Initial import

includes/functions.php

@@ -0,0 +1,741 @@
+<?php
+require_once __DIR__ . '/../db.php';
+
+function getCurricula() {
+    return getDB()->query("SELECT * FROM curricula ORDER BY code")->fetchAll();
+}
+
+function getCurriculum($id) {
+    $stmt = getDB()->prepare("SELECT * FROM curricula WHERE id = ?");
+    $stmt->execute([$id]);
+    return $stmt->fetch();
+}
+
+function getCourseGroups($curriculum_id, $parent_id = null) {
+    if ($parent_id === null) {
+        $stmt = getDB()->prepare("SELECT * FROM course_groups WHERE curriculum_id = ? AND parent_id IS NULL ORDER BY sort_order");
+        $stmt->execute([$curriculum_id]);
+    } else {
+        $stmt = getDB()->prepare("SELECT * FROM course_groups WHERE parent_id = ? ORDER BY sort_order");
+        $stmt->execute([$parent_id]);
+    }
+    return $stmt->fetchAll();
+}
+
+function getCoursesByGroup($group_id) {
+    $stmt = getDB()->prepare("SELECT * FROM courses WHERE group_id = ? ORDER BY sort_order");
+    $stmt->execute([$group_id]);
+    return $stmt->fetchAll();
+}
+
+function getStudents($curriculum_id = null) {
+    if ($curriculum_id === null && isStudent()) {
+        $stmt = getDB()->prepare("
+            SELECT s.*, c.code AS curriculum_code, c.name_th AS curriculum_name
+            FROM students s
+            JOIN curricula c ON s.curriculum_id = c.id
+            WHERE s.id = ?
+            ORDER BY s.student_code
+        ");
+        $stmt->execute([getCurrentUserId()]);
+        return $stmt->fetchAll();
+    }
+    if ($curriculum_id === null && isAdvisor()) {
+        $stmt = getDB()->prepare("
+            SELECT s.*, c.code AS curriculum_code, c.name_th AS curriculum_name
+            FROM students s
+            JOIN curricula c ON s.curriculum_id = c.id
+            WHERE s.advisor_id = ?
+            ORDER BY s.student_code
+        ");
+        $stmt->execute([getCurrentUserId()]);
+        return $stmt->fetchAll();
+    }
+    if ($curriculum_id) {
+        $stmt = getDB()->prepare("
+            SELECT s.*, c.code AS curriculum_code, c.name_th AS curriculum_name
+            FROM students s
+            JOIN curricula c ON s.curriculum_id = c.id
+            WHERE s.curriculum_id = ?
+            ORDER BY s.student_code
+        ");
+        $stmt->execute([$curriculum_id]);
+        return $stmt->fetchAll();
+    }
+    return getDB()->query("
+        SELECT s.*, c.code AS curriculum_code, c.name_th AS curriculum_name
+        FROM students s
+        JOIN curricula c ON s.curriculum_id = c.id
+        ORDER BY s.student_code
+    ")->fetchAll();
+}
+
+function getStudent($id) {
+    $stmt = getDB()->prepare("
+        SELECT s.*, c.code AS curriculum_code, c.name_th AS curriculum_name, c.total_credits
+        FROM students s
+        JOIN curricula c ON s.curriculum_id = c.id
+        WHERE s.id = ?
+    ");
+    $stmt->execute([$id]);
+    return $stmt->fetch();
+}
+
+function getFacultyList() {
+    return [
+        '12' => 'คณะนวัตกรรมดิจิทัลเทคโนโลยี',
+        '11' => 'คณะบริหารธุรกิจ',
+        '13' => 'คณะศึกษาศาสตร์และศิลปศาสตร์',
+        '14' => 'คณะบัญชี',
+        '15' => 'คณะนิติศาสตร์และรัฐศาสตร์',
+    ];
+}
+
+function getTransferCreditsTotal($student_id) {
+    $stmt = getDB()->prepare("SELECT COALESCE(SUM(credits), 0) FROM student_courses WHERE student_id = ? AND source_type = 'transfer'");
+    $stmt->execute([$student_id]);
+    return floatval($stmt->fetchColumn());
+}
+
+function getCompletedCreditsTotal($student_id) {
+    $stmt = getDB()->prepare("SELECT COALESCE(SUM(credits), 0) FROM student_courses WHERE student_id = ?");
+    $stmt->execute([$student_id]);
+    return floatval($stmt->fetchColumn());
+}
+
+function getStudentCourses($student_id) {
+    $stmt = getDB()->prepare("
+        SELECT sc.*, c.code AS curriculum_course_code
+        FROM student_courses sc
+        LEFT JOIN courses c ON sc.course_id = c.id
+        WHERE sc.student_id = ?
