<?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_title',
        'pledge_title_en',
        'pledge_subtitle',
        'pledge_subtitle_en',
        'pledge_content_html',
        'pledge_content_html_en',
        'status',
        'published',
        'signup_open_at',
        'signup_close_at',
        'form_schema_id',
        'review_form_schema_id',
        'audience_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 audienceSessions(): HasMany
    {
        return $this->hasMany(AudienceSession::class)->orderBy('sort')->orderBy('id');
    }

    public function competitionAdmins(): HasMany
    {
        return $this->hasMany(CompetitionAdmin::class);
    }

    /** 嵌套路由 competitions.admins 的绑定关系名 */
    public function admins(): HasMany
    {
        return $this->competitionAdmins();
    }

    public function audienceRegistrations(): HasMany
    {
        return $this->hasMany(AudienceRegistration::class);
    }

    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');
    }

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

    /**
     * 报名截止后是否开启「指定用户仅可补传/删除附件」。
     */
    public function isPostCloseFileEditEnabled(): bool
    {
        $cfg = $this->postCloseFileEditSettings();
        if ($cfg === null || ! array_key_exists('enabled', $cfg)) {
            return false;
        }

        return $cfg['enabled'] === true
            || $cfg['enabled'] === 1
            || $cfg['enabled'] === '1'
            || $cfg['enabled'] === 'true';
    }

    /**
     * @return list<string> 规范化后的登录手机号白名单
     */
    public function postCloseFileEditMobiles(): array
    {
        $cfg = $this->postCloseFileEditSettings();
        $raw = is_array($cfg) ? ($cfg['user_mobiles'] ?? null) : null;
        if (! is_array($raw)) {
            return [];
        }

        $out = [];
        foreach ($raw as $item) {
            $mobile = self::normalizeAllowlistMobile($item);
            // 勿用手机号做关联数组 key：PHP 会把纯数字字符串键转成 int，导致严格比较失败
            if ($mobile !== '' && ! in_array($mobile, $out, true)) {
                $out[] = $mobile;
            }
        }

        return $out;
    }

    public function allowsPostCloseFileEditForMobile(?string $mobile): bool
    {
        if (! $this->isPostCloseFileEditEnabled()) {
            return false;
        }

        $normalized = self::normalizeAllowlistMobile($mobile);
        if ($normalized === '') {
            return false;
        }

        return in_array($normalized, $this->postCloseFileEditMobiles(), true);
    }

    public static function normalizeAllowlistMobile(mixed $mobile): string
    {
        $s = preg_replace('/\s+/', '', trim((string) $mobile)) ?? '';

        return $s;
    }

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

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