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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>PMC Tech - Complete AI Attendance</title>
<script src="https://cdn.tailwindcss.com"></script>
<link href="https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&display=swap" rel="stylesheet">
<style>
body { font-family: 'Inter', sans-serif; background-color: #F3F4F6; }
.view { display: none; }
.view.active { display: block; }
.header-wave {
background: linear-gradient(to right, #8A2BE2, #6A0DAD);
border-bottom-left-radius: 50% 20%;
border-bottom-right-radius: 50% 20%;
}
.nav-btn.active { color: #8A2BE2; background-color: #f3e8ff; }
.timetable-select {
-webkit-appearance: none; -moz-appearance: none; appearance: none;
background-image: none; border: 1px solid #e5e7eb;
}
.loader {
border: 4px solid #f3f3f3; border-top: 4px solid #8A2BE2;
border-radius: 50%; width: 24px; height: 24px;
animation: spin 1s linear infinite;
}
@keyframes spin { 0% { transform: rotate(0deg); } 100% { transform: rotate(360deg); } }
</style>
</head>
<body class="antialiased">
<div id="app-container" class="container mx-auto max-w-md min-h-screen bg-white flex flex-col shadow-2xl">
<header id="app-header" class="header-wave text-white p-6 pt-10 h-40 hidden">
<h1 id="header-title" class="text-2xl font-bold text-center"></h1>
<p id="header-subtitle" class="text-center text-sm opacity-90"></p>
</header>
<div id="message-box" class="hidden fixed top-5 left-1/2 -translate-x-1/2 z-50 p-4 text-white rounded-lg shadow-lg"></div>
<main id="main-content" class="flex-grow p-4 overflow-y-auto"></main>
<nav id="bottom-nav" class="bg-white shadow-[0_-2px_10px_rgba(0,0,0,0.1)] p-2 hidden">
<div class="flex justify-around">
<button data-view="department" class="nav-btn flex flex-col items-center text-gray-500 p-2 rounded-lg w-20">
<svg class="h-6 w-6" fill="none" viewBox="0 0 24 24" stroke="currentColor"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M3 12l2-2m0 0l7-7 7 7M5 10v10a1 1 0 001 1h3m10-11l2 2m-2-2v10a1 1 0 01-1 1h-3m-6 0a1 1 0 001-1v-4a1 1 0 011-1h2a1 1 0 011 1v4a1 1 0 001 1m-6 0h6"/></svg>
<span class="text-xs">Home</span>
</button>
<button data-view="studentManagement" class="nav-btn flex flex-col items-center text-gray-500 p-2 rounded-lg w-20">
<svg class="h-6 w-6" viewBox="0 0 20 20" fill="currentColor"><path d="M13 6a3 3 0 11-6 0 3 3 0 016 0zM18 8a2 2 0 11-4 0 2 2 0 014 0zM14 15a4 4 0 00-8 0v3h8v-3zM6 8a2 2 0 11-4 0 2 2 0 014 0zM16 18v-3a5.972 5.972 0 00-.75-2.906A3.005 3.005 0 0119 15v3h-3zM4.75 12.094A5.973 5.973 0 004 15v3H1v-3a3 3 0 013.75-2.906z" /></svg>
<span class="text-xs">Students</span>
</button>
<button data-view="reports" class="nav-btn flex flex-col items-center text-gray-500 p-2 rounded-lg w-20">
<svg class="h-6 w-6" viewBox="0 0 20 20" fill="currentColor"><path d="M2 11a1 1 0 011-1h2a1 1 0 011 1v5a1 1 0 01-1 1H3a1 1 0 01-1-1v-5zM8 7a1 1 0 011-1h2a1 1 0 011 1v9a1 1 0 01-1 1H9a1 1 0 01-1-1V7zM14 4a1 1 0 011-1h2a1 1 0 011 1v12a1 1 0 01-1 1h-2a1 1 0 01-1-1V4z" /></svg>
<span class="text-xs">Reports</span>
</button>
<button data-view="manage" class="nav-btn flex flex-col items-center text-gray-500 p-2 rounded-lg w-20">
<svg xmlns="http://www.w3.org/2000/svg" class="h-6 w-6" fill="none" viewBox="0 0 24 24" stroke="currentColor"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M10.325 4.317c.426-1.756 2.924-1.756 3.35 0a1.724 1.724 0 002.573 1.066c1.543-.94 3.31.826 2.37 2.37a1.724 1.724 0 001.065 2.572c1.756.426 1.756 2.924 0 3.35a1.724 1.724 0 00-1.066 2.573c.94 1.543-.826 3.31-2.37 2.37a1.724 1.724 0 00-2.572 1.065c-.426 1.756-2.924 1.756-3.35 0a1.724 1.724 0 00-2.573-1.066c-1.543.94-3.31-.826-2.37-2.37a1.724 1.724 0 00-1.065-2.572c-1.756-.426-1.756-2.924 0-3.35a1.724 1.724 0 001.066-2.573c-.94-1.543.826-3.31 2.37-2.37.996.608 2.296.096 2.572-1.065z" /><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M15 12a3 3 0 11-6 0 3 3 0 016 0z" /></svg>
<span class="text-xs">Manage</span>
</button>
</div>
</nav>
<div id="gemini-modal" class="fixed inset-0 bg-black bg-opacity-50 hidden items-center justify-center p-4 z-50">
<div class="bg-white rounded-lg shadow-xl p-6 w-full max-w-md">
<h3 class="text-lg font-bold mb-2">✨ AI Attendance Analysis</h3>
<div id="gemini-modal-content" class="text-gray-700 max-h-64 overflow-y-auto"></div>
<button data-action="closeModal" class="mt-4 w-full bg-gray-200 py-2 rounded-lg">Close</button>
