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// Copyright 2019-2025 PureStake Inc.
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// This file is part of Moonbeam.
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// Moonbeam is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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// Moonbeam is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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// GNU General Public License for more details.
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// You should have received a copy of the GNU General Public License
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// along with Moonbeam.  If not, see <http://www.gnu.org/licenses/>.
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//! Moonriver Runtime Api Integration Tests
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mod common;
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use common::*;
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use fp_evm::{FeeCalculator, GenesisAccount};
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use frame_support::assert_ok;
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use nimbus_primitives::NimbusId;
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use pallet_evm::{Account as EVMAccount, AddressMapping};
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use sp_core::{ByteArray, H160, H256, U256};
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use fp_rpc::runtime_decl_for_ethereum_runtime_rpc_api::EthereumRuntimeRPCApi;
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use moonbeam_core_primitives::Header;
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use moonbeam_rpc_primitives_txpool::runtime_decl_for_tx_pool_runtime_api::TxPoolRuntimeApi;
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use moonriver_runtime::{Executive, TransactionPaymentAsGasPrice};
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use nimbus_primitives::runtime_decl_for_nimbus_api::NimbusApi;
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use std::{collections::BTreeMap, str::FromStr};
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#[test]
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fn ethereum_runtime_rpc_api_chain_id() {
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	ExtBuilder::default().build().execute_with(|| {
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		assert_eq!(Runtime::chain_id(), CHAIN_ID);
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	});
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}
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#[test]
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fn ethereum_runtime_rpc_api_account_basic() {
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	ExtBuilder::default()
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		.with_balances(vec![(
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			AccountId::from(ALICE),
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			2_000 * MOVR + existential_deposit(),
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		)])
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		.build()
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		.execute_with(|| {
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			assert_eq!(
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				Runtime::account_basic(H160::from(ALICE)),
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				EVMAccount {
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					balance: U256::from(2_000 * MOVR),
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					nonce: U256::zero()
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				}
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			);
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		});
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}
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#[test]
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fn ethereum_runtime_rpc_api_gas_price() {
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	ExtBuilder::default().build().execute_with(|| {
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		assert_eq!(
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			Runtime::gas_price(),
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			TransactionPaymentAsGasPrice::min_gas_price().0
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		);
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	});
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}
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#[test]
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fn ethereum_runtime_rpc_api_account_code_at() {
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	let address = H160::from(EVM_CONTRACT);
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	let code: Vec<u8> = vec![1, 2, 3, 4, 5];
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	ExtBuilder::default()
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		.with_evm_accounts({
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			let mut map = BTreeMap::new();
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			map.insert(
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				address,
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				GenesisAccount {
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					balance: U256::zero(),
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					code: code.clone(),
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					nonce: Default::default(),
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					storage: Default::default(),
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				},
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			);
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			map
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		})
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		.build()
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		.execute_with(|| {
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			assert_eq!(Runtime::account_code_at(address), code);
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		});
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}
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#[test]
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fn ethereum_runtime_rpc_api_author() {
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	ExtBuilder::default()
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		.with_collators(vec![(AccountId::from(ALICE), 1_000 * MOVR)])
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		.with_mappings(vec![(
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			NimbusId::from_slice(&ALICE_NIMBUS).unwrap(),
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			AccountId::from(ALICE),
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		)])
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		.with_balances(vec![
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			(AccountId::from(ALICE), 2_000 * MOVR),
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			(AccountId::from(BOB), 1_000 * MOVR),
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		])
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		.with_delegations(vec![(
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			AccountId::from(BOB),
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			AccountId::from(ALICE),
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			500 * MOVR,
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		)])
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		.build()
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		.execute_with(|| {
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			set_parachain_inherent_data();
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			run_to_block(2, Some(NimbusId::from_slice(&ALICE_NIMBUS).unwrap()));
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			assert_eq!(Runtime::author(), H160::from(ALICE));
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		});
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}
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#[test]
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fn ethereum_runtime_rpc_api_storage_at() {
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	let address = H160::from(EVM_CONTRACT);
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	let mut key = [0u8; 32];
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	key[31..32].copy_from_slice(&[6u8][..]);
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	let mut value = [0u8; 32];
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	value[31..32].copy_from_slice(&[7u8][..]);
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	let item = H256::from_slice(&key[..]);
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	let mut storage: BTreeMap<H256, H256> = BTreeMap::new();
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	storage.insert(H256::from_slice(&key[..]), item);
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	ExtBuilder::default()
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		.with_evm_accounts({
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			let mut map = BTreeMap::new();
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			map.insert(
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				address,
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				GenesisAccount {
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					balance: U256::zero(),
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					code: Vec::new(),
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					nonce: Default::default(),
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					storage: storage.clone(),
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				},
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			);
