<?php

namespace App\Models\Forms;

use App\Events\Models\FormCreated;
use App\Models\Integration\FormIntegration;
use App\Models\Integration\FormZapierWebhook;
use App\Models\Traits\CachableAttributes;
use App\Models\Traits\CachesAttributes;
use App\Models\User;
use App\Models\Workspace;
use Database\Factories\FormFactory;
use Illuminate\Database\Eloquent\Casts\Attribute;
use Illuminate\Database\Eloquent\Factories\HasFactory;
use Illuminate\Database\Eloquent\Model;
use Illuminate\Database\Eloquent\SoftDeletes;
use Illuminate\Support\Facades\DB;
use Illuminate\Support\Str;
use Spatie\Sluggable\HasSlug;
use Spatie\Sluggable\SlugOptions;
use Stevebauman\Purify\Facades\Purify;
use Carbon\Carbon;

class Form extends Model implements CachableAttributes
{
    use CachesAttributes;

    use HasFactory;
    use HasSlug;
    use SoftDeletes;

    public const DARK_MODE_VALUES = ['auto', 'light', 'dark'];

    public const SIZES = ['sm', 'md', 'lg'];

    public const BORDER_RADIUS = ['none', 'small', 'full'];

    public const THEMES = ['default', 'simple', 'notion'];

    public const WIDTHS = ['centered', 'full'];

    public const VISIBILITY = ['public', 'draft', 'closed'];

    public const LANGUAGES = ['en', 'fr', 'hi', 'es', 'ar', 'zh', 'ja', 'bn', 'pt', 'ru', 'ur', 'pa', 'de', 'jv', 'ko', 'vi', 'te', 'mr', 'ta', 'tr', 'sk', 'cs', 'eu', 'gl', 'ca', 'sv', 'pl'];

    protected $fillable = [
        'workspace_id',
        'creator_id',
        'properties',
        'removed_properties',

        'title',
        'tags',
        'visibility',

        // Customization
        'language',
        'font_family',
        'custom_domain',
        'size',
        'border_radius',
        'theme',
        'width',
        'layout_rtl',
        'cover_picture',
        'logo_picture',
        'dark_mode',
        'color',
        'uppercase_labels',
        'no_branding',
        'transparent_background',

        // Custom Code
        'custom_code',

        // Submission
        'submit_button_text',
        'database_fields_update',
        're_fillable',
        're_fill_button_text',
        'submitted_text',
        'redirect_url',
        'use_captcha',
        'captcha_provider',
        'closes_at',
        'closed_text',
        'max_submissions_count',
        'max_submissions_reached_text',
        'editable_submissions',
        'editable_submissions_button_text',
        'confetti_on_submission',
        'show_progress_bar',
        'auto_save',
        'auto_focus',
        'enable_partial_submissions',

        // Security & Privacy
        'can_be_indexed',
        'password',

        // Custom SEO
        'seo_meta',
    ];

    protected function casts(): array
    {
        return [
            'properties' => 'array',
            'database_fields_update' => 'array',
            'closes_at' => 'datetime',
            'tags' => 'array',
            'removed_properties' => 'array',
            'seo_meta' => 'object',
            'enable_partial_submissions' => 'boolean',
            'auto_save' => 'boolean',
        ];
    }

    protected $appends = [
        'share_url',
    ];

    protected $hidden = [
        'workspace_id',
        'redirect_url',
        'database_fields_update',
        'password',
        'tags',
        'removed_properties',
    ];

    protected $cachableAttributes = [
        'is_pro',
        'views_count',
        'max_file_size',
    ];

