Randomness tier subscription (#90)

* feat: upgradeable contract

* feat: prenium management

* feat: randomness fee management

* fix: example randomness types

* fix: issues in randomness contract

* fix: uncomment code

* ✨ mock oracle

* 🐛 camel case abi

* feat: balance management tests

* fix: residuals

* feat: out of gas verification

* fix: tests

* feat: fetch all out of gas requests

* fix: fmt

* feat: more tests

* fix: fmt

* remove comments

* feat: spell ignore

* feat: withdraw + error management

* fix: decimal adjustment

* fix: remove unused function

* feat: admin management

---------

Co-authored-by: 0xevolve <[email protected]>

.codespellignore

@@ -0,0 +1 @@
+requestor

Scarb.toml

@@ -10,7 +10,7 @@ alexandria_storage = { git = "https://github.com/keep-starknet-strange/alexandri
 alexandria_data_structures = { git = "https://github.com/keep-starknet-strange/alexandria.git", rev = "46c8d8ab9e3bfb68b70a29b3246f809cd8bf70e4" }
 alexandria_sorting = { git = "https://github.com/keep-starknet-strange/alexandria.git", rev = "46c8d8ab9e3bfb68b70a29b3246f809cd8bf70e4" }
 cubit = { git = "https://github.com/influenceth/cubit", rev = "2ccb2536dffa3f15ebd38b755c1be65fde1eab0c" }
-
+openzeppelin = { git = "https://github.com/OpenZeppelin/cairo-contracts.git", tag = "v0.7.0" }
 starknet = "2.2.0"
 
 [[target.starknet-contract]]

src/lib.cairo

@@ -18,6 +18,7 @@ mod operations {
 }
 mod oracle {
     mod oracle;
+    mod mock_oracle;
 }
 mod publisher_registry {
     mod publisher_registry;

src/oracle/mock_oracle.cairo

@@ -0,0 +1,37 @@
+use pragma::entry::structs::{DataType, PragmaPricesResponse};
+
+#[starknet::interface]
+trait IOracle<TContractState> {
+    fn get_data_median(self: @TContractState, data_type: DataType) -> PragmaPricesResponse;
+}
+
+#[starknet::contract]
+mod MockOracle {
+    use starknet::{get_block_timestamp};
+    use super::{IOracle, PragmaPricesResponse, DataType};
+    use option::OptionTrait;
+
+    #[storage]
+    struct Storage {}
+
+    #[constructor]
+    fn constructor(ref self: ContractState) {
+        return ();
+    }
+
+    #[external(v0)]
+    impl IOracleImpl of IOracle<ContractState> {
+        /// @notice Returns a fixed mocked price of 1000 USD
+        fn get_data_median(self: @ContractState, data_type: DataType) -> PragmaPricesResponse {
+            let timestamp = get_block_timestamp();
+            PragmaPricesResponse {
+                price: 100000000000,
+                decimals: 8,
+                last_updated_timestamp: timestamp,
+                num_sources_aggregated: 5,
+                expiration_timestamp: Option::None,
+            }
+        }
+    }
+}
+

src/randomness/example_randomness.cairo

@@ -7,7 +7,7 @@ trait IExampleRandomness<TContractState> {
         ref self: TContractState,
         seed: u64,
         callback_address: ContractAddress,
-        callback_gas_limit: u64,
+        callback_gas_limit: u128,
         publish_delay: u64,
         num_words: u64
     );
@@ -49,7 +49,7 @@ mod ExampleRandomness {
             ref self: ContractState,
             seed: u64,
             callback_address: ContractAddress,
-            callback_gas_limit: u64,
+            callback_gas_limit: u128,
             publish_delay: u64,
             num_words: u64
         ) {