</div>
</div>
</div>
<script>
document.addEventListener('DOMContentLoaded', () => {
// --- Application State ---
const state = {
db: null,
currentStaff: null,
selectedDept: null,
selectedYear: null,
currentView: 'login',
};
const DEPARTMENTS = ["Aeronautical", "AI & Data Science", "Biomedical", "Biotechnology", "Civil", "Computer Science", "Electrical", "Electronics & Comm.", "Information Technology", "Mechanical", "Mechatronics"];
// --- UI Rendering Engine ---
const ui = {
mainContent: document.getElementById('main-content'),
header: document.getElementById('app-header'),
headerTitle: document.getElementById('header-title'),
headerSubtitle: document.getElementById('header-subtitle'),
bottomNav: document.getElementById('bottom-nav'),
messageBox: document.getElementById('message-box'),
geminiModal: document.getElementById('gemini-modal'),
geminiModalContent: document.getElementById('gemini-modal-content'),
templates: {
login: () => `
<div class="view active flex flex-col h-full justify-center bg-gradient-to-b from-[#6A0DAD] to-[#8A2BE2] p-6 -m-4">
<div class="bg-white/30 backdrop-blur-sm p-8 rounded-2xl shadow-lg text-center">
<input id="login-username" type="text" placeholder="Staff Username" class="w-full p-3 mb-4 bg-white/50 rounded-lg placeholder-gray-600">
<input id="login-password" type="password" placeholder="Password" class="w-full p-3 mb-6 bg-white/50 rounded-lg placeholder-gray-600">
<button data-action="login" class="w-full bg-white text-[#6A0DAD] font-bold py-3 rounded-lg shadow-md mb-4">Login</button>
<button data-view="register" class="w-full bg-[#8A2BE2] text-white font-bold py-3 rounded-lg shadow-md">Register New Staff</button>
</div>
<div class="text-center mt-10">
<img src="/home/tharun/projects/present/images.png" alt="" class="w-32 mx-auto">
<p class="text-center text-white text-sm mt-6">First time? <a href="#" data-view="dbManager" class="font-bold hover:underline">Setup/Load Database</a></p>
</div>
</div>`,
register: () => `
<div class="view active flex flex-col h-full justify-center bg-gradient-to-b from-[#6A0DAD] to-[#8A2BE2] p-6 -m-4">
<div class="bg-white/30 backdrop-blur-sm p-8 rounded-2xl shadow-lg text-center">
<h2 class="text-white text-2xl font-bold mb-6">Staff Registration</h2>
<input id="register-username" type="text" placeholder="Username" class="w-full p-3 mb-4 bg-white/50 rounded-lg placeholder-gray-600">
<input id="register-email" type="email" placeholder="Email Address" class="w-full p-3 mb-4 bg-white/50 rounded-lg placeholder-gray-600">
<select id="register-department" class="w-full p-3 mb-4 bg-white/50 rounded-lg text-gray-700"></select>
<select id="register-position" class="w-full p-3 mb-4 bg-white/50 rounded-lg text-gray-700">
<option value="">Select Position</option><option value="HOD">HOD</option><option value="Class Advisor">Class Advisor</option><option value="Professor">Professor</option>
</select>
<input id="register-password" type="password" placeholder="Password" class="w-full p-3 mb-4 bg-white/50 rounded-lg placeholder-gray-600">
<button data-action="register" class="w-full bg-white text-[#6A0DAD] font-bold py-3 rounded-lg shadow-md mb-4">Register</button>
<a href="#" data-view="login" class="text-white hover:underline">Back to Login</a>
</div>
</div>`,
department: () => {
const deptsToShow = state.currentStaff.position === 'HOD' ? [state.currentStaff.department] : DEPARTMENTS;
return `
<div class="view active">
<h2 class="text-xl font-bold text-gray-800 mb-4">Select Department</h2>
<div class="space-y-3">
${deptsToShow.map(dept => `<button data-action="selectDept" data-dept="${dept}" class="w-full flex items-center p-4 bg-white rounded-lg shadow-md hover:bg-gray-50"><span class="font-semibold text-gray-700">${dept}</span></button>`).join('')}
</div>
</div>`;
},
year: () => `
<div class="view active">
<h2 class="text-xl font-bold text-gray-800 mb-4">Select Year</h2>
<div class="grid grid-cols-2 gap-4">
${[1, 2, 3, 4].map(year => `<button data-action="selectYear" data-year="${year}" class="flex flex-col items-center justify-center p-6 bg-purple-600 text-white rounded-2xl shadow-lg h-32 hover:bg-purple-700"><span class="text-4xl font-extrabold">${year}</span><span class="font-semibold">${year}${util.getYearSuffix(year)} Year</span></button>`).join('')}
</div>
</div>`,
studentManagement: () => `
<div class="view active">
