jquants-api-client 0.1.0

//! Financial Statements Data API.

use serde::{Deserialize, Serialize};

use crate::{AccountingPeriod, TypeOfDocument};

use super::{
    shared::{
        deserialize_utils::empty_string_or_null_as_none,
        traits::{
            builder::JQuantsBuilder,
            pagination::{HasPaginationKey, MergePage, Paginatable},
        },
    },
    JQuantsApiClient, JQuantsPlanClient,
};

/// Builder for Financial Statements Data API.
#[derive(Clone, Serialize)]
pub struct FinancialStatementsBuilder {
    #[serde(skip)]
    client: JQuantsApiClient,

    /// Issue code (e.g. "27890" or "2789")
    #[serde(skip_serializing_if = "Option::is_none")]
    code: Option<String>,
    /// Disclosure date (e.g. "20210901" or "2021-09-01")
    #[serde(skip_serializing_if = "Option::is_none")]
    date: Option<String>,

    /// Pagination key.
    #[serde(skip_serializing_if = "Option::is_none")]
    pagination_key: Option<String>,
}

impl JQuantsBuilder<FinancialStatementsResponse> for FinancialStatementsBuilder {
    async fn send(self) -> Result<FinancialStatementsResponse, crate::JQuantsError> {
        self.send_ref().await
    }

    async fn send_ref(&self) -> Result<FinancialStatementsResponse, crate::JQuantsError> {
        self.client.inner.get("fins/statements", self).await
    }
}

impl Paginatable<FinancialStatementsResponse> for FinancialStatementsBuilder {
    fn pagination_key(mut self, pagination_key: impl Into<String>) -> Self {
        self.pagination_key = Some(pagination_key.into());
        self
    }
}

impl FinancialStatementsBuilder {
    /// Create a new builder.
    pub(crate) fn new(client: JQuantsApiClient) -> Self {
        Self {
            client,
            code: None,
            date: None,
            pagination_key: None,
        }
    }

    /// Set issue code (e.g. "27890" or "2789")
    pub fn code(mut self, code: impl Into<String>) -> Self {
        self.code = Some(code.into());
        self
    }

    /// Set disclosure date (e.g. "20210901" or "2021-09-01")
    pub fn date(mut self, date: impl Into<String>) -> Self {
        self.date = Some(date.into());
        self
    }
}

/// Trait for Financial Statements Data API.
pub trait FinancialStatementsApi: JQuantsPlanClient {
    /// Get API builder for Financial Statements Data.
    ///
    /// Use [Financial Statements Data (/fins/statements) API](https://jpx.gitbook.io/j-quants-en/api-reference/statements)
    fn get_financial_statements(&self) -> FinancialStatementsBuilder {
        FinancialStatementsBuilder::new(self.get_api_client().clone())
    }
}

/// Financial Statements Data response.
///
/// See: [API Reference](https://jpx.gitbook.io/j-quants-en/api-reference/statements)
#[derive(Debug, Clone, PartialEq, Deserialize)]
pub struct FinancialStatementsResponse {
    /// List of financial statements
    pub statements: Vec<FinancialStatementItem>,
    /// Pagination key for fetching next set of data
    pub pagination_key: Option<String>,
}

impl HasPaginationKey for FinancialStatementsResponse {
    fn get_pagination_key(&self) -> Option<&str> {
        self.pagination_key.as_deref()
    }
}

impl MergePage for FinancialStatementsResponse {
    fn merge_page(
        page: Result<Vec<Self>, crate::JQuantsError>,
    ) -> Result<Self, crate::JQuantsError> {
        let mut page = page?;
        let mut merged = page.pop().unwrap();
        for p in page {
            merged.statements.extend(p.statements);
        }
        merged.pagination_key = None;

        Ok(merged)
    }
}

/// Represents a single financial statement item.
#[derive(Debug, Clone, PartialEq, Deserialize)]
pub struct FinancialStatementItem {
    /// Disclosed Date (YYYY-MM-DD)
    #[serde(rename = "DisclosedDate")]
    pub disclosed_date: String,

    /// Disclosed Time (HH:MM:SS)
    #[serde(rename = "DisclosedTime")]
    pub disclosed_time: String,

    /// Issue Code (5-character)
    #[serde(rename = "LocalCode")]
    pub local_code: String,

    /// Disclosure Number
    #[serde(rename = "DisclosureNumber")]
    pub disclosure_number: String,

    /// Type of Document
    #[serde(rename = "TypeOfDocument")]
    pub type_of_document: TypeOfDocument,

    /// Type of Current Period (e.g., "3Q")
    #[serde(rename = "TypeOfCurrentPeriod")]
    pub type_of_current_period: AccountingPeriod,

    /// Start date of current accounting period
    #[serde(rename = "CurrentPeriodStartDate")]
    pub current_period_start_date: String,

    /// End date of current accounting period
    #[serde(rename = "CurrentPeriodEndDate")]
    pub current_period_end_date: String,

    /// Start date of current fiscal year
    #[serde(rename = "CurrentFiscalYearStartDate")]
    pub current_fiscal_year_start_date: String,

    /// End date of current fiscal year
    #[serde(rename = "CurrentFiscalYearEndDate")]
    pub current_fiscal_year_end_date: String,

    /// Start date of next fiscal year
    ///
    /// Blank is set if disclosure information for the following fiscal year is not set.
    #[serde(
        rename = "NextFiscalYearStartDate",
        deserialize_with = "empty_string_or_null_as_none"
    )]
    pub next_fiscal_year_start_date: Option<String>,

    /// End date of next fiscal year
    ///
    /// Blank is set if disclosure information for the following fiscal year is not set.
    #[serde(
        rename = "NextFiscalYearEndDate",
        deserialize_with = "empty_string_or_null_as_none"
    )]
    pub next_fiscal_year_end_date: Option<String>,

    /// Net Sales
    #[serde(rename = "NetSales")]
    pub net_sales: String,

    /// Operating Profit
    #[serde(rename = "OperatingProfit")]
    pub operating_profit: String,

    /// Ordinary Profit
    #[serde(rename = "OrdinaryProfit")]
    pub ordinary_profit: String,

    /// Profit
    #[serde(rename = "Profit")]
    pub profit: String,

    /// Earnings per share
    #[serde(rename = "EarningsPerShare")]
    pub earnings_per_share: String,

    /// Diluted Earnings per share
    #[serde(rename = "DilutedEarningsPerShare")]
    pub diluted_earnings_per_share: String,

    /// Total Assets
    #[serde(rename = "TotalAssets")]
    pub total_assets: String,

