#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct Schedule {
    pub id: String,
    pub zone_id: String,
    pub name: String,
    #[serde(default = "default_true")]
    pub enabled: bool,
    /// ISO weekday numbers, Monday=1, Sunday=7.
    pub weekdays: Vec<u32>,
    /// Local time HH:MM.
    pub start_time: String,
    /// Local time HH:MM. Ranges crossing midnight are supported.
    pub end_time: String,
    /// comfort/sleep/away/custom. Non-custom profiles resolve their target from the zone.
    #[serde(default = "default_schedule_preset")]
    pub preset: String,
    pub setpoint: f64,
    pub created_at: DateTime<Utc>,
    pub updated_at: DateTime<Utc>,
    /// Present for records generated by the visual Flow editor. Generated records are read-only
    /// in the legacy schedule/automation editors; the Flow remains the source of truth.
    #[serde(default)]
    pub flow_id: Option<String>,
    #[serde(default)]
    pub flow_node_id: Option<String>,
}

#[derive(Debug, Clone, Serialize, Deserialize, Default, PartialEq)]
pub struct FlowRuntimeNodeState {
    #[serde(default)]
    pub since: Option<DateTime<Utc>>,
    #[serde(default)]
    pub samples: Vec<FlowRuntimeSample>,
    /// Last observed raw/result value for edge/change detection blocks.
    #[serde(default)]
    pub last_value: Option<Value>,
}

#[derive(Debug, Clone, Serialize, Deserialize, PartialEq)]
pub struct FlowRuntimeSample {
    pub at: DateTime<Utc>,
    pub value: f64,
}

#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct Automation {
    pub id: String,
    pub name: String,
    #[serde(default = "default_true")]
    pub enabled: bool,
    /// temperature_above, temperature_below, time, flow
    pub trigger_kind: String,
    #[serde(default)]
    pub trigger_device_id: Option<String>,
    #[serde(default)]
    pub threshold: Option<f64>,
    #[serde(default)]
    pub at_time: Option<String>,
    /// Legacy/direct-device target. Empty when this automation targets a group.
    #[serde(default)]
    pub action_device_id: String,
    /// Optional climate group target. When set, the action is applied to every member zone/device.
    #[serde(default)]
    pub action_group_id: Option<String>,
    /// Optional thermostat preset used only for group actions.
    #[serde(default)]
    pub action_preset: Option<String>,
    #[serde(default)]
    pub action: DeviceCommand,
    #[serde(default = "default_cooldown")]
    pub cooldown_seconds: u64,
    #[serde(default)]
    pub last_fired_at: Option<DateTime<Utc>>,
    /// Optional Flow-owned thermostat zone target.
    #[serde(default)]
    pub action_zone_id: Option<String>,
    #[serde(default)]
    pub action_zone_preset: Option<String>,
    #[serde(default)]
    pub action_ha_domain: Option<String>,
    #[serde(default)]
    pub action_ha_service: Option<String>,
    #[serde(default)]
    pub action_ha_entity_id: Option<String>,
    #[serde(default)]
    pub action_ha_data: Value,
    /// Topologically ordered condition/logic program compiled from the visual Flow graph.
    #[serde(default)]
    pub flow_conditions: Vec<FlowCondition>,
    #[serde(default)]
    pub flow_id: Option<String>,
    #[serde(default)]
    pub flow_node_id: Option<String>,
    /// Durable state for stateful Flow blocks (timers, change detection, rate limits and rolling samples).
    #[serde(default)]
    pub flow_runtime: BTreeMap<String, FlowRuntimeNodeState>,
    pub created_at: DateTime<Utc>,
    pub updated_at: DateTime<Utc>,
}