<div class="bg-gray-100 p-4 rounded-lg mb-6">
<h3 class="font-bold text-lg mb-2">Add New Student</h3>
<input type="text" id="student-name-input" placeholder="Student Full Name" class="w-full p-2 mb-2 border rounded">
<input type="text" id="student-regno-input" placeholder="Register Number" class="w-full p-2 mb-2 border rounded">
<button data-action="addStudent" class="w-full bg-purple-600 text-white font-bold py-2 rounded-lg">Add Student</button>
</div>
<div>
<h3 class="font-bold text-lg mb-2">Student List</h3>
<div id="student-list-container" class="space-y-2">${logic.getStudentListHTML()}</div>
</div>
</div>`,
attendanceEntry: () => {
const { subjectName } = logic.getScheduledSubject();
const subjectDisplay = subjectName !== 'General'
? `<div class="bg-purple-100 text-purple-800 p-3 rounded-lg text-center mb-4"><p class="font-bold">${subjectName}</p><p class="text-sm">Scheduled for this hour</p></div>`
: `<div class="bg-yellow-100 text-yellow-800 p-3 rounded-lg text-center mb-4"><p class="font-bold">No Subject Scheduled</p><p class="text-sm">Attendance will be marked as 'General'</p></div>`;
return `
<div class="view active">
${subjectDisplay}
<div class="bg-gray-100 p-4 rounded-lg mb-4">
<div class="grid grid-cols-2 gap-4">
<div><label for="attendance-date" class="text-sm font-medium">Date</label><input type="date" id="attendance-date" class="w-full p-2 border rounded mt-1" value="${new Date().toISOString().split('T')[0]}"></div>
<div><label for="attendance-hour" class="text-sm font-medium">Hour (1-8)</label><select id="attendance-hour" class="w-full p-2 border rounded mt-1">${[...Array(8).keys()].map(i => `<option value="${i+1}">Hour ${i+1}</option>`).join('')}</select></div>
</div>
</div>
<h3 class="font-bold text-lg mb-2">Mark Absentees</h3>
<div id="attendance-student-list" class="space-y-2">${logic.getStudentCheckboxListHTML()}</div>
<button data-action="submitAttendance" class="w-full mt-4 bg-[#8A2BE2] text-white font-bold py-3 rounded-lg shadow-md">Submit Attendance</button>
</div>`;
},
reports: () => `
<div class="view active">
<div class="bg-gray-100 p-4 rounded-lg mb-4">
<h3 class="font-bold mb-2">Generate Student-wise Report</h3>
<div class="flex space-x-2" id="period-selector">
<button data-period="week" class="period-btn flex-1 bg-purple-800 text-white py-2 rounded-lg">This Week</button>
<button data-period="month" class="period-btn flex-1 bg-gray-200 text-gray-800 py-2 rounded-lg">This Month</button>
</div>
</div>
<div id="reports-placeholder" class="text-center text-gray-500 p-8">Select a class from Home to see reports.</div>
<div id="student-wise-report" class="hidden"></div>
<div class="bg-gray-100 p-4 rounded-lg mt-6">
<h3 class="font-bold mb-2">Download Detailed Log (CSV)</h3>
<p class="text-xs text-gray-600 mb-2">Generates a full attendance log for the selected class, including subjects.</p>
<button data-action="downloadReport" class="w-full bg-blue-600 text-white font-bold py-2 rounded-lg">Download Full Report</button>
</div>
</div>`,
manage: () => `
<div class="view active space-y-4">
<h2 class="text-xl font-bold text-gray-800">Management</h2>
<button data-view="subjects" class="w-full text-left p-4 bg-white rounded-lg shadow-md hover:bg-gray-50 font-semibold">Manage My Subjects</button>
<button data-view="timetable" class="w-full text-left p-4 bg-white rounded-lg shadow-md hover:bg-gray-50 font-semibold">Set Class Timetable</button>
<button data-view="profile" class="w-full text-left p-4 bg-white rounded-lg shadow-md hover:bg-gray-50 font-semibold">My Profile</button>
<button data-view="dbManager" class="w-full text-left p-4 bg-white rounded-lg shadow-md hover:bg-gray-50 font-semibold">Database Settings</button>
</div>`,
subjects: () => `
<div class="view active">
<div class="bg-gray-100 p-4 rounded-lg mb-6">
<h3 class="font-bold text-lg mb-2">Add New Subject</h3>
<input type="text" id="subject-name-input" placeholder="e.g., Data Structures" class="w-full p-2 mb-2 border rounded">
<button data-action="addSubject" class="w-full bg-purple-600 text-white font-bold py-2 rounded-lg">Add Subject</button>
</div>
<div>
<h3 class="font-bold text-lg mb-2">My Subjects</h3>
<div id="subject-list-container" class="space-y-2">${logic.getSubjectListHTML()}</div>
</div>
</div>`,
timetable: () => {
