<?php

namespace App\Models;

use Illuminate\Database\Eloquent\Factories\HasFactory;
use Illuminate\Database\Eloquent\Model;
use Illuminate\Database\Eloquent\Relations\BelongsTo;
use Illuminate\Database\Eloquent\Relations\HasMany;

class Competition extends Model
{
    use HasFactory;

    public const STATUSES = [
        'draft',
        'published',
        'signup_open',
        'signup_closed',
        'reviewing',
        'ended',
    ];

    protected $fillable = [
        'slug',
        'name',
        'description',
        'pledge_content_html',
        'status',
        'published',
        'signup_open_at',
        'signup_close_at',
        'form_schema_id',
        'review_form_schema_id',
        'branding_json',
        'settings',
        'scoring_rules_json',
    ];

    /**
     * @var array<string, string>
     */
    protected $casts = [
        'published' => 'boolean',
        'signup_open_at' => 'datetime',
        'signup_close_at' => 'datetime',
        'branding_json' => 'array',
        'settings' => 'array',
        'scoring_rules_json' => 'array',
    ];

    public function tracks(): HasMany
    {
        return $this->hasMany(CompetitionTrack::class)->orderBy('sort');
    }

    public function signupChannels(): HasMany
    {
        return $this->hasMany(SignupChannel::class)->orderByDesc('id');
    }

    public function formSchemaDefinitions(): HasMany
    {
        return $this->hasMany(FormSchemaDefinition::class, 'competition_id');
    }

    /**
     * 嵌套路由参数 `{form_schema}` 的隐式绑定约定关系名为 formSchemas（见 Model::childRouteBindingRelationshipName）。
     */
    public function formSchemas(): HasMany
    {
        return $this->formSchemaDefinitions();
    }

    public function formSchema(): BelongsTo
    {
        return $this->belongsTo(FormSchemaDefinition::class, 'form_schema_id');
    }

    public function reviewFormSchema(): BelongsTo
    {
        return $this->belongsTo(FormSchemaDefinition::class, 'review_form_schema_id');
    }

    /**
     * 评审端是否开放登录/访问。settings.review_portal.enabled 缺省或非 false 时视为开启。
     */
    public function isReviewPortalEnabled(): bool
    {
        $portal = $this->reviewPortalSettings();
        if ($portal === null || ! array_key_exists('enabled', $portal)) {
            return true;
        }

        return $portal['enabled'] !== false
            && $portal['enabled'] !== 0
            && $portal['enabled'] !== '0'
            && $portal['enabled'] !== 'false';
    }

    /**
     * 关闭评审端时展示给评审员的说明（登录弹窗 / 接口提示）。
     */
    public function reviewPortalClosedMessage(): string
    {
        $portal = $this->reviewPortalSettings();
        $message = is_array($portal) ? trim((string) ($portal['message'] ?? '')) : '';
        if ($message === '') {
            return '评审通道暂未开放，请稍后再试';
        }

        return mb_substr($message, 0, 2000);
    }

    /**
     * 公开接口用的评审端开关摘要。
     *
     * @return array{enabled: bool, message: string}
     */
    public function reviewPortalPublicPayload(): array
    {
        $enabled = $this->isReviewPortalEnabled();
        $portal = $this->reviewPortalSettings();
        $stored = is_array($portal) ? trim((string) ($portal['message'] ?? '')) : '';

        return [
            'enabled' => $enabled,
            'message' => $enabled
                ? mb_substr($stored, 0, 2000)
                : $this->reviewPortalClosedMessage(),
        ];
    }

    /**
     * @return array<string, mixed>|null
     */
    private function reviewPortalSettings(): ?array
    {
        $settings = is_array($this->settings) ? $this->settings : [];
        $portal = $settings['review_portal'] ?? null;

        return is_array($portal) ? $portal : null;
    }
}