<?php

namespace App\Models;

use Illuminate\Database\Eloquent\Builder;
use Illuminate\Database\Eloquent\Factories\HasFactory;
use Illuminate\Database\Eloquent\Model;
use Illuminate\Support\Facades\Storage;

class DisplayMedia extends Model
{
    /** @use HasFactory<\Database\Factories\DisplayMediaFactory> */
    use HasFactory;

    protected $table = 'display_media';

    protected $fillable = [
        'filename',
        'disk',
        'path',
        'external_url',
        'source_type',
        'type',
        'mime_type',
        'file_size',
        'thumbnail_path',
        'alt_text',
        'title',
        'collection',
        'metadata',
        'is_active',
    ];

    protected function casts(): array
    {
        return [
            'metadata' => 'array',
            'file_size' => 'integer',
            'is_active' => 'boolean',
        ];
    }

    // ========================================
    // ACCESSORS
    // ========================================

    public function getUrl(): string
    {
        if ($this->isExternal()) {
            return $this->external_url;
        }

        return Storage::disk($this->disk)->url($this->path);
    }

    public function getThumbnailUrl(): ?string
    {
        if ($this->thumbnail_path) {
            return Storage::disk($this->disk)->url($this->thumbnail_path);
        }

        if ($this->isUpload() && $this->isImage()) {
            return $this->getUrl();
        }

        return null;
    }

    // ========================================
    // TYPE CHECKS
    // ========================================

    public function isUpload(): bool
    {
        return $this->source_type === 'upload';
    }

    public function isExternal(): bool
    {
        return $this->source_type === 'external';
    }

    public function isImage(): bool
    {
        return $this->type === 'image';
    }

    public function isVideo(): bool
    {
        return $this->type === 'video';
    }

    // ========================================
    // DISPLAY HELPERS
    // ========================================

    public function getHumanFileSize(): string
    {
        if ($this->file_size === 0) {
            return $this->isExternal() ? 'Extern' : '0 B';
        }

        $units = ['B', 'KB', 'MB', 'GB'];
        $size = $this->file_size;
        $unitIndex = 0;

        while ($size >= 1024 && $unitIndex < count($units) - 1) {
            $size /= 1024;
            $unitIndex++;
        }

        return round($size, 1).' '.$units[$unitIndex];
    }

    public function getDisplayName(): string
    {
        return $this->title ?: $this->filename;
    }

    // ========================================
    // SCOPES
    // ========================================

    public function scopeImages(Builder $query): Builder
    {
        return $query->where('type', 'image');
    }

    public function scopeVideos(Builder $query): Builder
    {
        return $query->where('type', 'video');
    }

    public function scopeUploads(Builder $query): Builder
    {
        return $query->where('source_type', 'upload');
    }

    public function scopeExternals(Builder $query): Builder
    {
        return $query->where('source_type', 'external');
    }

    public function scopeActive(Builder $query): Builder
    {
        return $query->where('is_active', true);
    }

    public function scopeInCollection(Builder $query, string $collection): Builder
    {
        return $query->where('collection', $collection);
    }

    public function scopeSearch(Builder $query, string $term): Builder
    {
        return $query->where(function (Builder $query) use ($term): void {
            $query->where('filename', 'like', "%{$term}%")
                ->orWhere('title', 'like', "%{$term}%");
        });
    }
}