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			map
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		})
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		.build()
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		.execute_with(|| {
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			assert_eq!(Runtime::storage_at(address, U256::from(6)), item);
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		});
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}
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#[test]
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fn ethereum_runtime_rpc_api_call() {
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	ExtBuilder::default()
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		.with_balances(vec![
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			(AccountId::from(ALICE), 2_000 * MOVR),
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			(AccountId::from(BOB), 2_000 * MOVR),
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		])
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		.build()
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		.execute_with(|| {
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			let execution_result = Runtime::call(
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				H160::from(ALICE),     // from
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				H160::from(BOB),       // to
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				Vec::new(),            // data
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				U256::from(1000u64),   // value
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				U256::from(100000u64), // gas_limit
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				None,                  // max_fee_per_gas
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				None,                  // max_priority_fee_per_gas
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				None,                  // nonce
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				false,                 // estimate
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				None,                  // access_list
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			);
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			assert!(execution_result.is_ok());
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		});
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}
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#[test]
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fn ethereum_runtime_rpc_api_create() {
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	ExtBuilder::default()
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		.with_balances(vec![(AccountId::from(ALICE), 2_000 * MOVR)])
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		.build()
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		.execute_with(|| {
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			let execution_result = Runtime::create(
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				H160::from(ALICE),     // from
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				vec![0, 1, 1, 0],      // data
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				U256::zero(),          // value
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				U256::from(100000u64), // gas_limit
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				None,                  // max_fee_per_gas
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				None,                  // max_priority_fee_per_gas
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				None,                  // nonce
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				false,                 // estimate
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				None,                  // access_list
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			);
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			assert!(execution_result.is_ok());
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		});
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}
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#[test]
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fn ethereum_runtime_rpc_api_current_transaction_statuses() {
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	let alith = <Runtime as pallet_evm::Config>::AddressMapping::into_account_id(
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		H160::from_str("f24ff3a9cf04c71dbc94d0b566f7a27b94566cac")
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			.expect("internal H160 is valid; qed"),
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	);
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	ExtBuilder::default()
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		.with_collators(vec![(AccountId::from(ALICE), 1_000 * MOVR)])
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		.with_mappings(vec![(
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			NimbusId::from_slice(&ALICE_NIMBUS).unwrap(),
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			AccountId::from(ALICE),
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		)])
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		.with_balances(vec![
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			(alith, 2_000 * MOVR),
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			(AccountId::from(ALICE), 2_000 * MOVR),
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			(AccountId::from(BOB), 1_000 * MOVR),
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		])
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		.with_delegations(vec![(
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			AccountId::from(BOB),
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			AccountId::from(ALICE),
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			500 * MOVR,
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		)])
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		.build()
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		.execute_with(|| {
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			set_parachain_inherent_data();
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			// set_author(NimbusId::from_slice(&ALICE_NIMBUS));
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			let result =
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				Executive::apply_extrinsic(unchecked_eth_tx(VALID_ETH_TX)).expect("Apply result.");
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			assert_eq!(result, Ok(()));
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			rpc_run_to_block(2);
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			let statuses =
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				Runtime::current_transaction_statuses().expect("Transaction statuses result.");
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			assert_eq!(statuses.len(), 1);
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		});
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}
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#[test]
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fn ethereum_runtime_rpc_api_current_block() {
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	ExtBuilder::default()
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		.with_collators(vec![(AccountId::from(ALICE), 1_000 * MOVR)])
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		.with_mappings(vec![(
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			NimbusId::from_slice(&ALICE_NIMBUS).unwrap(),
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			AccountId::from(ALICE),
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		)])
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		.with_balances(vec![
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			(AccountId::from(ALICE), 2_000 * MOVR),
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			(AccountId::from(BOB), 1_000 * MOVR),
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		])
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		.with_delegations(vec![(
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			AccountId::from(BOB),
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			AccountId::from(ALICE),
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			500 * MOVR,
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		)])
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		.build()
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		.execute_with(|| {
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			set_parachain_inherent_data();
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			// set_author(NimbusId::from_slice(&ALICE_NIMBUS));
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			rpc_run_to_block(2);
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			let block = Runtime::current_block().expect("Block result.");
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			assert_eq!(block.header.number, U256::from(1u8));
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		});
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}
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#[test]
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fn ethereum_runtime_rpc_api_current_receipts() {
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	let alith = <Runtime as pallet_evm::Config>::AddressMapping::into_account_id(
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		H160::from_str("f24ff3a9cf04c71dbc94d0b566f7a27b94566cac")
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			.expect("internal H160 is valid; qed"),
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	);
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	ExtBuilder::default()
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		.with_collators(vec![(AccountId::from(ALICE), 1_000 * MOVR)])
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		.with_mappings(vec![(
