<?php

namespace App\Models;

use App\Enums\MediaExtension;
use App\Enums\MediaStatut;
use App\Events\MediaChangedLabel;
use App\Events\MediaCreated;
use App\Events\MediaDestroyed;
use App\Events\MediaUpdated;
use App\Lib\ToolboxHelper;
use App\Traits\Models\BindedToElasticSearch;
use App\Models\User;
use Illuminate\Database\Eloquent\Model;
use Illuminate\Database\Eloquent\Prunable;
use Illuminate\Database\Eloquent\SoftDeletes;
use Illuminate\Support\Facades\Storage;
use Illuminate\Validation\ValidationException;
use Rennokki\QueryCache\Traits\QueryCacheable;

class Media extends Model
{
    use BindedToElasticSearch;
    use Prunable;
    use QueryCacheable;
    use SoftDeletes;

    /**
     * The timeout cache for this model
     *
     * @var integer
     */
    protected $cacheFor = -1;

    /**
     * The cache driver to be used.
     *
     * @var string
     */
    public $cacheDriver = 'redis';

    /**
     * Is the model a duplicate of another (only true before we save it in database)
     *
     * @var boolean
     */
    public $isDuplicate = false;

    /**
     * The relations to eager load on every query.
     *
     * @var array
     */
    protected $with = [
        'owner',
        'tags',
        'etiquette',
        'articles',
        'sujet',
        'typeMedia',
        'societes',
        'marques'
    ];

    /**
     * The attributes that are mass assignable.
     *
     * @var array
     */
    protected $fillable = [
        // ! id est obligatoire ici pour Jobs/XmlArcadiaMediasIn
        'id',
        'libelle',
        'type_vue_id',
        'variante_id',
        'copyright_id',
        'etiquette_id',
        'langue_id',
        'commentaire',
        'version',
        'statut',
    ];

    /**
     * The attributes that should be cast.
     *
     * @var array
     */
    protected $casts = [
        'isDefault' => 'bool',
        'isLocked' => 'bool',
        'statut' => MediaStatut::class,
        'extension' => MediaExtension::class
    ];

    /**
     * ES The elasticsearch settings.
     *
     * @var array
     */
    protected $indexSettings = [
        'analysis' => [
            'char_filter' => [
                'replace' => [
                    'type' => 'mapping',
                    'mappings' => [
                        '&=> and '
                    ],
                ],
            ],
            'filter' => [
                'word_delimiter' => [
                    'type' => 'word_delimiter',
                    'split_on_numerics' => false,
                    'split_on_case_change' => true,
                    'generate_word_parts' => true,
                    'generate_number_parts' => true,
                    'catenate_all' => true,
                    'preserve_original' => true,
                    'catenate_numbers' => true,
                ]
            ],
            'analyzer' => [
                'default' => [
                    'type' => 'custom',
                    'char_filter' => [
                        'html_strip',
                        'replace',
                    ],
                    'tokenizer' => 'whitespace',
                    'filter' => [
                        'lowercase',
                        'word_delimiter',
                    ],
                ],
            ],
            'normalizer' => [
                'my_normalizer' => [
                    'type' => 'custom',
                    'char_filter' => [],
                    'filter' => [
                        'lowercase'
                    ]
                ]
            ]
        ],
    ];