if (!state.selectedDept || !state.selectedYear) return `<div class="view active text-center p-8 text-gray-600">Please select a Department and Year from the Home screen first to set the timetable.</div>`;
return `
<div class="view active">
<h2 class="text-xl font-bold text-gray-800 mb-4">Set Timetable</h2>
<div class="overflow-x-auto">
<table class="min-w-full border-collapse">
<thead><tr class="bg-gray-100"><th class="p-2 border">Day/Hour</th>${[...Array(8).keys()].map(h => `<th class="p-2 border">${h+1}</th>`).join('')}</tr></thead>
<tbody>${logic.getTimetableHTML()}</tbody>
</table>
</div>
<button data-action="saveTimetable" class="w-full mt-4 bg-green-500 text-white font-bold py-3 rounded-lg shadow-md">Save Timetable</button>
</div>`;
},
profile: () => `
<div class="view active">
<div class="bg-gray-100 p-6 rounded-2xl shadow-md flex items-center space-x-4 mb-6">
<div class="w-16 h-16 bg-purple-500 rounded-full flex items-center justify-center text-white text-2xl font-bold">${state.currentStaff.username.charAt(0).toUpperCase()}</div>
<div>
<h3 class="text-xl font-bold text-gray-800">${state.currentStaff.username}</h3>
<p class="text-gray-600">${state.currentStaff.position}</p>
<p class="text-gray-600">${state.currentStaff.department}</p>
</div>
</div>
<button data-action="logout" class="w-full bg-red-500 text-white font-bold py-3 rounded-lg shadow-md">Logout</button>
</div>`,
dbManager: () => `
<div class="view active bg-white p-8 rounded-xl shadow-lg text-center">
<h2 class="text-2xl font-bold mb-6 text-gray-700">Database Management</h2>
<div class="space-y-4">
<button data-action="createDb" class="w-full bg-blue-600 text-white font-bold py-3 px-4 rounded-lg">Create & Save New</button>
<label for="load-db-input" class="w-full bg-green-600 text-white font-bold py-3 px-4 rounded-lg cursor-pointer block">Load from File</label>
<input type="file" id="load-db-input" class="hidden" accept=".json">
<button data-action="saveDb" id="save-db-btn" class="w-full bg-purple-600 text-white font-bold py-3 px-4 rounded-lg hidden">Save Current Changes</button>
</div>
<p class="text-center text-gray-600 text-sm mt-8">Finished? <a href="#" data-view="login" class="text-blue-600 hover:underline">Go to Login</a></p>
</div>`,
},
render() {
const view = state.currentView;
const template = this.templates[view] || (() => `<div>View not found: ${view}</div>`);
this.mainContent.innerHTML = template();
const isAuthView = ['login', 'register', 'dbManager'].includes(view);
this.header.classList.toggle('hidden', isAuthView);
this.bottomNav.classList.toggle('hidden', isAuthView);
this.mainContent.classList.toggle('pb-20', !isAuthView);
if (!isAuthView) {
this.headerTitle.textContent = util.getViewTitle(view);
this.headerSubtitle.textContent = (state.selectedDept && state.selectedYear) ? `${state.selectedDept} - ${state.selectedYear}${util.getYearSuffix(state.selectedYear)} Year` : '';
document.querySelectorAll('.nav-btn').forEach(btn => {
btn.classList.toggle('active', btn.dataset.view === view);
});
}
if (view === 'register') {
const deptDropdown = document.getElementById('register-department');
deptDropdown.innerHTML = '<option value="">Select Department</option>';
DEPARTMENTS.forEach(d => deptDropdown.add(new Option(d, d)));
}
if (view === 'reports' && state.selectedDept && state.selectedYear) {
logic.generateReport('week');
}
if (view === 'timetable') {
logic.populateTimetable();
}
if (state.db) document.getElementById('save-db-btn')?.classList.remove('hidden');
},
showMessage(msg, isError = false) {
this.messageBox.textContent = msg;
this.messageBox.className = `fixed top-5 left-1/2 -translate-x-1/2 z-50 p-4 text-white rounded-lg shadow-lg ${isError ? 'bg-red-500' : 'bg-green-500'}`;
setTimeout(() => this.messageBox.classList.add('hidden'), 3000);
},
showModal(content) {
this.geminiModalContent.innerHTML = content;
this.geminiModal.classList.add('flex');
this.geminiModal.classList.remove('hidden');
},
hideModal() {
this.geminiModal.classList.add('hidden');
this.geminiModal.classList.remove('flex');
}
};
// --- Core Logic ---
const logic = {
switchView(view) {
state.currentView = view;
ui.render();
},
getStudentListHTML() {
if (!state.selectedDept || !state.selectedYear) return '<p class="text-center text-gray-500">Please select a department and year from the Home tab first.</p>';
const studentsInClass = state.db.students.filter(s => s.department === state.selectedDept && s.year == state.selectedYear);
