use yew::prelude::*;
use wasm_bindgen::JsCast;
use crate::components::accounting::models::*;
use js_sys;

#[derive(Properties, PartialEq)]
pub struct ExpensesTabProps {
    pub state: UseStateHandle<AccountingState>,
}

#[function_component(ExpensesTab)]
pub fn expenses_tab(props: &ExpensesTabProps) -> Html {
    let state = &props.state;

    html! {
        <div class="animate-fade-in-up">
            // Expense Form Modal
            {if state.show_expense_form {
                html! {
                    <div class="modal fade show d-block" style="background-color: rgba(0,0,0,0.5);">
                        <div class="modal-dialog modal-lg">
                            <div class="modal-content">
                                <div class="modal-header">
                                    <h5 class="modal-title">{"Add New Expense"}</h5>
                                    <button type="button" class="btn-close" onclick={
                                        let state = state.clone();
                                        Callback::from(move |_| {
                                            let mut new_state = (*state).clone();
                                            new_state.show_expense_form = false;
                                            state.set(new_state);
                                        })
                                    }></button>
                                </div>
                                <div class="modal-body">
                                    <form>
                                        <div class="row g-3">
                                            <div class="col-md-6">
                                                <label class="form-label">{"Receipt Number"}</label>
                                                <input type="text" class="form-control" value={state.expense_form.receipt_number.clone()} readonly=true />
                                            </div>
                                            <div class="col-md-6">
                                                <label class="form-label">{"Date"}</label>
                                                <input type="date" class="form-control" value={state.expense_form.date.clone()} onchange={
                                                    let state = state.clone();
                                                    Callback::from(move |e: Event| {
                                                        let input: web_sys::HtmlInputElement = e.target_unchecked_into();
                                                        let mut new_state = (*state).clone();
                                                        new_state.expense_form.date = input.value();
                                                        state.set(new_state);
                                                    })
                                                } />
                                            </div>
                                            <div class="col-md-6">
                                                <label class="form-label">{"Vendor Name"}</label>
                                                <input type="text" class="form-control" value={state.expense_form.vendor_name.clone()} onchange={
                                                    let state = state.clone();
                                                    Callback::from(move |e: Event| {
                                                        let input: web_sys::HtmlInputElement = e.target_unchecked_into();
                                                        let mut new_state = (*state).clone();
                                                        new_state.expense_form.vendor_name = input.value();
                                                        state.set(new_state);
                                                    })
                                                } />
                                            </div>
                                            <div class="col-md-6">
                                                <label class="form-label">{"Vendor Email"}</label>
                                                <input type="email" class="form-control" value={state.expense_form.vendor_email.clone()} onchange={
                                                    let state = state.clone();
                                                    Callback::from(move |e: Event| {
                                                        let input: web_sys::HtmlInputElement = e.target_unchecked_into();
                                                        let mut new_state = (*state).clone();
                                                        new_state.expense_form.vendor_email = input.value();
                                                        state.set(new_state);
                                                    })
                                                } />
                                            </div>
                                            <div class="col-12">
                                                <label class="form-label">{"Description"}</label>
                                                <textarea class="form-control" rows="3" value={state.expense_form.description.clone()} onchange={
                                                    let state = state.clone();
                                                    Callback::from(move |e: Event| {
                                                        let input: web_sys::HtmlInputElement = e.target_unchecked_into();
                                                        let mut new_state = (*state).clone();
                                                        new_state.expense_form.description = input.value();
                                                        state.set(new_state);
                                                    })
                                                }></textarea>
                                            </div>
                                            <div class="col-md-6">
                                                <label class="form-label">{"Amount"}</label>
                                                <input type="number" step="0.01" class="form-control" value={state.expense_form.amount.to_string()} onchange={
                                                    let state = state.clone();
                                                    Callback::from(move |e: Event| {
                                                        let input: web_sys::HtmlInputElement = e.target_unchecked_into();
                                                        let mut new_state = (*state).clone();
                                                        new_state.expense_form.amount = input.value().parse().unwrap_or(0.0);
                                                        state.set(new_state);
                                                    })
                                                } />
                                            </div>
                                            <div class="col-md-6">
                                                <label class="form-label">{"Tax Amount"}</label>
                                                <input type="number" step="0.01" class="form-control" value={state.expense_form.tax_amount.to_string()} onchange={
                                                    let state = state.clone();
                                                    Callback::from(move |e: Event| {
                                                        let input: web_sys::HtmlInputElement = e.target_unchecked_into();
                                                        let mut new_state = (*state).clone();
                                                        new_state.expense_form.tax_amount = input.value().parse().unwrap_or(0.0);
                                                        state.set(new_state);
                                                    })
                                                } />
                                            </div>
                                            <div class="col-md-6">
                                                <label class="form-label">{"Tax Deductible"}</label>
                                                <select class="form-select" onchange={
                                                    let state = state.clone();
                                                    Callback::from(move |e: Event| {
                                                        let select: web_sys::HtmlSelectElement = e.target_unchecked_into();
                                                        let mut new_state = (*state).clone();
                                                        new_state.expense_form.is_deductible = select.value() == "true";
                                                        state.set(new_state);
                                                    })
                                                }>
                                                    <option value="true" selected={state.expense_form.is_deductible}>{"Yes"}</option>
                                                    <option value="false" selected={!state.expense_form.is_deductible}>{"No"}</option>
                                                </select>
                                            </div>
                                            <div class="col-md-6">
                                                <label class="form-label">{"Project Code (Optional)"}</label>
                                                <input type="text" class="form-control" value={state.expense_form.project_code.clone().unwrap_or_default()} onchange={
                                                    let state = state.clone();
                                                    Callback::from(move |e: Event| {
                                                        let input: web_sys::HtmlInputElement = e.target_unchecked_into();
                                                        let mut new_state = (*state).clone();
                                                        let value = input.value();
                                                        new_state.expense_form.project_code = if value.is_empty() { None } else { Some(value) };
                                                        state.set(new_state);
                                                    })
                                                } />
                                            </div>
                                        </div>
                                    </form>
                                </div>
                                <div class="modal-footer">
                                    <button type="button" class="btn btn-secondary" onclick={
                                        let state = state.clone();
                                        Callback::from(move |_| {
                                            let mut new_state = (*state).clone();
                                            new_state.show_expense_form = false;
                                            state.set(new_state);
                                        })
                                    }>{"Cancel"}</button>
                                    <button type="button" class="btn btn-danger" onclick={
                                        let state = state.clone();
                                        Callback::from(move |_| {
                                            let mut new_state = (*state).clone();
                                            // Calculate total
                                            new_state.expense_form.total_amount = new_state.expense_form.amount + new_state.expense_form.tax_amount;
                                            
