// SPDX-License-Identifier: MIT
pragma solidity ^0.8.20;

import "forge-std/Test.sol";
import "../../contracts/vault/Vault.sol";
import "../../contracts/vault/Ledger.sol";
import "../../contracts/vault/RegulatedEntityRegistry.sol";
import "../../contracts/vault/XAUOracle.sol";
import "../../contracts/vault/RateAccrual.sol";
import "../../contracts/vault/adapters/CollateralAdapter.sol";
import "../../contracts/vault/adapters/eMoneyJoin.sol";
import "../../contracts/vault/tokens/DepositToken.sol";
import "../../contracts/vault/tokens/DebtToken.sol";
import "../../contracts/emoney/eMoneyToken.sol";
import "../../contracts/oracle/Aggregator.sol";

contract VaultTest is Test {
    Vault public vault;
    Ledger public ledger;
    RegulatedEntityRegistry public entityRegistry;
    XAUOracle public xauOracle;
    RateAccrual public rateAccrual;
    CollateralAdapter public collateralAdapter;
    eMoneyJoin public eMoneyJoinAdapter;
    DepositToken public depositToken;
    DebtToken public debtToken;
    eMoneyToken public eMoneyTokenInstance;

    address public admin = address(0x1);
    address public owner = address(0x2);
    address public entity = address(0x3);
    address public user = address(0x4);
    address public eth = address(0);

    function setUp() public {
        vm.startPrank(admin);

        // Deploy entity registry
        entityRegistry = new RegulatedEntityRegistry(admin);
        entityRegistry.registerEntity(entity, keccak256("US"), new address[](0));
        entityRegistry.addAuthorizedWallet(entity, owner);

        // Deploy oracle infrastructure
        Aggregator ethFeed = new Aggregator("ETH/XAU", admin, 3600, 50);
        ethFeed.addTransmitter(admin);
        ethFeed.updateAnswer(0.05e18); // 1 ETH = 0.05 oz XAU

        xauOracle = new XAUOracle(admin);
        xauOracle.addPriceFeed(address(ethFeed), 10000);
        xauOracle.updatePrice();

        rateAccrual = new RateAccrual(admin);
        rateAccrual.setInterestRate(address(0), 500); // 5%

        // Deploy ledger
        ledger = new Ledger(admin, address(xauOracle), address(rateAccrual));
        ledger.setRiskParameters(eth, 1_000_000e18, 11000, 50000);

        // Deploy adapters
        collateralAdapter = new CollateralAdapter(admin, address(ledger));
        collateralAdapter.approveAsset(eth);
        ledger.grantVaultRole(address(collateralAdapter));

        eMoneyJoinAdapter = new eMoneyJoin(admin);
        ledger.grantVaultRole(address(eMoneyJoinAdapter));

        // Deploy eMoney token (mock)
        // Note: Would need full eMoney setup with PolicyManager, etc.
        // For now, create simplified version

        // Deploy vault
        vault = new Vault(
            owner,
            entity,
            address(ledger),
            address(entityRegistry),
            address(collateralAdapter),
            address(eMoneyJoinAdapter)
        );

        ledger.grantVaultRole(address(vault));

        vm.stopPrank();
    }

    function test_Deposit() public {
        vm.deal(owner, 10 ether);

        vm.startPrank(owner);
        vault.deposit{value: 5 ether}(eth, 5 ether);
        vm.stopPrank();

        assertEq(ledger.collateral(address(vault), eth), 5 ether);
    }

    function test_Deposit_RevertIfNotAuthorized() public {
        address unauthorized = address(0x999);

        vm.deal(unauthorized, 10 ether);

        vm.prank(unauthorized);
        vm.expectRevert("Vault: not authorized");
        vault.deposit{value: 5 ether}(eth, 5 ether);
    }

    function test_Withdraw() public {
        vm.deal(owner, 10 ether);

        vm.startPrank(owner);
        vault.deposit{value: 10 ether}(eth, 10 ether);
        vault.withdraw(eth, 5 ether);
        vm.stopPrank();

        assertEq(ledger.collateral(address(vault), eth), 5 ether);
    }

    function test_GetHealth() public {
        vm.deal(owner, 10 ether);

        vm.prank(owner);
        vault.deposit{value: 10 ether}(eth, 10 ether);

        (uint256 healthRatio, uint256 collateralValue, uint256 debtValue) = vault.getHealth();

        assertGt(collateralValue, 0);
        assertEq(debtValue, 0);
        assertEq(healthRatio, type(uint256).max);
    }
}