if (studentsInClass.length === 0) return '<p class="text-gray-500">No students added for this class.</p>';
return studentsInClass.map(s => `<div class="p-2 bg-white rounded shadow-sm flex justify-between items-center"><span>${s.name} (${s.regNo})</span></div>`).join('');
},
getStudentCheckboxListHTML() {
if (!state.selectedDept || !state.selectedYear) return '<p class="text-center text-gray-500">Please select a class from Home first.</p>';
const studentsInClass = state.db.students.filter(s => s.department === state.selectedDept && s.year == state.selectedYear);
if (studentsInClass.length === 0) return '<p class="text-center text-gray-500">No students in this class. Please add them via the "Students" tab.</p>';
return studentsInClass.map(s => `
<label class="flex items-center p-3 bg-white rounded-lg shadow-sm">
<input type="checkbox" data-regno="${s.regNo}" class="h-5 w-5 rounded text-purple-600 focus:ring-purple-500 border-gray-300">
<span class="ml-3 font-medium">${s.name}</span>
<span class="ml-auto text-sm text-gray-500">${s.regNo}</span>
</label>`).join('');
},
getSubjectListHTML: () => {
if (!state.db.subjects) return '<p>No subjects created.</p>';
const mySubjects = state.db.subjects.filter(s => s.staffId === state.currentStaff.id);
if (mySubjects.length === 0) return '<p class="text-gray-500">You have not added any subjects yet.</p>';
return mySubjects.map(s => `<div class="p-2 bg-white rounded shadow-sm">${s.name}</div>`).join('');
},
getTimetableHTML: () => {
const days = ['Monday', 'Tuesday', 'Wednesday', 'Thursday', 'Friday'];
const mySubjects = state.db.subjects.filter(s => s.staffId === state.currentStaff.id);
const subjectOptions = `<option value="">-</option>` + mySubjects.map(s => `<option value="${s.id}">${s.name}</option>`).join('');
return days.map((day, dayIndex) => `
<tr>
<td class="p-2 border font-semibold bg-gray-50">${day}</td>
${[...Array(8).keys()].map(hourIndex => {
const hour = hourIndex + 1;
return `<td class="p-1 border"><select data-day="${dayIndex}" data-hour="${hour}" class="w-full timetable-select p-1 rounded bg-transparent text-xs">${subjectOptions}</select></td>`;
}).join('')}
</tr>`).join('');
},
populateTimetable: () => {
const timetable = state.db.timetable || {};
const classTimetable = timetable[state.selectedDept]?.[state.selectedYear] || {};
document.querySelectorAll('.timetable-select').forEach(select => {
const day = select.dataset.day;
const hour = select.dataset.hour;
select.value = classTimetable[day]?.[hour] || '';
});
},
getScheduledSubject: () => {
const today = new Date();
const dayIndex = today.getDay() - 1; // Monday = 0
const hourSelect = document.getElementById('attendance-hour');
const collegeHour = hourSelect ? hourSelect.value : 0;
if (dayIndex < 0 || dayIndex > 4 || collegeHour === 0) return { subjectName: 'General', subjectId: 'general' };
const timetable = state.db.timetable || {};
const subjectId = timetable[state.selectedDept]?.[state.selectedYear]?.[dayIndex]?.[collegeHour] || 'general';
if (subjectId === 'general' || !state.db.subjects) return { subjectName: 'General', subjectId: 'general' };
const subject = state.db.subjects.find(s => s.id === subjectId);
return { subjectName: subject ? subject.name : 'General', subjectId };
},
generateReport(period) {
const placeholder = document.getElementById('reports-placeholder');
const studentWiseContainer = document.getElementById('student-wise-report');
if (!state.selectedDept || !state.selectedYear) {
placeholder.classList.remove('hidden');
studentWiseContainer.classList.add('hidden');
return;
}
placeholder.classList.add('hidden');
studentWiseContainer.classList.remove('hidden');
const { startDate, endDate } = util.getDateRange(period);
const studentsInClass = state.db.students.filter(s => s.department === state.selectedDept && s.year == state.selectedYear);
let reportHTML = `<h3 class="font-bold text-lg mb-2">Student-wise Report (${util.capitalize(period)})</h3>`;
if (studentsInClass.length === 0) {
reportHTML += '<p class="text-gray-500">No students in this class.</p>';
} else {
reportHTML += '<div class="space-y-2">';
studentsInClass.forEach(student => {
let totalHours = 0, presentHours = 0;
Object.keys(student.attendance).forEach(dateStr => {
const recordDate = new Date(dateStr);
if (recordDate >= startDate && recordDate <= endDate) {
const hours = student.attendance[dateStr];
