<?php

namespace App\Models;

use App\Enums\DrawActivityStatus;
use Dcat\Admin\Traits\HasDateTimeFormatter;
use Illuminate\Database\Eloquent\Builder;
use Illuminate\Database\Eloquent\Model;

class DrawActivity extends Model
{
    use HasDateTimeFormatter;

    /**
     * @var array
     */
    protected $attributes = [
        'status' => DrawActivityStatus::Created,
    ];

    /**
     * @var array
     */
    protected $casts = [
        'start_at' => 'datetime',
        'end_at' => 'datetime',
        'published_at' => 'datetime',
        'status' => DrawActivityStatus::class,
    ];

    /**
     * @var array
     */
    protected $fillable = [
        'name',
        'cover',
        'desc',
        'start_at',
        'end_at',
        'published_at',
        'bg_image',
        'bg_color',
        'status',
    ];

    /**
     * 仅查询已发布的活动
     */
    public function scopeOnlyPublished(Builder $builder): Builder
    {
        return $builder->where('status', '!=', DrawActivityStatus::Created)->where('published_at', '<=', now());
    }

    /**
     * 仅查询已创建的活动
     */
    public function scopeOnlyCreated(Builder $builder): Builder
    {
        return $builder->where('status', DrawActivityStatus::Created);
    }

    /**
     * 仅查询发布中的活动
     */
    public function scopeOnlyPublishing(Builder $builder): Builder
    {
        return $builder->where('status', DrawActivityStatus::Running)->where('published_at', '>', now());
    }

    /**
     * 仅查询未开始的活动
     */
    public function scopeOnlyUnstart(Builder $builder): Builder
    {
        $tz = now();

        return $builder->where('status', DrawActivityStatus::Running)
            ->where('published_at', '<=', $tz)
            ->whereNotNull('start_at')
            ->where('start_at', '>', $tz);
    }

    /**
     * 仅查询进行中的活动
     */
    public function scopeOnlyRunning(Builder $builder): Builder
    {
        $tz = now();

        return $builder->where('status', DrawActivityStatus::Running)
            ->where('published_at', '<=', $tz)
            ->where(function ($builder) use ($tz) {
                $builder->where(function ($builder) use ($tz) {
                    $builder->whereNull('start_at')->orWhere(function ($builder) use ($tz) {
                        $builder->whereNotNull('start_at')->where('start_at', '<=', $tz);
                    });
                })->where(function ($builder) use ($tz) {
                    $builder->whereNull('end_at')->orWhere(function ($builder) use ($tz) {
                        $builder->whereNotNull('end_at')->where('end_at', '>', $tz);
                    });
                });
            });
    }

    /**
     * 仅查询已结束的活动
     */
    public function scopeOnlyClosed(Builder $builder): Builder
    {
        return $builder->where('status', DrawActivityStatus::Closed)
            ->orWhere(function ($builder) {
                $tz = now();

                return $builder->where('status', '!=', DrawActivityStatus::Created)
                    ->where('published_at', '<=', $tz)
                    ->whereNotNull('end_at')
                    ->where('end_at', '<=', $tz);
            });
    }

    /**
     * 属于此活动的奖品
     */
    public function prizes()
    {
        return $this->hasMany(DrawActivityPrize::class, 'draw_activity_id');
    }

    /**
     * 确认此活动是否已发布
     *
     * @return bool
     */
    public function isPublished(): bool
    {
        return in_array($this->real_status, [
            DrawActivityStatus::Unstart,
            DrawActivityStatus::Running,
            DrawActivityStatus::Closed,
        ]);
    }

    /**
     * 确认此活动是否未开始
     *
     * @return bool
     */
    public function isUnstart(): bool
    {
        return $this->real_status === DrawActivityStatus::Unstart;
    }

    /**
     * 确认此活动是否已结束
     *
     * @return bool
     */
    public function isClosed(): bool
    {
        return $this->real_status === DrawActivityStatus::Closed;
    }

    public function getBgColorLabel()
    {
        if ($this->bg_color) {
            return "<span class='label shadow-100' style='background: {$this->bg_color};'>{$this->bg_color}</span>";
        }
    }

    /**
     * 获取此活动的真实状态
     *
     * @return DrawActivityStatus
     */
    public function getRealStatusAttribute(): DrawActivityStatus
    {
        if ($this->status === DrawActivityStatus::Running) {
            if (now()->lt($this->published_at)) {
                return DrawActivityStatus::Publishing;
            }

            if ($this->start_at && now()->lt($this->start_at)) {
                return DrawActivityStatus::Unstart;
            }

            if ($this->end_at && now()->gte($this->end_at)) {
                return DrawActivityStatus::Closed;
            }
        }

        return $this->status;
    }
}