Initial implementation attempt (not accurate)

greymass · Feb 12, 2025 · 38b1ccf · 38b1ccf
1 parent 6d9bc9c
commit 38b1ccf
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diff --git a/contracts/api/include/api/api.hpp b/contracts/api/include/api/api.hpp
@@ -24,6 +24,14 @@ struct get_account_response
    eosiosystem::voter_info                       vote;
 };
 
+struct get_rex_apy_response
+{
+   double   apy;
+   uint64_t total_lendable;
+   uint64_t current_rate_of_increase;
+   uint64_t proceeds;
+};
+
 struct get_available_response
 {
    name account;
@@ -82,6 +90,9 @@ class [[eosio::contract("api")]] api : public contract
    [[eosio::action, eosio::read_only]] get_available_response available(const name account);
    using available_action = action_wrapper<"available"_n, &api::available>;
 
+   [[eosio::action, eosio::read_only]] get_rex_apy_response rexapy();
+   using rexapy_action = action_wrapper<"rexapy"_n, &api::rexapy>;
+
    [[eosio::action, eosio::read_only]] std::vector<asset>
    balances(const name account, const std::vector<token_definition> tokens, const bool zerobalances);
    using balances_action = action_wrapper<"balances"_n, &api::balances>;
@@ -122,6 +133,9 @@ class [[eosio::contract("api")]] api : public contract
    [[eosio::action, eosio::read_only]] eosiosystem::rex_fund rexfund(const name account);
    using rexfund_action = action_wrapper<"rexfund"_n, &api::rexfund>;
 
+   [[eosio::action, eosio::read_only]] eosiosystem::rex_return_pool rexretpool();
+   using rexretpool_action = action_wrapper<"rexretpool"_n, &api::rexretpool>;
+
    [[eosio::action, eosio::read_only]] eosiosystem::voter_info votes(const name account);
    using vote_action = action_wrapper<"votes"_n, &api::votes>;
 
@@ -136,6 +150,7 @@ class [[eosio::contract("api")]] api : public contract
    eosiosystem::eosio_global_state               get_global(const config_row config);
    eosiosystem::exchange_state                   get_rammarket(const config_row config);
    eosiosystem::rex_pool                         get_rex_pool(const config_row config);
+   eosiosystem::rex_return_pool                  get_rex_return_pool(const config_row config);
    eosiosystem::powerup_state                    get_powerup(const config_row config);
    eosiosystem::refund_request                   get_refund_request(const config_row config, const name account);
    eosiosystem::rex_balance                      get_rex_balance(const config_row config, const name account);

diff --git a/contracts/api/src/api.cpp b/contracts/api/src/api.cpp
@@ -284,6 +284,37 @@ api::balances(const name account, const std::vector<token_definition> tokens, co
    return get_contract_hash(config, account);
 }
 
+eosiosystem::rex_return_pool api::get_rex_return_pool(const api::config_row config)
+{
+   eosiosystem::rex_return_pool       rexretpool;
+   eosiosystem::rex_return_pool_table rexretpool_table(config.system_contract, config.system_contract.value);
+   auto                               rexretpool_itr = rexretpool_table.begin();
+   if (rexretpool_itr != rexretpool_table.end()) {
+      rexretpool = *rexretpool_itr;
+   }
+   return rexretpool;
+}
+
+[[eosio::action, eosio::read_only]] eosiosystem::rex_return_pool api::rexretpool()
+{
+   return get_rex_return_pool(get_config());
+}
+
+[[eosio::action, eosio::read_only]] get_rex_apy_response api::rexapy()
+{
+   // NYI: CALCULATION INCORRECT
+   auto       config  = get_config();
+   auto       pool    = get_rex_pool(config);
+   auto       retpool = get_rex_return_pool(config);
+   const auto apy     = (((proceeds + current_rate_of_increase) / 30 * 365) / total_lendable * 100);
+   return {
+      .apy                      = apy,
+      .total_lendable           = total_lendable,
+      .current_rate_of_increase = current_rate_of_increase,
+      .proceeds                 = proceeds,
+   };
+}
+
 [[eosio::action]] void api::setconfig(const name   system_contract,
                                       const name   system_contract_msig,
                                       const name   system_token_contract,