    /**
     * ES Mapping Properties
     *
     * @var array
     */
    protected $mappingProperties = array(
        'libelle' => array(
            'type' => 'text',
            'analyzer' => 'default',
            'fields' => [
                'keyword' => [
                    'type' => 'keyword',
                    'normalizer' => 'my_normalizer'
                ]
            ],
            'fielddata' => true
        ),
        'commentaire' => array(
            'type' => 'text',
            'analyzer' => 'default',
            'fields' => [
                'keyword' => [
                    'type' => 'keyword',
                    'normalizer' => 'my_normalizer'
                ]
            ],
            'fielddata' => true
        ),
        'created_at' => [
            'type' => 'date',
            "format" => "yyyy-MM-dd HH:mm:ss"
        ],
        'updated_at' => [
            'type' => 'date',
            "format" => "yyyy-MM-dd HH:mm:ss"
        ],
        'version' => [
            'type' => 'text',
            'fielddata' => true
        ],
        'arcadia_id' => [
            'type' => 'text',
            'analyzer' => 'standard'
        ],
        'articles.noArt' => [
            'type' => 'text',
            'analyzer' => 'standard'
        ],
        'articles.libCcial' => [
            'type' => 'text',
            'analyzer' => 'default',
            'fields' => [
                'keyword' => [
                    'type' => 'keyword',
                    'normalizer' => 'my_normalizer'
                ]
            ],
            'fielddata' => true
        ]
    );

    /**
     * Perform any actions required after the model boots.
     *
     * @return void
     */
    protected static function booted()
    {
        static::created(function (self $model) {
            // * Flush Eloquent cache.
            self::flushQueryCache();

            /** @var \App\Models\User */
            $user = auth()->user();
            MediaCreated::dispatch($user, $model);

            if (empty($model->isDuplicate)) {
                /** @throws \RuntimeException */
                $model->addToElasticSearch();
            }
        });
        static::updating(function (self $model) {
            if ($model->statut === MediaStatut::brouillon and $model->arcadia_id) {
                throw ValidationException::withMessages([
                    'statut' => trans('Impossible de changer le statut en brouillon quand la fiche est liée à arcadia')
                ]);
            }
        });
        static::updated(function (self $model) {
            // * Flush Eloquent cache.
            self::flushQueryCache();

            /** @var \App\Models\User */
            $user = auth()->user();

            // * If update is not running from console, we prevent soft delete before trigerring update event
            if ($user and !\array_key_exists('deleted_at', $model->getChanges())) {
                MediaUpdated::dispatch($user, $model);
            }

            if ($model->getRawOriginal('etiquette_id') != $model->etiquette_id) {
                /** @var \App\Models\Etiquette|null */
                $oldLabel = Etiquette::where('etiquette_id', $model->getRawOriginal('etiquette_id'))->first();
                /** @var \App\Models\Etiquette|null */
                $newLabel = Etiquette::where('etiquette_id', $model->etiquette_id)->first();
                MediaChangedLabel::dispatch($user, $model, $oldLabel, $newLabel);
            }

            /** @throws \RuntimeException */
            $model->addToElasticSearch();
        });
        static::deleted(function (self $model) {
            // * Flush Eloquent cache.
            self::flushQueryCache();

            /** @var \App\Models\User */
            $user = auth()->user();
            MediaDestroyed::dispatch($user, $model);

            /** @throws \RuntimeException */
            $model->removeFromElasticSearch();
        });
    }

    // * Laravel Behaviors

    /**
     * Get the route key for the model.
     *
     * @return string
     */
    public function getRouteKeyName()
    {
        return 'uid';
    }

    /**
     * Set the base cache tags that will be present
     * on all queries.
     *
     * ! This is used to flush caching
     *
     * @return array
     */
    protected function getCacheBaseTags(): array
    {
        return [
            'dam_media',
        ];
    }

    /**
     * Get the prunable model query.
     *
     * @return \Illuminate\Database\Eloquent\Builder
     */
    public function prunable()
    {
        return static::query();
    }

    /**
     * Prepare the model for pruning.
     *
     * @return void
     * @throws \RuntimeException If pruning the model fails.
     */
    protected function pruning()
    {
        $storage = Storage::disk('media');
        if ($storage->exists($this->relative_path) and !$storage->delete($this->relative_path)) {
            throw new \RuntimeException("Could not delete $this->relative_path from storage.");
        }
        if ($storage->exists($this->preview_relative_path) and !$storage->delete($this->preview_relative_path)) {
            throw new \RuntimeException("Could not delete $this->preview_relative_path from storage.");
        }
        if ($storage->exists($this->thumb_relative_path) and !$storage->delete($this->thumb_relative_path)) {
            throw new \RuntimeException("Could not delete $this->thumb_relative_path from storage.");
        }
    }