    /// Equity
    #[serde(rename = "Equity")]
    pub equity: String,

    /// Equity to Asset Ratio
    #[serde(rename = "EquityToAssetRatio")]
    pub equity_to_asset_ratio: String,

    /// Book Value per Share
    #[serde(rename = "BookValuePerShare")]
    pub book_value_per_share: String,

    /// Cash Flows from Operating Activities
    #[serde(rename = "CashFlowsFromOperatingActivities")]
    pub cash_flows_from_operating_activities: String,

    /// Cash Flows from Investing Activities
    #[serde(rename = "CashFlowsFromInvestingActivities")]
    pub cash_flows_from_investing_activities: String,

    /// Cash Flows from Financing Activities
    #[serde(rename = "CashFlowsFromFinancingActivities")]
    pub cash_flows_from_financing_activities: String,

    /// Cash and Equivalents
    #[serde(rename = "CashAndEquivalents")]
    pub cash_and_equivalents: String,

    /// Result Dividend Per Share 1st Quarter
    #[serde(rename = "ResultDividendPerShare1stQuarter")]
    pub result_dividend_per_share_1st_quarter: String,

    /// Result Dividend Per Share 2nd Quarter
    #[serde(rename = "ResultDividendPerShare2ndQuarter")]
    pub result_dividend_per_share_2nd_quarter: String,

    /// Result Dividend Per Share 3rd Quarter
    #[serde(rename = "ResultDividendPerShare3rdQuarter")]
    pub result_dividend_per_share_3rd_quarter: String,

    /// Result Dividend Per Share Fiscal Year End
    #[serde(rename = "ResultDividendPerShareFiscalYearEnd")]
    pub result_dividend_per_share_fiscal_year_end: String,

    /// Result Dividend Per Share Annual
    #[serde(rename = "ResultDividendPerShareAnnual")]
    pub result_dividend_per_share_annual: String,

    /// Distributions Per Unit (REIT)
    #[serde(rename = "DistributionsPerUnit(REIT)")]
    pub distributions_per_unit_reit: String,

    /// Result Total Dividend Paid Annual
    #[serde(rename = "ResultTotalDividendPaidAnnual")]
    pub result_total_dividend_paid_annual: String,

    /// Result Payout Ratio Annual
    #[serde(rename = "ResultPayoutRatioAnnual")]
    pub result_payout_ratio_annual: String,

    /// Forecast Dividend Per Share 1st Quarter
    #[serde(rename = "ForecastDividendPerShare1stQuarter")]
    pub forecast_dividend_per_share_1st_quarter: String,

    /// Forecast Dividend Per Share 2nd Quarter
    #[serde(rename = "ForecastDividendPerShare2ndQuarter")]
    pub forecast_dividend_per_share_2nd_quarter: String,

    /// Forecast Dividend Per Share 3rd Quarter
    #[serde(rename = "ForecastDividendPerShare3rdQuarter")]
    pub forecast_dividend_per_share_3rd_quarter: String,

    /// Forecast Dividend Per Share Fiscal Year End
    #[serde(rename = "ForecastDividendPerShareFiscalYearEnd")]
    pub forecast_dividend_per_share_fiscal_year_end: String,

    /// Forecast Dividend Per Share Annual
    #[serde(rename = "ForecastDividendPerShareAnnual")]
    pub forecast_dividend_per_share_annual: String,

    /// Forecast Distributions Per Unit (REIT)
    #[serde(rename = "ForecastDistributionsPerUnit(REIT)")]
    pub forecast_distributions_per_unit_reit: String,

    /// Forecast Total Dividend Paid Annual
    #[serde(rename = "ForecastTotalDividendPaidAnnual")]
    pub forecast_total_dividend_paid_annual: String,

    /// Forecast Payout Ratio Annual
    #[serde(rename = "ForecastPayoutRatioAnnual")]
    pub forecast_payout_ratio_annual: String,

    /// Next Year Forecast Dividend Per Share 1st Quarter
    #[serde(rename = "NextYearForecastDividendPerShare1stQuarter")]
    pub next_year_forecast_dividend_per_share_1st_quarter: String,

    /// Next Year Forecast Dividend Per Share 2nd Quarter
    #[serde(rename = "NextYearForecastDividendPerShare2ndQuarter")]
    pub next_year_forecast_dividend_per_share_2nd_quarter: String,

    /// Next Year Forecast Dividend Per Share 3rd Quarter
    #[serde(rename = "NextYearForecastDividendPerShare3rdQuarter")]
    pub next_year_forecast_dividend_per_share_3rd_quarter: String,

    /// Next Year Forecast Dividend Per Share Fiscal Year End
    #[serde(rename = "NextYearForecastDividendPerShareFiscalYearEnd")]
    pub next_year_forecast_dividend_per_share_fiscal_year_end: String,

    /// Next Year Forecast Dividend Per Share Annual
    #[serde(rename = "NextYearForecastDividendPerShareAnnual")]
    pub next_year_forecast_dividend_per_share_annual: String,

    /// Next Year Forecast Distributions Per Unit (REIT)
    #[serde(rename = "NextYearForecastDistributionsPerUnit(REIT)")]
    pub next_year_forecast_distributions_per_unit_reit: String,

    /// Next Year Forecast Payout Ratio Annual
    #[serde(rename = "NextYearForecastPayoutRatioAnnual")]
    pub next_year_forecast_payout_ratio_annual: String,

    /// Forecast Net Sales 2nd Quarter
    #[serde(rename = "ForecastNetSales2ndQuarter")]
    pub forecast_net_sales_2nd_quarter: String,

    /// Forecast Operating Profit 2nd Quarter
    #[serde(rename = "ForecastOperatingProfit2ndQuarter")]
    pub forecast_operating_profit_2nd_quarter: String,

    /// Forecast Ordinary Profit 2nd Quarter
    #[serde(rename = "ForecastOrdinaryProfit2ndQuarter")]
    pub forecast_ordinary_profit_2nd_quarter: String,

    /// Forecast Profit 2nd Quarter
    #[serde(rename = "ForecastProfit2ndQuarter")]
    pub forecast_profit_2nd_quarter: String,

    /// Forecast Earnings Per Share 2nd Quarter
    #[serde(rename = "ForecastEarningsPerShare2ndQuarter")]
    pub forecast_earnings_per_share_2nd_quarter: String,

    /// Next Year Forecast Net Sales 2nd Quarter
    #[serde(rename = "NextYearForecastNetSales2ndQuarter")]
    pub next_year_forecast_net_sales_2nd_quarter: String,

    /// Next Year Forecast Operating Profit 2nd Quarter
    #[serde(rename = "NextYearForecastOperatingProfit2ndQuarter")]
    pub next_year_forecast_operating_profit_2nd_quarter: String,

