titaniumtown/YTBN-Graphing-Software
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make caching system more robust

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This commit is contained in:
Simon Gardling
2022-05-11 18:33:06 -04:00
parent cd930966b9
commit 8d4a315a96
7 changed files with 60 additions and 16 deletions
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25
src/math_app.rs
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@@ -116,8 +116,6 @@ impl MathApp {
cfg_if::cfg_if! {
if #[cfg(target_arch = "wasm32")] {
use wasm_bindgen::JsCast;
use web_sys::{HtmlElement, Window};
if let Some(web_info) = &cc.integration_info.web_info {
tracing::info!("Web Info: {:?}", web_info);
}
@@ -132,17 +130,25 @@ impl MathApp {
.dyn_into::<web_sys::HtmlElement>()
.unwrap();
fn update_loading(loading_element: &HtmlElement, add: i32) {
fn update_loading(loading_element: &web_sys::HtmlElement, add: i32) {
let value =
unsafe { loading_element.get_attribute("value").unwrap_unchecked().parse::<i32>().unwrap_unchecked() };
loading_element.set_attribute("value", &(add + value).to_string()).unwrap();
}
const COMPRESSED_NAME: &str = const_format::formatc!("YTBN-{}-DECOMPRESSED", COMMIT);
const DATA_NAME: &str = "YTBN-DECOMPRESSED";
fn get_storage_decompressed() -> Option<Vec<u8>> {
if let Ok(Some(data)) = web_sys::window().expect("Could not get web_sys window").local_storage().unwrap().unwrap().get_item(COMPRESSED_NAME) {
tracing::info!("Read cached data");
Some(base64::decode(data).expect("unable to read data"))
if let Ok(Some(data)) = web_sys::window().expect("Could not get web_sys window").local_storage().unwrap().unwrap().get_item("YTBN-DECOMPRESSED") {
let (commit, cached_data) = crate::misc::storage_read(data);
if commit == build::SHORT_COMMIT {
tracing::info!("Read cached data");
return Some(cached_data.to_vec());
} else {
// is invalid
None
}
} else {
None
}
@@ -151,8 +157,9 @@ impl MathApp {
fn set_storage_decompressed(data: &Vec<u8>) {
if let Ok(Some(local_storage)) = web_sys::window().expect("Could not get web_sys window").local_storage() {
tracing::info!("Setting cached data");
local_storage.set_item(COMPRESSED_NAME, &base64::encode(data));
let saved_data = &crate::misc::storage_create(&build::SHORT_COMMIT.chars().map(|c| c as u8).collect::<Vec<u8>>(), data.as_slice());
tracing::info!("Data has length of {}", saved_data.len());
local_storage.set_item("YTBN-DECOMPRESSED", saved_data).expect("failed to set local storage cache");
} else {
panic!("unable to get local storage")
}