<?php

namespace Api\Models;

use Api\Core\Model;

class Assessment extends Model {
    protected static $table = 'assessments';

    public static function getBySchool($school_id) {
        return static::where('school_id', $school_id);
    }

    public static function saveMarks($assessment_id, $marks) {
        $db = db();
        $db->beginTransaction();
        try {
            $stmt = $db->prepare("INSERT INTO marks (assessment_id, learner_id, marks_obtained) VALUES (:assessment_id, :learner_id, :marks_obtained) ON DUPLICATE KEY UPDATE marks_obtained = VALUES(marks_obtained)");
            foreach ($marks as $mark) {
                $stmt->execute([
                    'assessment_id' => $assessment_id,
                    'learner_id' => $mark['learner_id'],
                    'marks_obtained' => $mark['marks_obtained']
                ]);
            }
            $db->commit();
            return true;
        } catch (\Exception $e) {
            $db->rollBack();
            return false;
        }
    }
}