<?php

namespace App\Console\Commands;

use Log;
use Illuminate\Console\Command;
use App\Model\Person;
use App\Model\PhotoPerson;
use App\Model\Photo;
use App\Model\PhotoTag;
use App\Model\Tag;

class Import extends Command
{
	/**
	 * The name and signature of the console command.
	 *
	 * @var string
	 */
	protected $signature = 'photo:import
		{--dir= : Directory to Parse}
		{--file= : File to import}
		{--ignoredupe : Ignore duplicate files}
		{--deletedupe : Delete duplicate files}
		{--people= : People to reference in photo}
		{--tags= : Add tag to photo}';

	/**
	 * The console command description.
	 *
	 * @var string
	 */
	protected $description = 'Import photos into the database';

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

	/**
	 * Execute the console command.
	 *
	 * @return mixed
	 */
	public function handle()
	{
		// Make sure we got a directory or a file to import
		if (is_null($this->option('file')) AND is_null($this->option('dir')))
			abort(500,'Missing filename, please use --file= OR --dir=');

		Log::info('Processing: '.($this->option('file') ? $this->option('file') : $this->option('dir')));

		$files = [];

		if ($this->option('dir'))
		{
			// Remove our trailing slash from the directory.
			$dir = preg_replace('/\/$/','',$this->option('dir'));

			// Exclude . & .. from the path.
			$files = array_diff(scandir($dir),array('.','..'));

			// Determine if our dir is releative to where we store data
			$dir = preg_replace('/^\//','',str_replace(config('photo.dir'),'',$dir));

			// Add our path
			if ($dir)
				array_walk($files,function(&$value,$key,$path='') {
					if ($path) {
						$value = sprintf('%s/%s',$path,$value);
					}
				},$dir);
		}
		elseif ($this->option('file'))
		{
			$files = array($this->option('file'));
		}

		// Show a progress bar
		$bar = $this->output->createProgressBar(count($files));
		$bar->setFormat("%current%/%max% [%bar%] %percent:3s%% (%memory%) (%remaining%) ");

		$tags = NULL;
		$t = $p = array();

		// Tags
		if ($this->option('tags'))
		{
			$tags = explode(',',$this->option('tags'));
			$t = Tag::whereIn('tag',$tags)->get();
		}

		// People
		if ($this->option('people'))
		{
			$tags = explode(',',$this->option('people'));
			$p = Person::whereIn('tag',$tags)->get();
		}

		$c = 0;
		foreach ($files as $file)
		{
			$bar->advance();

			if (preg_match('/@__thumb/',$file) OR preg_match('/\/._/',$file))
			{
				$this->warn(sprintf('Ignoring file [%s]',$file));
				continue;
			}

			if (! in_array(strtolower(pathinfo($file,PATHINFO_EXTENSION)),config('photo.import.accepted')))
			{
				$this->warn(sprintf('Ignoring [%s]',$file));
				continue;
			}

			if ($this->option('verbose'))
				$this->info(sprintf('Processing file [%s]',$file));

			$c++;

			$po = Photo::where('filename',$file)->first();

			if (is_null($po))
			{
				$po = new Photo;
				$po->filename = $file;
			}

			$po->date_taken = strtotime($po->io('exif:DateTime'));
			$po->subsectime = $po->io('exif:SubSecTimeOriginal');

			$po->signature = $po->io()->getImageSignature();

			$po->make = $po->io('exif:Make');
			$po->model = $po->io('exif:Model');

			$po->height = $po->io()->getImageheight();
			$po->width = $po->io()->getImageWidth();
			$po->orientation = $po->io()->getImageOrientation();

			$po->gps_lat = $po->latlon(preg_split('/,\s?/',$po->io()->getImageProperty('exif:GPSLatitude')),$po->io()->getImageProperty('exif:GPSLatitudeRef'));
			$po->gps_lon = $po->latlon(preg_split('/,\s?/',$po->io()->getImageProperty('exif:GPSLongitude')),$po->io()->getImageProperty('exif:GPSLongitudeRef'));

			try {
				$po->thumbnail = exif_thumbnail($po->file_path());
			} catch (Exception $e) {
				// @todo Couldnt get the thumbnail, so we should create one.
			}

			// If this is a duplicate
			$x = $po->list_duplicate()->get();
			if (count($x)) {
				$skip = FALSE;

				foreach ($x as $o) {
					// We'll only ignore based on the same signature.
					if ($po->signature != $o->signature AND ! $po->exists)
						continue;

					if ($this->option('ignoredupe'))
					{
						$skip = TRUE;
						$this->warn(sprintf("Ignoring file [%s], it's the same as [%s] with id %s",$po->file_path(),$o->filename,$o->id));
						break;

					}
					elseif ($this->option('deletedupe') AND ($po->filename != $o->filename))
					{
						$skip = TRUE;
						$this->error(sprintf("Deleting file [%s], it's the same as [%s] with id %s and signature [%s]\n",$po->file_path(),$o->filename,$o->id,$po->signature));
						unlink($po->file_path());
					}
				}

				if ($skip)
					continue;

				$po->duplicate = '1';
				$this->warn(sprintf('Image [%s] marked as a duplicate',$file));
			}

			if ($po->exists)
				$this->warn(sprintf('Image [%s] already in DB: %s',$file,$po->id));

			$po->save();

			if ($po->wasRecentlyCreated)
				$this->info(sprintf('Image [%s] stored in DB: %s',$file,$po->id));

			// Record our tags
			foreach ($t as $o)
				if (! (new PhotoTag)->where('tag_id','=',$o->id)->where('photo_id','=',$po->id)->count())
				{
					$x = new PhotoTag;
					$x->tag_id = $o->id;
					$x->photo_id = $po->id;
					$x->save();
				}

			// Record our people
			foreach ($p as $o)
				if (! (new PhotoPerson)->where('people_id','=',$o->id)->where('photo_id','=',$po->id)->count())
				{
					$x = new PhotoPerson;
					$x->people_id = $o->id;
					$x->photo_id = $po->id;
					$x->save();
				}
		}

		$bar->finish();

		return $this->info(sprintf('Images processed: %s',$c));
	}
}