<?php

namespace App\Models;

use App\Enums\MediaDiskEnum;
use Illuminate\Database\Eloquent\Factories\HasFactory;
use Illuminate\Database\Eloquent\Model;
use Illuminate\Support\Facades\Storage;

class Medium extends Model
{
    use HasFactory;
    protected $fillable = [
        'filename',
        'disk',
        'path',
        'size',
        'url',
        'mime_type'
    ];

    protected $casts = [
        'disk' => MediaDiskEnum::class,
    ];

    public function getFullUrlAttribute()
    {
        if ($this->disk === MediaDiskEnum::Public) {
            return Storage::disk('public')->path($this->path);
        }elseif($this->disk === MediaDiskEnum::Private){
            return Storage::disk('private')->path($this->path);
        }

        return $this->url ?? null;
    }

    public function getStorageDisk()
    {
        return Storage::disk($this->disk?->value ?? 'public');
    }

    public function exists()
    {
        return $this->getStorageDisk()->exists($this->path);
    }

    public function getContents()
    {
        return $this->getStorageDisk()->get($this->path);
    }

    public function deleteFile()
    {
        if ($this->exists()) {
            return $this->getStorageDisk()->delete($this->path);
        }
        return false;
    }

    public function getHumanSizeAttribute()
    {
        $bytes = $this->size;
        $units = ['B', 'KB', 'MB', 'GB', 'TB'];

        for ($i = 0; $bytes > 1024 && $i < count($units) - 1; $i++) {
            $bytes /= 1024;
        }

        return round($bytes, 2) . ' ' . $units[$i];
    }

    public function isPublic()
    {
        return $this->disk === MediaDiskEnum::Public;
    }

    public function isPrivate()
    {
        return $this->disk === MediaDiskEnum::Private;
    }

    public function assignments()
    {
        return $this->hasMany(MediaAssignment::class , 'media_id' , 'id');
    }

    public function reports()
    {
        return $this->morphedByMany(
            \App\Models\Report::class,
            'mediable',
            'media_assignments',
            'media_id',
            'mediable_id'
        );
    }

    public function documents()
    {
        return $this->morphedByMany(
            \App\Models\Document::class,
            'mediable',
            'media_assignments',
            'media_id',
            'mediable_id'
        );
    }

    public function users()
    {
        return $this->hasMany(User::class , 'media_id' , 'id');
    }
}