+        ORDER BY sc.course_code
+    ");
+    $stmt->execute([$student_id]);
+    return $stmt->fetchAll();
+}
+
+function getStudentCoursesByGroup($student_id, $group_id) {
+    $stmt = getDB()->prepare("
+        SELECT sc.* FROM student_courses sc
+        JOIN courses c ON sc.course_id = c.id
+        WHERE sc.student_id = ? AND c.group_id = ?
+    ");
+    $stmt->execute([$student_id, $group_id]);
+    return $stmt->fetchAll();
+}
+
+/**
+ * Build recursive tree of course groups for a curriculum
+ */
+function buildGroupTree($curriculum_id, $parent_id = null) {
+    $groups = getCourseGroups($curriculum_id, $parent_id);
+    $tree = [];
+    foreach ($groups as $g) {
+        $children = buildGroupTree($curriculum_id, $g['id']);
+        $courses = getCoursesByGroup($g['id']);
+        $node = [
+            'group' => $g,
+            'children' => $children,
+            'courses' => $courses,
+            'total_credits' => 0,
+            'completed_credits' => 0,
+        ];
+        // Calculate total credits from courses
+        foreach ($courses as $c) {
+            $node['total_credits'] += $c['credits'];
+        }
+        // Add children totals
+        foreach ($children as $ch) {
+            $node['total_credits'] += $ch['total_credits'];
+        }
+        $tree[] = $node;
+    }
+    return $tree;
+}
+
+function getStudentSummary($student_id) {
+    $student = getStudent($student_id);
+    if (!$student) return null;
+
+    $tree = buildGroupTree($student['curriculum_id']);
+
+    $student_courses = getStudentCourses($student_id);
+    $completed_map = [];
+    foreach ($student_courses as $sc) {
+        $completed_map[$sc['course_code']] = $sc;
+    }
+
+    // Mark completed courses recursively
+    $total_completed = 0;
+    foreach ($student_courses as $sc) {
+        $total_completed += $sc['credits'];
+    }
+
+    $markCompleted = function(&$nodes) use (&$markCompleted, $completed_map) {
+        foreach ($nodes as &$node) {
+            foreach ($node['courses'] as &$course) {
+                if (isset($completed_map[$course['code']])) {
+                    $course['_completed'] = $completed_map[$course['code']];
+                    $node['completed_credits'] += $course['credits'];
+                }
+            }
+            if (!empty($node['children'])) {
+                $markCompleted($node['children']);
+                // Sum children completed credits
+                foreach ($node['children'] as $ch) {
+                    $node['completed_credits'] += $ch['completed_credits'];
+                }
+            }
+        }
+    };
+    $markCompleted($tree);
+
+    return [
+        'student' => $student,
+        'groups' => $tree,
+        'total_completed' => $total_completed,
+        'student_courses' => $student_courses,
+        'completed_map' => $completed_map
+    ];
+}
+
+function findCourseInCurriculum($curriculum_id, $code) {
+    $stmt = getDB()->prepare("
+        SELECT c.* FROM courses c
+        JOIN course_groups cg ON c.group_id = cg.id
+        WHERE cg.curriculum_id = ? AND c.code = ?