                                            // Add to entries
                                            new_state.expense_entries.push(new_state.expense_form.clone());
                                            
                                            // Reset form
                                            new_state.show_expense_form = false;
                                            new_state.expense_form = AccountingState::default().expense_form;
                                            state.set(new_state);
                                        })
                                    }>{"Add Expense"}</button>
                                </div>
                            </div>
                        </div>
                    </div>
                }
            } else {
                html! {}
            }}

            // Expense Detail Modal
            {if state.show_expense_detail {
                if let Some(expense_id) = &state.selected_expense_id {
                    if let Some(expense) = state.expense_entries.iter().find(|e| &e.id == expense_id) {
                        let expense_transactions: Vec<&PaymentTransaction> = state.payment_transactions.iter()
                            .filter(|t| t.expense_id.as_ref() == Some(expense_id))
                            .collect();
                        let total_paid: f64 = expense_transactions.iter().map(|t| t.amount).sum();
                        let remaining_balance = expense.total_amount - total_paid;
                        
                        html! {
                            <div class="modal fade show d-block" style="background-color: rgba(0,0,0,0.5);">
                                <div class="modal-dialog modal-xl">
                                    <div class="modal-content">
                                        <div class="modal-header">
                                            <h5 class="modal-title">{format!("Expense Details - {}", expense.receipt_number)}</h5>
                                            <button type="button" class="btn-close" onclick={
                                                let state = state.clone();
                                                Callback::from(move |_| {
                                                    let mut new_state = (*state).clone();
                                                    new_state.show_expense_detail = false;
                                                    new_state.selected_expense_id = None;
                                                    state.set(new_state);
                                                })
                                            }></button>
                                        </div>
                                        <div class="modal-body">
                                            <div class="row g-4">
                                                // Expense Information
                                                <div class="col-md-6">
                                                    <div class="card">
                                                        <div class="card-header">
                                                            <h6 class="mb-0">{"Expense Information"}</h6>
                                                        </div>
                                                        <div class="card-body">
                                                            <div class="row g-2">
                                                                <div class="col-6"><strong>{"Receipt #:"}</strong></div>
                                                                <div class="col-6">{&expense.receipt_number}</div>
                                                                <div class="col-6"><strong>{"Date:"}</strong></div>
                                                                <div class="col-6">{&expense.date}</div>
                                                                <div class="col-6"><strong>{"Category:"}</strong></div>
                                                                <div class="col-6">{expense.category.to_string()}</div>
                                                                <div class="col-6"><strong>{"Status:"}</strong></div>
                                                                <div class="col-6">
                                                                    <span class={format!("badge bg-{}", expense.payment_status.get_color())}>
                                                                        {expense.payment_status.to_string()}
                                                                    </span>
                                                                </div>
                                                                <div class="col-6"><strong>{"Total Amount:"}</strong></div>
                                                                <div class="col-6 fw-bold text-danger">{format!("${:.2}", expense.total_amount)}</div>
                                                                <div class="col-6"><strong>{"Amount Paid:"}</strong></div>
                                                                <div class="col-6 fw-bold text-primary">{format!("${:.2}", total_paid)}</div>
                                                                <div class="col-6"><strong>{"Remaining:"}</strong></div>
                                                                <div class="col-6 fw-bold text-warning">{format!("${:.2}", remaining_balance)}</div>
                                                            </div>
                                                        </div>
                                                    </div>
                                                </div>
                                                