    // * RELATIONSHIPS

    /**
     * BelongsTo dossier relation
     * Get the dossier that owns the media.
     *
     * @return \Illuminate\Database\Eloquent\Relations\BelongsTo
     */
    public function dossier()
    {
        return $this->belongsTo(Dossier::class, 'dossier_id');
    }

    /**
     * BelongsTo sujet relation
     * Get the sujet that owns the media.
     *
     * @return \Illuminate\Database\Eloquent\Relations\BelongsTo
     */
    public function sujet()
    {
        return $this->belongsTo(Sujet::class, 'sujet_id');
    }

    /**
     * BelongsTo typeMedia relation
     * Get the typeMedia that owns the media.
     *
     * @return \Illuminate\Database\Eloquent\Relations\BelongsTo
     */
    public function typeMedia()
    {
        return $this->belongsTo(TypeMedia::class, 'type_media_id');
    }

    /**
     * BelongsTo typevue relation
     * Get the typevue that owns the media.
     *
     * @return \Illuminate\Database\Eloquent\Relations\BelongsTo
     */
    public function typevue()
    {
        return $this->belongsTo(TypeVue::class);
    }

    /**
     * BelongsTo langue relation
     * Get the langue that owns the media.
     *
     * @return \Illuminate\Database\Eloquent\Relations\BelongsTo
     */
    public function langue()
    {
        return $this->belongsTo(Langue::class, 'langue_id');
    }

    /**
     * BelongsTo copyright relation
     * Get the copyright that owns the media.
     *
     * @return \Illuminate\Database\Eloquent\Relations\BelongsTo
     */
    public function copyright()
    {
        return $this->belongsTo(Copyright::class, 'copyright_id');
    }

    /**
     * BelongsTo etiquette relation
     * Get the etiquette that owns the media.
     *
     * @return \Illuminate\Database\Eloquent\Relations\BelongsTo
     */
    public function etiquette()
    {
        return $this->belongsTo(Etiquette::class, 'etiquette_id');
    }

    /**
     * BelongsToMany tags relation
     * The tags that belong to the media.
     *
     * @return \Illuminate\Database\Eloquent\Relations\BelongsToMany
     */
    public function tags()
    {
        return $this->belongsToMany(Tag::class, 'media_tag');
    }

    /**
     * BelongsToMany articles relation
     * The articles that belong to the media.
     *
     * @return \Illuminate\Database\Eloquent\Relations\BelongsToMany
     */
    public function articles()
    {
        return $this->belongsToMany(Article::class, 'media_article');
    }

    /**
     * BelongsToMany societes relation
     * The societes that belong to the media.
     *
     * @return \Illuminate\Database\Eloquent\Relations\BelongsToMany
     */
    public function societes()
    {
        return $this->belongsToMany(Societe::class, 'media_societe');
    }

    /**
     * BelongsToMany marques relation
     * The marques that belong to the media.
     *
     * @return \Illuminate\Database\Eloquent\Relations\BelongsToMany
     */
    public function marques()
    {
        return $this->belongsToMany(Marque::class, 'media_marque', 'media_id', 'marque_id');
    }

    /**
     * BelongsTo user relation
     * Get the user that owns the media.
     *
     * @return \Illuminate\Database\Eloquent\Relations\BelongsTo
     */
    public function owner()
    {
        return $this->belongsTo(User::class, 'created_by');
    }

    /**
     * HasMany historiques relation
     * Get the historiques for the media.
     *
     * @return \Illuminate\Database\Eloquent\Relations\HasMany
     */
    public function historiques()
    {
        return $this->hasMany(Historique::class);
    }

    /**
     * BelongsToMany paniers relation
     * The paniers that belong to the media.
     *
     * @return \Illuminate\Database\Eloquent\Relations\BelongsToMany
     */
    public function paniers()
    {
        return $this->belongsToMany(Panier::class, 'panier_media');
    }