+    ");
+    $stmt->execute([$curriculum_id, $code]);
+    return $stmt->fetch();
+}
+
+function getGroupSelectOptions($curriculum_id, $selected_id = null, $parent_id = null, $prefix = '') {
+    $groups = getCourseGroups($curriculum_id, $parent_id);
+    $html = '';
+    foreach ($groups as $g) {
+        $sel = $g['id'] == $selected_id ? ' selected' : '';
+        $html .= '<option value="' . $g['id'] . '"' . $sel . '>' . $prefix . htmlspecialchars($g['name_th']) . '</option>';
+        $html .= getGroupSelectOptions($curriculum_id, $selected_id, $g['id'], $prefix . '— ');
+    }
+    return $html;
+}
+
+function getGradeOptions($selected = null) {
+    $grades = ['A', 'B+', 'B', 'C+', 'C', 'D+', 'D', 'F', 'S', 'U', 'กำลังเรียน'];
+    $html = '';
+    foreach ($grades as $g) {
+        $sel = $g === $selected ? ' selected' : '';
+        $html .= '<option value="' . $g . '"' . $sel . '>' . $g . '</option>';
+    }
+    return $html;
+}
+
+function getCourseTypeOptions($selected = null) {
+    $types = [
+        'เรียนปกติ' => 'เรียนปกติ',
+        'เทียบโอนรายวิชา' => 'เทียบโอนรายวิชา',
+        'เทียบโอนกลุ่มวิชา' => 'เทียบโอนกลุ่มวิชา',
+        'กิจกรรม/สหกิจศึกษา' => 'กิจกรรม/สหกิจศึกษา',
+        'ฝึกอบรม' => 'ฝึกอบรม',
+    ];
+    $html = '';
+    foreach ($types as $val => $label) {
+        $sel = $val === $selected ? ' selected' : '';
+        $html .= '<option value="' . $val . '"' . $sel . '>' . $label . '</option>';
+    }
+    return $html;
+}
+
+function getTotalCurriculumCredits($curriculum_id) {
+    $stmt = getDB()->prepare("SELECT total_credits FROM curricula WHERE id = ?");
+    $stmt->execute([$curriculum_id]);
+    $r = $stmt->fetch();
+    return $r ? $r['total_credits'] : 0;
+}
+
+// ============================================================
+// Access Control Helpers
+// ============================================================
+
+function requireStudentAccess($student_id) {
+    if (isAdmin()) return;
+    if (isStudent() && getCurrentUserId() == $student_id) return;
+    $db = getDB();
+    $stmt = $db->prepare("SELECT advisor_id, curriculum_id FROM students WHERE id = ?");
+    $stmt->execute([$student_id]);
+    $student = $stmt->fetch();
+    if (!$student || $student['advisor_id'] != getCurrentUserId()) {
+        header('Location: ' . BASE_URL . '/index.php');
+        exit;
+    }
+}
+
+// ============================================================
+// User Management Functions
+// ============================================================
+
+function getUsers() {
+    return getDB()->query("SELECT u.*, c.code AS curriculum_code, c.name_th AS curriculum_name FROM users u LEFT JOIN curricula c ON u.curriculum_id = c.id ORDER BY u.staff_code")->fetchAll();
+}
+
+function getAdvisors() {
+    return getDB()->query("SELECT u.id, u.name, u.staff_code, c.code AS curriculum_code FROM users u LEFT JOIN curricula c ON u.curriculum_id = c.id WHERE u.role = 'advisor' ORDER BY u.name")->fetchAll();
+}
+
+function getUser($id) {
+    $stmt = getDB()->prepare("SELECT u.*, c.code AS curriculum_code, c.name_th AS curriculum_name FROM users u LEFT JOIN curricula c ON u.curriculum_id = c.id WHERE u.id = ?");
+    $stmt->execute([$id]);
+    return $stmt->fetch();
+}
+
+function authenticateUser($staff_code, $password) {
+    $stmt = getDB()->prepare("SELECT * FROM users WHERE staff_code = ?");
+    $stmt->execute([$staff_code]);
+    $user = $stmt->fetch();
+    if ($user && password_verify($password, $user['password'])) {
+        return $user;
+    }
+    return false;
+}
+
+// ============================================================
+// PDF Parsing Functions
+// ============================================================
+
+function extractTextFromPDF($filepath) {
+    $text = trySmalotParser($filepath);