                                                // Vendor Information
                                                <div class="col-md-6">
                                                    <div class="card">
                                                        <div class="card-header">
                                                            <h6 class="mb-0">{"Vendor Information"}</h6>
                                                        </div>
                                                        <div class="card-body">
                                                            <div class="row g-2">
                                                                <div class="col-4"><strong>{"Name:"}</strong></div>
                                                                <div class="col-8">{&expense.vendor_name}</div>
                                                                <div class="col-4"><strong>{"Email:"}</strong></div>
                                                                <div class="col-8">{&expense.vendor_email}</div>
                                                                <div class="col-4"><strong>{"Address:"}</strong></div>
                                                                <div class="col-8">{&expense.vendor_address}</div>
                                                            </div>
                                                        </div>
                                                    </div>
                                                </div>
                                                
                                                // Payment Transactions
                                                <div class="col-12">
                                                    <div class="card">
                                                        <div class="card-header d-flex justify-content-between align-items-center">
                                                            <h6 class="mb-0">{"Payment Transactions"}</h6>
                                                            <button class="btn btn-sm btn-primary" onclick={
                                                                let state = state.clone();
                                                                let expense_id = expense.id.clone();
                                                                Callback::from(move |_| {
                                                                    let mut new_state = (*state).clone();
                                                                    new_state.show_transaction_form = true;
                                                                    new_state.transaction_form.expense_id = Some(expense_id.clone());
                                                                    state.set(new_state);
                                                                })
                                                            }>
                                                                <i class="bi bi-plus-circle me-1"></i>{"Record Payment"}
                                                            </button>
                                                        </div>
                                                        <div class="card-body p-0">
                                                            {if expense_transactions.is_empty() {
                                                                html! {
                                                                    <div class="text-center py-4 text-muted">
                                                                        <i class="bi bi-credit-card fs-1 mb-2 d-block"></i>
                                                                        <p class="mb-0">{"No payments recorded yet"}</p>
                                                                    </div>
                                                                }
                                                            } else {
                                                                html! {
                                                                    <div class="table-responsive">
                                                                        <table class="table table-hover mb-0">
                                                                            <thead class="bg-light">
                                                                                <tr>
                                                                                    <th class="border-0 py-3">{"Date"}</th>
                                                                                    <th class="border-0 py-3">{"Amount"}</th>
                                                                                    <th class="border-0 py-3">{"Method"}</th>
                                                                                    <th class="border-0 py-3">{"Reference"}</th>
                                                                                    <th class="border-0 py-3">{"Status"}</th>
                                                                                    <th class="border-0 py-3">{"Notes"}</th>
                                                                                </tr>
                                                                            </thead>
                                                                            <tbody>
                                                                                {for expense_transactions.iter().map(|transaction| {
                                                                                    html! {
                                                                                        <tr>
                                                                                            <td class="py-3">{&transaction.date}</td>
                                                                                            <td class="py-3 fw-bold text-danger">{format!("${:.2}", transaction.amount)}</td>
                                                                                            <td class="py-3">
                                                                                                <div class="d-flex align-items-center">
                                                                                                    <i class={format!("bi bi-{} text-{} me-2", transaction.payment_method.get_icon(), transaction.payment_method.get_color())}></i>
                                                                                                    {transaction.payment_method.to_string()}
                                                                                                </div>
                                                                                            </td>
                                                                                            <td class="py-3">
                                                                                                {if let Some(hash) = &transaction.transaction_hash {
                                                                                                    html! { <code class="small">{&hash[..12]}{"..."}</code> }
                                                                                                } else if let Some(ref_num) = &transaction.reference_number {
                                                                                                    html! { <span>{ref_num}</span> }
                                                                                                } else {
                                                                                                    html! { <span class="text-muted">{"-"}</span> }
                                                                                                }}
                                                                                            </td>
                                                                                            <td class="py-3">
                                                                                                <span class={format!("badge bg-{}", transaction.status.get_color())}>
                                                                                                    {transaction.status.to_string()}
                                                                                                </span>
                                                                                            </td>
                                                                                            <td class="py-3">{&transaction.notes}</td>
                                                                                        </tr>
                                                                                    }
                                                                                })}
                                                                            </tbody>
                                                                        </table>
                                                                    </div>
                                                                }
                                                            }}
                                                        </div>
                                                    </div>
                                                </div>
                                            </div>
                                        </div>
                                        <div class="modal-footer">
                                            <button type="button" class="btn btn-secondary" onclick={
                                                let state = state.clone();
                                                Callback::from(move |_| {
                                                    let mut new_state = (*state).clone();
                                                    new_state.show_expense_detail = false;
                                                    new_state.selected_expense_id = None;
                                                    state.set(new_state);
                                                })
                                            }>{"Close"}</button>
                                            <button type="button" class="btn btn-primary" onclick={
                                                let state = state.clone();
                                                let expense_id = expense.id.clone();
                                                Callback::from(move |_| {
                                                    let mut new_state = (*state).clone();
                                                    new_state.show_transaction_form = true;
                                                    new_state.transaction_form.expense_id = Some(expense_id.clone());
                                                    state.set(new_state);
                                                })
                                            }>
                                                <i class="bi bi-credit-card me-2"></i>{"Record Payment"}
                                            </button>
                                        </div>
                                    </div>
                                </div>
                            </div>
                        }
                    } else {
                        html! {}
                    }
                } else {
                    html! {}
                }
            } else {
                html! {}
            }}