    /// Next Year Forecast Ordinary Profit 2nd Quarter
    #[serde(rename = "NextYearForecastOrdinaryProfit2ndQuarter")]
    pub next_year_forecast_ordinary_profit_2nd_quarter: String,

    /// Next Year Forecast Profit 2nd Quarter
    #[serde(rename = "NextYearForecastProfit2ndQuarter")]
    pub next_year_forecast_profit_2nd_quarter: String,

    /// Next Year Forecast Earnings Per Share 2nd Quarter
    #[serde(rename = "NextYearForecastEarningsPerShare2ndQuarter")]
    pub next_year_forecast_earnings_per_share_2nd_quarter: String,

    /// Forecast Net Sales at Fiscal Year End
    #[serde(rename = "ForecastNetSales")]
    pub forecast_net_sales: String,

    /// Forecast Operating Profit at Fiscal Year End
    #[serde(rename = "ForecastOperatingProfit")]
    pub forecast_operating_profit: String,

    /// Forecast Ordinary Profit at Fiscal Year End
    #[serde(rename = "ForecastOrdinaryProfit")]
    pub forecast_ordinary_profit: String,

    /// Forecast Profit at Fiscal Year End
    #[serde(rename = "ForecastProfit")]
    pub forecast_profit: String,

    /// Forecast Earnings Per Share at Fiscal Year End
    #[serde(rename = "ForecastEarningsPerShare")]
    pub forecast_earnings_per_share: String,

    /// Next Year Forecast Net Sales at Fiscal Year End
    #[serde(rename = "NextYearForecastNetSales")]
    pub next_year_forecast_net_sales: String,

    /// Next Year Forecast Operating Profit at Fiscal Year End
    #[serde(rename = "NextYearForecastOperatingProfit")]
    pub next_year_forecast_operating_profit: String,

    /// Next Year Forecast Ordinary Profit at Fiscal Year End
    #[serde(rename = "NextYearForecastOrdinaryProfit")]
    pub next_year_forecast_ordinary_profit: String,

    /// Next Year Forecast Profit at Fiscal Year End
    #[serde(rename = "NextYearForecastProfit")]
    pub next_year_forecast_profit: String,

    /// Next Year Forecast Earnings Per Share at Fiscal Year End
    #[serde(rename = "NextYearForecastEarningsPerShare")]
    pub next_year_forecast_earnings_per_share: String,

    /// Material Changes in Subsidiaries at Fiscal Year End
    #[serde(rename = "MaterialChangesInSubsidiaries")]
    pub material_changes_in_subsidiaries: String,

    /// Significant Changes In The Scope Of Consolidation
    #[serde(
        rename = "SignificantChangesInTheScopeOfConsolidation",
        deserialize_with = "empty_string_or_null_as_none"
    )]
    pub significant_changes_in_the_scope_of_consolidation: Option<String>,

    /// Changes Based on Revisions of Accounting Standard
    #[serde(rename = "ChangesBasedOnRevisionsOfAccountingStandard")]
    pub changes_based_on_revisions_of_accounting_standard: String,

    /// Changes Other Than Ones Based on Revisions of Accounting Standard
    #[serde(rename = "ChangesOtherThanOnesBasedOnRevisionsOfAccountingStandard")]
    pub changes_other_than_based_on_revisions_of_accounting_standard: String,

    /// Changes in Accounting Estimates
    #[serde(rename = "ChangesInAccountingEstimates")]
    pub changes_in_accounting_estimates: String,

    /// Retrospective Restatement
    #[serde(rename = "RetrospectiveRestatement")]
    pub retrospective_restatement: String,

    /// Number of Issued and Outstanding Shares at the End of Fiscal Year Including Treasury Stock
    #[serde(
        rename = "NumberOfIssuedAndOutstandingSharesAtTheEndOfFiscalYearIncludingTreasuryStock"
    )]
    pub number_of_issued_and_outstanding_shares_at_the_end_of_fiscal_year_including_treasury_stock:
        String,

    /// Number of Treasury Stock at the End of Fiscal Year
    #[serde(rename = "NumberOfTreasuryStockAtTheEndOfFiscalYear")]
    pub number_of_treasury_stock_at_the_end_of_fiscal_year: String,

    /// Average Number of Shares
    #[serde(rename = "AverageNumberOfShares")]
    pub average_number_of_shares: String,

    /// Non-Consolidated Net Sales at Fiscal Year End
    #[serde(rename = "NonConsolidatedNetSales")]
    pub non_consolidated_net_sales: String,

    /// Non-Consolidated Operating Profit at Fiscal Year End
    #[serde(rename = "NonConsolidatedOperatingProfit")]
    pub non_consolidated_operating_profit: String,

    /// Non-Consolidated Ordinary Profit at Fiscal Year End
    #[serde(rename = "NonConsolidatedOrdinaryProfit")]
    pub non_consolidated_ordinary_profit: String,

    /// Non-Consolidated Profit at Fiscal Year End
    #[serde(rename = "NonConsolidatedProfit")]
    pub non_consolidated_profit: String,

    /// Non-Consolidated Earnings Per Share at Fiscal Year End
    #[serde(rename = "NonConsolidatedEarningsPerShare")]
    pub non_consolidated_earnings_per_share: String,

    /// Non-Consolidated Total Assets at Fiscal Year End
    #[serde(rename = "NonConsolidatedTotalAssets")]
    pub non_consolidated_total_assets: String,

    /// Non-Consolidated Equity at Fiscal Year End
    #[serde(rename = "NonConsolidatedEquity")]
    pub non_consolidated_equity: String,

    /// Non-Consolidated Equity to Asset Ratio at Fiscal Year End
    #[serde(rename = "NonConsolidatedEquityToAssetRatio")]
    pub non_consolidated_equity_to_asset_ratio: String,

    /// Non-Consolidated Book Value Per Share at Fiscal Year End
    #[serde(rename = "NonConsolidatedBookValuePerShare")]
    pub non_consolidated_book_value_per_share: String,

    /// Forecast Non-Consolidated Net Sales 2nd Quarter
    #[serde(rename = "ForecastNonConsolidatedNetSales2ndQuarter")]
    pub forecast_non_consolidated_net_sales_2nd_quarter: String,

    /// Forecast Non-Consolidated Operating Profit 2nd Quarter
    #[serde(rename = "ForecastNonConsolidatedOperatingProfit2ndQuarter")]
    pub forecast_non_consolidated_operating_profit_2nd_quarter: String,

