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use schemars::JsonSchema;
use serde::{Deserialize, Serialize};
use crate::{FeeRate, Sats, Timestamp, Txid, VSize};
/// Transaction summary carried inside an RBF replacement node. Shape
/// matches mempool.space's `/api/v1/tx/:txid/rbf` and
/// `/api/v1/replacements` responses.
#[derive(Debug, Clone, Serialize, Deserialize, JsonSchema)]
pub struct RbfTx {
pub txid: Txid,
pub fee: Sats,
pub vsize: VSize,
/// Sum of output amounts.
pub value: Sats,
pub rate: FeeRate,
pub time: Timestamp,
/// BIP-125 signaling: at least one input has sequence < 0xffffffff-1.
pub rbf: bool,
/// Only populated on the root `tx` of an RBF response. `true` iff
/// this tx displaced at least one non-signaling predecessor.
#[serde(rename = "fullRbf", skip_serializing_if = "Option::is_none", default)]
pub full_rbf: Option<bool>,
}
/// One node in an RBF replacement tree. The node's `tx` replaced each
/// entry in `replaces`, recursively.
#[derive(Debug, Clone, Serialize, Deserialize, JsonSchema)]
pub struct ReplacementNode {
pub tx: RbfTx,
/// First-seen timestamp, duplicated here to match mempool.space's
/// on-the-wire shape.
pub time: Timestamp,
/// Any predecessor in this subtree was non-signaling.
#[serde(rename = "fullRbf")]
pub full_rbf: bool,
/// Seconds between this node's `time` and the successor that
/// replaced it. Omitted on the root of an RBF response.
#[serde(skip_serializing_if = "Option::is_none")]
pub interval: Option<u32>,
/// `Some(true)` iff this node's tx is currently confirmed. Absent
/// on serialization otherwise.
#[serde(skip_serializing_if = "Option::is_none", default)]
pub mined: Option<bool>,
pub replaces: Vec<ReplacementNode>,
}
/// Response body for `GET /api/v1/tx/:txid/rbf`. Both fields are null
/// when the tx has no known RBF history within the mempool monitor's
/// graveyard retention window.
#[derive(Debug, Clone, Serialize, Deserialize, JsonSchema)]
pub struct RbfResponse {
pub replacements: Option<ReplacementNode>,
pub replaces: Option<Vec<Txid>>,
}
impl RbfResponse {
pub const EMPTY: Self = Self {
replacements: None,
replaces: None,
};
}