<?php

namespace App\Services\Survey;

use App\Models\User;

class SurveyIdentity
{
    public const REGISTRATION_FIELDS = ['mobile', 'name', 'sex', 'birthday', 'email', 'company_name', 'company_position'];
    public const DISPLAY_FIELDS = ['name', 'no', 'mobile', 'company_name', 'company_position'];

    public static function complete(?User $user): bool
    {
        if (!$user) return false;
        foreach (self::REGISTRATION_FIELDS as $field) {
            if (!is_scalar($user->$field) || trim((string) $user->$field) === '') return false;
        }
        return preg_match('/^1\d{10}$/', (string) $user->mobile)
            && filter_var(trim($user->email), FILTER_VALIDATE_EMAIL)
            && User::hasCompleteBirthday((string) $user->birthday);
    }

    public static function respondent(?User $user, $data, $snapshot): array
    {
        $result = [];
        foreach (self::DISPLAY_FIELDS as $field) $result[$field] = $user->$field ?? null;
        $map = SurveySchema::answerMap($data);
        $snapshot = SurveySchema::arrayValue($snapshot);
        $questions = SurveySchema::arrayValue($snapshot['questions'] ?? array_values($map));
        $keyed = ($snapshot['version'] ?? 0) >= 2;
        foreach ($questions as $q) {
            $q['config'] = SurveySchema::arrayValue($q['config'] ?? []);
            $field = $q['config']['user_field'] ?? null;
            if (!in_array($field, self::DISPLAY_FIELDS, true)) continue;
            if (is_scalar($result[$field]) && trim((string) $result[$field]) !== '') continue;
            $answer = $map[(string) ($q['id'] ?? '')] ?? [];
            if (!empty($answer['hidden']) || !SurveySchema::visible($q, $questions, $map, $keyed)) continue;
            $value = $answer['value'] ?? null;
            if (is_scalar($value) && trim((string) $value) !== '') $result[$field] = trim((string) $value);
        }
        return $result;
    }
}