            // Transaction Form Modal (for expense payments)
            {if state.show_transaction_form && state.transaction_form.expense_id.is_some() {
                html! {
                    <div class="modal fade show d-block" style="background-color: rgba(0,0,0,0.5);">
                        <div class="modal-dialog modal-lg">
                            <div class="modal-content">
                                <div class="modal-header">
                                    <h5 class="modal-title">{"Record Expense Payment"}</h5>
                                    <button type="button" class="btn-close" onclick={
                                        let state = state.clone();
                                        Callback::from(move |_| {
                                            let mut new_state = (*state).clone();
                                            new_state.show_transaction_form = false;
                                            state.set(new_state);
                                        })
                                    }></button>
                                </div>
                                <div class="modal-body">
                                    <form>
                                        <div class="row g-3">
                                            <div class="col-md-6">
                                                <label class="form-label">{"Expense Receipt Number"}</label>
                                                <input type="text" class="form-control" value={state.transaction_form.expense_id.clone().unwrap_or_default()} readonly=true />
                                            </div>
                                            <div class="col-md-6">
                                                <label class="form-label">{"Payment Amount"}</label>
                                                <input type="number" step="0.01" class="form-control" value={state.transaction_form.amount.to_string()} onchange={
                                                    let state = state.clone();
                                                    Callback::from(move |e: Event| {
                                                        let input: web_sys::HtmlInputElement = e.target_unchecked_into();
                                                        let mut new_state = (*state).clone();
                                                        new_state.transaction_form.amount = input.value().parse().unwrap_or(0.0);
                                                        state.set(new_state);
                                                    })
                                                } />
                                            </div>
                                            <div class="col-12">
                                                <label class="form-label">{"Payment Method"}</label>
                                                <select class="form-select" onchange={
                                                    let state = state.clone();
                                                    Callback::from(move |e: Event| {
                                                        let select: web_sys::HtmlSelectElement = e.target_unchecked_into();
                                                        let mut new_state = (*state).clone();
                                                        new_state.transaction_form.payment_method = match select.value().as_str() {
                                                            "BankTransfer" => PaymentMethod::BankTransfer,
                                                            "CreditCard" => PaymentMethod::CreditCard,
                                                            "CryptoBitcoin" => PaymentMethod::CryptoBitcoin,
                                                            "CryptoEthereum" => PaymentMethod::CryptoEthereum,
                                                            "CryptoUSDC" => PaymentMethod::CryptoUSDC,
                                                            "Cash" => PaymentMethod::Cash,
                                                            "Check" => PaymentMethod::Check,
                                                            _ => PaymentMethod::BankTransfer,
                                                        };
                                                        state.set(new_state);
                                                    })
                                                }>
                                                    <option value="BankTransfer" selected={matches!(state.transaction_form.payment_method, PaymentMethod::BankTransfer)}>{"Bank Transfer"}</option>
                                                    <option value="CreditCard" selected={matches!(state.transaction_form.payment_method, PaymentMethod::CreditCard)}>{"Credit Card"}</option>
                                                    <option value="CryptoBitcoin" selected={matches!(state.transaction_form.payment_method, PaymentMethod::CryptoBitcoin)}>{"Bitcoin"}</option>
                                                    <option value="CryptoEthereum" selected={matches!(state.transaction_form.payment_method, PaymentMethod::CryptoEthereum)}>{"Ethereum"}</option>
                                                    <option value="CryptoUSDC" selected={matches!(state.transaction_form.payment_method, PaymentMethod::CryptoUSDC)}>{"USDC"}</option>
                                                    <option value="Cash" selected={matches!(state.transaction_form.payment_method, PaymentMethod::Cash)}>{"Cash"}</option>