    /// Forecast Non-Consolidated Ordinary Profit 2nd Quarter
    #[serde(rename = "ForecastNonConsolidatedOrdinaryProfit2ndQuarter")]
    pub forecast_non_consolidated_ordinary_profit_2nd_quarter: String,

    /// Forecast Non-Consolidated Profit 2nd Quarter
    #[serde(rename = "ForecastNonConsolidatedProfit2ndQuarter")]
    pub forecast_non_consolidated_profit_2nd_quarter: String,

    /// Forecast Non-Consolidated Earnings Per Share 2nd Quarter
    #[serde(rename = "ForecastNonConsolidatedEarningsPerShare2ndQuarter")]
    pub forecast_non_consolidated_earnings_per_share_2nd_quarter: String,

    /// Next Year Forecast Non-Consolidated Net Sales 2nd Quarter
    #[serde(rename = "NextYearForecastNonConsolidatedNetSales2ndQuarter")]
    pub next_year_forecast_non_consolidated_net_sales_2nd_quarter: String,

    /// Next Year Forecast Non-Consolidated Operating Profit 2nd Quarter
    #[serde(rename = "NextYearForecastNonConsolidatedOperatingProfit2ndQuarter")]
    pub next_year_forecast_non_consolidated_operating_profit_2nd_quarter: String,

    /// Next Year Forecast Non-Consolidated Ordinary Profit 2nd Quarter
    #[serde(rename = "NextYearForecastNonConsolidatedOrdinaryProfit2ndQuarter")]
    pub next_year_forecast_non_consolidated_ordinary_profit_2nd_quarter: String,

    /// Next Year Forecast Non-Consolidated Profit 2nd Quarter
    #[serde(rename = "NextYearForecastNonConsolidatedProfit2ndQuarter")]
    pub next_year_forecast_non_consolidated_profit_2nd_quarter: String,

    /// Next Year Forecast Non-Consolidated Earnings Per Share 2nd Quarter
    #[serde(rename = "NextYearForecastNonConsolidatedEarningsPerShare2ndQuarter")]
    pub next_year_forecast_non_consolidated_earnings_per_share_2nd_quarter: String,

    /// Forecast Non-Consolidated Net Sales at Fiscal Year End
    #[serde(rename = "ForecastNonConsolidatedNetSales")]
    pub forecast_non_consolidated_net_sales: String,

    /// Forecast Non-Consolidated Operating Profit at Fiscal Year End
    #[serde(rename = "ForecastNonConsolidatedOperatingProfit")]
    pub forecast_non_consolidated_operating_profit: String,

    /// Forecast Non-Consolidated Ordinary Profit at Fiscal Year End
    #[serde(rename = "ForecastNonConsolidatedOrdinaryProfit")]
    pub forecast_non_consolidated_ordinary_profit: String,

    /// Forecast Non-Consolidated Profit at Fiscal Year End
    #[serde(rename = "ForecastNonConsolidatedProfit")]
    pub forecast_non_consolidated_profit: String,

    /// Forecast Non-Consolidated Earnings Per Share at Fiscal Year End
    #[serde(rename = "ForecastNonConsolidatedEarningsPerShare")]
    pub forecast_non_consolidated_earnings_per_share: String,

    /// Next Year Forecast Non-Consolidated Net Sales at Fiscal Year End
    #[serde(rename = "NextYearForecastNonConsolidatedNetSales")]
    pub next_year_forecast_non_consolidated_net_sales: String,

    /// Next Year Forecast Non-Consolidated Operating Profit at Fiscal Year End
    #[serde(rename = "NextYearForecastNonConsolidatedOperatingProfit")]
    pub next_year_forecast_non_consolidated_operating_profit: String,

    /// Next Year Forecast Non-Consolidated Ordinary Profit at Fiscal Year End
    #[serde(rename = "NextYearForecastNonConsolidatedOrdinaryProfit")]
    pub next_year_forecast_non_consolidated_ordinary_profit: String,

    /// Next Year Forecast Non-Consolidated Profit at Fiscal Year End
    #[serde(rename = "NextYearForecastNonConsolidatedProfit")]
    pub next_year_forecast_non_consolidated_profit: String,

    /// Next Year Forecast Non-Consolidated Earnings Per Share at Fiscal Year End
    #[serde(rename = "NextYearForecastNonConsolidatedEarningsPerShare")]
    pub next_year_forecast_non_consolidated_earnings_per_share: String,
}

#[cfg(test)]
mod tests {
    use super::*;

