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use std::{collections::HashMap, convert::TryFrom};
use property::Property;
use serde_derive::Deserialize;
use ckb_types::H256;
use crate::{
blockchain::{Bundled, DepGroupId, Network},
error::{Error, Result},
};
lazy_static::lazy_static! {
static ref SYSTEM_DEPS: SystemDeps = SystemDeps::initialize().unwrap();
}
#[derive(Deserialize)]
struct RawSpecHashes {
genesis: H256,
cellbase: H256,
system_cells: Vec<RawSystemCell>,
dep_groups: Vec<RawDepGroup>,
}
#[derive(Deserialize)]
struct RawSystemCell {
path: String,
tx_hash: H256,
index: usize,
data_hash: H256,
type_hash: Option<H256>,
}
#[derive(Deserialize)]
struct RawDepGroup {
included_cells: Vec<String>,
tx_hash: H256,
index: usize,
}
pub struct SystemDeps(HashMap<Network, SpecHashes>);
#[derive(Property, Debug, Clone)]
#[property(get(public), set(disable), mut(disable))]
pub struct SpecHashes {
genesis: H256,
cellbase: H256,
system_cells: HashMap<Bundled, SystemCell>,
dep_groups: HashMap<DepGroupId, DepGroup>,
}
#[derive(Property, Debug, Clone)]
#[property(get(public), set(disable), mut(disable))]
pub struct SystemCell {
tx_hash: H256,
index: usize,
data_hash: H256,
type_hash: Option<H256>,
}
#[derive(Property, Debug, Clone)]
#[property(get(public), set(disable), mut(disable))]
pub struct DepGroup {
tx_hash: H256,
index: usize,
}
fn network_from_spec_name(spec_name: &str) -> Result<Network> {
match spec_name {
"ckb" => Ok("mainnet"),
"ckb_testnet" => Ok("testnet"),
"ckb_staging" => Ok("staging"),
"ckb_dev" => Ok("develop"),
s => Ok(s),
}
.and_then(Network::try_from)
}
impl SystemDeps {
pub fn read() -> &'static Self {
&SYSTEM_DEPS
}
fn initialize() -> Result<Self> {
let raw_spec_hashes: HashMap<String, RawSpecHashes> =
toml::from_str(include_str!(concat!(env!("OUT_DIR"), "/hashes.toml"))).unwrap();
raw_spec_hashes
.into_iter()
.map(|(spec_name, raw_spec_values)| {
let network = network_from_spec_name(&spec_name)?;
let RawSpecHashes {
genesis,
cellbase,
system_cells,
dep_groups,
} = raw_spec_values;
let system_cells = system_cells
.into_iter()
.map(|raw_system_cell| {
let RawSystemCell {
path,
tx_hash,
index,
data_hash,
type_hash,
} = raw_system_cell;
let bundled = Bundled::try_from(path.as_str())?;
let system_cell = SystemCell {
tx_hash,
index,
data_hash,
type_hash,
};
Ok((bundled, system_cell))
})
.collect::<Result<HashMap<_, _>>>()?;
let dep_groups = dep_groups
.into_iter()
.map(|raw_dep_group| {
let RawDepGroup {
included_cells,
tx_hash,
index,
} = raw_dep_group;
let included_cells = included_cells
.into_iter()
.map(|path| Bundled::try_from(path.as_str()))
.collect::<Result<Vec<Bundled>>>()?;
let dep_group_id = DepGroupId::try_from(&included_cells[..])?;
let dep_group = DepGroup { tx_hash, index };
Ok((dep_group_id, dep_group))
})
.collect::<Result<HashMap<_, _>>>()?;
let spec_hashes = SpecHashes {
genesis,
cellbase,
system_cells,
dep_groups,
};
Ok((network, spec_hashes))
})
.collect::<Result<HashMap<_, _>>>()
.map(Self)
}
pub fn lookup_system_cell(&self, network: Network, key: Bundled) -> Result<&SystemCell> {
self.0
.get(&network)
.and_then(|spec| spec.system_cells.get(&key))
.ok_or_else(|| Error::UnknownSystemCell(network, key))
}
pub fn lookup_dep_group(&self, network: Network, key: DepGroupId) -> Result<&DepGroup> {
self.0
.get(&network)
.and_then(|spec| spec.dep_groups.get(&key))
.ok_or_else(|| Error::UnknownDepGroup(network, key))
}
}