Object.keys(hours).forEach(hour => {
totalHours++;
if (hours[hour].status === 'P') presentHours++;
});
}
});
const percentage = totalHours > 0 ? Math.round((presentHours / totalHours) * 100) : 0;
const colorClass = percentage < 75 ? 'text-red-500' : 'text-green-500';
reportHTML += `
<div class="flex items-center justify-between p-3 bg-white rounded-lg shadow-sm">
<div>
<p class="font-semibold">${student.name}</p>
<p class="text-sm text-gray-600">Present: ${presentHours}/${totalHours} hours (<span class="font-bold ${colorClass}">${percentage}%</span>)</p>
</div>
<button data-action="analyzeStudent" data-studentid="${student.id}" class="bg-purple-100 text-purple-700 px-3 py-1 rounded-full text-sm font-semibold">✨ Analyze</button>
</div>`;
});
reportHTML += '</div>';
}
studentWiseContainer.innerHTML = reportHTML;
},
async callGeminiAPI(prompt) {
const apiKey = ""; // Canvas will provide this
const apiUrl = `https://generativelanguage.googleapis.com/v1beta/models/gemini-2.0-flash:generateContent?key=${apiKey}`;
const payload = { contents: [{ parts: [{ text: prompt }] }] };
try {
const response = await fetch(apiUrl, {
method: 'POST',
headers: { 'Content-Type': 'application/json' },
body: JSON.stringify(payload)
});
if (!response.ok) throw new Error(`API error: ${response.statusText}`);
const result = await response.json();
return result.candidates?.[0]?.content?.parts?.[0]?.text || "No response from AI.";
} catch (error) {
console.error("Gemini API call failed:", error);
return "Failed to get analysis. Please check console for errors.";
}
}
};
// --- Event Handlers using Delegation ---
const actions = {
switchView: (el) => logic.switchView(el.dataset.view),
createDb: () => {
state.db = { staff: [], students: [], subjects: [], timetable: {} };
ui.showMessage('New database created. Please save it.');
actions.saveDb();
},
saveDb: () => {
if (!state.db) return ui.showMessage('No database to save.', true);
const dataStr = JSON.stringify(state.db, null, 2);
const blob = new Blob([dataStr], {type: 'application/json'});
const url = URL.createObjectURL(blob);
const a = document.createElement('a');
a.href = url;
a.download = `pmc-complete-db-${new Date().toISOString().split('T')[0]}.json`;
a.click();
URL.revokeObjectURL(url);
ui.showMessage('Database saved!');
},
loadDb: (el) => {
const file = el.files[0];
if (!file) return;
const reader = new FileReader();
reader.onload = (e) => {
try {
const loadedDb = JSON.parse(e.target.result);
if (loadedDb.staff && loadedDb.students) {
state.db = loadedDb;
if(!state.db.subjects) state.db.subjects = [];
if(!state.db.timetable) state.db.timetable = {};
ui.showMessage('Database loaded successfully!');
document.getElementById('save-db-btn').classList.remove('hidden');
} else { ui.showMessage('Invalid DB file.', true); }
} catch (err) { ui.showMessage('Error parsing DB file.', true); }
};
reader.readAsText(file);
},
register: () => {
if (!state.db) return ui.showMessage('Load a database first.', true);
const username = document.getElementById('register-username').value;
const email = document.getElementById('register-email').value;
const department = document.getElementById('register-department').value;
const position = document.getElementById('register-position').value;
const password = document.getElementById('register-password').value;
if (!username || !email || !department || !position || !password) return ui.showMessage('All fields are required.', true);
if (state.db.staff.find(s => s.username === username)) return ui.showMessage('Username already exists.', true);
state.db.staff.push({ id: `staff-${Date.now()}`, username, email, department, position, password });
ui.showMessage('Staff registered! Please save the database.');
ui.render();
},
login: () => {
if (!state.db) return ui.showMessage('Load a database first.', true);
const username = document.getElementById('login-username').value;
const password = document.getElementById('login-password').value;
const staff = state.db.staff.find(s => s.username === username && s.password === password);
if (staff) {
state.currentStaff = staff;
logic.switchView('department');
} else { ui.showMessage('Invalid credentials.', true); }
},
logout: () => {
state.currentStaff = null;
state.selectedDept = null;
state.selectedYear = null;
logic.switchView('login');
},
selectDept: (el) => {
state.selectedDept = el.dataset.dept;
