user_profile.mnm

# user_profile.mnm — User profile with preferences and access tracking
#
# Tracks user preferences, expertise, and interaction patterns.
# Demonstrates multiple memories, update rules, and varied queries.
#
# Usage:
#   synapse apply examples/user_profile.mnm --port 9090
#
#   # Record a preference
#   synapse emit set_preference '{"user_id": "u1", "key": "theme", "value": "dark"}'
#   synapse emit set_preference '{"user_id": "u1", "key": "language", "value": "python"}'
#
#   # Record an interaction
#   synapse emit interaction '{"user_id": "u1", "topic": "machine learning", "sentiment": 0.9}'
#
#   # Query user preferences
#   synapse query GetPreferences '{"user_id": "u1"}'
#
#   # Query interactions
#   synapse query TopTopics '{"user_id": "u1"}'

config {
    storage: sqlite("./data/profiles.db")
}

# User preference key-value store
memory Preference {
    user_id: string
    key: string
    value: string
    updated_at: timestamp
}

# User interaction log
memory Interaction {
    user_id: string
    topic: string
    sentiment: float[0.0,1.0]
    created_at: timestamp
}

# Set or update a user preference
on set_preference(user_id: string, key: string, value: string) {
    store(Preference {
        user_id: user_id,
        key: key,
        value: value,
        updated_at: now()
    })
}

# Log a user interaction
on interaction(user_id: string, topic: string, sentiment: float) {
    store(Interaction {
        user_id: user_id,
        topic: topic,
        sentiment: sentiment,
        created_at: now()
    })
}

# Get all preferences for a user
query GetPreferences(user_id: string): Preference[] {
    from Preference
    where user_id == user_id
    order by updated_at desc
}

# Get a specific preference
query GetPreference(user_id: string, key: string): Preference[] {
    from Preference
    where user_id == user_id
    limit 1
}

# Get top interaction topics for a user
query TopTopics(user_id: string): Interaction[] {
    from Interaction
    where user_id == user_id
    order by sentiment desc
    limit 10
}

# Preferences auto-update on conflict (newer wins)
update Preference {
    on_conflict(old, new) {
        supersede(old, new)
    }
}