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Added some known blockchains

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This commit is contained in:
Arthur Roberts
2024-07-11 20:58:22 +01:00
parent bc50e0e088
commit f6f9575fa0
1 changed files with 49 additions and 8 deletions
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57
src/lib.rs
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@@ -1,20 +1,61 @@
use std::convert::Into;
use chrono::prelude::*;
// TODO review whether a genesis block has a block height of 1 or 0
pub enum BlockchainSupported {
BTC,
BSV,
XMR,
ETH,
}
type BlockHeight = i64;
pub struct BlockchainBlockInfo {
pub struct BlockchainInfo {
block_period: u64, // in seconds maybe?
latest_block_height: BlockHeight,
latest_block_time: DateTime<Utc>,
}
pub fn time_to_blockheight(time: DateTime<Utc>, blockchain: BlockchainBlockInfo) -> BlockHeight {
let time_difference = (time - blockchain.latest_block_time).num_seconds();
let num_blocks = time_difference / blockchain.block_period as i64;
num_blocks + blockchain.latest_block_height
impl From<BlockchainSupported> for BlockchainInfo {
fn from (val: BlockchainSupported) -> Self {
match val {
BlockchainSupported::BTC => BlockchainInfo {
block_period: 10 * 60, // 10 minutes,
latest_block_height: 851724,
latest_block_time: Utc.with_ymd_and_hms(2024, 7, 11, 19, 38, 6).unwrap(),
},
BlockchainSupported::BSV => BlockchainInfo {
block_period: 10 * 60, // 10 minutes,
latest_block_height: 852792,
latest_block_time: Utc.with_ymd_and_hms(2024, 7, 11, 19, 53, 7).unwrap(),
},
BlockchainSupported::XMR => BlockchainInfo {
block_period: 2 * 60, // 2 minutes,
latest_block_height: 3190705,
latest_block_time: Utc.with_ymd_and_hms(2024, 7, 11, 19, 54, 11).unwrap(),
},
BlockchainSupported::ETH => BlockchainInfo {
block_period: 12, // TODO investigate what the story is here... I don't think it's as simple as 12
latest_block_height: 20285486,
latest_block_time: Utc.with_ymd_and_hms(2024, 7, 11, 19, 53, 59).unwrap(),
},
}
}
}
pub fn time_to_blockheight_specific_chain(time: DateTime<Utc>, blockchain: BlockchainSupported) -> BlockHeight {
let bi: BlockchainInfo = blockchain.into();
time_to_blockheight(time, bi)
}
pub fn time_to_blockheight(time: DateTime<Utc>, bi: BlockchainInfo) -> BlockHeight {
let time_difference = (time - bi.latest_block_time).num_seconds();
let num_blocks = time_difference / bi.block_period as i64;
num_blocks + bi.latest_block_height
}
#[cfg(test)]
@@ -25,7 +66,7 @@ mod tests {
fn one_block_time_away() {
let latest_block_time = Utc.with_ymd_and_hms(2024, 10, 10, 10, 10, 0).unwrap();
let wanted_future_block_time = Utc.with_ymd_and_hms(2024, 10, 10, 10, 20, 1).unwrap();
let blockchain_info = BlockchainBlockInfo {
let blockchain_info = BlockchainInfo {
block_period: 60 * 10, // 10 minutes
latest_block_height: 1000,
latest_block_time,
@@ -38,7 +79,7 @@ mod tests {
fn one_block_time_previous() {
let latest_block_time = Utc.with_ymd_and_hms(2024, 10, 10, 10, 20, 1).unwrap();
let wanted_future_block_time = Utc.with_ymd_and_hms(2024, 10, 10, 10, 10, 0).unwrap();
let blockchain_info = BlockchainBlockInfo {
let blockchain_info = BlockchainInfo {
block_period: 60 * 10, // 10 minutes
latest_block_height: 1000,
latest_block_time,
@@ -51,7 +92,7 @@ mod tests {
fn negative_block_time() {
let latest_block_time = Utc.with_ymd_and_hms(2024, 10, 10, 10, 30, 0).unwrap();
let wanted_negative_block_time = Utc.with_ymd_and_hms(2024, 10, 10, 10, 10, 0).unwrap();
let blockchain_info = BlockchainBlockInfo {
let blockchain_info = BlockchainInfo {
block_period: 60 * 10, // 10 minutes
latest_block_height: 1,
latest_block_time,