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			NimbusId::from_slice(&ALICE_NIMBUS).unwrap(),
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			AccountId::from(ALICE),
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		)])
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		.with_balances(vec![
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			(alith, 2_000 * MOVR),
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			(AccountId::from(ALICE), 2_000 * MOVR),
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			(AccountId::from(BOB), 1_000 * MOVR),
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		])
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		.with_delegations(vec![(
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			AccountId::from(BOB),
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			AccountId::from(ALICE),
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			500 * MOVR,
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		)])
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		.build()
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		.execute_with(|| {
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			set_parachain_inherent_data();
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			// set_author(NimbusId::from_slice(&ALICE_NIMBUS));
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			let result =
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				Executive::apply_extrinsic(unchecked_eth_tx(VALID_ETH_TX)).expect("Apply result.");
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			assert_eq!(result, Ok(()));
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			rpc_run_to_block(2);
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			let receipts = Runtime::current_receipts().expect("Receipts result.");
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			assert_eq!(receipts.len(), 1);
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		});
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}
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#[test]
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fn txpool_runtime_api_extrinsic_filter() {
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	ExtBuilder::default().build().execute_with(|| {
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		let non_eth_uxt = UncheckedExtrinsic::new_bare(
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			pallet_balances::Call::<Runtime>::transfer_allow_death {
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				dest: AccountId::from(BOB),
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				value: 1 * MOVR,
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			}
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			.into(),
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		);
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		let eth_uxt = unchecked_eth_tx(VALID_ETH_TX);
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		let txpool = <Runtime as TxPoolRuntimeApi<moonriver_runtime::Block>>::extrinsic_filter(
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			vec![eth_uxt.clone(), non_eth_uxt.clone()],
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			vec![unchecked_eth_tx(VALID_ETH_TX), non_eth_uxt],
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		);
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		assert_eq!(txpool.ready.len(), 1);
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		assert_eq!(txpool.future.len(), 1);
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	});
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}
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#[test]
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fn can_author_when_selected_is_empty() {
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	ExtBuilder::default()
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		.with_balances(vec![
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			(AccountId::from(ALICE), 20_000_000 * MOVR),
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			(AccountId::from(BOB), 10_000_000 * MOVR),
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		])
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		.with_collators(vec![(AccountId::from(ALICE), 2_000_000 * MOVR)])
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		.with_mappings(vec![(
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			NimbusId::from_slice(&ALICE_NIMBUS).unwrap(),
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			AccountId::from(ALICE),
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		)])
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		.build()
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		.execute_with(|| {
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			set_parachain_inherent_data();
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			run_to_block(2, Some(NimbusId::from_slice(&ALICE_NIMBUS).unwrap()));
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			assert_eq!(ParachainStaking::candidate_pool().0.len(), 1);
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			let slot_number = 0;
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			let parent = Header {
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				digest: Default::default(),
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				extrinsics_root: Default::default(),
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				number: Default::default(),
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				parent_hash: Default::default(),
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				state_root: Default::default(),
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			};
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			// Base case: ALICE can author blocks when she is the only candidate
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			let can_author_block = Runtime::can_author(
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				NimbusId::from_slice(&ALICE_NIMBUS).unwrap(),
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				slot_number,
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				&parent,
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			);
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			assert!(can_author_block);
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			// Remove ALICE from candidate pool, leaving the candidate_pool empty
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			assert_ok!(ParachainStaking::go_offline(origin_of(AccountId::from(
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				ALICE
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			))));
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			// Need to fast forward to right before the next session, which is when selected candidates
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			// will be updated. We want to test the creation of the first block of the next session.
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			run_to_block(1799, Some(NimbusId::from_slice(&ALICE_NIMBUS).unwrap()));
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			assert_eq!(ParachainStaking::candidate_pool().0.len(), 0);
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			let slot_number = 0;
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			let parent = Header {
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				digest: Default::default(),
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				extrinsics_root: Default::default(),
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				number: 1799,
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				parent_hash: Default::default(),
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				state_root: Default::default(),
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			};
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			let can_author_block = Runtime::can_author(
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				NimbusId::from_slice(&ALICE_NIMBUS).unwrap(),
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				slot_number,
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				&parent,
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			);
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			assert!(can_author_block);
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			// Check that it works as expected after session update
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			run_to_block(1800, Some(NimbusId::from_slice(&ALICE_NIMBUS).unwrap()));
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			assert_eq!(ParachainStaking::candidate_pool().0.len(), 0);
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			let slot_number = 0;
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			let parent = Header {
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				digest: Default::default(),
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				extrinsics_root: Default::default(),
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				number: 1800,
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				parent_hash: Default::default(),
390
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				state_root: Default::default(),
391
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			};
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			let can_author_block = Runtime::can_author(
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				NimbusId::from_slice(&ALICE_NIMBUS).unwrap(),
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				slot_number,
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				&parent,
397
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			);
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399
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			assert!(can_author_block);
400
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		});
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}