Daily Task Tracker

A beautiful, feature-rich todo app with daily task tracking, automatic rollover of incomplete tasks, business day tracking, and optional category organization.

Features

Core Features

• Daily Task Board: View and manage tasks for any specific date
• Task Completion Tracking: Mark tasks as complete with visual feedback
• Automatic Rollover: Move all incomplete tasks from any past date to today with one click
• Drag Day Tracking: See how many business days (excluding weekends) a task has been pending
• Historical Logs: Browse and view what was accomplished on each day
• Progress Statistics: Real-time stats showing completed, pending, total, and dragged tasks

Theme & UI

• Light/Dark Mode: Toggle between themes with the 🌙/☀️ button
• Theme Persistence: Your preference is saved and remembered
• Modern UI: Beautiful design with smooth animations and responsive layout
• Custom Modals: Clean confirmation dialogs (no browser alerts)

Categories (Optional)

• Organize Tasks: Assign categories like Work, Personal, Misc to tasks
• Color Coded: Each category has a customizable color
• Filter by Category: View tasks by category in the sidebar or dropdown
• Manage Categories: Create, rename, and delete categories in Settings
• Toggle Feature: Enable/disable categories entirely in Settings

Settings & Customization

• Show Creation Date: Display when tasks were originally created
• Show Drag Days: Display how many days tasks have been pending
• Show Assigned Date: Display the date tasks are assigned to
• Enable Categories: Toggle the categories feature on/off

Timezone

• IST Support: All dates and times use Indian Standard Time (Asia/Kolkata)

Getting Started

Prerequisites

• Go 1.21 or higher
• SQLite3 (CGO enabled)

Installation

1. Clone or navigate to the project directory:

   cd TodoApp

2. Download dependencies:

   go mod tidy

3. Run the application:

   go run .

4. Open your browser and navigate to:

   http://localhost:8080
   

Building a Binary

For faster startup without compilation:

go build -o todoapp .
./todoapp

Usage

Adding Tasks

• Type your task in the input field and press Enter or click "Add Task"
• Tasks are automatically assigned to the currently selected date

Completing Tasks

• Click the checkbox next to a task to mark it as complete
• Completed tasks show with a strikethrough and green checkmark

Navigating Dates

• Use the ← Prev / Next → buttons to navigate between dates
• Use the date picker to jump to any specific date
• Click Today to quickly return to today's date

Rolling Over Tasks

• Click "Rollover Pending" to move ALL incomplete tasks from any past date to today
• Tasks retain their creation date for accurate drag day tracking

Viewing History

• The Historical Logs sidebar shows dates with task activity
• Counts show tasks completed ON that day (not just assigned)
• Click any date to view details in a modal

Using Categories

1. Go to Settings (⚙️ button)
2. Enable "Enable Categories"
3. Hover over any task → click 🏷️ to assign a category
4. Use the filter dropdown or sidebar to view tasks by category

Managing Categories

1. Go to Settings (⚙️ button)
2. Scroll to "Manage Categories" section
3. Click color picker to change category color
4. Edit name and press Enter to rename (confirmation modal appears)
5. Click 🗑️ to delete a category

Keyboard Shortcuts

Shortcut	Action
/	Focus the task input field
t	Toggle light/dark theme
Enter	Confirm action in modals
Escape	Close any open modal

API Endpoints

Tasks

Method	Endpoint	Description
GET	/api/tasks?date=YYYY-MM-DD	Get tasks for a specific date
POST	/api/tasks	Create a new task
PUT	/api/tasks/{id}	Update a task
DELETE	/api/tasks/{id}	Delete a task
PUT	/api/tasks/{id}/complete	Toggle task completion
PUT	/api/tasks/{id}/category	Update task's category

Daily Logs & History

Method	Endpoint	Description
GET	/api/daily-log?date=YYYY-MM-DD	Get daily log with stats
GET	/api/dates	Get all dates with tasks
GET	/api/history-summaries	Get completion stats for all dates

Rollover

Method	Endpoint	Description
POST	/api/rollover	Rollover tasks between specific dates
POST	/api/rollover-all	Rollover all past incomplete tasks to today
POST	/api/auto-rollover	Auto rollover from yesterday to today

Categories

Method	Endpoint	Description
GET	/api/categories	Get all categories with task counts
POST	/api/categories	Create a new category
PUT	/api/categories/{id}	Update a category
DELETE	/api/categories/{id}	Delete a category
GET	/api/categories/{id}/tasks	Get tasks for a category

Drag Day Calculation

The app calculates "drag days" - the number of business days a task has been pending since its creation:

• Only counts weekdays (Monday-Friday)
• Excludes Saturday and Sunday
• Shows orange warning when dragging begins (1-2 days)
• Shows red critical warning when dragged 3+ days

Project Structure

TodoApp/
├── main.go           # Application entry point and HTTP server
├── models.go         # Data structures (Task, Category, DailyLog)
├── database.go       # SQLite database operations & IST timezone
├── handlers.go       # HTTP request handlers
├── go.mod            # Go module dependencies
├── go.sum            # Dependency checksums
├── todo.db           # SQLite database (created on first run)
├── static/
│   └── index.html    # Frontend application (HTML, CSS, JS)
└── README.md         # This file

Data Storage

• Database: SQLite (file-based, no external server needed)
• Location: todo.db in the project directory
• Persistence: All data persists across server restarts
• Settings: User preferences stored in browser's localStorage

Browser Support

Modern browsers with ES6+ support:

• Chrome (recommended)
• Firefox
• Safari
• Edge

License

MIT License - feel free to use and modify as needed.