    #[test]
    fn test_deserialize_financial_statements_response() {
        let json_data = r#"
        {
            "statements": [
                {
                    "DisclosedDate": "2023-01-30",
                    "DisclosedTime": "12:00:00",
                    "LocalCode": "86970",
                    "DisclosureNumber": "20230127594871",
                    "TypeOfDocument": "3QFinancialStatements_Consolidated_IFRS",
                    "TypeOfCurrentPeriod": "3Q",
                    "CurrentPeriodStartDate": "2022-04-01",
                    "CurrentPeriodEndDate": "2022-12-31",
                    "CurrentFiscalYearStartDate": "2022-04-01",
                    "CurrentFiscalYearEndDate": "2023-03-31",
                    "NextFiscalYearStartDate": "",
                    "NextFiscalYearEndDate": "",
                    "NetSales": "100529000000",
                    "OperatingProfit": "51765000000",
                    "OrdinaryProfit": "",
                    "Profit": "35175000000",
                    "EarningsPerShare": "66.76",
                    "DilutedEarningsPerShare": "",
                    "TotalAssets": "79205861000000",
                    "Equity": "320021000000",
                    "EquityToAssetRatio": "0.004",
                    "BookValuePerShare": "",
                    "CashFlowsFromOperatingActivities": "",
                    "CashFlowsFromInvestingActivities": "",
                    "CashFlowsFromFinancingActivities": "",
                    "CashAndEquivalents": "91135000000",
                    "ResultDividendPerShare1stQuarter": "",
                    "ResultDividendPerShare2ndQuarter": "26.0",
                    "ResultDividendPerShare3rdQuarter": "",
                    "ResultDividendPerShareFiscalYearEnd": "",
                    "ResultDividendPerShareAnnual": "",
                    "DistributionsPerUnit(REIT)": "",
                    "ResultTotalDividendPaidAnnual": "",
                    "ResultPayoutRatioAnnual": "",
                    "ForecastDividendPerShare1stQuarter": "",
                    "ForecastDividendPerShare2ndQuarter": "",
                    "ForecastDividendPerShare3rdQuarter": "",
                    "ForecastDividendPerShareFiscalYearEnd": "36.0",
                    "ForecastDividendPerShareAnnual": "62.0",
                    "ForecastDistributionsPerUnit(REIT)": "",
                    "ForecastTotalDividendPaidAnnual": "",
                    "ForecastPayoutRatioAnnual": "",
                    "NextYearForecastDividendPerShare1stQuarter": "",
                    "NextYearForecastDividendPerShare2ndQuarter": "",
                    "NextYearForecastDividendPerShare3rdQuarter": "",
                    "NextYearForecastDividendPerShareFiscalYearEnd": "",
                    "NextYearForecastDividendPerShareAnnual": "",
                    "NextYearForecastDistributionsPerUnit(REIT)": "",
                    "NextYearForecastPayoutRatioAnnual": "",
                    "ForecastNetSales2ndQuarter": "",
                    "ForecastOperatingProfit2ndQuarter": "",
                    "ForecastOrdinaryProfit2ndQuarter": "",
                    "ForecastProfit2ndQuarter": "",
                    "ForecastEarningsPerShare2ndQuarter": "",
                    "NextYearForecastNetSales2ndQuarter": "",
                    "NextYearForecastOperatingProfit2ndQuarter": "",
                    "NextYearForecastOrdinaryProfit2ndQuarter": "",
                    "NextYearForecastProfit2ndQuarter": "",
                    "NextYearForecastEarningsPerShare2ndQuarter": "",
                    "ForecastNetSales": "132500000000",
                    "ForecastOperatingProfit": "65500000000",
                    "ForecastOrdinaryProfit": "",
                    "ForecastProfit": "45000000000",
                    "ForecastEarningsPerShare": "85.42",
                    "NextYearForecastNetSales": "",
                    "NextYearForecastOperatingProfit": "",
                    "NextYearForecastOrdinaryProfit": "",
                    "NextYearForecastProfit": "",
                    "NextYearForecastEarningsPerShare": "",
                    "MaterialChangesInSubsidiaries": "false",
                    "SignificantChangesInTheScopeOfConsolidation": "",
                    "ChangesBasedOnRevisionsOfAccountingStandard": "false",
                    "ChangesOtherThanOnesBasedOnRevisionsOfAccountingStandard": "false",
                    "ChangesInAccountingEstimates": "true",
                    "RetrospectiveRestatement": "",
                    "NumberOfIssuedAndOutstandingSharesAtTheEndOfFiscalYearIncludingTreasuryStock": "528578441",
                    "NumberOfTreasuryStockAtTheEndOfFiscalYear": "1861043",
                    "AverageNumberOfShares": "526874759",
                    "NonConsolidatedNetSales": "",
                    "NonConsolidatedOperatingProfit": "",
                    "NonConsolidatedOrdinaryProfit": "",
                    "NonConsolidatedProfit": "",
                    "NonConsolidatedEarningsPerShare": "",
                    "NonConsolidatedTotalAssets": "",
                    "NonConsolidatedEquity": "",
                    "NonConsolidatedEquityToAssetRatio": "",
                    "NonConsolidatedBookValuePerShare": "",
                    "ForecastNonConsolidatedNetSales2ndQuarter": "",
                    "ForecastNonConsolidatedOperatingProfit2ndQuarter": "",
                    "ForecastNonConsolidatedOrdinaryProfit2ndQuarter": "",
                    "ForecastNonConsolidatedProfit2ndQuarter": "",
                    "ForecastNonConsolidatedEarningsPerShare2ndQuarter": "",
                    "NextYearForecastNonConsolidatedNetSales2ndQuarter": "",
                    "NextYearForecastNonConsolidatedOperatingProfit2ndQuarter": "",
                    "NextYearForecastNonConsolidatedOrdinaryProfit2ndQuarter": "",
                    "NextYearForecastNonConsolidatedProfit2ndQuarter": "",
                    "NextYearForecastNonConsolidatedEarningsPerShare2ndQuarter": "",
                    "ForecastNonConsolidatedNetSales": "",
                    "ForecastNonConsolidatedOperatingProfit": "",
                    "ForecastNonConsolidatedOrdinaryProfit": "",
                    "ForecastNonConsolidatedProfit": "",
                    "ForecastNonConsolidatedEarningsPerShare": "",
                    "NextYearForecastNonConsolidatedNetSales": "",
                    "NextYearForecastNonConsolidatedOperatingProfit": "",
                    "NextYearForecastNonConsolidatedOrdinaryProfit": "",
                    "NextYearForecastNonConsolidatedProfit": "",
                    "NextYearForecastNonConsolidatedEarningsPerShare": ""
              }
            ],
            "pagination_key": "value1.value2."
        }
        "#;

