<?php
session_start();

if (!isset($_SESSION['student_id'])) {
    header("Location: /rs_lab/student/login.php");
    exit;
}
include("../config.php");

$student_id = 1; // demo, later session-la varum

$sql = "SELECT * FROM learning_effort_index WHERE student_id = ?";
$stmt = $conn->prepare($sql);
$stmt->bind_param("i", $student_id);
$stmt->execute();
$result = $stmt->get_result();

if ($result->num_rows == 0) {
    die("LEI not calculated yet");
}

$data = $result->fetch_assoc();

$total_lei = $data['total_lei'];
$level     = $data['lei_level'];

$consistency = $data['consistency_score'];
$attempts    = $data['attempt_score'];
$improvement = $data['improvement_score'];
$style       = $data['style_match_score'];
?>
<!DOCTYPE html>
<html>
<head>
<title>My Learning Effort Index</title>
<style>
body {
    font-family: Arial, sans-serif;
    background: #f8fafc;
    padding: 20px;
}

.card {
    max-width: 700px;
    margin: auto;
    background: #fff;
    border-radius: 12px;
    padding: 25px;
    box-shadow: 0 8px 20px rgba(0,0,0,0.08);
}

.lei-score {
    text-align: center;
    font-size: 52px;
    font-weight: bold;
    color: #0b8c9f;
}

.level {
    text-align: center;
    font-size: 18px;
    margin-bottom: 20px;
}

.bar {
    margin: 12px 0;
}

.label {
    font-size: 14px;
    margin-bottom: 4px;
}

.progress {
    background: #e5e7eb;
    border-radius: 8px;
    overflow: hidden;
}

.progress div {
    height: 14px;
    background: #0b8c9f;
}

.tip {
    background: #ecfeff;
    padding: 15px;
    border-radius: 8px;
    margin-top: 20px;
    font-size: 14px;
}
</style>
</head>

<body>

<div class="card">
    <div class="lei-score"><?= $total_lei ?>/100</div>
    <div class="level">Learning Effort Level: <b><?= $level ?></b></div>

    <div class="bar">
        <div class="label">Consistency</div>
        <div class="progress"><div style="width: <?= $consistency * 4 ?>%"></div></div>
    </div>

    <div class="bar">
        <div class="label">Attempts</div>
        <div class="progress"><div style="width: <?= $attempts * 4 ?>%"></div></div>
    </div>

    <div class="bar">
        <div class="label">Improvement</div>
        <div class="progress"><div style="width: <?= $improvement * 3.3 ?>%"></div></div>
    </div>

    <div class="bar">
        <div class="label">Learning Style Match</div>
        <div class="progress"><div style="width: <?= $style * 5 ?>%"></div></div>
    </div>

    <div class="tip">
        <?php
        if ($total_lei >= 80) {
            echo "Excellent consistency! Keep going 🚀";
        } elseif ($total_lei >= 60) {
            echo "Good effort. Try learning more regularly to improve 👍";
        } else {
            echo "Start small. Regular practice will boost your LEI 💡";
        }
        ?>
    </div>
</div>

</body>
</html>
