Struct Affinity 

pub struct Affinity {

    pub id: Uuid,
    pub session_id: Uuid,
    pub user_id: Uuid,
    pub instance_id: Uuid,
    pub warmth: f64,
    pub trust: f64,
    pub intrigue: f64,
    pub intimacy: f64,
    pub patience: f64,
    pub tension: f64,
    pub ghost_streak: i32,
    pub last_ghost_at: Option<DateTime<Utc>>,
    pub total_ghosts: i32,
    pub relationship_label: Option<RelationshipLabel>,
    pub created_at: DateTime<Utc>,
    pub updated_at: DateTime<Utc>,
}

Fields

id: Uuid

session_id: Uuid

user_id: Uuid

instance_id: Uuid

warmth: f64

trust: f64

intrigue: f64

intimacy: f64

patience: f64

tension: f64

ghost_streak: i32

last_ghost_at: Option<DateTime<Utc>>

total_ghosts: i32

relationship_label: Option<RelationshipLabel>

created_at: DateTime<Utc>

updated_at: DateTime<Utc>

Implementations

impl Affinity

pub fn apply_deltas(&mut self, d: &AffinityDeltas, ema_inertia: f64)

Apply LLM-evaluated deltas with EMA smoothing. ema_inertia ∈ [0, 1] — 0 means full update; v1 default is 0.5 (gain 0.5).

pub fn apply_time_decay(&mut self)

pub fn legacy_relationship_label(&self) -> RelationshipLabel

Legacy 5-name relationship label (back-compat), derived purely from the two line scores — replaces the old multi-axis infer_label heuristic. New consumers should read bond_label/chemistry_label. frenemy is retired from emission (kept in the enum for parse compat).

impl Affinity

pub fn bond_score(&self) -> f64

0..1 friendship composite. warmth floored at 0; mirrors the bond generated column in migration 0029.

pub fn chemistry_score(&self) -> f64

0..1 romance composite. warmth floored at 0; mirrors the chemistry generated column in migration 0029.

pub fn bond_label(&self) -> BondLabel

Friendship-line tier label.

pub fn chemistry_label(&self) -> ChemistryLabel

Romance-line tier label.

Trait Implementations

impl Clone for Affinity

fn clone(&self) -> Affinity

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for Affinity

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for Affinity

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl PartialEq for Affinity

fn eq(&self, other: &Affinity) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Serialize for Affinity

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for Affinity