        let response: FinancialStatementsResponse = serde_json::from_str(json_data).unwrap();
        let expected_response = FinancialStatementsResponse {
            statements: vec![FinancialStatementItem {
                disclosed_date: "2023-01-30".to_string(),
                disclosed_time: "12:00:00".to_string(),
                local_code: "86970".to_string(),
                disclosure_number: "20230127594871".to_string(),
                type_of_document: TypeOfDocument::Q3FinancialStatementsConsolidatedIFRS,
                type_of_current_period: AccountingPeriod::Q3,
                current_period_start_date: "2022-04-01".to_string(),
                current_period_end_date: "2022-12-31".to_string(),
                current_fiscal_year_start_date: "2022-04-01".to_string(),
                current_fiscal_year_end_date: "2023-03-31".to_string(),
                next_fiscal_year_start_date: None,
                next_fiscal_year_end_date: None,
                net_sales: "100529000000".to_string(),
                operating_profit: "51765000000".to_string(),
                ordinary_profit: "".to_string(),
                profit: "35175000000".to_string(),
                earnings_per_share: "66.76".to_string(),
                diluted_earnings_per_share: "".to_string(),
                total_assets: "79205861000000".to_string(),
                equity: "320021000000".to_string(),
                equity_to_asset_ratio: "0.004".to_string(),
                book_value_per_share: "".to_string(),
                cash_flows_from_operating_activities: "".to_string(),
                cash_flows_from_investing_activities: "".to_string(),
                cash_flows_from_financing_activities: "".to_string(),
                cash_and_equivalents: "91135000000".to_string(),
                result_dividend_per_share_1st_quarter: "".to_string(),
                result_dividend_per_share_2nd_quarter: "26.0".to_string(),
                result_dividend_per_share_3rd_quarter: "".to_string(),
                result_dividend_per_share_fiscal_year_end: "".to_string(),
                result_dividend_per_share_annual: "".to_string(),
                distributions_per_unit_reit: "".to_string(),
                result_total_dividend_paid_annual: "".to_string(),
                result_payout_ratio_annual: "".to_string(),
                forecast_dividend_per_share_1st_quarter: "".to_string(),
                forecast_dividend_per_share_2nd_quarter: "".to_string(),
                forecast_dividend_per_share_3rd_quarter: "".to_string(),
                forecast_dividend_per_share_fiscal_year_end: "36.0".to_string(),
                forecast_dividend_per_share_annual: "62.0".to_string(),
                forecast_distributions_per_unit_reit: "".to_string(),
                forecast_total_dividend_paid_annual: "".to_string(),
                forecast_payout_ratio_annual: "".to_string(),
                next_year_forecast_dividend_per_share_1st_quarter: "".to_string(),
                next_year_forecast_dividend_per_share_2nd_quarter: "".to_string(),
                next_year_forecast_dividend_per_share_3rd_quarter: "".to_string(),
                next_year_forecast_dividend_per_share_fiscal_year_end: "".to_string(),
                next_year_forecast_dividend_per_share_annual: "".to_string(),
                next_year_forecast_distributions_per_unit_reit: "".to_string(),
                next_year_forecast_payout_ratio_annual: "".to_string(),
                forecast_net_sales_2nd_quarter: "".to_string(),
                forecast_operating_profit_2nd_quarter: "".to_string(),
                forecast_ordinary_profit_2nd_quarter: "".to_string(),
                forecast_profit_2nd_quarter: "".to_string(),
                forecast_earnings_per_share_2nd_quarter: "".to_string(),
                next_year_forecast_net_sales_2nd_quarter: "".to_string(),
                next_year_forecast_operating_profit_2nd_quarter: "".to_string(),
                next_year_forecast_ordinary_profit_2nd_quarter: "".to_string(),
                next_year_forecast_profit_2nd_quarter: "".to_string(),
                next_year_forecast_earnings_per_share_2nd_quarter: "".to_string(),
                forecast_net_sales: "132500000000".to_string(),
                forecast_operating_profit: "65500000000".to_string(),
                forecast_ordinary_profit: "".to_string(),
                forecast_profit: "45000000000".to_string(),
                forecast_earnings_per_share: "85.42".to_string(),
                next_year_forecast_net_sales: "".to_string(),
                next_year_forecast_operating_profit: "".to_string(),
                next_year_forecast_ordinary_profit: "".to_string(),
                next_year_forecast_profit: "".to_string(),
                next_year_forecast_earnings_per_share: "".to_string(),
                material_changes_in_subsidiaries: "false".to_string(),
                significant_changes_in_the_scope_of_consolidation: None,
                changes_based_on_revisions_of_accounting_standard: "false".to_string(),
                changes_other_than_based_on_revisions_of_accounting_standard: "false".to_string(),
                changes_in_accounting_estimates: "true".to_string(),
                retrospective_restatement: "".to_string(),
                number_of_issued_and_outstanding_shares_at_the_end_of_fiscal_year_including_treasury_stock: "528578441".to_string(),
                number_of_treasury_stock_at_the_end_of_fiscal_year: "1861043".to_string(),
                average_number_of_shares: "526874759".to_string(),
                non_consolidated_net_sales: "".to_string(),
                non_consolidated_operating_profit: "".to_string(),
                non_consolidated_ordinary_profit: "".to_string(),
                non_consolidated_profit: "".to_string(),
                non_consolidated_earnings_per_share: "".to_string(),
                non_consolidated_total_assets: "".to_string(),
                non_consolidated_equity: "".to_string(),
                non_consolidated_equity_to_asset_ratio: "".to_string(),
                non_consolidated_book_value_per_share: "".to_string(),
                forecast_non_consolidated_net_sales_2nd_quarter: "".to_string(),
                forecast_non_consolidated_operating_profit_2nd_quarter: "".to_string(),
                forecast_non_consolidated_ordinary_profit_2nd_quarter: "".to_string(),
                forecast_non_consolidated_profit_2nd_quarter: "".to_string(),
                forecast_non_consolidated_earnings_per_share_2nd_quarter: "".to_string(),
                next_year_forecast_non_consolidated_net_sales_2nd_quarter: "".to_string(),
                next_year_forecast_non_consolidated_operating_profit_2nd_quarter: "".to_string(),
                next_year_forecast_non_consolidated_ordinary_profit_2nd_quarter: "".to_string(),
                next_year_forecast_non_consolidated_profit_2nd_quarter: "".to_string(),
                next_year_forecast_non_consolidated_earnings_per_share_2nd_quarter: "".to_string(),
                forecast_non_consolidated_net_sales: "".to_string(),
                forecast_non_consolidated_operating_profit: "".to_string(),
                forecast_non_consolidated_ordinary_profit: "".to_string(),
                forecast_non_consolidated_profit: "".to_string(),
                forecast_non_consolidated_earnings_per_share: "".to_string(),
                next_year_forecast_non_consolidated_net_sales: "".to_string(),
                next_year_forecast_non_consolidated_operating_profit: "".to_string(),
                next_year_forecast_non_consolidated_ordinary_profit: "".to_string(),
                next_year_forecast_non_consolidated_profit: "".to_string(),
                next_year_forecast_non_consolidated_earnings_per_share: "".to_string(),
            }],
            pagination_key: Some("value1.value2.".to_string()),
        };

