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osmosis-oracle: better subscription process
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,7 +1,99 @@ | ||
| use std::collections::HashMap; | ||
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| use cosmwasm_schema::cw_serde; | ||
| use cosmwasm_std::{Addr, IbcChannel, StdError, Storage}; | ||
| use cw_storage_plus::Item; | ||
|
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| use crate::error::ContractError; | ||
|
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| #[cw_serde] | ||
| pub struct Config { | ||
| pub admin: Addr, | ||
| } | ||
|
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| pub struct Subscriptions { | ||
| by_denom: Item<'static, HashMap<String, Subscription>>, | ||
| inactive: Item<'static, Vec<IbcChannel>>, | ||
| } | ||
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| impl Subscriptions { | ||
| pub(crate) const fn new() -> Self { | ||
| Self { | ||
| by_denom: Item::new("subscriptions_by_denom"), | ||
| inactive: Item::new("subscriptions_inactive"), | ||
| } | ||
| } | ||
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| pub(crate) fn init(&self, storage: &mut dyn Storage) -> Result<(), StdError> { | ||
| self.by_denom.save(storage, &HashMap::new())?; | ||
| self.inactive.save(storage, &vec![])?; | ||
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| Ok(()) | ||
| } | ||
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| pub(crate) fn register_channel( | ||
| &self, | ||
| storage: &mut dyn Storage, | ||
| channel: IbcChannel, | ||
| ) -> Result<(), ContractError> { | ||
| self.inactive.update(storage, |mut v| { | ||
| if v.iter().find(|c| **c == channel).is_some() { | ||
| Err(ContractError::IbcChannelAlreadyOpen) | ||
| } else { | ||
| v.push(channel); | ||
| Ok(v) | ||
| } | ||
| })?; | ||
|
|
||
| Ok(()) | ||
| } | ||
|
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| pub(crate) fn bind_channel( | ||
| &self, | ||
| storage: &mut dyn Storage, | ||
| channel: IbcChannel, | ||
| denom: String, | ||
| pool_id: u64, | ||
| ) -> Result<(), ContractError> { | ||
| self.inactive.update(storage, |mut v| { | ||
| if let Some((ix, _)) = v.iter().enumerate().find(|(_, c)| **c == channel) { | ||
| v.remove(ix); | ||
| Ok(v) | ||
| } else { | ||
| Err(ContractError::IbcChannelNotOpen) | ||
| } | ||
| })?; | ||
|
|
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| self.by_denom.update(storage, |mut map| { | ||
| map.insert(denom, Subscription { channel, pool_id }) | ||
| .is_none() | ||
| .then_some(map) | ||
| .ok_or(ContractError::SubscriptionAlreadyExists) | ||
| })?; | ||
|
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| Ok(()) | ||
| } | ||
|
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| pub(crate) fn subs( | ||
| &self, | ||
| storage: &mut dyn Storage, | ||
| ) -> Result<impl Iterator<Item = (String, Subscription)>, ContractError> { | ||
| let list = self.by_denom.load(storage)?; | ||
|
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| Ok(list.into_iter()) | ||
| } | ||
|
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| pub(crate) fn remove_channel( | ||
| &self, | ||
| _storage: &mut dyn Storage, | ||
| _channel: &IbcChannel, | ||
| ) -> Result<(), ContractError> { | ||
| todo!() | ||
| } | ||
| } | ||
|
|
||
| #[cw_serde] | ||
| pub struct Subscription { | ||
| pub channel: IbcChannel, | ||
| pub pool_id: u64, | ||
| } | ||
