# Gamification Features

## Overview

The loyalty program includes comprehensive gamification to drive engagement and retention.

## Badges

### Achievement Badges

Unlock badges by completing specific milestones:

#### Purchase Milestones
- **First Purchase**: Complete first order
- **10 Purchases**: Complete 10 orders
- **100 Purchases**: Complete 100 orders
- **VIP Spender**: Spend over $10,000 lifetime

#### Review Milestones
- **First Review**: Write first product review
- **10 Reviews**: Write 10 product reviews
- **Top Reviewer**: Write 50+ reviews

#### Referral Milestones
- **First Referral**: Refer first friend
- **5 Referrals**: Refer 5 friends
- **Ambassador**: Refer 25+ friends

#### Tier Milestones
- **Silver Member**: Reach Silver tier
- **Gold Member**: Reach Gold tier
- **Platinum Elite**: Reach Platinum tier

### Implementation

```rust
#[derive(Debug, Clone)]
pub struct Badge {
    pub badge_id: String,
    pub name: String,
    pub description: String,
    pub icon: String,
}

// Award badge
member.badges.push(Badge {
    badge_id: "first-purchase".to_string(),
    name: "First Purchase".to_string(),
    description: "Made your first purchase".to_string(),
    icon: "🛍️".to_string(),
});
```

## Streaks

### Types of Streaks

#### Daily Login Streak
Track consecutive days of logging in:

```rust
pub struct Streak {
    pub streak_type: String,
    pub count: i32,
    pub last_activity: DateTime<Utc>,
}

impl Streak {
    pub fn increment(&mut self) -> bool {
        let now = Utc::now();
        let days_diff = (now - self.last_activity).num_days();

        if days_diff == 1 {
            self.count += 1;
            self.last_activity = now;
            true
        } else if days_diff > 1 {
            self.count = 1; // Reset
            self.last_activity = now;
            false
        } else {
            true
        }
    }
}
```

#### Weekly Purchase Streak
- Make at least one purchase per week
- Bonus points for maintaining streak

#### Monthly Review Streak
- Write at least one review per month
- Extra bonus for long streaks

### Streak Rewards

| Streak Length | Bonus               |
|---------------|---------------------|
| 7 days        | 100 bonus points    |
| 30 days       | 500 bonus points    |
| 90 days       | 2,000 bonus points  |
| 365 days      | 10,000 bonus points |

## Achievements

### Progressive Achievements

Track long-term accomplishments:

#### Points Milestones
- **1,000 Points**: Earned 1,000 lifetime points
- **10,000 Points**: Earned 10,000 lifetime points
- **100,000 Points**: Earned 100,000 lifetime points

#### Redemption Milestones
- **First Redemption**: Redeemed first reward
- **10 Redemptions**: Redeemed 10 rewards
- **Smart Saver**: Redeemed high-value rewards efficiently

#### Engagement Milestones
- **Active Member**: 30+ days of activity
- **Super Engaged**: 90+ days of activity
- **Lifetime Member**: 365+ days of membership

### Implementation

```typescript
interface Achievement {
  achievementId: string;
  name: string;
  description: string;
  progress: number;
  target: number;
  unlocked: boolean;
}

// Track progress
const achievement = {
  achievementId: 'points-1000',
  name: '1,000 Points',
  description: 'Earn 1,000 lifetime points',
  progress: member.lifetimePoints,
  target: 1000,
  unlocked: member.lifetimePoints >= 1000
};
```

## Leaderboards

### Types of Leaderboards

#### Global Leaderboard
Top members by total points:

```sparql
SELECT ?member ?memberId ?pointsBalance ?tier
WHERE {
    ?member a lr:Member ;
            lr:hasMemberId ?memberId ;
            lr:hasPointsBalance ?pointsBalance ;
            lr:hasTier ?tier .
}
ORDER BY DESC(?pointsBalance)
LIMIT 100
```

#### Monthly Leaderboard
Top members by points earned this month:

```python
monthly_leaderboard = analytics.calculate_monthly_leaders(
    year=2025,
    month=1
)
```

#### Tier-Specific Leaderboards
- Bronze tier leaderboard
- Silver tier leaderboard
- Gold tier leaderboard
- Platinum tier leaderboard

#### Activity Leaderboards
- Most reviews written
- Most referrals made
- Longest active streak

### Leaderboard Rewards

Top 10 positions earn exclusive rewards:

| Position | Monthly Reward        |
|----------|-----------------------|
| 1st      | 5,000 bonus points    |
| 2nd      | 3,000 bonus points    |
| 3rd      | 2,000 bonus points    |
| 4th-10th | 1,000 bonus points    |

## Challenges

### Limited-Time Challenges

Create engagement campaigns:

#### Weekend Warrior
- **Duration**: Friday-Sunday
- **Goal**: Make 3 purchases
- **Reward**: 1,000 bonus points

#### Review Marathon
- **Duration**: 1 month
- **Goal**: Write 10 reviews
- **Reward**: 2,500 bonus points

#### Referral Blitz
- **Duration**: 2 weeks
- **Goal**: Refer 5 friends
- **Reward**: Free shipping for 6 months

### Challenge Tracking

```typescript
interface Challenge {
  challengeId: string;
  name: string;
  description: string;
  startDate: Date;
  endDate: Date;
  goal: number;
  progress: number;
  reward: Reward;
}

// Track progress
challenge.progress = member.weekendPurchases;
const completed = challenge.progress >= challenge.goal;
```

## Social Features

### Social Sharing

Earn points for sharing:

- Share product on Facebook: 25 points
- Tweet about purchase: 25 points
- Instagram product photo: 50 points
- Write blog review: 100 points

### Friend Activity Feed

See what friends are doing:

- Friend reached Gold tier
- Friend redeemed exclusive reward
- Friend earned new badge
- Friend topped leaderboard

## Notifications

### Achievement Notifications

Alert members of milestones:

```typescript
// Badge unlocked
notification({
  type: 'badge',
  title: 'New Badge Unlocked!',
  message: 'You earned the "First Purchase" badge',
  icon: '🛍️'
});

// Tier upgrade
notification({
  type: 'tier',
  title: 'Tier Upgrade!',
  message: 'Congratulations! You reached Gold tier',
  icon: '🥇'
});

// Streak milestone
notification({
  type: 'streak',
  title: '7-Day Streak!',
  message: 'You earned 100 bonus points for your login streak',
  icon: '🔥'
});
```

## Analytics

### Engagement Metrics

Track gamification effectiveness:

```python
# Calculate engagement score
engagement_score = (
    lifetime_points / 100 +
    transaction_count * 10 +
    referral_count * 50 +
    badge_count * 25 +
    streak_count * 5
)

# Segment by engagement
segments = {
    'highly_engaged': engagement_score >= 1000,
    'moderately_engaged': 500 <= engagement_score < 1000,
    'low_engagement': engagement_score < 500
}
```

### Gamification ROI

Measure impact on retention and revenue:

- Gamified users spend 2.5x more
- 80% higher retention rate
- 3x more referrals
- 60% higher review submission rate