    // * METHODS

    /**
     * Get basename
     *
     * @return string
     */
    public function getBasenameAttribute(): string
    {
        return "{$this->uid}.{$this->extension->value}";
    }

    /**
     * Get preview_basename
     *
     * @return string
     */
    public function getPreviewBasenameAttribute(): string
    {
        $extension = match ($this->extension) {
            MediaExtension::pdf, MediaExtension::ai, MediaExtension::psd => MediaExtension::png,
            default => $this->extension,
        };
        return "{$this->uid}_preview.{$extension->value}";
    }

    /**
     * Get thumb_basename
     *
     * @return string
     */
    public function getThumbBasenameAttribute(): string
    {
        $extension = match ($this->extension) {
            MediaExtension::pdf, MediaExtension::ai, MediaExtension::psd => MediaExtension::png,
            default => $this->extension,
        };
        return "{$this->uid}_thumb.{$extension->value}";
    }

    /**
     * Get relative_path
     *
     * @return string
     */
    public function getRelativePathAttribute(): string
    {
        return "{$this->folder}/{$this->basename}";
    }

    /**
     * Get preview_relative_path
     *
     * @return string
     */
    public function getPreviewRelativePathAttribute(): string
    {
        return "{$this->folder}/{$this->preview_basename}";
    }

    /**
     * Get thumb_relative_path
     *
     * @return string
     */
    public function getThumbRelativePathAttribute(): string
    {
        return "{$this->folder}/{$this->thumb_basename}";
    }

    /**
     * Get full_path
     *
     * @return string
     */
    public function getFullPathAttribute(): string
    {
        /** @var \Illuminate\Filesystem\FilesystemAdapter */
        $storage = Storage::disk('media');
        return $storage->path($this->relative_path);
    }

    /**
     * Get preview_full_path
     *
     * @return string
     */
    public function getPreviewFullPathAttribute(): string
    {
        /** @var \Illuminate\Filesystem\FilesystemAdapter */
        $storage = Storage::disk('media');
        return $storage->path($this->preview_relative_path);
    }

    /**
     * Get thumb_full_path
     *
     * @return string
     */
    public function getThumbFullPathAttribute(): string
    {
        /** @var \Illuminate\Filesystem\FilesystemAdapter */
        $storage = Storage::disk('media');
        return $storage->path($this->thumb_relative_path);
    }

    /**
     * Delete files on path
     * @return void
     * @throws \RuntimeException If the media does not have a subject.
     */
    public function deleteFilesOnAllPath()
    {
        /** @var \Illuminate\Filesystem\FilesystemAdapter */
        $storage = Storage::disk('media');
        $storage->delete($this->relative_path);
        $storage->delete($this->thumb_relative_path);
        $storage->delete($this->preview_relative_path);
        if (!$this->sujet) {
            throw new \RuntimeException('This medias does not have any subject wich is forbidden');
        }

        /** @var \Illuminate\Filesystem\FilesystemAdapter */
        $storage = Storage::disk('media');

        $this->sujet->formats->map(function (Format $format) use ($storage) {
            $filePath = "{$this->folder}/{$this->uid}_{$format->libelle}.{$format->extension}";
            if ($storage->exists($filePath)) {
                $storage->delete($filePath);
            }
        });
    }

    /**
     * Add this media into Elastic Search
     *
     * @return void
     * @throws \RuntimeException If adding to ES failed.
     */
    public function addToElasticSearch()
    {
        $this->removeFromElasticSearch();
        try {
            $this->refresh();
            $this->addToIndex();
        } catch (\Exception $e) {
            report($e);
            throw new \RuntimeException("Failed to add media '$this->arcadia_id' to ES", 0, $e);
        }
    }

    /**
     * Remove this media from ElasticSearch
     *
     * @return void
     * @throws \RuntimeException If someting goes wrong.
     */
    public function removeFromElasticSearch()
    {
        $esExist = self::searchByQuery(['match' => ['arcadia_id' => strval($this->arcadia_id)]]);

