util.rs
| 1 | //! Formatting + small browser helpers. |
| 2 | |
| 3 | use chrono::{DateTime, Utc}; |
| 4 | |
| 5 | pub fn format_size(bytes: u64) -> String { |
| 6 | const UNITS: [&str; 5] = ["B", "KB", "MB", "GB", "TB"]; |
| 7 | let mut v = bytes as f64; |
| 8 | let mut i = 0; |
| 9 | while v >= 1024.0 && i < UNITS.len() - 1 { |
| 10 | v /= 1024.0; |
| 11 | i += 1; |
| 12 | } |
| 13 | if i == 0 { |
| 14 | format!("{bytes} B") |
| 15 | } else { |
| 16 | format!("{v:.1} {}", UNITS[i]) |
| 17 | } |
| 18 | } |
| 19 | |
| 20 | pub fn format_date(rfc3339: &str) -> String { |
| 21 | match DateTime::parse_from_rfc3339(rfc3339) { |
| 22 | Ok(dt) => dt.with_timezone(&Utc).format("%Y-%m-%d %H:%M").to_string(), |
| 23 | Err(_) => rfc3339.to_string(), |
| 24 | } |
| 25 | } |
| 26 | |
| 27 | pub fn storage_get(key: &str) -> Option<String> { |
| 28 | let w = web_sys::window()?; |
| 29 | let storage_opt = w.local_storage().ok()?; |
| 30 | let storage = storage_opt.as_ref()?; |
| 31 | storage.get_item(key).ok().flatten() |
| 32 | } |
| 33 | |
| 34 | pub fn storage_set(key: &str, value: &str) { |
| 35 | if let Some(s) = web_sys::window().and_then(|w| w.local_storage().ok().flatten()) { |
| 36 | let _ = s.set_item(key, value); |
| 37 | } |
| 38 | } |
| 39 | |
| 40 | #[derive(Clone, Copy, PartialEq, Debug)] |
| 41 | pub enum ViewMode { |
| 42 | Grid, |
| 43 | List, |
| 44 | } |
| 45 | |
| 46 | impl ViewMode { |
| 47 | const KEY: &'static str = "fbng.view"; |
| 48 | |
| 49 | pub fn load() -> Self { |
| 50 | match storage_get(Self::KEY).as_deref() { |
| 51 | Some("list") => ViewMode::List, |
| 52 | _ => ViewMode::Grid, |
| 53 | } |
| 54 | } |
| 55 | |
| 56 | pub fn save(self) { |
| 57 | storage_set(Self::KEY, if self == ViewMode::List { "list" } else { "grid" }); |
| 58 | } |
| 59 | } |
| 60 |