# Edumacflow Enhancement Implementation Log

This document tracks all manual changes and feature additions made to the Edumacflow codebase.

## Phase 1: Database Utility Suite (2026-04-07)
**Objective**: Provide School Admin with self-service database maintenance tools.

### 📄 Files Created/Modified
1.  **portal/pages/db_management.php** (New)
    *   Implements `Full Backup`, `Database Compression (Optimization)`, and `Database Restoration`.
    *   Uses native `mysqli` and `PHP` header management for file downloads.
2.  **portal/sidebar.php** (Modified)
    *   Added "Database Management" link under "School Settings" submenu.

---

## Phase 2: Offline-Online Synchronization (2026-04-07)
**Objective**: Bridge the gap between local offline data and the remote web portal.

### 📄 Files Created/Modified
1.  **db_update_sync.php** (New/Migration)
    *   Script to update existing tables (`results1`, `students`, `invoice`) with `is_synced` columns.
    *   Adds `remote_sync_url` and `sync_api_key` columns to the `administratives` table.
2.  **portal/pages/sync_manager.php** (New)
    *   Created the **Synchronization Hub** to configure and trigger data synchronization.
    *   Includes `cURL` logic to push local JSON data to a remote listener.
3.  **portal/sidebar.php** (Modified)
    *   Added "Synchronization Hub" link under "School Settings".

---

## Technical Debt / Known Issues
- **Permissions**: Each new page (`db_management`, `sync_manager`, `elibrary`) requires a manual entry in the `permissions` table to become visible to specific roles.
- **Remote Endpoint**: The remote server requires a corresponding `sync_receiver.php` to handle incoming JSON push from Phase 2.

---

## Phase 3: Digital E-Library (2026-04-07)
**Objective**: Transform the curriculum module into a full Digital Library for E-Books, Class Notes, and Assignments.

### 📄 Files Created/Modified
1.  **db_update_elibrary.php** (New/Migration)
    *   Adds `category` and `description` columns to the existing `curriculum` table.
    *   Safe to run multiple times (checks if columns exist before adding).
2.  **portal/pages/elibrary.php** (New)
    *   Full Digital Library interface with:
        *   Statistics cards (E-Books, Class Notes, Assignments, Total).
        *   Filter panel (by Class and Category).
        *   Material upload modal supporting multiple file types (PDF, DOC, ZIP).
        *   Download and Delete actions per record.
    *   Uploads are stored in `uploads/elibrary/` directory.
3.  **portal/pages/student_elibrary.php** (New)
    *   Student-facing read-only library view with:
        *   Card-based grid layout grouped by material type.
        *   Automatic class-filtering — students only see materials for their registered class.
        *   Subject and Category filter dropdowns.
        *   Secure direct file download with `Content-Disposition` headers.
4.  **portal/sidebar.php** (Modified — additional entry)
    *   Added "Digital Library" link for **students** (permission: `student_elibrary`).

---
*Created by Antigravity AI*

---

## Phase 4: Inbuilt Mailing System & Smart Defaulters Tracker (2026-04-07)
**Objective**: Enable internal communication between staff/students and provide live financial defaulters reporting.

### 📄 Files Created/Modified
1.  **db_update_mail.php** (New/Migration)
    *   Creates the `internal_mail` table with fields: sender, recipient type (All/Admin/Teacher/Student), subject, message body, read status, and timestamp.
2.  **portal/pages/mailbox.php** (New)
    *   Full internal messaging system replacing the static `mails.php` shell.
    *   Features: Inbox, Sent Box, Read View, Delete, and Compose Modal.
    *   Compose supports: Broadcast to All, specific Teacher, specific Student, or Admin.
    *   Unread badge count shown in sidebar link.
3.  **portal/pages/defaulters_tracker.php** (New)
    *   Smart fee defaulters tracker linked directly to `invoice` and `fee_payment` tables.
    *   Auto-calculates balance due per student using live data (no manual entry needed).
    *   Features: Summary cards (total defaulters, outstanding balance, fees collected), Class/Session/Term filters, urgency colour-coding (red = high debt, yellow = medium), CSV export button, and quick "Send Reminder" shortcut to Mailbox.
4.  **portal/sidebar.php** (Modified)
    *   Added `Mailbox` as a top-level sidebar link (icon: `fa-envelope`).
    *   Added `Defaulters Tracker` inside the Invoice Management submenu.

### 📋 New Permissions Required
| Permission Key        | Who Should Have Access       |
|-----------------------|------------------------------|
| `mailbox`             | Admin, Teachers, Students    |
| `defaulters_tracker`  | Admin, Accountant            |

---

## Phase 5: Smart Attendance System (2026-04-11)
**Objective**: Modernize the attendance tracking process by integrating QR-code scanning and providing offline CSV synchronization tools.