logic.switchView('year');
},
selectYear: (el) => {
state.selectedYear = el.dataset.year;
logic.switchView('attendanceEntry');
},
addStudent: () => {
if (!state.selectedDept || !state.selectedYear) return ui.showMessage('Select class from Home first.', true);
const name = document.getElementById('student-name-input').value;
const regNo = document.getElementById('student-regno-input').value;
if (!name || !regNo) return ui.showMessage('Name and Register No. are required.', true);
if (state.db.students.find(s => s.regNo.toLowerCase() === regNo.toLowerCase())) return ui.showMessage('Register number already exists.', true);
state.db.students.push({ id: `student-${Date.now()}`, name, regNo, department: state.selectedDept, year: state.selectedYear, attendance: {} });
ui.showMessage('Student added. Remember to save the database!');
ui.render();
},
addSubject: () => {
const name = document.getElementById('subject-name-input').value.trim();
if (!name) return ui.showMessage('Subject name cannot be empty.', true);
state.db.subjects.push({ id: `sub-${Date.now()}`, name, staffId: state.currentStaff.id });
ui.showMessage('Subject added. Remember to save the database!');
ui.render();
},
saveTimetable: () => {
if (!state.db.timetable[state.selectedDept]) state.db.timetable[state.selectedDept] = {};
if (!state.db.timetable[state.selectedDept][state.selectedYear]) state.db.timetable[state.selectedDept][state.selectedYear] = {};
document.querySelectorAll('.timetable-select').forEach(select => {
const day = select.dataset.day;
const hour = select.dataset.hour;
const subjectId = select.value;
if (!state.db.timetable[state.selectedDept][state.selectedYear][day]) {
state.db.timetable[state.selectedDept][state.selectedYear][day] = {};
}
if (subjectId) {
state.db.timetable[state.selectedDept][state.selectedYear][day][hour] = subjectId;
} else {
delete state.db.timetable[state.selectedDept][state.selectedYear][day][hour];
}
});
ui.showMessage('Timetable saved. Remember to save the database!');
},
submitAttendance: () => {
const date = document.getElementById('attendance-date').value;
const hour = document.getElementById('attendance-hour').value;
const { subjectId } = logic.getScheduledSubject();
const absentCheckboxes = document.querySelectorAll('#attendance-student-list input[type="checkbox"]:checked');
const absentRegNos = Array.from(absentCheckboxes).map(cb => cb.dataset.regno);
const studentsInClass = state.db.students.filter(s => s.department === state.selectedDept && s.year == state.selectedYear);
studentsInClass.forEach(student => {
if (!student.attendance[date]) student.attendance[date] = {};
student.attendance[date][hour] = { status: absentRegNos.includes(student.regNo) ? 'A' : 'P', subjectId };
});
ui.showMessage(`Attendance for Hour ${hour} recorded. Save DB to persist.`);
},
selectPeriod: (el) => {
document.querySelectorAll('.period-btn').forEach(b => b.className = 'period-btn flex-1 bg-gray-200 text-gray-800 py-2 rounded-lg');
el.className = 'period-btn flex-1 bg-purple-800 text-white py-2 rounded-lg';
logic.generateReport(el.dataset.period);
},
shareReport: () => {
const periodEl = document.querySelector('.period-btn.bg-purple-800');
if (!periodEl) return ui.showMessage('Please generate a report first.', true);
const hod = state.db.staff.find(s => s.department === state.selectedDept && s.position === 'HOD');
const advisor = state.db.staff.find(s => s.department === state.selectedDept && s.position === 'Class Advisor');
const emails = [hod?.email, advisor?.email].filter(Boolean);
if(emails.length === 0) return ui.showMessage('No HOD or Advisor email found for this department.', true);
// This part is left as an exercise for the user to implement based on their needs
ui.showMessage(`This would open an email to: ${emails.join(', ')}`, false);
},
downloadReport: () => {
if (!state.db || !state.selectedDept || !state.selectedYear) return ui.showMessage('Select a class first.', true);
const studentsInClass = state.db.students.filter(s => s.department === state.selectedDept && s.year == state.selectedYear);
if (studentsInClass.length === 0) return ui.showMessage('No students in this class.', true);
let csvContent = "data:text/csv;charset=utf-8,Date,Hour,Register Number,Name,Department,Year,Subject,Status\r\n";
studentsInClass.forEach(student => {
Object.keys(student.attendance).sort().forEach(date => {