                                                    <option value="Check" selected={matches!(state.transaction_form.payment_method, PaymentMethod::Check)}>{"Check"}</option>
                                                </select>
                                            </div>
                                            {if matches!(state.transaction_form.payment_method, PaymentMethod::CryptoBitcoin | PaymentMethod::CryptoEthereum | PaymentMethod::CryptoUSDC | PaymentMethod::CryptoOther) {
                                                html! {
                                                    <div class="col-12">
                                                        <label class="form-label">{"Transaction Hash"}</label>
                                                        <input type="text" class="form-control" placeholder="0x..." value={state.transaction_form.transaction_hash.clone()} onchange={
                                                            let state = state.clone();
                                                            Callback::from(move |e: Event| {
                                                                let input: web_sys::HtmlInputElement = e.target_unchecked_into();
                                                                let mut new_state = (*state).clone();
                                                                new_state.transaction_form.transaction_hash = input.value();
                                                                state.set(new_state);
                                                            })
                                                        } />
                                                    </div>
                                                }
                                            } else {
                                                html! {
                                                    <div class="col-12">
                                                        <label class="form-label">{"Reference Number"}</label>
                                                        <input type="text" class="form-control" placeholder="REF-2024-001" value={state.transaction_form.reference_number.clone()} onchange={
                                                            let state = state.clone();
                                                            Callback::from(move |e: Event| {
                                                                let input: web_sys::HtmlInputElement = e.target_unchecked_into();
                                                                let mut new_state = (*state).clone();
                                                                new_state.transaction_form.reference_number = input.value();
                                                                state.set(new_state);
                                                            })
                                                        } />
                                                    </div>
                                                }
                                            }}
                                            <div class="col-12">
                                                <label class="form-label">{"Notes"}</label>
                                                <textarea class="form-control" rows="3" value={state.transaction_form.notes.clone()} onchange={
                                                    let state = state.clone();
                                                    Callback::from(move |e: Event| {
                                                        let input: web_sys::HtmlInputElement = e.target_unchecked_into();
                                                        let mut new_state = (*state).clone();
                                                        new_state.transaction_form.notes = input.value();
                                                        state.set(new_state);
                                                    })
                                                }></textarea>
                                            </div>
                                            <div class="col-12">
                                                <label class="form-label">{"Attach Files"}</label>
                                                <input type="file" class="form-control" multiple=true accept=".pdf,.jpg,.jpeg,.png" />
                                                <small class="text-muted">{"Upload receipts, confirmations, or other supporting documents"}</small>
                                            </div>
                                        </div>
                                    </form>
                                </div>
                                <div class="modal-footer">
                                    <button type="button" class="btn btn-secondary" onclick={
                                        let state = state.clone();
                                        Callback::from(move |_| {
                                            let mut new_state = (*state).clone();
                                            new_state.show_transaction_form = false;
                                            state.set(new_state);
                                        })
                                    }>{"Cancel"}</button>
                                    <button type="button" class="btn btn-success" onclick={
                                        let state = state.clone();
                                        Callback::from(move |_| {
                                            let mut new_state = (*state).clone();
                                            