### 📄 Files Created/Modified
1.  **portal/pages/qr_attendance.php** (New)
    *   Integrates HTML5-QRCode to use device cameras for scanning student ID cards.
    *   Saves roll calls instantly using the scanned identification.
2.  **portal/pages/import_attendance.php & export_attendance.php** (New)
    *   Allows class attendance datasets to be imported seamlessly using standardized CSV formats or exported for offline recording backups.
3.  **portal/pages/class_attendance.php** (Modified)
    *   Injected "Import CSV" and "Export CSV" directly into the UI matching the Edumacflow dashboard structure.
4.  **portal/sidebar.php** (Modified)
    *   Added "QR-Code Scanner" navigation link under the Attendance submenu.

### 📋 New Permissions Required
| Permission Key        | Who Should Have Access       |
|-----------------------|------------------------------|
| `qr_attendance`       | Teachers, Admin              |

---

## Phase 6: Attendance Module Bug Fixes & UI Polish (2026-04-15)
**Objective**: Resolve critical bugs in the attendance import/export pipeline and complete the PWA + Dashboard modernization initiated in the previous session.

### 📄 Files Created/Modified
1.  **portal/pages/export_attendance.php** (Fixed)
    *   Removed broken `include` for deprecated PHPExcel library (caused fatal errors).
    *   Rewrote using `mysqli` prepared statement to prevent SQL injection.
    *   Added UTF-8 BOM header so exported CSV opens correctly in Microsoft Excel.
    *   Added input validation — rejects export if class or date is empty.
2.  **portal/pages/class_attendance.php** (Fixed)
    *   Both the **Import CSV** and **Export CSV** forms now have their own built-in `Date` picker and `Class` dropdown, making them fully self-contained.
    *   Removed the fragile JS hack that tried to dynamically inject hidden fields into the forms — it only worked after the class member table was rendered.
3.  **assets/css/custom-theme.css** (Enhanced)
    *   Added dashboard widget colour classes: `.total-class` (purple), `.total-teacher` (pink-red), `.total-student` (sky blue), `.total-subject` (green-teal).
    *   Added dark mode overrides for card headers, list groups, and progress bars.
    *   Added mobile-first responsive breakpoints (576px / 768px) for widget sizing.
    *   Added `countUp` fade-in animation for widget number values.
    *   Added `#pwa-install-banner` CSS with pill shape and slide-up animation.
4.  **portal/footer.php** (Enhanced)
    *   Added the PWA install prompt banner HTML + JavaScript using the `beforeinstallprompt` event.
    *   Banner respects `sessionStorage` so it doesn't re-appear after being dismissed.

---

## Phase 7: Excel / CSV Result Upload Suite & Attendance Term Modernization (2026-08-14)
**Objective**: Expose and engineer the spreadsheet (Excel/CSV) export and batch import architecture for class results, supporting both Single Subject and Subject Combination formats.

### 📄 Files Created/Modified
1.  **portal/pages/excel_result_upload.php** (New)
    *   Admin & Principal dual-panel interface with Export (CSV) and Import (CSV) forms, supporting Single Subject and "★ All Subjects Combination" batch formats.
2.  **portal/pages/teacher_excel_result_upload.php** (Upgraded)
    *   Teacher interface with teacher-class assignment scoping, current season defaults, and format guidelines.
3.  **portal/pages/PHPExcel.php & teacher_PHPExcel.php** (Upgraded)
    *   Generates native CSV exports with student roster details and existing score pre-population.
4.  **portal/pages/result_upload_excel.php & teacher_result_upload_excel.php** (Upgraded)
    *   Processes CSV score batches with row validation, upsert database logic (`results1`), score summation (`ca1 + ca2 + exam`), and automatic multi-subject ranking re-calculation.
5.  **portal/pages/modules.php & teacher_dashboard.php** (Modified)
    *   Added "Excel / CSV Result Upload" navigation links under `Result Management` menus and registered routes.
6.  **Score Upload Manual Pages** (Modified)
    *   Injected green "Excel / CSV Result Upload & Export" quick-access action buttons on `admin_upload_ca.php`, `admin_upload_exam.php`, `vp_upload_ca.php`, `vp_upload_exam.php`, `teacher_upload_ca.php`, `teacher_upload_exam.php`, `subject_teacher_upload_ca.php`, `subject_teacher_upload_exam.php`, `upload_ca.php`, `upload_exam.php`.
7.  **Attendance Term Dropdowns** (Fixed)
    *   Updated `portal/pages/qr_attendance.php`, `class_attendance.php`, `view_attendance_records.php`, and `teacher_view_attendance.php` to render all 3 academic terms with active term default selection.