+    if (!empty(trim($text))) return $text;
+
+    $text = tryPdftotext($filepath);
+    if (!empty(trim($text))) return $text;
+
+    $text = tryBasicPdfParse($filepath);
+    if (!empty(trim($text))) return $text;
+
+    return tryRawPdfRead($filepath);
+}
+
+function trySmalotParser($filepath) {
+    if (!class_exists('Smalot\\PdfParser\\Parser')) {
+        spl_autoload_register(function ($class) {
+            $prefix = 'Smalot\\PdfParser\\';
+            $base_dir = __DIR__ . '/../vendor/smalot/pdfparser/src/';
+            if (strncmp($prefix, $class, strlen($prefix)) === 0) {
+                $file = $base_dir . str_replace('\\', '/', $class) . '.php';
+                if (file_exists($file)) { require $file; }
+            }
+        });
+    }
+    try {
+        $parser = new Smalot\PdfParser\Parser();
+        $pdf = $parser->parseFile($filepath);
+        return $pdf->getText();
+    } catch (Throwable $e) {
+        return '';
+    }
+}
+
+function tryPdftotext($filepath) {
+    if (strtoupper(substr(PHP_OS, 0, 3)) === 'WIN') {
+        $exe_paths = [
+            'C:\xampp\htdocs\Transfer\vendor\pdftotext.exe',
+            'pdftotext',
+            'C:\Program Files\pdftotext\pdftotext.exe',
+        ];
+    } else {
+        $exe_paths = [
+            'pdftotext',
+            '/usr/bin/pdftotext'
+        ];
+    }
+
+    foreach ($exe_paths as $exe) {
+        $output = [];
+        $cmd = escapeshellcmd($exe) . ' ' . escapeshellarg($filepath) . ' -';
+        @exec($cmd, $output, $return_var);
+        if ($return_var === 0 && !empty(implode('', $output))) {
+            return implode("\n", $output);
+        }
+    }
+    return '';
+}
+
+function tryBasicPdfParse($filepath) {
+    $content = file_get_contents($filepath);
+    if ($content === false) return '';
+
+    $text = '';
+    $offset = 0;
+    
+    while (($start = strpos($content, 'stream', $offset)) !== false) {
+        $stream_start = $start + 6;
+        // Skip leading whitespace (usually CR/LF or LF) after 'stream'
+        while ($stream_start < strlen($content) && ctype_space($content[$stream_start])) {
+            $stream_start++;
+        }
+        
+        $end = strpos($content, 'endstream', $stream_start);
+        if ($end === false) {
+            break;
+        }
+        
+        $stream = substr($content, $stream_start, $end - $stream_start);
+        $stream = rtrim($stream);
+        
+        $decoded = @gzuncompress($stream);
+        if ($decoded === false) {
+            $decoded = @gzuncompress(trim($stream));
+        }
+        
+        if ($decoded !== false) {
+            if (strlen($decoded) > 100000) continue;
+            preg_match_all('/\((.*?)\)\s*Tj/s', $decoded, $text_matches);
+            $text .= implode(' ', $text_matches[1]) . "\n";
+
+            preg_match_all('/\[(.*?)\]\s*TJ/s', $decoded, $tj_matches);
+            foreach ($tj_matches[1] as $tj) {
+                preg_match_all('/\((.*?)\)/', $tj, $tj_text);
+                $text .= implode('', $tj_text[1]) . ' ';
+            }
+        }
+        
+        $offset = $end + 9;
+    }
+
+    return $text;
+}
+
+function tryRawPdfRead($filepath) {
+    $content = file_get_contents($filepath);
+    if ($content === false) return '';
+    
+    // Cap binary parsing to prevent CPU exhaustion on very large or corrupt files
+    if (strlen($content) > 500000) {
+        $content = substr($content, 0, 500000);
+    }
+
+    $text = '';
+    $len = strlen($content);
+    $in_paren = false;
+    $buffer = '';
+    
+    for ($i = 0; $i < $len; $i++) {
+        $char = $content[$i];
+        if ($char === '(') {
+            $in_paren = true;
+            $buffer = '';
+        } else if ($char === ')') {
+            if ($in_paren) {
+                if (strlen($buffer) > 0 && strlen($buffer) <= 200) {
