console command options.
     *
     * @return array
     */
    protected function getOptions()
    {
        return array(
            array('clean', null, InputOption::VALUE_NONE, 'clean iseed section', null),
            array('force', null, InputOption::VALUE_NONE, 'force overwrite of all existing seed classes', null),
            array('database', null, InputOption::VALUE_OPTIONAL, 'database connection', \Config::get('database.default')),
            array('max', null, InputOption::VALUE_OPTIONAL, 'max number of rows', null),
            array('exclude', null, InputOption::VALUE_OPTIONAL, 'exclude columns', null),
            array('prerun', null, InputOption::VALUE_OPTIONAL, 'prerun event name', null),
            array('postrun', null, InputOption::VALUE_OPTIONAL, 'postrun event name', null),
            array('dumpauto', null, InputOption::VALUE_OPTIONAL, 'run composer dump-autoload', true),
            array('noindex', null, InputOption::VALUE_NONE, 'no indexing in the seed', null),
            array('orderby', null, InputOption::VALUE_OPTIONAL, 'orderby desc by column', null),
            array('direction', null, InputOption::VALUE_OPTIONAL, 'orderby direction', null),
        );
    }

    /**
     * Provide user feedback, based on success or not.
     *
     * @param  boolean $successful
     * @param  string $table
     * @return void
     */
    protected function printResult($successful, $table)
    {
        if ($successful) {
            $this->info("Created a seed file from table {$table}");
            return;
        }

        $this->error("Could not create seed file from table {$table}");
    }

    /**
     * Generate file name, to be used in test wether seed file already exist
     *
     * @param  string $table
     * @return string
     */
    protected function generateFileName($table)
    {
        if (!\Schema::connection($this->option('database') ? $this->option('database') : config('database.default'))->hasTable($table)) {
            throw new TableNotFoundException("Table $table was not found.");
        }

        // Generate class name and file name
        $className = app('iseed')->generateClassName($table);
        $seedPath = base_path() . config('iseed::config.path');
        return [$seedPath . '/' . $className . '.php', $className . '.php'];
    }
}