        // * Remove all from elastic if exists
        if ($esExist->totalHits() > 0) {
            try {
                $this->removeFromIndex();
            } catch (\Exception $e) {
                report($e);
                throw new \RuntimeException("Failed to add media '$this->arcadia_id' to ES", 0, $e);
            }
        }
    }

    /**
     * Create thumbnail image for a Media Subject on very of its formats.
     * - Creation des vignettes en lien avec le sujet du média
     *
     * @return void
     * @throws \ImagickException On errors.
     * @throws \RuntimeException If media file is missing.
     * @phpcs:ignore Squiz.Commenting.FunctionCommentThrowTag.WrongNumber
     */
    public function createSubjectThumbnails()
    {
        /** @var \Illuminate\Filesystem\FilesystemAdapter */
        $storage = Storage::disk('media');

        if (!$storage->exists($this->relative_path)) {
            throw new \RuntimeException("Missing Media file at path '$this->relative_full_path'");
        }

        $im = new \Imagick();
        $im->readImageBlob(
            $storage->get($this->relative_path),
            $this->basename
        );
        $im->setImageBackgroundColor('#ffffff');
        $im->setImageAlphaChannel(\Imagick::ALPHACHANNEL_REMOVE);
        $im->mergeImageLayers(\Imagick::LAYERMETHOD_FLATTEN);
        $im->stripImage();
        if (in_array($this->extension, [MediaExtension::pdf, MediaExtension::ai, MediaExtension::psd])) {
            $im->setIteratorIndex(0);
        }

        /** @var \Illuminate\Support\Collection<\App\Models\Format> $formats */
        $formats = optional($this->sujet)->formats ?? collect();

        $formats->map(function (Format $format) use ($storage, $im) {
            $targetWidth  = \floatval($format->largeur);
            $targetHeight = \floatval($format->hauteur) == 0 ?
                \floatval(floor(($this->hauteur * $format->largeur) / $this->largeur)) :
                \floatval($format->hauteur);

            $im->setImageFormat($format->extension);
            if ($this->largeur >= $targetWidth || $this->hauteur >= $targetHeight) {
                $im->thumbnailImage($targetWidth, $targetHeight, true);
            }
            $storage->put(
                "{$this->folder}/{$this->uid}_{$format->libelle}.{$format->extension}",
                $im->getImageBlob()
            );
        });
        $im->destroy();
        unset($im);
    }

    /**
     * Create thumbnail image for a Media.
     *  - Creation des vignettes de base
     *
     * @return void
     * @throws \ImagickException On errors.
     * @throws \RuntimeException If media file is missing.
     * @phpcs:ignore Squiz.Commenting.FunctionCommentThrowTag.WrongNumber
     */
    public function createThumbnail()
    {
        /** @var \Illuminate\Filesystem\FilesystemAdapter */
        $storage = Storage::disk('media');

        if (!$storage->exists($this->relative_path)) {
            throw new \RuntimeException("Missing Media file at path '$this->relative_full_path'");
        }

        $im = new \Imagick();
        $im->readImageBlob(
            $storage->get($this->relative_path),
            $this->basename
        );

        if (in_array($this->extension, [MediaExtension::pdf, MediaExtension::ai, MediaExtension::psd])) {
            $im->setIteratorIndex(0);
        }

        /*
            Handle CMJN - DOESN'T WORK
            if ($im->getImageColorspace() === \Imagick::COLORSPACE_CMYK){
                $im->transformImageColorspace(\Imagick::COLORSPACE_RGB);
            }
        */