+                    $text .= $buffer . "\n";
+                }
+                $in_paren = false;
+            }
+        } else if ($in_paren) {
+            $buffer .= $char;
+            if (strlen($buffer) > 200) {
+                $in_paren = false;
+            }
+        }
+    }
+    return $text;
+}
+
+function parseCoursesFromText($text) {
+    $courses = [];
+
+    // Try Pattern A: 9-digit code (transfer PDF format with multi-line text)
+    // Strip first 2 digits for 7-digit curriculum code
+    $courses = parseTransferPdfCourses($text);
+
+    // Fallback: Standard 7-digit code format
+    if (empty($courses)) {
+        $courses = parseStandardCourses($text);
+    }
+
+    return $courses;
+}
+
+function parseTransferPdfCourses($text) {
+    $courses = [];
+    $lines = explode("\n", $text);
+
+    $lines = array_map(function($l) {
+        return str_replace("\t", " ", trim($l));
+    }, $lines);
+    $lines = array_values(array_filter($lines, function($l) {
+        return $l !== '';
+    }));
+
+    $current_code = '';
+    $current_name_parts = [];
+
+    $flushCourse = function() use (&$current_code, &$current_name_parts, &$courses) {
+        if ($current_code && !empty($current_name_parts)) {
+            $courses[] = finalizeTransferCourse($current_code, $current_name_parts);
+            $current_code = '';
+            $current_name_parts = [];
+        }
+    };
+
+    for ($i = 0; $i < count($lines); $i++) {
+        $line = $lines[$i];
+
+        // Single regex: optional seq# (1-2 digits with optional trailing space) + 9-digit code + rest
+        $m = [];
+        if (preg_match('/^(\d{1,2})?\s*(\d{9})(.*)$/', $line, $m)) {
+            $pdf_code = $m[2];
+            $after_code = trim($m[3]);
+
+            if ($current_code) {
+                $courses[] = finalizeTransferCourse($current_code, $current_name_parts);
+                $current_code = '';
+                $current_name_parts = [];
+            }
+
+            $current_code = $pdf_code;
+            $current_name_parts = [];
+
+            if ($after_code !== '') {
+                if (preg_match('/^(.+?)\s+(\d+\.\d)\s*$/', $after_code, $nm)) {
+                    $current_name_parts[] = trim($nm[1]);
+                    $courses[] = finalizeTransferCourse($current_code, $current_name_parts, floatval($nm[2]));
+                    $current_code = '';
+                    $current_name_parts = [];
+                } else {
+                    $current_name_parts[] = $after_code;
+                }
+            }
+            continue;
+        }
+
+        if ($current_code) {
+            if (preg_match('/^(\d+\.\d)\s*$/', $line, $cm)) {
+                $courses[] = finalizeTransferCourse($current_code, $current_name_parts, floatval($cm[1]));
+                $current_code = '';
+                $current_name_parts = [];
+                continue;
+            }
+
+            if (preg_match('/^(.+?)\s+(\d+\.\d)\s*$/', $line, $nm)) {
+                $current_name_parts[] = trim($nm[1]);
+                $courses[] = finalizeTransferCourse($current_code, $current_name_parts, floatval($nm[2]));
+                $current_code = '';
+                $current_name_parts = [];
+                continue;
+            }
+
+            $current_name_parts[] = $line;
+        }
+    }
+
+    if ($current_code && !empty($current_name_parts)) {
+        $courses[] = finalizeTransferCourse($current_code, $current_name_parts);
+    }
+
+    return $courses;
+}
+
+function finalizeTransferCourse($pdf_code, $name_parts, $credits = null) {
+    // Clean the name: remove extra whitespace, collapsed newlines
+    $name = preg_replace('/\s+/', ' ', implode(' ', $name_parts));
+    $name = trim($name);
+    // Remove trailing orphan characters like "-"
