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use holo_hash::*;
use holochain_sqlite::rusqlite::named_params;
use holochain_types::dht_op::DhtOpType;
use holochain_types::prelude::Judged;
use holochain_zome_types::*;
use std::fmt::Debug;
use super::*;
#[derive(Debug, Clone)]
pub struct GetRecordDetailsQuery(ActionHash, Option<Arc<AgentPubKey>>);
impl GetRecordDetailsQuery {
pub fn new(hash: ActionHash) -> Self {
Self(hash, None)
}
}
#[derive(Debug)]
pub struct State {
action: Option<SignedActionHashed>,
rejected_action: Option<SignedActionHashed>,
deletes: HashSet<SignedActionHashed>,
updates: HashSet<SignedActionHashed>,
}
impl Query for GetRecordDetailsQuery {
type Item = Judged<SignedActionHashed>;
type State = State;
type Output = Option<RecordDetails>;
fn query(&self) -> String {
"
SELECT Action.blob AS action_blob, DhtOp.validation_status AS status
FROM DhtOp
JOIN Action On DhtOp.action_hash = Action.hash
WHERE DhtOp.type IN (:create_type, :delete_type, :update_type)
AND DhtOp.basis_hash = :action_hash
AND DhtOp.when_integrated IS NOT NULL
AND DhtOp.validation_status IS NOT NULL
"
.into()
}
fn params(&self) -> Vec<Params> {
let params = named_params! {
":create_type": DhtOpType::StoreRecord,
":delete_type": DhtOpType::RegisterDeletedBy,
":update_type": DhtOpType::RegisterUpdatedRecord,
":action_hash": self.0,
};
params.to_vec()
}
fn as_map(&self) -> Arc<dyn Fn(&Row) -> StateQueryResult<Self::Item>> {
let f = |row: &Row| {
let action =
from_blob::<SignedAction>(row.get(row.as_ref().column_index("action_blob")?)?)?;
let SignedAction(action, signature) = action;
let action = ActionHashed::from_content_sync(action);
let shh = SignedActionHashed::with_presigned(action, signature);
let status = row.get(row.as_ref().column_index("status")?)?;
let r = Judged::new(shh, status);
Ok(r)
};
Arc::new(f)
}
fn as_filter(&self) -> Box<dyn Fn(&QueryData<Self>) -> bool> {
let action_filter = self.0.clone();
let f = move |action: &QueryData<Self>| {
let action = &action;
if *action.action_address() == action_filter {
true
} else {
match action.action() {
Action::Delete(Delete {
deletes_address, ..
}) => *deletes_address == action_filter,
Action::Update(Update {
original_action_address,
..
}) => *original_action_address == action_filter,
_ => false,
}
}
};
Box::new(f)
}
fn init_fold(&self) -> StateQueryResult<Self::State> {
Ok(State {
action: Default::default(),
rejected_action: Default::default(),
deletes: Default::default(),
updates: Default::default(),
})
}
fn fold(&self, mut state: Self::State, item: Self::Item) -> StateQueryResult<Self::State> {
let (shh, validation_status) = item.into();
if *shh.as_hash() == self.0 {
if state.action.is_none() && state.rejected_action.is_none() {
match validation_status {
Some(ValidationStatus::Valid) => {
state.action = Some(shh);
}
Some(ValidationStatus::Rejected) => {
state.rejected_action = Some(shh);
}
_ => (),
}
}
} else {
match shh.action() {
Action::Update(Update {
original_action_address,
..
}) if *original_action_address == self.0 => {
state.updates.insert(shh);
}
Action::Delete(Delete {
deletes_address, ..
}) if *deletes_address == self.0 => {
state.deletes.insert(shh);
}
_ => (),
}
}
Ok(state)
}
fn render<S>(&self, state: Self::State, stores: S) -> StateQueryResult<Self::Output>
where
S: Store,
{
let State {
action,
rejected_action,
deletes,
updates,
} = state;
let (action, validation_status) = match (action, rejected_action) {
(None, None) => return Ok(None),
(None, Some(h)) => (h, ValidationStatus::Rejected),
(Some(h), None) => (h, ValidationStatus::Valid),
(Some(_), Some(h)) => {
(h, ValidationStatus::Rejected)
}
};
let mut entry = None;
if let Some(entry_hash) = action.action().entry_hash() {
let author = self
.1
.as_ref()
.map(|a| a.as_ref())
.filter(|a| *a == action.action().author());
entry = stores.get_public_or_authored_entry(entry_hash, author)?;
}
let record = Record::new(action, entry);
let details = RecordDetails {
record,
validation_status,
deletes: deletes.into_iter().collect(),
updates: updates.into_iter().collect(),
};
Ok(Some(details))
}
}
impl PrivateDataQuery for GetRecordDetailsQuery {
type Hash = ActionHash;
fn with_private_data_access(hash: Self::Hash, author: Arc<AgentPubKey>) -> Self {
Self(hash, Some(author))
}
fn without_private_data_access(hash: Self::Hash) -> Self {
Self::new(hash)
}
}