                                            // Create new transaction
                                            let transaction_count = new_state.payment_transactions.len() + 1;
                                            let new_transaction = PaymentTransaction {
                                                id: format!("TXN-2024-{:03}", transaction_count),
                                                invoice_id: None,
                                                expense_id: new_state.transaction_form.expense_id.clone(),
                                                date: js_sys::Date::new_0().to_iso_string().as_string().unwrap()[..10].to_string(),
                                                amount: new_state.transaction_form.amount,
                                                payment_method: new_state.transaction_form.payment_method.clone(),
                                                transaction_hash: if new_state.transaction_form.transaction_hash.is_empty() { None } else { Some(new_state.transaction_form.transaction_hash.clone()) },
                                                reference_number: if new_state.transaction_form.reference_number.is_empty() { None } else { Some(new_state.transaction_form.reference_number.clone()) },
                                                notes: new_state.transaction_form.notes.clone(),
                                                attached_files: new_state.transaction_form.attached_files.clone(),
                                                status: TransactionStatus::Confirmed,
                                            };
                                            
                                            new_state.payment_transactions.push(new_transaction);
                                            new_state.show_transaction_form = false;
                                            new_state.transaction_form = TransactionForm::default();
                                            state.set(new_state);
                                        })
                                    }>{"Record Payment"}</button>
                                </div>
                            </div>
                        </div>
                    </div>
                }
            } else {
                html! {}
            }}

            // Expense Actions and Table
            <div class="row g-4">
                <div class="col-12">
                    <div class="card shadow-soft border-0">
                        <div class="card-header bg-white border-bottom-0 py-3">
                            <div class="d-flex justify-content-between align-items-center">
                                <div>
                                    <h5 class="mb-0 fw-bold">{"Expense Entries"}</h5>
                                    <small class="text-muted">{"Click on any row to view details"}</small>
                                </div>
                                <div class="d-flex gap-2">
                                    <button class="btn btn-outline-primary btn-sm" onclick={
                                        Callback::from(move |_| {
                                            web_sys::window()
                                                .unwrap()
                                                .alert_with_message("Expense filter feature coming soon!")
                                                .unwrap();
                                        })
                                    }>
                                        <i class="bi bi-funnel me-2"></i>{"Filter"}
                                    </button>
                                    <button class="btn btn-outline-secondary btn-sm" onclick={
                                        let expense_entries = state.expense_entries.clone();
                                        Callback::from(move |_| {
                                            // Create CSV content
                                            let mut csv_content = "Receipt Number,Date,Vendor Name,Vendor Email,Description,Amount,Tax Amount,Total Amount,Category,Payment Method,Payment Status,Tax Deductible,Approval Status,Approved By,Notes,Project Code,Currency\n".to_string();
                                            
                                            for entry in &expense_entries {
                                                csv_content.push_str(&format!(
                                                    "{},{},{},{},{},{},{},{},{},{},{},{},{},{},{},{},{}\n",
                                                    entry.receipt_number,
                                                    entry.date,
                                                    entry.vendor_name,
                                                    entry.vendor_email,
                                                    entry.description.replace(",", ";"),
                                                    entry.amount,
                                                    entry.tax_amount,
                                                    entry.total_amount,
                                                    entry.category.to_string(),
                                                    entry.payment_method.to_string(),
                                                    entry.payment_status.to_string(),
                                                    entry.is_deductible,
                                                    entry.approval_status.to_string(),
                                                    entry.approved_by.as_ref().unwrap_or(&"".to_string()),
                                                    entry.notes.replace(",", ";"),
                                                    entry.project_code.as_ref().unwrap_or(&"".to_string()),
                                                    entry.currency
                                                ));
                                            }
                                            