+    $name = rtrim($name, ' -');
+
+    // Strip first 2 digits from 9-digit code to get 7-digit curriculum code
+    $curriculum_code = substr($pdf_code, 2);
+
+    // If credits not specified, try to find a number in the name
+    if ($credits === null) {
+        if (preg_match('/\b(\d+\.\d)\b/', $name, $cm)) {
+            $credits = floatval($cm[1]);
+            $name = trim(str_replace($cm[0], '', $name));
+        } else {
+            $credits = 3.0; // default
+        }
+    }
+
+    return [
+        'code' => $curriculum_code,
+        'name_th' => $name,
+        'credits' => $credits,
+        'lecture' => 0,
+        'practice' => 0,
+        'self_study' => 0,
+    ];
+}
+
+function parseStandardCourses($text) {
+    $courses = [];
+
+    // Pattern: Standard format "0001101 จิตวิทยาทั่วไป 3(3-0-6)"
+    preg_match_all('/(\d{7})\s+([^\d]+?)\s+(\d+(?:\.\d)?)\s*\(\s*(\d+)\s*[-–]\s*(\d+)\s*[-–]\s*(\d+)\s*\)/', $text, $matches, PREG_SET_ORDER);
+    foreach ($matches as $m) {
+        $courses[] = [
+            'code' => trim($m[1]),
+            'name_th' => trim($m[2]),
+            'credits' => floatval($m[3]),
+            'lecture' => intval($m[4]),
+            'practice' => intval($m[5]),
+            'self_study' => intval($m[6]),
+        ];
+    }
+
+    // Pattern: Simple format "0001101 จิตวิทยาทั่วไป 3"
+    if (empty($courses)) {
+        preg_match_all('/(\d{7})\s+([^\d]{2,80}?)\s+(\d+(?:\.\d)?)(?:\s|$)/', $text, $matches, PREG_SET_ORDER);
+        foreach ($matches as $m) {
+            $courses[] = [
+                'code' => trim($m[1]),
+                'name_th' => trim($m[2]),
+                'credits' => floatval($m[3]),
+                'lecture' => 0, 'practice' => 0, 'self_study' => 0,
+            ];
+        }
+    }
+
+    return $courses;
+}
+
+function getStudentTransferPdfPath($student_id) {
+    $stmt = getDB()->prepare("SELECT DISTINCT source_file FROM student_courses WHERE student_id = ? AND source_type = 'transfer' AND source_file IS NOT NULL LIMIT 1");
+    $stmt->execute([$student_id]);
+    $filename = $stmt->fetchColumn();
+    if ($filename) {
+        return __DIR__ . '/../uploads/' . $filename;
+    }
+    return null;
+}
+
+function parseTransferReportFromPdf($filepath) {
+    if (!$filepath || !file_exists($filepath)) return null;
+    
+    // Register autoloader for Smalot Parser just in case it is not registered yet
+    spl_autoload_register(function ($class) {
+        $prefix = 'Smalot\\PdfParser\\';
+        $base_dir = __DIR__ . '/../vendor/smalot/pdfparser/src/';
+        if (strncmp($prefix, $class, strlen($prefix)) === 0) {
+            $file = $base_dir . str_replace('\\', '/', $class) . '.php';
+            if (file_exists($file)) { require $file; }
+        }
+    });
+    
+    $text = extractTextFromPDF($filepath);
+    $lines = explode("\n", $text);
+    
+    $pattern = '/^(?:(\d+)\s+)?(\d*)(\d{9})\s*(.+?)\s+(\d+\.\d)\s+(\d{5}-\d{4})\s*(.+?)\s+(\d+(?:\.\d)?)\s+([A-F][+-]?|[0-4](?:\.[0-9])?|S|U)\s*(\d+(?:\.\d+)?%)/u';
+    $source_pattern = '/^(\d{5}-\d{4})\s*(.+?)\s+(\d+(?:\.\d)?)\s+([A-F][+-]?|[0-4](?:\.[0-9])?|S|U)\s*(\d+(?:\.\d+)?%)/u';
+    $target_only_pattern = '/^(?:(\d+)\s+)?(\d*)(\d{9})\s*(.+?)\s+(\d+\.\d)\s*$/u';
+    $untransferable_pattern = '/^(?:(\d+)\s+)?(\d*)(\d{5}-\d{4})\s*(.+?)\s+(\d+(?:\.\d)?)\s+([A-F][+-]?|[0-4](?:\.[0-9])?|[ก-๙]\.?|S|U|W|I)\s*(.+)$/u';
+    
+    $results = [];
+    $untransferable = [];
+    
+    $start_transfer = false;
+    $start_untransfer = false;
+    
+    foreach ($lines as $line) {
+        $line = trim($line);
+        if ($line === '') continue;
+        
+        if (mb_strpos($line, 'รายละเอียดวิชาที่เทียบโอนได้') !== false) {
+            $start_transfer = true;
+            $start_untransfer = false;
+            continue;
+        }
