<?php

namespace App\Models;

use App\Casts\HtmlColor;
use App\Lib\Helpers\FileStorageHelper;
use App\Traits\Models\ActivityLog;
use Illuminate\Database\Eloquent\Collection;
use Illuminate\Database\Eloquent\Factories\HasFactory;
use Illuminate\Database\Eloquent\Model;
use Illuminate\Database\Eloquent\Relations\BelongsTo;
use Illuminate\Support\Facades\Cache;

/**
 * @property string $title Slide title.
 * @property string $subtitle Slide subtitle.
 * @property \App\Models\Approach|null $approach_id Slide approach (demarche) associated.
 * @property string $background Slide background.
 * @property string $background_alt Background alt attribute.
 * @property string $background_title Background title attribute.
 * @property string|null $picture Slide picture.
 * @property string|null $picture_alt Slide alt attribute.
 * @property string|null $picture_title Slide title attribute.
 * @property string|null $button_1_text Slide button n°1 text.
 * @property string|null $button_1_url Slide button n°1 url.
 * @property string|null $button_2_text Slide button n°2 text.
 * @property string|null $button_2_url Slide button n°2 url.
 * @property int $color_block Slide block background color.
 * @property int|null $button_1_color_text Slide button n°1 text color.
 * @property int|null $button_1_color_background Slide button n°1 background color.
 * @property int|null $button_2_color_text Slide button n°2 text color.
 * @property int|null $button_2_color_background Slide button n°2 background color.
 * @property int $order Slide order.
 * @property bool $button_1_status Slide button n°1 publish status.
 * @property bool $button_1_target Slide button n°1 target.
 * @property bool $button_2_status Slide button n°2 publish status.
 * @property bool $button_2_target Slide button n°2 target.
 * @property bool $new Slide picto new.
 * @property bool $published Slide publish status.
 * @property \Illuminate\Support\Carbon|null $published_at Slide published_at.
 * @property \Illuminate\Support\Carbon|null $unpublished_at Slide unpublished_at.
 * @property-read \Illuminate\Support\Carbon $created_at                Created date.
 * @property-read \Illuminate\Support\Carbon $updated_at                Updated date.
 */
class MainSlide extends Model
{
    use ActivityLog;
    use HasFactory;

    /**
     * The attributes that are mass assignable.
     *
     * @var array<int, string>
     */
    protected $fillable = [
        'title',
        'subtitle',
        'approach_id',
        'background',
        'background_alt',
        'background_title',
        'picture',
        'picture_alt',
        'picture_title',
        'button_1_status',
        'button_1_text',
        'button_1_url',
        'button_1_target',
        'button_2_status',
        'button_2_text',
        'button_2_url',
        'button_2_target',
        'color_block',
        'button_1_color_text',
        'button_1_color_background',
        'button_2_color_text',
        'button_2_color_background',
        'order',
        'new',
        'published',
        'published_at',
        'unpublished_at',
    ];

    /**
     * The attributes that should be cast.
     *
     * @var array<string, string>
     */
    protected $casts = [
        'button_1_status'           => 'boolean',
        'button_1_target'           => 'boolean',
        'button_2_status'           => 'boolean',
        'button_2_target'           => 'boolean',
        'color_block'               => HtmlColor::class,
        'button_1_color_text'       => HtmlColor::class,
        'button_1_color_background' => HtmlColor::class,
        'button_2_color_text'       => HtmlColor::class,
        'button_2_color_background' => HtmlColor::class,
        'published_at'              => 'datetime',
        'unpublished_at'            => 'datetime',
    ];

