<?php
session_start();
if (!isset($_SESSION["loggedin"]) || $_SESSION["loggedin"] !== true) {
    header("location: ../index.php");
    exit;
}

require_once '../includes/db_assessment.php';

if ($_SERVER["REQUEST_METHOD"] == "POST") {
    
    $cid = $_SESSION['cid'];
    $assess_year = $_POST['assess_year'];
    $fullname = $_POST['fullname'] ?? '';
    $position = $_POST['position'] ?? '';
    $department = $_POST['department'] ?? '';
    $computer_use = $_POST['computer_use'] ?? '2';

    $rules_json = null;
    $sla_json = null;

    if ($computer_use == '1') {
        $rules_data = [];
        $sla_data = [];
        
        foreach ($_POST as $key => $val) {
            // Check for rules: r_{id}_k, r_{id}_u, r_{id}_p
            if (preg_match('/^r_(\d+)_(k|u|p)$/', $key, $matches)) {
                $id = $matches[1];
                $type = $matches[2];
                $rules_data[$id][$type] = $val;
            }
            // Check for sla: sla_{id}_score, sla_{id}_comment
            elseif (preg_match('/^sla_(\d+)_(score|comment)$/', $key, $matches)) {
                $id = $matches[1];
                $type = $matches[2];
                $sla_data[$id][$type] = $val;
            }
        }
        $rules_json = json_encode($rules_data, JSON_UNESCAPED_UNICODE);
        $sla_json = json_encode($sla_data, JSON_UNESCAPED_UNICODE);
    }

    $sql = "INSERT INTO it_assessments (assess_year, hr_cid, fullname, position, department, computer_use, rules_data, sla_data) 
            VALUES (:assess_year, :hr_cid, :fullname, :position, :department, :computer_use, :rules_data, :sla_data)";
    
    $params = [
        ':assess_year' => $assess_year,
        ':hr_cid' => $cid,
        ':fullname' => $fullname,
        ':position' => $position,
        ':department' => $department,
        ':computer_use' => $computer_use,
        ':rules_data' => $rules_json,
        ':sla_data' => $sla_json
    ];

    try {
        $stmt = $pdo_assess->prepare($sql);
        $stmt->execute($params);
        $_SESSION['success_msg'] = "บันทึกข้อมูลเรียบร้อยแล้ว";
    } catch (PDOException $e) {
        if ($e->errorInfo[1] == 1062) {
            $_SESSION['error_msg'] = "ท่านได้ทำแบบประเมินสำหรับปีนี้ไปแล้ว";
        } else {
            $_SESSION['error_msg'] = "เกิดข้อผิดพลาดในการบันทึกข้อมูล: " . $e->getMessage();
        }
    }

    header("location: ../form.php");
    exit;

} else {
    header("location: ../form.php");
    exit;
}