Simple-FItness-Tracker-using-Python

import json
from datetime import datetime, timedelta

class FitnessTracker:
    def __init__(self, user_name):
        self.user_name = user_name
        self.workouts = []
        self.goals = {}
        self.calories_burned = 0
        self.calories_intake = []
        self.reminders = []

def log_workout(self, workout_type, duration, calories):
    """Log a workout with type, duration, and calories burned."""
    workout = {
        "date": datetime.now().strftime("%Y-%m-%d %H:%M:%S"),
        "type": workout_type,
        "duration": duration,  # in minutes
        "calories": calories
    }
    self.workouts.append(workout)
    self.calories_burned += calories
    print(f"Workout logged: {workout_type} for {duration} minutes, {calories} calories burned.")

def log_calorie_intake(self, calories):
    """Log daily calorie intake."""
    self.calories_intake.append({
        "date": datetime.now().strftime("%Y-%m-%d"),
        "calories": calories
    })
    print(f"Calorie intake logged: {calories} calories.")

def set_goal(self, goal_type, target):
    """Set a fitness goal (e.g., weight loss, running distance)."""
    self.goals[goal_type] = target
    print(f"Goal set: {goal_type} target of {target}.")

def set_reminder(self, reminder_text, reminder_time):
    """Set a reminder for workouts or goals."""
    self.reminders.append({
        "text": reminder_text,
        "time": reminder_time.strftime("%Y-%m-%d %H:%M:%S")
    })
    print(f"Reminder set: {reminder_text} at {reminder_time}.")

def view_progress(self):
    """View workout history, calorie intake, and progress towards goals."""
    print(f"\nFitness Progress for {self.user_name}:")
    print(f"Total Calories Burned: {self.calories_burned}")
    print("\nWorkout History:")
    for workout in self.workouts:
        print(f"{workout['date']} - {workout['type']} for {workout['duration']} minutes, {workout['calories']} calories")
    print("\nCalorie Intake History:")
    for intake in self.calories_intake:
        print(f"{intake['date']} - {intake['calories']} calories")
    print("\nGoals:")
    for goal, target in self.goals.items():
        print(f"{goal}: {target}")
    print("\nReminders:")
    for reminder in self.reminders:
        print(f"{reminder['time']} - {reminder['text']}")

def calculate_bmi(self, weight, height):
    """Calculate Body Mass Index (BMI)."""
    bmi = weight / (height ** 2)
    print(f"Your BMI is: {bmi:.2f}")
    return bmi

def suggest_workout(self):
    """Suggest a workout based on goals."""
    if "weight_loss" in self.goals:
        print("Suggested workout: 30 minutes of high-intensity interval training (HIIT).")
    elif "strength" in self.goals:
        print("Suggested workout: 45 minutes of weight lifting.")
    else:
        print("Suggested workout: 30 minutes of brisk walking.")

def weekly_summary(self):
    """Generate a weekly summary of workouts and calorie intake."""
    end_date = datetime.now()
    start_date = end_date - timedelta(days=7)
    weekly_workouts = [w for w in self.workouts if start_date <= datetime.strptime(w["date"], "%Y-%m-%d %H:%M:%S") <= end_date]
    weekly_intake = [i for i in self.calories_intake if start_date <= datetime.strptime(i["date"], "%Y-%m-%d") <= end_date]

    total_calories_burned = sum(w["calories"] for w in weekly_workouts)
    total_calories_intake = sum(i["calories"] for i in weekly_intake)

    print("\nWeekly Summary:")
    print(f"Total Workouts: {len(weekly_workouts)}")
    print(f"Total Calories Burned: {total_calories_burned}")
    print(f"Total Calories Intake: {total_calories_intake}")
    print(f"Net Calories: {total_calories_intake - total_calories_burned}")

def save_data(self, filename):
    """Save user data to a file."""
    data = {
        "user_name": self.user_name,
        "workouts": self.workouts,
        "goals": self.goals,
        "calories_burned": self.calories_burned,
        "calories_intake": self.calories_intake,
        "reminders": self.reminders
    }
    with open(filename, "w") as file:
        json.dump(data, file)
    print(f"Data saved to {filename}.")

def load_data(self, filename):
    """Load user data from a file."""
    with open(filename, "r") as file:
        data = json.load(file)
    self.user_name = data["user_name"]
    self.workouts = data["workouts"]
    self.goals = data["goals"]
    self.calories_burned = data["calories_burned"]
    self.calories_intake = data["calories_intake"]
    self.reminders = data["reminders"]
    print(f"Data loaded from {filename}.")

Example Usage

if name == "main": # Create a fitness tracker for a user tracker = FitnessTracker("John Doe")

# Set fitness goals
tracker.set_goal("weight_loss", "lose 5 kg")
tracker.set_goal("running_distance", "run 10 km")

# Log workouts
tracker.log_workout("Running", 30, 300)
tracker.log_workout("Weight Lifting", 45, 200)

# Log calorie intake
tracker.log_calorie_intake(1800)
tracker.log_calorie_intake(2000)

# Set reminders
tracker.set_reminder("Time for a run!", datetime.now() + timedelta(hours=1))

# View progress
tracker.view_progress()

# Calculate BMI
tracker.calculate_bmi(70, 1.75)  # weight in kg, height in meters

# Get a suggested workout
tracker.suggest_workout()

# Generate weekly summary
tracker.weekly_summary()

# Save data to a file
tracker.save_data("fitness_data.json")

# Load data from a file
new_tracker = FitnessTracker("New User")
new_tracker.load_data("fitness_data.json")
new_tracker.view_progress()