---

## Phase 8: Permission Matrix Audit, Auto-Seeding & Session Security (2026-08-15)
**Objective**: Harden role-based access control, enforce 30-minute idle session timeouts, and auto-seed database permissions for all user roles.

### 📄 Files Created/Modified
1.  **portal/check_permission.php** (Hardened)
    *   Added 30-minute idle session inactivity check with safe redirection to login with timeout notice.
    *   Added query-string extraction to accurately validate permissions when accessing routes via `modules.php` and `teacher_dashboard.php`.
    *   Added role-aware redirection to route teachers back to `teacher_dashboard.php` and admins to `dashboard.php`.
2.  **db_update_permissions.php** (Enhanced & Executed)
    *   Expanded permission mapping dictionary with `excel_result_upload`, `teacher_excel_result_upload`, `mailbox`, `defaulters_tracker`, `elibrary`, `qr_attendance`, `view_class_broadsheet`, `teacher_view_broadsheet`.
    *   Executed database update to map all permission IDs to `School admin`, `super admin`, `class teacher`, `subject teacher`, `Accountant`, `Exam Officer`, and `student`.

---

## Phase 9: Class Broadsheet Suite (Excel / CSV, PDF & Live Ranking) (2026-08-15)
**Objective**: Build a complete 1-click exportable broadsheet engine supporting Excel/CSV and PDF downloads, with live ordinal ranking and performance KPI cards.

### 📄 Files Created/Modified
1.  **portal/export_broadsheet_excel.php & portal/pages/export_broadsheet_excel.php** (New)
    *   Created full CSV exporter fetching class subject scores, computing CA1, CA2, Exam, and Subject totals, overall totals, averages, and student class positions.
    *   Added institutional headers, UTF-8 BOM, and summary KPI analytics.
2.  **portal/pages/view_class_broadsheet.php** (Upgraded)
    *   Added instant on-screen rank/position computation (1st, 2nd, 3rd, etc.) with trophy badges.
    *   Added action toolbar with direct "Export Excel (.CSV)", "Download Official PDF", and "Print" buttons.
    *   Added 4-column KPI cards for Total Students, Subjects Computed, Highest Average, and Class Mean Average.
3.  **portal/pages/teacher_view_broadsheet.php** (Upgraded)
    *   Added teacher class scoping, default current season selection, KPI metric cards, and 1-click export buttons.
4.  **portal/pages/teacher_dashboard.php** (Fixed)
    *   Fixed route definition to ensure both `teacher_view_class_broadsheet` and `teacher_view_broadsheet` load `teacher_view_broadsheet.php` cleanly.

---

## Phase 10: Automated Database Backup, Maintenance & Disaster Recovery Engine (2026-08-15)
**Objective**: Build an enterprise-grade automated backup cron engine, table optimizer, and disaster recovery point.

### 📄 Files Created/Modified
1.  **portal/backup_cron.php** (New)
    *   CLI & Web-executable automated backup engine.
    *   Generates full database schema and record dumps, compresses to `.zip`, and prunes snapshots older than 30 days.
2.  **portal/pages/db_management.php** (Upgraded)
    *   Built comprehensive 4-tab database dashboard: Live Backups & Server Snapshots, Table Health & Storage Diagnostics, Disaster Recovery Restore Point, and Automated Scheduler Guide.
    *   Added real-time KPI overview cards for Database Size, Total Records, Fragmentation Overhead, and Latest Snapshot.
    *   Integrated one-click actions for table optimization (`OPTIMIZE TABLE`), table repair (`REPAIR TABLE`), and query analysis (`ANALYZE TABLE`).
3.  **portal/backups/.htaccess & portal/backups/index.html** (New)
    *   Restricted directory access to protect backup files against unauthorized downloads.
4.  **portal/pages/modules.php** (Updated)
    *   Added route registration for `db_management`, `sync_manager`, `defaulters_tracker`, `elibrary`, `mailbox`, and `qr_attendance`.

---

## Phase 11: Full Progressive Web App (PWA) Suite & Offline Resilience (2026-08-15)
**Objective**: Build a complete, installable Progressive Web App with service worker caching, smart offline fallback, and native app shortcuts.