+        if (mb_strpos($line, 'วิชาต้นทางที่ไม่สามารถเทียบโอนได้') !== false) {
+            $start_transfer = false;
+            $start_untransfer = true;
+            continue;
+        }
+        if (mb_strpos($line, 'ผู้ประเมิน') !== false || mb_strpos($line, '(............................................)') !== false) {
+            $start_transfer = false;
+            $start_untransfer = false;
+            break;
+        }
+        
+        if ($start_transfer) {
+            if (preg_match($pattern, $line, $m)) {
+                $seq = !empty($m[1]) ? $m[1] : (!empty($m[2]) ? $m[2] : (count($results) + 1));
+                $target_code = $m[3];
+                $target_name = trim($m[4]);
+                $target_credits = floatval($m[5]);
+                
+                $source_code = $m[6];
+                $source_name = trim($m[7]);
+                $source_credits = floatval($m[8]);
+                $source_grade = $m[9];
+                $similarity = $m[10];
+                
+                $results[] = [
+                    'seq' => $seq,
+                    'target_code' => $target_code,
+                    'target_name' => $target_name,
+                    'target_credits' => $target_credits,
+                    'sources' => [
+                        [
+                            'code' => $source_code,
+                            'name' => $source_name,
+                            'credits' => $source_credits,
+                            'grade' => $source_grade,
+                            'similarity' => $similarity
+                        ]
+                    ]
+                ];
+            } else if (preg_match($target_only_pattern, $line, $m)) {
+                $seq = !empty($m[1]) ? $m[1] : (!empty($m[2]) ? $m[2] : (count($results) + 1));
+                $target_code = $m[3];
+                $target_name = trim($m[4]);
+                $target_credits = floatval($m[5]);
+                
+                $results[] = [
+                    'seq' => $seq,
+                    'target_code' => $target_code,
+                    'target_name' => $target_name,
+                    'target_credits' => $target_credits,
+                    'sources' => []
+                ];
+            } else if (preg_match($source_pattern, $line, $m) && !empty($results)) {
+                $source_code = $m[1];
+                $source_name = trim($m[2]);
+                $source_credits = floatval($m[3]);
+                $source_grade = $m[4];
+                $similarity = $m[5];
+                
+                $results[count($results) - 1]['sources'][] = [
+                    'code' => $source_code,
+                    'name' => $source_name,
+                    'credits' => $source_credits,
+                    'grade' => $source_grade,
+                    'similarity' => $similarity
+                ];
+            }
+        } else if ($start_untransfer) {
+            if (preg_match($untransferable_pattern, $line, $m)) {
+                $seq = !empty($m[1]) ? $m[1] : (!empty($m[2]) ? $m[2] : (count($untransferable) + 1));
+                $source_code = $m[3];
+                $source_name = trim($m[4]);
+                $source_credits = floatval($m[5]);
+                $source_grade = $m[6];
+                $reason = trim($m[7]);
+                
+                $untransferable[] = [
+                    'seq' => $seq,
+                    'code' => $source_code,
+                    'name' => $source_name,
+                    'credits' => $source_credits,
+                    'grade' => $source_grade,
+                    'reason' => $reason
+                ];
+            }
+        }
+    }
+    
+    return [
+        'transfers' => $results,
+        'untransferable' => $untransferable
+    ];
+}
+