                                            // Create and download file
                                            let window = web_sys::window().unwrap();
                                            let document = window.document().unwrap();
                                            let element = document.create_element("a").unwrap();
                                            element.set_attribute("href", &format!("data:text/csv;charset=utf-8,{}", js_sys::encode_uri_component(&csv_content))).unwrap();
                                            element.set_attribute("download", "expenses_export.csv").unwrap();
                                            element.set_attribute("style", "display: none").unwrap();
                                            document.body().unwrap().append_child(&element).unwrap();
                                            let html_element: web_sys::HtmlElement = element.clone().dyn_into().unwrap();
                                            html_element.click();
                                            document.body().unwrap().remove_child(&element).unwrap();
                                        })
                                    }>
                                        <i class="bi bi-download me-2"></i>{"Export"}
                                    </button>
                                    <button class="btn btn-danger btn-sm" onclick={
                                        let state = state.clone();
                                        Callback::from(move |_| {
                                            let mut new_state = (*state).clone();
                                            new_state.show_expense_form = true;
                                            let expense_count = new_state.expense_entries.len() + 1;
                                            new_state.expense_form.receipt_number = format!("EXP-2024-{:03}", expense_count);
                                            new_state.expense_form.id = new_state.expense_form.receipt_number.clone();
                                            state.set(new_state);
                                        })
                                    }>
                                        <i class="bi bi-plus-circle me-2"></i>{"Add Expense"}
                                    </button>
                                </div>
                            </div>
                        </div>
                        <div class="card-body p-0">
                            <div class="table-responsive">
                                <table class="table table-hover mb-0">
                                    <thead class="bg-light">
                                        <tr>
                                            <th class="border-0 py-3 px-4">{"Receipt #"}</th>
                                            <th class="border-0 py-3">{"Vendor"}</th>
                                            <th class="border-0 py-3">{"Description"}</th>
                                            <th class="border-0 py-3">{"Amount"}</th>
                                            <th class="border-0 py-3">{"Payment Method"}</th>
                                            <th class="border-0 py-3">{"Status"}</th>
                                            <th class="border-0 py-3">{"Approval"}</th>
                                            <th class="border-0 py-3">{"Actions"}</th>
                                        </tr>
                                    </thead>
                                    <tbody>
                                        {for state.expense_entries.iter().map(|entry| {
                                            html! {
                                                <tr class="border-bottom">
                                                    <td class="py-3 px-4 cursor-pointer" style="cursor: pointer;" onclick={
                                                        let state = state.clone();
                                                        let expense_id = entry.id.clone();
                                                        Callback::from(move |_| {
                                                            let mut new_state = (*state).clone();
                                                            new_state.show_expense_detail = true;
                                                            new_state.selected_expense_id = Some(expense_id.clone());
                                                            state.set(new_state);
                                                        })
                                                    }>
                                                        <div class="fw-bold text-primary">{&entry.receipt_number}</div>
                                                        <small class="text-muted">{&entry.date}</small>
                                                    </td>
                                                    <td class="py-3">
                                                        <div class="fw-semibold">{&entry.vendor_name}</div>
                                                        <small class="text-muted">{&entry.vendor_email}</small>
                                                    </td>
                                                    <td class="py-3">
                                                        <div class="fw-semibold">{&entry.description}</div>
                                                        <small class="text-muted">
                                                            <span class={format!("badge bg-{} bg-opacity-10 text-{} me-1", entry.category.get_color(), entry.category.get_color())}>
                                                                {entry.category.to_string()}
                                                            </span>
                                                            {if entry.is_deductible { "• Tax Deductible" } else { "" }}
                                                            {if let Some(project) = &entry.project_code {
                                                                html! { <span class="ms-1">{format!("• {}", project)}</span> }
                                                            } else {
                                                                html! {}
                                                            }}
                                                        </small>
                                                    </td>
                                                    <td class="py-3">
                                                        <div class="fw-bold text-danger">{format!("${:.2}", entry.total_amount)}</div>
                                                        <small class="text-muted">{format!("${:.2} + ${:.2} tax", entry.amount, entry.tax_amount)}</small>
                                                    </td>
                                                    <td class="py-3">
                                                        <div class="d-flex align-items-center">
                                                            <i class={format!("bi bi-{} text-{} me-2", entry.payment_method.get_icon(), entry.payment_method.get_color())}></i>
                                                            <span class="small">{entry.payment_method.to_string()}</span>
                                                        </div>
                                                    </td>
                                                    <td class="py-3">
                                                        <span class={format!("badge bg-{} bg-opacity-10 text-{}", entry.payment_status.get_color(), entry.payment_status.get_color())}>
                                                            {entry.payment_status.to_string()}
                                                        </span>
                                                    </td>
                                                    <td class="py-3">
                                                        <span class={format!("badge bg-{} bg-opacity-10 text-{}", entry.approval_status.get_color(), entry.approval_status.get_color())}>
                                                            {entry.approval_status.to_string()}
                                                        </span>
                                                        {
                                                            if let Some(approver) = &entry.approved_by {
                                                                html! { <small class="d-block text-muted">{format!("by {}", approver)}</small> }
                                                            } else {
                                                                html! {}
                                                            }
                                                        }
                                                    </td>
                                                    <td class="py-3">
                                                        <div class="dropdown">
                                                            <button class="btn btn-sm btn-outline-secondary" data-bs-toggle="dropdown">
                                                                <i class="bi bi-three-dots-vertical"></i>
                                                            </button>
                                                            <ul class="dropdown-menu">
                                                                <li><a class="dropdown-item" href="#" onclick={
