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use std::collections::HashMap;
use chrono::{Datelike, Local, NaiveDate};
use crate::model::Transaction;
use crate::db::{get_recent_transactions_filtered, get_spending_by_category_filtered,
get_income_vs_expenses_filtered, get_budget_status, load_portfolios};
use crate::investment::Portfolio;
use super::event::{Event, EventHandler};
use super::ui;
use crossterm::event::KeyCode;
use super::CrosstermTerminal;
use ratatui::widgets::ListState;
#[derive(Debug, Clone, PartialEq)]
pub enum View {
Dashboard,
Transactions,
Budgets,
Investments,
}
#[derive(Debug, Clone)]
pub struct TimeRange {
pub start: Option<String>,
pub end: Option<String>,
pub label: String,
}
impl TimeRange {
pub fn current_month() -> Self {
let now = Local::now();
let start = NaiveDate::from_ymd_opt(now.year(), now.month(), 1)
.unwrap()
.format("%Y-%m-%d")
.to_string();
Self {
start: Some(start),
end: None,
label: "This Month".to_string(),
}
}
pub fn last_30_days() -> Self {
let end = Local::now().naive_local().date();
let start = end - chrono::Duration::days(30);
Self {
start: Some(start.format("%Y-%m-%d").to_string()),
end: Some(end.format("%Y-%m-%d").to_string()),
label: "Last 30 Days".to_string(),
}
}
}
pub struct App {
pub current_view: View,
pub time_range: TimeRange,
pub transactions: Vec<Transaction>,
pub spending_by_category: HashMap<String, f64>,
pub income: f64,
pub expenses: f64,
pub budgets: Vec<(String, f64, f64, f64)>, // category, budget, spent, remaining
pub portfolios: Vec<Portfolio>,
pub selected_transaction_index: usize,
pub search_query: String,
pub show_help: bool,
pub net_worth: f64,
pub cash_balance: f64,
pub investment_balance: f64,
pub transaction_list_state: ListState,
}
impl App {
pub async fn new() -> anyhow::Result<Self> {
let time_range = TimeRange::current_month();
let mut list_state = ListState::default();
list_state.select(Some(0));
let mut app = Self {
current_view: View::Dashboard,
time_range: time_range.clone(),
transactions: Vec::new(),
spending_by_category: HashMap::new(),
income: 0.0,
expenses: 0.0,
budgets: Vec::new(),
portfolios: Vec::new(),
selected_transaction_index: 0,
search_query: String::new(),
show_help: false,
net_worth: 0.0,
cash_balance: 0.0,
investment_balance: 0.0,
transaction_list_state: list_state,
};
app.refresh_data().await?;
Ok(app)
}
pub async fn refresh_data(&mut self) -> anyhow::Result<()> {
// Load ALL transactions (no date filter for transaction view)
self.transactions = get_recent_transactions_filtered(
100000, // Load up to 100k transactions
None, // No start date filter
None // No end date filter
)?;
// Load spending by category
self.spending_by_category = get_spending_by_category_filtered(
self.time_range.start.as_deref(),
self.time_range.end.as_deref()
)?;
// Load income vs expenses
let (income, expenses) = get_income_vs_expenses_filtered(
self.time_range.start.as_deref(),
self.time_range.end.as_deref()
)?;
self.income = income;
self.expenses = expenses;
// Load budgets
self.budgets = get_budget_status()?;
// Load investment data
self.portfolios = load_portfolios()?;
// Calculate net worth
// TODO: This is a simplified calculation - actual cash balance would need
// to track running balance from all transactions, not just current period
self.cash_balance = income - expenses; // Simplified estimate
self.investment_balance = self.portfolios.iter()
.map(|p| p.total_market_value)
.sum();
self.net_worth = self.cash_balance + self.investment_balance;
Ok(())
}
pub async fn run(&mut self, terminal: &mut CrosstermTerminal) -> anyhow::Result<()> {
let event_handler = EventHandler::new(250);
loop {
terminal.draw(|f| ui::draw(f, self))?;
match event_handler.next()? {
Event::Key(key_event) => {
match key_event.code {
KeyCode::Char('q') => break,
KeyCode::Tab => self.next_view(),
KeyCode::BackTab => self.previous_view(),
KeyCode::Char('t') => self.current_view = View::Transactions,
KeyCode::Char('d') => self.current_view = View::Dashboard,
KeyCode::Char('b') => self.current_view = View::Budgets,
KeyCode::Char('i') => self.current_view = View::Investments,
KeyCode::Char('r') => self.refresh_data().await?,
KeyCode::Char('?') => self.show_help = !self.show_help,
KeyCode::Up | KeyCode::Char('k') => self.move_selection_up(),
KeyCode::Down | KeyCode::Char('j') => self.move_selection_down(),
KeyCode::Char('/') => {
// Start search mode
self.search_query.clear();
}
_ => {}
}
}
Event::Tick => {}
}
}
Ok(())
}
fn next_view(&mut self) {
self.current_view = match self.current_view {
View::Dashboard => View::Transactions,
View::Transactions => View::Budgets,
View::Budgets => View::Investments,
View::Investments => View::Dashboard,
};
}
fn previous_view(&mut self) {
self.current_view = match self.current_view {
View::Dashboard => View::Investments,
View::Transactions => View::Dashboard,
View::Budgets => View::Transactions,
View::Investments => View::Budgets,
};
}
fn move_selection_up(&mut self) {
if self.current_view == View::Transactions && self.selected_transaction_index > 0 {
self.selected_transaction_index -= 1;
self.transaction_list_state.select(Some(self.selected_transaction_index));
}
}
fn move_selection_down(&mut self) {
if self.current_view == View::Transactions
&& self.selected_transaction_index < self.transactions.len().saturating_sub(1) {
self.selected_transaction_index += 1;
self.transaction_list_state.select(Some(self.selected_transaction_index));
}
}
}
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