swaitsandClaude Opus 5.5
105fd52694
egui/wgpu app for owners and their accountant: Overview, Cash, Profit, Transactions (with rendered receipts and journal history), Reports (statements with interval columns, comparisons, drill-down), Accounts, Documents, Company, Journal; Ctrl+K palette; back/forward; light/dark. Follows the journal live (~30 ms from write to screen). --demo opens a deterministic demo company, also used for screenshot tests. Engine: ledger-store Snapshot (read-only, incremental, tolerant of a half-written tail); ledger-core analysis (intervals, balance series, P&L by interval, cash flows); ledger-config extracted from ledger-mcp with the full company profile and cash_accounts. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01MtYEaR6M6Ybdhm6X98BWNu
82 lines
2.9 KiB
Rust
82 lines
2.9 KiB
Rust
//! Time series. Numbers computed by hand.
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//!
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//! Cash 1000 and card 2100. Jan 5: owner puts in 5,000. Jan 20: 300 of
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//! software on the card. Feb 3: 1,200 of sales into cash. Feb 10: pay the
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//! card 300. Mar 15: 800 rent from cash.
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use chrono::NaiveDate;
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use ledger_core::analysis::{
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Interval, balance_history, balance_series, flows_by_interval, pnl_by_interval,
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};
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use ledger_core::{AccountType, Currency, Ledger, Money, Side};
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use rust_decimal::Decimal;
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fn d(m: u32, day: u32) -> NaiveDate {
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NaiveDate::from_ymd_opt(2026, m, day).unwrap()
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}
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fn dec(n: i64) -> Decimal {
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Decimal::from(n)
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}
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#[test]
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fn balances_pnl_and_flows_over_time() {
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let mut l = Ledger::new(Currency::USD);
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let mut a = |c: &str, t| l.add_account(c, c, t, None, false).unwrap();
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let cash = a("1000", AccountType::Asset);
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let card = a("2100", AccountType::Liability);
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let equity = a("3000", AccountType::Equity);
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let sales = a("4000", AccountType::Revenue);
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let software = a("6300", AccountType::Expense);
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let rent = a("6600", AccountType::Expense);
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for (date, dr, cr, amt) in [
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(d(1, 5), cash, equity, 5000),
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(d(1, 20), software, card, 300),
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(d(2, 3), cash, sales, 1200),
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(d(2, 10), card, cash, 300),
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(d(3, 15), rent, cash, 800),
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] {
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let e = l.create_entry(date, "x");
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let m = Money::new(dec(amt), Currency::USD);
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l.add_line(e, dr, Side::Debit, m).unwrap();
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l.add_line(e, cr, Side::Credit, m).unwrap();
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l.post_entry(e).unwrap();
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}
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assert_eq!(
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balance_series(&l, &[cash], &[d(1, 1), d(1, 31), d(2, 28), d(3, 31)]),
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[dec(0), dec(5000), dec(5900), dec(5100)]
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);
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// The card is a liability: owed 300, then paid off.
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assert_eq!(
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balance_series(&l, &[card], &[d(1, 31), d(2, 28)]),
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[dec(300), dec(0)]
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);
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assert_eq!(
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balance_history(&l, &[cash]),
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[
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(d(1, 5), dec(5000)),
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(d(2, 3), dec(6200)),
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(d(2, 10), dec(5900)),
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(d(3, 15), dec(5100))
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]
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);
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let pnl = pnl_by_interval(&l, d(1, 1), d(3, 31), Interval::Month).unwrap();
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let nets: Vec<Decimal> = pnl.iter().map(|p| p.net()).collect();
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assert_eq!(nets, [dec(-300), dec(1200), dec(-800)]);
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let flows = flows_by_interval(&l, &[cash], d(1, 1), d(3, 31), Interval::Month);
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let io: Vec<(Decimal, Decimal)> = flows.iter().map(|f| (f.2, f.3)).collect();
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assert_eq!(
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io,
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[
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(dec(5000), dec(0)),
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(dec(1200), dec(300)),
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(dec(0), dec(800))
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]
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);
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// Cash and card together: a card charge is money out when it's made,
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// and paying the card moves nothing out of the pair.
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let both = flows_by_interval(&l, &[cash, card], d(1, 1), d(2, 28), Interval::Month);
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let io: Vec<(Decimal, Decimal)> = both.iter().map(|f| (f.2, f.3)).collect();
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assert_eq!(io, [(dec(5000), dec(300)), (dec(1200), dec(0))]);
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}
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