        pretty_assertions::assert_eq!(response, expected_response);
    }

    #[test]
    fn test_deserialize_financial_statements_response_no_pagination_key() {
        let json_data = r#"
        {
            "statements": [
                {
                    "DisclosedDate": "2023-01-30",
                    "DisclosedTime": "12:00:00",
                    "LocalCode": "86970",
                    "DisclosureNumber": "20230127594871",
                    "TypeOfDocument": "3QFinancialStatements_Consolidated_IFRS",
                    "TypeOfCurrentPeriod": "3Q",
                    "CurrentPeriodStartDate": "2022-04-01",
                    "CurrentPeriodEndDate": "2022-12-31",
                    "CurrentFiscalYearStartDate": "2022-04-01",
                    "CurrentFiscalYearEndDate": "2023-03-31",
                    "NextFiscalYearStartDate": "2024-11-01",
                    "NextFiscalYearEndDate": "2024-11-01",
                    "NetSales": "100529000000",
                    "OperatingProfit": "51765000000",
                    "OrdinaryProfit": "",
                    "Profit": "35175000000",
                    "EarningsPerShare": "66.76",
                    "DilutedEarningsPerShare": "",
                    "TotalAssets": "79205861000000",
                    "Equity": "320021000000",
                    "EquityToAssetRatio": "0.004",
                    "BookValuePerShare": "",
                    "CashFlowsFromOperatingActivities": "",
                    "CashFlowsFromInvestingActivities": "",
                    "CashFlowsFromFinancingActivities": "",
                    "CashAndEquivalents": "91135000000",
                    "ResultDividendPerShare1stQuarter": "",
                    "ResultDividendPerShare2ndQuarter": "26.0",
                    "ResultDividendPerShare3rdQuarter": "",
                    "ResultDividendPerShareFiscalYearEnd": "",
                    "ResultDividendPerShareAnnual": "",
                    "DistributionsPerUnit(REIT)": "",
                    "ResultTotalDividendPaidAnnual": "",
                    "ResultPayoutRatioAnnual": "",
                    "ForecastDividendPerShare1stQuarter": "",
                    "ForecastDividendPerShare2ndQuarter": "",
                    "ForecastDividendPerShare3rdQuarter": "",
                    "ForecastDividendPerShareFiscalYearEnd": "36.0",
                    "ForecastDividendPerShareAnnual": "62.0",
                    "ForecastDistributionsPerUnit(REIT)": "",
                    "ForecastTotalDividendPaidAnnual": "",
                    "ForecastPayoutRatioAnnual": "",
                    "NextYearForecastDividendPerShare1stQuarter": "",
                    "NextYearForecastDividendPerShare2ndQuarter": "",
                    "NextYearForecastDividendPerShare3rdQuarter": "",
                    "NextYearForecastDividendPerShareFiscalYearEnd": "",
                    "NextYearForecastDividendPerShareAnnual": "",
                    "NextYearForecastDistributionsPerUnit(REIT)": "",
                    "NextYearForecastPayoutRatioAnnual": "",
                    "ForecastNetSales2ndQuarter": "",
                    "ForecastOperatingProfit2ndQuarter": "",
                    "ForecastOrdinaryProfit2ndQuarter": "",
                    "ForecastProfit2ndQuarter": "",
                    "ForecastEarningsPerShare2ndQuarter": "",
                    "NextYearForecastNetSales2ndQuarter": "",
                    "NextYearForecastOperatingProfit2ndQuarter": "",
                    "NextYearForecastOrdinaryProfit2ndQuarter": "",
                    "NextYearForecastProfit2ndQuarter": "",
                    "NextYearForecastEarningsPerShare2ndQuarter": "",
                    "ForecastNetSales": "132500000000",
                    "ForecastOperatingProfit": "65500000000",
                    "ForecastOrdinaryProfit": "",
                    "ForecastProfit": "45000000000",
                    "ForecastEarningsPerShare": "85.42",
                    "NextYearForecastNetSales": "",
                    "NextYearForecastOperatingProfit": "",
                    "NextYearForecastOrdinaryProfit": "",
                    "NextYearForecastProfit": "",
                    "NextYearForecastEarningsPerShare": "",
                    "MaterialChangesInSubsidiaries": "false",
                    "SignificantChangesInTheScopeOfConsolidation": "2024-11-01",
                    "ChangesBasedOnRevisionsOfAccountingStandard": "false",
                    "ChangesOtherThanOnesBasedOnRevisionsOfAccountingStandard": "false",
                    "ChangesInAccountingEstimates": "true",
                    "RetrospectiveRestatement": "",
                    "NumberOfIssuedAndOutstandingSharesAtTheEndOfFiscalYearIncludingTreasuryStock": "528578441",
                    "NumberOfTreasuryStockAtTheEndOfFiscalYear": "1861043",
                    "AverageNumberOfShares": "526874759",
                    "NonConsolidatedNetSales": "",
                    "NonConsolidatedOperatingProfit": "",
                    "NonConsolidatedOrdinaryProfit": "",
                    "NonConsolidatedProfit": "",
                    "NonConsolidatedEarningsPerShare": "",
                    "NonConsolidatedTotalAssets": "",
                    "NonConsolidatedEquity": "",
                    "NonConsolidatedEquityToAssetRatio": "",
                    "NonConsolidatedBookValuePerShare": "",
                    "ForecastNonConsolidatedNetSales2ndQuarter": "",
                    "ForecastNonConsolidatedOperatingProfit2ndQuarter": "",
                    "ForecastNonConsolidatedOrdinaryProfit2ndQuarter": "",
                    "ForecastNonConsolidatedProfit2ndQuarter": "",
                    "ForecastNonConsolidatedEarningsPerShare2ndQuarter": "",
                    "NextYearForecastNonConsolidatedNetSales2ndQuarter": "",
                    "NextYearForecastNonConsolidatedOperatingProfit2ndQuarter": "",
                    "NextYearForecastNonConsolidatedOrdinaryProfit2ndQuarter": "",
                    "NextYearForecastNonConsolidatedProfit2ndQuarter": "",
                    "NextYearForecastNonConsolidatedEarningsPerShare2ndQuarter": "",
                    "ForecastNonConsolidatedNetSales": "",
                    "ForecastNonConsolidatedOperatingProfit": "",
                    "ForecastNonConsolidatedOrdinaryProfit": "",
                    "ForecastNonConsolidatedProfit": "",
                    "ForecastNonConsolidatedEarningsPerShare": "",
                    "NextYearForecastNonConsolidatedNetSales": "",
                    "NextYearForecastNonConsolidatedOperatingProfit": "",
                    "NextYearForecastNonConsolidatedOrdinaryProfit": "",
                    "NextYearForecastNonConsolidatedProfit": "",
                    "NextYearForecastNonConsolidatedEarningsPerShare": ""
                }
            ]
        }
        "#;