    /**
     * The event map for the model.
     *
     * @var array
     */
    protected $dispatchesEvents = [
        'created' => FormCreated::class,
    ];

    public function getIsProAttribute()
    {
        return $this->remember('is_pro', 15 * 60, function (): ?bool {
            return $this->workspace?->is_pro === true;
        });
    }

    public function getShareUrlAttribute()
    {
        if ($this->custom_domain) {
            return 'https://' . $this->custom_domain . '/forms/' . $this->slug;
        }

        return front_url('/forms/' . $this->slug);
    }

    public function getSubmissionsUrlAttribute()
    {
        if ($this->custom_domain) {
            return 'https://' . $this->custom_domain . '/forms/' . $this->slug . '/show/submissions';
        }

        return front_url('/forms/' . $this->slug . '/show/submissions');
    }

    public function getEditUrlAttribute()
    {
        return front_url('/forms/' . $this->slug . '/show');
    }

    public function getSubmissionsCountAttribute()
    {
        return $this->submissions()->where('status', FormSubmission::STATUS_COMPLETED)->count();
    }

    public function getViewsCountAttribute()
    {
        return $this->remember('views_count', 15 * 60, function (): int {
            if (config('database.default') === 'mysql') {
                return (int) ($this->views()->count() +
                    $this->statistics()->sum(DB::raw("json_extract(data, '$.views')")));
            }

            return $this->views()->count() +
                $this->statistics()->sum(DB::raw("cast(data->>'views' as integer)"));
        });
    }

    public function setSubmittedTextAttribute($value)
    {
        // Strip out unwanted html
        $this->attributes['submitted_text'] = Purify::clean($value);
    }

    public function setTagsAttribute($value)
    {
        if ($value == '') {
            $value = null;
        }
        $this->attributes['tags'] = json_encode($value);
    }

    public function setClosesAtAttribute($value)
    {
        $this->attributes['closes_at'] = ($value) ? Carbon::parse($value)->setTimezone('UTC') : null;
    }

    public function getClosesAtAttribute($value)
    {
        if (!$value) {
            return $value;
        }
        // Retrieve the desired timezone from the request or default to 'UTC'
        $timezone = request()->get('timezone', 'UTC');
        return Carbon::parse($value)->setTimezone($timezone)->toIso8601String();
    }

    public function getIsClosedAttribute()
    {
        return $this->visibility === 'closed' || ($this->closes_at && now()->gt($this->closes_at));
    }

    public function getFormPendingSubmissionKeyAttribute()
    {
        if ($this->updated_at?->timestamp) {
            return 'openform-' . $this->id . '-pending-submission-' . substr($this->updated_at?->timestamp, -6);
        }

        return null;
    }

    public function getMaxNumberOfSubmissionsReachedAttribute()
    {
        return $this->max_submissions_count && $this->max_submissions_count <= $this->submissions_count;
    }

    public function setClosedTextAttribute($value)
    {
        $this->attributes['closed_text'] = Purify::clean($value);
    }

    public function setMaxSubmissionsReachedTextAttribute($value)
    {
        $this->attributes['max_submissions_reached_text'] = Purify::clean($value);
    }

    public function getHasPasswordAttribute()
    {
        return !empty($this->password);
    }

    public function getMaxFileSizeAttribute()
    {
        return $this->remember('max_file_size', 15 * 60, function (): int {
            return $this->workspace->max_file_size;
        });
    }

    protected function removedProperties(): Attribute
    {
        return Attribute::make(
            get: function ($value) {
                return $value ? json_decode($value, true) : [];
            }
        );
    }

    /**
     * Relationships
     */
    public function workspace()
    {
        return $this->belongsTo(Workspace::class);
    }

    public function creator()
    {
        return $this->belongsTo(User::class, 'creator_id');
    }

    public function submissions()
    {
        return $this->hasMany(FormSubmission::class);
    }

    public function views()
    {
        return $this->hasMany(FormView::class);
    }

    public function statistics()
    {
        return $this->hasMany(FormStatistic::class);
    }

    public function zappierHooks()
    {
        return $this->hasMany(FormZapierWebhook::class);
    }

    public function integrations()
    {
        return $this->hasMany(FormIntegration::class);
    }

    /**
     * Config/options
     */
    public function getSlugOptions(): SlugOptions
    {
        return SlugOptions::create()
            ->doNotGenerateSlugsOnUpdate()
            ->generateSlugsFrom(function (Form $form) {
                return $form->title . ' ' . Str::random(6);
            })
            ->saveSlugsTo('slug');
    }

    public static function newFactory()
    {
        return FormFactory::new();
    }
}