ERC-7776: 透明财务报表

// SPDX-License-Identifier: CC0-1.0
pragma solidity 0.8.27;

interface IERC20 {
    function name() external view returns (string memory);
    function symbol() external view returns (string memory);
}

contract TransparentFinancialStatements {

    address public stablecoin;

    struct RevenueStruct {
        uint256 grossRevenue;
        uint256 optionalAdditionalRevenueDetail1;
        uint256 optionalAdditionalRevenueDetailN;
    }

    struct COGSStruct {
        uint256 totalCOGS;
        uint256 optionalAdditionalCOGSDetail1;
        uint256 optionalAdditionalCOGSDetailN;
    }

    struct OperatingExpensesStruct {
        uint256 totalOperatingExpenses;
        uint256 optionalAdditionalExpenseDetail1;
        uint256 optionalAdditionalExpenseDetailN;
    }

    struct OperatingIncomeStruct {
        uint256 totalOperatingIncome;
        uint256 optionalAdditionalIncomeDetail1;
        uint256 optionalAdditionalIncomeDetailN;
    }

    struct EBITDAstruct {
        uint256 totalEBITDA;
        uint256 optionalAdditionalEBITDADetail1;
        uint256 optionalAdditionalEBITDADetailN;
    }

    struct OtherIncomeExpensesStruct {
        uint256 totalOtherIncome;
        uint256 totalOtherExpenses;
        uint256 totalOtherIncomeDetail1;
        uint256 totalOtherExpensesDetail1;
        uint256 totalOtherIncomeDetailN;
        uint256 totalOtherExpensesDetailN;
    }

    struct NetIncomeStruct {
        uint256 totalNetIncome;
        uint256 optionalAdditionalNetIncomeDetail1;
        uint256 optionalAdditionalNetIncomeDetailN;
    }

    struct EPSstruct {
        uint256 basicEPS;
        uint256 dilutedEPS;
        uint256 EPSDetail1;
        uint256 EPSDetailN;
    }

    struct FullFinancialsStruct {
        RevenueStruct revenue;
        COGSStruct cogs;
        OperatingExpensesStruct operatingExpenses;
        OperatingIncomeStruct operatingIncome;
        EBITDAstruct ebitda;
        OtherIncomeExpensesStruct otherIncomeExpenses;
        NetIncomeStruct netIncome;
        EPSstruct eps;
    }

    constructor(address _stablecoin) {
        stablecoin = _stablecoin;
    }

    function currency() public view returns (address) {
        return stablecoin;
    }

    function revenue(uint256 startTimestamp, uint256 endTimestamp) 
        public 
        view 
        returns (RevenueStruct memory) 
    {
        require(startTimestamp <= endTimestamp, "Invalid timestamps");
        // Logic to calculate and return revenue details
        // 用于计算和返回收入明细的逻辑
        return RevenueStruct(1000, 500, 100); // Example values
        // 示例值
    }

    function cogs(uint256 startTimestamp, uint256 endTimestamp) 
        public 
        view 
        returns (COGSStruct memory) 
    {
        require(startTimestamp <= endTimestamp, "Invalid timestamps");
        // Logic to calculate and return COGS details
        // 用于计算和返回 COGS 明细的逻辑
        return COGSStruct(400, 150, 50); // Example values
        // 示例值
    }

    function operatingExpenses(uint256 startTimestamp, uint256 endTimestamp) 
        public 
        view 
        returns (OperatingExpensesStruct memory) 
    {
        require(startTimestamp <= endTimestamp, "Invalid timestamps");
        // Logic to calculate and return operating expenses details
        // 用于计算和返回运营费用明细的逻辑
        return OperatingExpensesStruct(300, 100, 50); // Example values
        // 示例值
    }

    function operatingIncome(uint256 startTimestamp, uint256 endTimestamp) 
        public 
        view 
        returns (OperatingIncomeStruct memory) 
    {
        require(startTimestamp <= endTimestamp, "Invalid timestamps");
        // Logic to calculate and return operating income details
        // 用于计算和返回营业收入明细的逻辑
        return OperatingIncomeStruct(300, 100, 50); // Example values
        // 示例值
    }

    function ebitda(uint256 startTimestamp, uint256 endTimestamp) 
        public 
        view 
        returns (EBITDAstruct memory) 
    {
        require(startTimestamp <= endTimestamp, "Invalid timestamps");
        // Logic to calculate and return EBITDA details
        // 用于计算和返回 EBITDA 明细的逻辑
        return EBITDAstruct(700, 200, 100); // Example values
        // 示例值
    }

    function otherIncomeExpenses(uint256 startTimestamp, uint256 endTimestamp) 
        public 
        view 
        returns (OtherIncomeExpensesStruct memory) 
    {
        require(startTimestamp <= endTimestamp, "Invalid timestamps");
        // Logic to calculate and return other income/expenses details
        // 用于计算和返回其他收入/费用明细的逻辑
        return OtherIncomeExpensesStruct(100, 50, 20, 10, 30, 20); // Example values
        // 示例值
    }

    function netIncome(uint256 startTimestamp, uint256 endTimestamp) 
        public 
        view 
        returns (NetIncomeStruct memory) 
    {
        require(startTimestamp <= endTimestamp, "Invalid timestamps");
        // Logic to calculate and return net income details
        // 用于计算和返回净收入明细的逻辑
        return NetIncomeStruct(600, 200, 100); // Example values
        // 示例值
    }

    function earningsPerShare(uint256 startTimestamp, uint256 endTimestamp) 
        public 
        view 
        returns (EPSstruct memory) 
    {
        require(startTimestamp <= endTimestamp, "Invalid timestamps");
        // Logic to calculate and return EPS details
        // 用于计算和返回 EPS 明细的逻辑
        return EPSstruct(10, 8, 2, 1); // Example values
        // 示例值
    }

    function fullFinancialReport(uint256 startTimestamp, uint256 endTimestamp) 
        public 
        view 
        returns (FullFinancialsStruct memory) 
    {
        require(startTimestamp <= endTimestamp, "Invalid timestamps");
        // Logic to calculate and return all financial details
        // 用于计算和返回所有财务明细的逻辑
        return FullFinancialsStruct(
            revenue(startTimestamp, endTimestamp),
            cogs(startTimestamp, endTimestamp),
            operatingExpenses(startTimestamp, endTimestamp),
            operatingIncome(startTimestamp, endTimestamp),
            ebitda(startTimestamp, endTimestamp),
            otherIncomeExpenses(startTimestamp, endTimestamp),
            netIncome(startTimestamp, endTimestamp),
            earningsPerShare(startTimestamp, endTimestamp)
        );
    }
}