implemented ContractStatus query

Author: reuvenpo

src/contract.rs

@@ -228,6 +228,7 @@ pub fn query<S: Storage, A: Api, Q: Querier>(deps: &Extern<S, A, Q>, msg: QueryM
     match msg {
         QueryMsg::TokenInfo {} => query_token_info(&deps.storage),
         QueryMsg::TokenConfig {} => query_token_config(&deps.storage),
+        QueryMsg::ContractStatus {} => query_contract_status(&deps.storage),
         QueryMsg::ExchangeRate {} => query_exchange_rate(&deps.storage),
         QueryMsg::Minters { .. } => query_minters(deps),
         _ => authenticated_queries(deps, msg),
@@ -331,6 +332,14 @@ fn query_token_config<S: ReadonlyStorage>(storage: &S) -> QueryResult {
     })
 }
 
+fn query_contract_status<S: ReadonlyStorage>(storage: &S) -> QueryResult {
+    let config = ReadonlyConfig::from_storage(storage);
+
+    to_binary(&QueryAnswer::ContractStatus {
+        status: config.contract_status(),
+    })
+}
+
 pub fn query_transfers<S: Storage, A: Api, Q: Querier>(
     deps: &Extern<S, A, Q>,
     account: &HumanAddr,

src/msg.rs

@@ -310,6 +310,7 @@ pub enum HandleAnswer {
 pub enum QueryMsg {
     TokenInfo {},
     TokenConfig {},
+    ContractStatus {},
     ExchangeRate {},
     Allowance {
         owner: HumanAddr,
@@ -370,6 +371,9 @@ pub enum QueryAnswer {
         mint_enabled: bool,
         burn_enabled: bool,
     },
+    ContractStatus {
+        status: ContractStatusLevel,
+    },
     ExchangeRate {
         rate: Uint128,
         denom: String,