    /**
     * Perform any actions required after the model boots.
     */
    protected static function booted(): void
    {
        static::creating(function (self $mainSlide) {
            self::setOrder($mainSlide);
            self::makeStatusSense($mainSlide);
            self::setButtons($mainSlide);
            self::setImage($mainSlide);
            $mainSlide->background = FileStorageHelper::storeFile($mainSlide, $mainSlide->background, true);
        });
        static::created(function () {
            self::resetCache();
        });
        static::updating(function (self $mainSlide) {
            self::makeStatusSense($mainSlide);
            self::setButtons($mainSlide);
            self::setImage($mainSlide);
            $mainSlide->background = FileStorageHelper::storeFile($mainSlide, $mainSlide->background, true);
        });
        static::updated(function (self $mainSlide) {
            FileStorageHelper::removeOldFile($mainSlide, 'background');
            FileStorageHelper::removeOldFile($mainSlide, 'picture');
            self::resetCache();
        });
        static::deleted(function (self $mainSlide) {
            FileStorageHelper::removeFile($mainSlide, 'background');
            FileStorageHelper::removeFile($mainSlide, 'picture');
            self::resetCache();
        });
    }

    // * METHODS

    /**
     * Set model's published date.
     */
    private static function setImage(self $mainSlide): void
    {
        if (is_null($mainSlide->picture)) {
            $mainSlide->picture_alt   = null;
            $mainSlide->picture_title = null;
        } else {
            $mainSlide->picture = FileStorageHelper::storeFile($mainSlide, $mainSlide->picture, true);
        }
    }

    /**
     * Set model's published date.
     */
    private static function setButtons(self $mainSlide): void
    {
        if (! $mainSlide->button_1_status) {
            $mainSlide->button_1_text             = null;
            $mainSlide->button_1_url              = null;
            $mainSlide->button_1_target           = false;
            $mainSlide->button_1_color_text       = null;
            $mainSlide->button_1_color_background = null;
        }
        if (! $mainSlide->button_2_status) {
            $mainSlide->button_2_text             = null;
            $mainSlide->button_2_url              = null;
            $mainSlide->button_2_target           = false;
            $mainSlide->button_2_color_text       = null;
            $mainSlide->button_2_color_background = null;
        }
    }

    /**
     * Adjusts mainSlide status using current status and published dates.
     */
    private static function makeStatusSense(self $mainSlide): void
    {
        /** @var \Carbon\Carbon|null */
        $published_at = $mainSlide->published_at;
        /** @var \Carbon\Carbon|null */
        $unpublished_at = $mainSlide->unpublished_at;
        $wantedStatus   = $mainSlide->published;
        if ($published_at or $unpublished_at) {
            $mainSlide->published = $mainSlide->planificated_status;
        }
        if ($wantedStatus !== $mainSlide->published) {
            session()->flash('bo.info', \trans(
                'La publication est modifiée en concordance avec les dates enregistrées.
                Pour modifier l\'état de publication, veuillez modifier ou enlever les dates correspondantes.'
            ));
        }
    }

    /**
     * Getter the current status following planification dates planificated_status.
     */
    public function getPlanificatedStatusAttribute(): bool
    {
        /** @var \Carbon\Carbon|null */
        $published_at = $this->published_at;
        /** @var \Carbon\Carbon|null */
        $unpublished_at = $this->unpublished_at;
        if ($published_at and $unpublished_at) {
            return $unpublished_at->greaterThanOrEqualTo(now()) and $published_at->lessThan(now());
        }
        if ($published_at) {
            return $published_at->lessThan(now());
        }
        if ($unpublished_at) {
            return $unpublished_at->greaterThanOrEqualTo(now());
        }

        return false;
    }

    /**
     * Set model's order after the last element of the list.
     */
    private static function setOrder(self $mainSlide): void
    {
        $mainSlide->order = \intval(self::query()->max('order')) + 1;
    }

    /**
     * Reset all cache elements related to this model.
     */
    private static function resetCache(): void
    {
        Cache::forget('publishedMainSlidesOrderedByOrderWithApproaches');
        self::getPublishedOrderedWithApproaches();
    }

    /**
     * Get all published main slides ordered by order with approaches.
     */
    public static function getPublishedOrderedWithApproaches(): Collection
    {
        return Cache::remember('publishedMainSlidesOrderedByOrderWithApproaches', 86400, function () {
            return self::query()
                ->where('published', true)
                ->orderBy('order')
                ->with('approach')
                ->get();
        });
    }

    // * RELATIONSHIPS

    /**
     * Get Approach of the MainSlide (morph-to-many relationship).
     */
    public function approach(): BelongsTo
    {
        return $this->belongsTo(Approach::class);
    }
}