                                                                    let state = state.clone();
                                                                    let expense_id = entry.id.clone();
                                                                    Callback::from(move |e: web_sys::MouseEvent| {
                                                                        e.prevent_default();
                                                                        e.stop_propagation();
                                                                        let mut new_state = (*state).clone();
                                                                        new_state.show_expense_detail = true;
                                                                        new_state.selected_expense_id = Some(expense_id.clone());
                                                                        state.set(new_state);
                                                                    })
                                                                }><i class="bi bi-eye me-2"></i>{"View Details"}</a></li>
                                                                <li><a class="dropdown-item" href="#" onclick={
                                                                    let state = state.clone();
                                                                    let expense_id = entry.id.clone();
                                                                    Callback::from(move |e: web_sys::MouseEvent| {
                                                                        e.prevent_default();
                                                                        e.stop_propagation();
                                                                        let mut new_state = (*state).clone();
                                                                        new_state.show_transaction_form = true;
                                                                        new_state.transaction_form.expense_id = Some(expense_id.clone());
                                                                        state.set(new_state);
                                                                    })
                                                                }><i class="bi bi-credit-card me-2"></i>{"Record Payment"}</a></li>
                                                                <li><a class="dropdown-item" href="#" onclick={
                                                                    Callback::from(move |e: web_sys::MouseEvent| {
                                                                        e.prevent_default();
                                                                        e.stop_propagation();
                                                                        web_sys::window()
                                                                            .unwrap()
                                                                            .alert_with_message("Edit expense feature coming soon!")
                                                                            .unwrap();
                                                                    })
                                                                }><i class="bi bi-pencil me-2"></i>{"Edit"}</a></li>
                                                                <li><a class="dropdown-item" href="#" onclick={
                                                                    let receipt_url = entry.receipt_url.clone();
                                                                    Callback::from(move |e: web_sys::MouseEvent| {
                                                                        e.prevent_default();
                                                                        e.stop_propagation();
                                                                        if let Some(url) = &receipt_url {
                                                                            web_sys::window().unwrap().open_with_url(url).unwrap();
                                                                        } else {
                                                                            web_sys::window()
                                                                                .unwrap()
                                                                                .alert_with_message("No receipt available for this expense")
                                                                                .unwrap();
                                                                        }
                                                                    })
                                                                }><i class="bi bi-file-earmark me-2"></i>{"View Receipt"}</a></li>
                                                                <li><a class="dropdown-item" href="#" onclick={
                                                                    let state = state.clone();
                                                                    let expense_id = entry.id.clone();
                                                                    Callback::from(move |e: web_sys::MouseEvent| {
                                                                        e.prevent_default();
                                                                        e.stop_propagation();
                                                                        let mut new_state = (*state).clone();
                                                                        // Find and update the expense approval status
                                                                        if let Some(expense) = new_state.expense_entries.iter_mut().find(|e| e.id == expense_id) {
                                                                            expense.approval_status = ApprovalStatus::Approved;
                                                                            expense.approved_by = Some("Current User".to_string());
                                                                        }
                                                                        state.set(new_state);
                                                                    })
                                                                }><i class="bi bi-check-circle me-2"></i>{"Approve"}</a></li>
                                                                <li><hr class="dropdown-divider" /></li>
                                                                <li><a class="dropdown-item" href="#" onclick={
                                                                    Callback::from(move |e: web_sys::MouseEvent| {
                                                                        e.prevent_default();
                                                                        e.stop_propagation();
                                                                        web_sys::window()
                                                                            .unwrap()
                                                                            .alert_with_message("Duplicate expense feature coming soon!")
                                                                            .unwrap();
                                                                    })
                                                                }><i class="bi bi-files me-2"></i>{"Duplicate"}</a></li>
                                                                <li><a class="dropdown-item text-danger" href="#" onclick={
                                                                    let state = state.clone();
                                                                    let expense_id = entry.id.clone();
                                                                    Callback::from(move |e: web_sys::MouseEvent| {
                                                                        e.prevent_default();
                                                                        e.stop_propagation();
                                                                        if web_sys::window().unwrap().confirm_with_message("Are you sure you want to delete this expense?").unwrap() {
                                                                            let mut new_state = (*state).clone();
                                                                            new_state.expense_entries.retain(|e| e.id != expense_id);
                                                                            state.set(new_state);
                                                                        }
                                                                    })
                                                                }><i class="bi bi-trash me-2"></i>{"Delete"}</a></li>
                                                            </ul>
                                                        </div>
                                                    </td>
                                                </tr>
                                            }
                                        })}
                                    </tbody>
                                </table>
                            </div>
                        </div>
                    </div>
                </div>
            </div>
        </div>
    }
}