        let response: FinancialStatementsResponse = serde_json::from_str(json_data).unwrap();
        let expected_response = FinancialStatementsResponse {
            statements: vec![FinancialStatementItem {
                disclosed_date: "2023-01-30".to_string(),
                disclosed_time: "12:00:00".to_string(),
                local_code: "86970".to_string(),
                disclosure_number: "20230127594871".to_string(),
                type_of_document: TypeOfDocument::Q3FinancialStatementsConsolidatedIFRS,
                type_of_current_period: AccountingPeriod::Q3,
                current_period_start_date: "2022-04-01".to_string(),
                current_period_end_date: "2022-12-31".to_string(),
                current_fiscal_year_start_date: "2022-04-01".to_string(),
                current_fiscal_year_end_date: "2023-03-31".to_string(),
                next_fiscal_year_start_date: Some("2024-11-01".to_string()),
                next_fiscal_year_end_date: Some("2024-11-01".to_string()),
                net_sales: "100529000000".to_string(),
                operating_profit: "51765000000".to_string(),
                ordinary_profit: "".to_string(),
                profit: "35175000000".to_string(),
                earnings_per_share: "66.76".to_string(),
                diluted_earnings_per_share: "".to_string(),
                total_assets: "79205861000000".to_string(),
                equity: "320021000000".to_string(),
                equity_to_asset_ratio: "0.004".to_string(),
                book_value_per_share: "".to_string(),
                cash_flows_from_operating_activities: "".to_string(),
                cash_flows_from_investing_activities: "".to_string(),
                cash_flows_from_financing_activities: "".to_string(),
                cash_and_equivalents: "91135000000".to_string(),
                result_dividend_per_share_1st_quarter: "".to_string(),
                result_dividend_per_share_2nd_quarter: "26.0".to_string(),
                result_dividend_per_share_3rd_quarter: "".to_string(),
                result_dividend_per_share_fiscal_year_end: "".to_string(),
                result_dividend_per_share_annual: "".to_string(),
                distributions_per_unit_reit: "".to_string(),
                result_total_dividend_paid_annual: "".to_string(),
                result_payout_ratio_annual: "".to_string(),
                forecast_dividend_per_share_1st_quarter: "".to_string(),
                forecast_dividend_per_share_2nd_quarter: "".to_string(),
                forecast_dividend_per_share_3rd_quarter: "".to_string(),
                forecast_dividend_per_share_fiscal_year_end: "36.0".to_string(),
                forecast_dividend_per_share_annual: "62.0".to_string(),
                forecast_distributions_per_unit_reit: "".to_string(),
                forecast_total_dividend_paid_annual: "".to_string(),
                forecast_payout_ratio_annual: "".to_string(),
                next_year_forecast_dividend_per_share_1st_quarter: "".to_string(),
                next_year_forecast_dividend_per_share_2nd_quarter: "".to_string(),
                next_year_forecast_dividend_per_share_3rd_quarter: "".to_string(),
                next_year_forecast_dividend_per_share_fiscal_year_end: "".to_string(),
                next_year_forecast_dividend_per_share_annual: "".to_string(),
                next_year_forecast_distributions_per_unit_reit: "".to_string(),
                next_year_forecast_payout_ratio_annual: "".to_string(),
                forecast_net_sales_2nd_quarter: "".to_string(),
                forecast_operating_profit_2nd_quarter: "".to_string(),
                forecast_ordinary_profit_2nd_quarter: "".to_string(),
                forecast_profit_2nd_quarter: "".to_string(),
                forecast_earnings_per_share_2nd_quarter: "".to_string(),
                next_year_forecast_net_sales_2nd_quarter: "".to_string(),
                next_year_forecast_operating_profit_2nd_quarter: "".to_string(),
                next_year_forecast_ordinary_profit_2nd_quarter: "".to_string(),
                next_year_forecast_profit_2nd_quarter: "".to_string(),
                next_year_forecast_earnings_per_share_2nd_quarter: "".to_string(),
                forecast_net_sales: "132500000000".to_string(),
                forecast_operating_profit: "65500000000".to_string(),
                forecast_ordinary_profit: "".to_string(),
                forecast_profit: "45000000000".to_string(),
                forecast_earnings_per_share: "85.42".to_string(),
                next_year_forecast_net_sales: "".to_string(),
                next_year_forecast_operating_profit: "".to_string(),
                next_year_forecast_ordinary_profit: "".to_string(),
                next_year_forecast_profit: "".to_string(),
                next_year_forecast_earnings_per_share: "".to_string(),
                material_changes_in_subsidiaries: "false".to_string(),
                significant_changes_in_the_scope_of_consolidation: Some("2024-11-01".to_string()),
                changes_based_on_revisions_of_accounting_standard: "false".to_string(),
                changes_other_than_based_on_revisions_of_accounting_standard: "false".to_string(),
                changes_in_accounting_estimates: "true".to_string(),
                retrospective_restatement: "".to_string(),
                number_of_issued_and_outstanding_shares_at_the_end_of_fiscal_year_including_treasury_stock: "528578441".to_string(),
                number_of_treasury_stock_at_the_end_of_fiscal_year: "1861043".to_string(),
                average_number_of_shares: "526874759".to_string(),
                non_consolidated_net_sales: "".to_string(),
                non_consolidated_operating_profit: "".to_string(),
                non_consolidated_ordinary_profit: "".to_string(),
                non_consolidated_profit: "".to_string(),
                non_consolidated_earnings_per_share: "".to_string(),
                non_consolidated_total_assets: "".to_string(),
                non_consolidated_equity: "".to_string(),
                non_consolidated_equity_to_asset_ratio: "".to_string(),
                non_consolidated_book_value_per_share: "".to_string(),
                forecast_non_consolidated_net_sales_2nd_quarter: "".to_string(),
                forecast_non_consolidated_operating_profit_2nd_quarter: "".to_string(),
                forecast_non_consolidated_ordinary_profit_2nd_quarter: "".to_string(),
                forecast_non_consolidated_profit_2nd_quarter: "".to_string(),
                forecast_non_consolidated_earnings_per_share_2nd_quarter: "".to_string(),
                next_year_forecast_non_consolidated_net_sales_2nd_quarter: "".to_string(),
                next_year_forecast_non_consolidated_operating_profit_2nd_quarter: "".to_string(),
                next_year_forecast_non_consolidated_ordinary_profit_2nd_quarter: "".to_string(),
                next_year_forecast_non_consolidated_profit_2nd_quarter: "".to_string(),
                next_year_forecast_non_consolidated_earnings_per_share_2nd_quarter: "".to_string(),
                forecast_non_consolidated_net_sales: "".to_string(),
                forecast_non_consolidated_operating_profit: "".to_string(),
                forecast_non_consolidated_ordinary_profit: "".to_string(),
                forecast_non_consolidated_profit: "".to_string(),
                forecast_non_consolidated_earnings_per_share: "".to_string(),
                next_year_forecast_non_consolidated_net_sales: "".to_string(),
                next_year_forecast_non_consolidated_operating_profit: "".to_string(),
                next_year_forecast_non_consolidated_ordinary_profit: "".to_string(),
                next_year_forecast_non_consolidated_profit: "".to_string(),
                next_year_forecast_non_consolidated_earnings_per_share: "".to_string(),
            }],
            pagination_key: None,
        };

        pretty_assertions::assert_eq!(response, expected_response);
    }

    #[test]
    fn test_deserialize_financial_statements_response_no_data() {
        let json_data = r#"
        {
            "statements": []
        }
        "#;

        let response: FinancialStatementsResponse = serde_json::from_str(json_data).unwrap();
        let expected_response = FinancialStatementsResponse {
            statements: vec![],
            pagination_key: None,
        };

        pretty_assertions::assert_eq!(response, expected_response);
    }
}