### 📄 Files Created/Modified
1.  **manifest.json** (Upgraded)
    *   Configured standalone app display, theme colors, 192x192 & 512x512 maskable icons, and quick-access shortcuts (CBT, Broadsheets, Attendance, Defaulters).
2.  **sw.js** (Upgraded to v3.0)
    *   Pre-caches core application shell, font-awesome icons, and offline templates.
    *   Network-first strategy for dynamic PHP navigation with seamless fallback to `offline.html`.
    *   Stale-while-revalidate strategy for static JS, CSS, and webfonts.
3.  **offline.html** (Redesigned)
    *   Glassmorphism UI with live connectivity status ping and automated online event listener that reloads the previous page when internet returns.
4.  **portal/footer.php & portal/sidebar.php** (Upgraded)
    *   Added `window.triggerPwaInstall()` global function and sidebar **"📱 Install EdumacFlo App"** button.
5.  **index.php & cbt/student/partials/header.php** (Updated)
    *   Integrated PWA manifest link and Service Worker registration across public and CBT panels.

---

## Phase 12: Student Mass Onboarding & Class-Based Export Suite (2026-08-16)
**Objective**: Enable bulk onboarding of students from spreadsheets and class-based CSV/Excel exports for offline editing and auditing.

### 📄 Files Created/Modified
1.  **portal/pages/import_students.php** (New)
    *   Mass CSV student import interface supporting multi-class bulk intake and single-class enforcement modes.
    *   Auto-derives academic level (`NURSERY`, `PRIMARY`, `UPPER BASIC`, `SENIOR SECTION`) dynamically from the `classes` database table.
    *   Auto-generates sequential unique admission numbers with school prefix (`EDM/YY/XXXXXX`) when omitted.
    *   Generates secure default passwords hashed with bcrypt (`PASSWORD_DEFAULT`).
    *   Validates duplicates and renders a visual real-time summary with row-by-row error diagnostics.
2.  **portal/download_student_template.php** (New)
    *   Direct streaming CSV template generator with pre-filled sample rows and UTF-8 BOM encoding for Excel compatibility.
    *   Supports class parameter to pre-fill specific target classes.
3.  **portal/pages/export_students.php** (New)
    *   Filterable class roster export UI with class, gender, and status selectors.
    *   Side summary card displaying real-time enrolment counts per class.
4.  **portal/export_students_excel.php** (New)
    *   Direct streaming CSV export engine that fetches and streams matching student records.
5.  **portal/sidebar.php** (Modified)
    *   Added `Import Students (Mass Upload)` and `Export Students (By Class)` links under the `Student` treeview dropdown.
6.  **portal/check_permission.php** (Modified)
    *   Registered `download_student_template` and `export_students_excel` into excluded pages for smooth streaming downloads.
7.  **Database Permissions (`permissions` & `role_permissions`)**
    *   Added permissions: `import_students`, `export_students`, `download_student_template`.
    *   Mapped permissions to Super Admin (`role_id = 11`) and School Admin (`role_id = 3`).

---

## Phase 13: Production Cleanup, Security Hardening & Live Staging (2026-08-16)
**Objective**: Clean up leftover development artifacts, harden web server configurations, eliminate security bypasses, and prepare the project for client-ready live deployment.

### 📄 Files Created/Modified
1.  **Production Cleanup (Deleted obsolete files)**
    *   Removed `test.php`, `portal/login_test.php`, `portal/auto_login.php`.
    *   Removed over 5MB of historical error logs (`error_log` in root, portal, pages, cbt, contact).
    *   Removed raw development notes (`needed_query`, `portal/pages/needed query.txt`), legacy archives (`cbt/tcpdf.zip`), and composer binaries (`qr-attendance/composer.phar`, `composer-temp.phar`).
2.  **database/ & database/migrations/** (Reorganized)
    *   Moved standalone database update scripts to `database/migrations/` and protected the folder with `database/.htaccess` (`Require all denied`).
3.  **public/db_config.sample.php** (New)
    *   Standard database config template for live production / staging setup.
4.  **Web Server & Security Configuration Hardening**
    *   `.htaccess` (Root): Disabled directory listing (`Options -Indexes`), added HTTP security headers (`nosniff`, `SAMEORIGIN`, `X-XSS-Protection`), and blocked access to sensitive configuration, log, and environment files.
    *   `public/.htaccess`: Denied direct browser access (HTTP 403) to internal server include scripts.
    *   `uploads/.htaccess` & `cbt/uploads/.htaccess`: Blocked direct PHP script execution inside upload folders to prevent remote code execution.
    *   `portal/backups/.htaccess`: Hardened archive access denial for Apache 2.2 and 2.4+.
5.  **Application Security Hardening**
    *   `public/auth.php`: Added `session_regenerate_id(true)` upon successful login to prevent session fixation.
    *   `portal/index.php`: Added strict alphanumeric/dash sanitization to `$page` parameter to eliminate directory traversal risks.
6.  **docs/LIVE_DEPLOYMENT_GUIDE.md** (New)
    *   Complete step-by-step production staging guide covering database setup, file permissions, server configuration, sample client accounts, and verification checks.