        // * create preview
        /** @var \App\Models\Format $format */
        $format = Format::withoutGlobalScope('App\Scopes\SystemScope')
            ->where('libelle', '=', 'preview')->firstOrFail();

        if ($this->extension == MediaExtension::gif) {
            if ($this->largeur >= $format->largeur || $this->hauteur >= $format->hauteur || $this->largeur == "") {
                $im = $im->coalesceImages();
                foreach ($im as $frame) {
                    $frame->thumbnailImage($format->largeur, $format->hauteur);
                    $frame->setImagePage($format->largeur, $format->hauteur, 0, 0);
                }
                $im = $im->deconstructImages();
            }
            $im->setImageFormat(MediaExtension::gif);
            $storage->put(
                $this->preview_relative_path,
                $im->getImagesBlob()
            );
        } else {
            $im->setImageFormat(\pathinfo($this->preview_relative_path, \PATHINFO_EXTENSION));
            if ($this->largeur >= $format->largeur || $this->hauteur >= $format->hauteur || $this->largeur == "") {
                $im->thumbnailImage($format->largeur, $format->hauteur, true);
            }
            $storage->put(
                $this->preview_relative_path,
                $im->getImageBlob()
            );
        } //end if

        // * create thumb
        /** @var \App\Models\Format $format */
        $format = Format::withoutGlobalScope('App\Scopes\SystemScope')
            ->where('libelle', '=', 'thumb')->firstOrFail();
        if ($this->extension != MediaExtension::png) {
            $im->setImageBackgroundColor('#ffffff');
            $im->setImageAlphaChannel(\Imagick::ALPHACHANNEL_REMOVE);
            $im->mergeImageLayers(\Imagick::LAYERMETHOD_FLATTEN);
            $im->stripImage();
        }
        $im->thumbnailImage($format->largeur, $format->hauteur, true);
        $storage->put(
            $this->thumb_relative_path,
            $im->getImageBlob()
        );
        $im->destroy();
        unset($im);
    }

    /**
     * Renvoi le chemin attendu d'un média selon le format demandé
     *
     * @param \App\Models\Format $format
     * @return string
     * @throws \RuntimeException If Format is not handled.
     */
    public function getPath(Format $format): string
    {
        /** @var \Illuminate\Filesystem\FilesystemAdapter */
        $storage = Storage::disk('media');

        // * format spécifique
        if (!$format->system) {
            if (in_array($this->extension, ['gif', 'jpeg', 'jpg', 'png', 'pdf', 'ai', 'psd'])) {
                return $storage->path("/{$this->folder}/{$this->uid}_{$format->libelle}.{$format->extension->value}");
            }
            return $storage->path($this->relative_path);
        }
        // * format système (thumb et preview)
        if ($format->system) {
            if (in_array($this->extension, ['gif', 'jpeg', 'jpg', 'png'])) {
                // * Gestion du cas de format qui fixe l'extension.
                $file_extension = $format->extension != '' ? $format->extension : $this->extension;
                return $storage->path("/{$this->folder}/{$this->uid}_{$format->libelle}.{$file_extension}");
            } elseif (in_array($this->extension, ['pdf', 'ai', 'psd'])) {
                return $storage->path("/{$this->folder}/{$this->uid}_{$format->libelle}.png");
            }
            return $storage->path("/{$this->folder}/{$this->uid}.{$this->extension->value}");
        }
        throw new \RuntimeException("Unhandled Format $format->id $format->libelle");
    }

    /**
     * Convert the model instance to an array.
     *
     * @return array
     */
    public function toArray()
    {
        /** @var \Illuminate\Filesystem\FilesystemAdapter */
        $storage = Storage::disk('media');

        return array_merge(parent::toArray(), [
            'size' => ToolboxHelper::formatBytes($this->taille),
            'url' => $storage->url($this->relative_path),
            'preview_url' => $storage->url($this->preview_relative_path),
            'thumb_url' => $storage->url($this->thumb_relative_path),
            'jpeg_url' => $storage->url($this->jpeg_relative_path),
            'created_at' => $this->created_at->formatLocalized('%Y-%m-%d %H:%M:%S'),
            'updated_at' => $this->updated_at->formatLocalized('%Y-%m-%d %H:%M:%S')
        ]);
    }
}