feat: api fungibles pallet (#113)

Co-authored-by: Frank Bell <[email protected]>

pallets/api/Cargo.toml

@@ -1,13 +1,13 @@
 [package]
-name = "pallet-api"
 authors.workspace = true
 description = "API pallet, enabling smart(er) contracts with the power of Polkadot"
 edition.workspace = true
 license.workspace = true
+name = "pallet-api"
 version = "0.1.0"
 
 [package.metadata.docs.rs]
-targets = ["x86_64-unknown-linux-gnu"]
+targets = [ "x86_64-unknown-linux-gnu" ]
 
 [dependencies]
 codec.workspace = true
@@ -31,30 +31,30 @@ sp-core.workspace = true
 sp-io.workspace = true
 
 [features]
-default = ["std"]
+default = [ "std" ]
 runtime-benchmarks = [
-    "frame-benchmarking/runtime-benchmarks",
-    "frame-support/runtime-benchmarks",
-    "frame-system/runtime-benchmarks",
-    "pallet-assets/runtime-benchmarks",
-    "sp-runtime/runtime-benchmarks",
+	"frame-benchmarking/runtime-benchmarks",
+	"frame-support/runtime-benchmarks",
+	"frame-system/runtime-benchmarks",
+	"pallet-assets/runtime-benchmarks",
+	"sp-runtime/runtime-benchmarks",
 ]
 std = [
-    "codec/std",
-    "frame-benchmarking/std",
-    "frame-support/std",
-    "frame-system/std",
-    "pallet-assets/std",
-    "pallet-balances/std",
-    "pop-chain-extension/std",
-    "scale-info/std",
-    "sp-core/std",
-    "sp-io/std",
-    "sp-runtime/std",
-    "sp-std/std",
+	"codec/std",
+	"frame-benchmarking/std",
+	"frame-support/std",
+	"frame-system/std",
+	"pallet-assets/std",
+	"pallet-balances/std",
+	"pop-chain-extension/std",
+	"scale-info/std",
+	"sp-core/std",
+	"sp-io/std",
+	"sp-runtime/std",
+	"sp-std/std",
 ]
 try-runtime = [
-    "frame-support/try-runtime",
-    "frame-system/try-runtime",
-    "sp-runtime/try-runtime",
+	"frame-support/try-runtime",
+	"frame-system/try-runtime",
+	"sp-runtime/try-runtime",
 ]

primitives/src/lib.rs

@@ -232,7 +232,7 @@ pub mod v0 {
 		}
 
 		/// Description of what went wrong when trying to complete an operation on a token.
-		#[derive(Encode, Decode, Clone, Debug, MaxEncodedLen, Eq, PartialEq, Ord, PartialOrd)]
+		#[derive(Encode, Decode, Debug, Eq, PartialEq)]
 		#[cfg_attr(feature = "std", derive(TypeInfo))]
 		pub enum TokenError {
 			/// Funds are unavailable.

runtime/devnet/src/config/api.rs

@@ -0,0 +1,34 @@
+use crate::{config::assets::TrustBackedAssetsInstance, fungibles, Runtime, RuntimeCall};
+use codec::{Decode, Encode, MaxEncodedLen};
+use frame_support::traits::Contains;
+
+/// A query of runtime state.
+#[derive(Encode, Decode, Debug, MaxEncodedLen)]
+#[repr(u8)]
+pub enum RuntimeRead<T: fungibles::Config> {
+	/// Fungible token queries.
+	#[codec(index = 150)]
+	Fungibles(fungibles::Read<T>),
+}
+
+impl fungibles::Config for Runtime {
+	type AssetsInstance = TrustBackedAssetsInstance;
+	type WeightInfo = fungibles::weights::SubstrateWeight<Runtime>;
+}
+
+/// A type to identify allowed calls to the Runtime from contracts. Used by Pop API
+pub struct AllowedApiCalls;
+
+impl Contains<RuntimeCall> for AllowedApiCalls {
+	fn contains(c: &RuntimeCall) -> bool {
+		use fungibles::Call as FungiblesCall;
+		matches!(
+			c,
+			RuntimeCall::Fungibles(
+				FungiblesCall::transfer { .. }
+					| FungiblesCall::approve { .. }
+					| FungiblesCall::increase_allowance { .. }
+			)
+		)
+	}
+}