| 1 | //! Shared, data-only precise monetary display for diagnostic reports. |
| 2 | //! Currency selection and accounting remain authoritative on the host. |
| 3 | |
| 4 | use codewhale_command_contract::types::CommandCurrency; |
| 5 | |
| 6 | #[must_use] |
| 7 | pub fn format_cost_amount_precise(amount: f64, currency: CommandCurrency) -> String { |
| 8 | let symbol = match currency { |
| 9 | CommandCurrency::Usd => "$", |
| 10 | CommandCurrency::Cny => "¥", |
| 11 | }; |
| 12 | if amount == 0.0 { |
| 13 | format!("{symbol}0.0000") |
| 14 | } else if amount > 0.0 && amount < 0.0001 { |
| 15 | format!("<{symbol}0.0001") |
| 16 | } else { |
| 17 | format!("{symbol}{amount:.4}") |
| 18 | } |
| 19 | } |
| 20 |