Object.keys(student.attendance[date]).sort((a,b) => a-b).forEach(hour => {
const record = student.attendance[date][hour];
const subject = (state.db.subjects || []).find(s => s.id === record.subjectId);
const subjectName = subject ? subject.name.replace(/,/g, '') : 'General';
const status = record.status === 'P' ? 'Present' : 'Absent';
let row = [date, hour, student.regNo, student.name.replace(/,/g, ''), student.department, student.year, subjectName, status].join(',');
csvContent += row + '\r\n';
});
});
});
const encodedUri = encodeURI(csvContent);
const link = document.createElement("a");
link.setAttribute("href", encodedUri);
link.setAttribute("download", `Full_Report_${state.selectedDept}_${state.selectedYear}yr.csv`);
document.body.appendChild(link);
link.click();
document.body.removeChild(link);
},
analyzeStudent: async (el) => {
const studentId = el.dataset.studentid;
const student = state.db.students.find(s => s.id === studentId);
if (!student) return;
ui.showModal('<div class="flex justify-center items-center p-8"><div class="loader"></div></div>');
const period = document.querySelector('.period-btn.bg-purple-800').dataset.period;
const { startDate, endDate } = util.getDateRange(period);
let absentDetails = [];
Object.keys(student.attendance).forEach(dateStr => {
const recordDate = new Date(dateStr);
if (recordDate >= startDate && recordDate <= endDate) {
const hours = student.attendance[dateStr];
Object.keys(hours).forEach(hour => {
if (hours[hour].status === 'A') {
const subject = (state.db.subjects || []).find(s => s.id === hours[hour].subjectId);
absentDetails.push(`- On ${dateStr} for Hour ${hour} (Subject: ${subject ? subject.name : 'General'})`);
}
});
}
});
const prompt = `Analyze the attendance of a student named ${student.name} for the selected period. Here is the list of their absences:\n${absentDetails.length > 0 ? absentDetails.join('\n') : 'This student has no absences in this period.'}\n\nBased on this data, write a concise, professional summary suitable for a teacher or parent. If attendance is good, provide positive reinforcement. If attendance is poor (more than 3 absences), express concern and suggest monitoring. Start the summary with the student's name. Keep it to 2-3 short paragraphs.`;
const analysis = await logic.callGeminiAPI(prompt);
ui.showModal(`<p>${analysis.replace(/\n/g, '<br>')}</p>`);
},
closeModal: () => ui.hideModal(),
};
// --- Utility Functions ---
const util = {
getYearSuffix: (year) => {
if (year == 1) return 'st'; if (year == 2) return 'nd'; if (year == 3) return 'rd'; return 'th';
},
capitalize: (s) => s.charAt(0).toUpperCase() + s.slice(1),
getViewTitle: (view) => {
const titles = { department: 'Select Department', year: state.selectedDept || 'Select Year', studentManagement: 'Manage Students', attendanceEntry: 'Take Attendance', reports: 'Reports & Analytics', manage: 'Management', subjects: 'My Subjects', timetable: 'Set Timetable', profile: 'My Profile', dbManager: 'Database Settings' };
return titles[view] || 'Attendance';
},
getDateRange: (period) => {
const today = new Date();
let startDate = new Date(today);
let endDate = new Date(today);
startDate.setHours(0, 0, 0, 0);
endDate.setHours(23, 59, 59, 999);
if (period === 'week') {
startDate.setDate(today.getDate() - today.getDay() + (today.getDay() === 0 ? -6 : 1));
} else if (period === 'month') {
startDate = new Date(today.getFullYear(), today.getMonth(), 1);
}
return { startDate, endDate };
}
};
// --- Central Event Listener ---
document.body.addEventListener('click', (e) => {
let target = e.target;
while(target && target !== document.body) {
const action = target.dataset.action;
const view = target.dataset.view;
const period = target.dataset.period;
if (action && actions[action]) { e.preventDefault(); actions[action](target); return; }
if (view && actions.switchView) { e.preventDefault(); actions.switchView(target); return; }
if (period && actions.selectPeriod) { e.preventDefault(); actions.selectPeriod(target); return; }
target = target.parentElement;
}
});
document.body.addEventListener('change', (e) => {
if (e.target.id === 'load-db-input') actions.loadDb(e.target);
if (e.target.id === 'attendance-hour') ui.render(); // Re-render to update scheduled subject
});
// --- Initial Load ---
logic.switchView('login');
});
</script>
</body>
</html>
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