Files
IronCalc/webapp/app.ironcalc.com/frontend/src/App.tsx
2025-01-19 14:43:30 +01:00

137 lines
3.6 KiB
TypeScript

import "./App.css";
import styled from "@emotion/styled";
import { useEffect, useState } from "react";
import { FileBar } from "./components/FileBar";
import {
get_documentation_model,
get_model,
uploadFile,
} from "./components/rpc";
import {
createNewModel,
deleteSelectedModel,
loadModelFromStorageOrCreate,
saveModelToStorage,
saveSelectedModelInStorage,
selectModelFromStorage,
} from "./components/storage";
// From IronCalc
import { IronCalc, IronCalcIcon, Model, init } from "@ironcalc/workbook";
function App() {
const [model, setModel] = useState<Model | null>(null);
useEffect(() => {
async function start() {
await init();
const queryString = window.location.search;
const urlParams = new URLSearchParams(queryString);
const modelHash = urlParams.get("model");
const exampleFilename = urlParams.get("example");
// If there is a model name ?model=modelHash we try to load it
// if there is not, or the loading failed we load an empty model
if (modelHash) {
// Get a remote model
try {
const model_bytes = await get_model(modelHash);
const importedModel = Model.from_bytes(model_bytes);
localStorage.removeItem("selected");
setModel(importedModel);
} catch (e) {
alert("Model not found, or failed to load");
}
} else if (exampleFilename) {
try {
const model_bytes = await get_documentation_model(exampleFilename);
const importedModel = Model.from_bytes(model_bytes);
localStorage.removeItem("selected");
setModel(importedModel);
} catch (e) {
alert("Example file not found, or failed to load");
}
} else {
// try to load from local storage
const newModel = loadModelFromStorageOrCreate();
setModel(newModel);
}
}
start();
}, []);
if (!model) {
return (
<Loading>
<IronCalcIcon style={{ width: 24, height: 24, marginBottom: 16 }} />
<div>Loading IronCalc</div>
</Loading>
);
}
// We try to save the model every second
setInterval(() => {
const queue = model.flushSendQueue();
if (queue.length !== 1) {
saveSelectedModelInStorage(model);
}
}, 1000);
// We could use context for model, but the problem is that it should initialized to null.
// Passing the property down makes sure it is always defined.
return (
<Wrapper>
<FileBar
model={model}
onModelUpload={async (arrayBuffer: ArrayBuffer, fileName: string) => {
const blob = await uploadFile(arrayBuffer, fileName);
const bytes = new Uint8Array(await blob.arrayBuffer());
const newModel = Model.from_bytes(bytes);
saveModelToStorage(newModel);
setModel(newModel);
}}
newModel={() => {
setModel(createNewModel());
}}
setModel={(uuid: string) => {
const newModel = selectModelFromStorage(uuid);
if (newModel) {
setModel(newModel);
}
}}
onDelete={() => {
const newModel = deleteSelectedModel();
if (newModel) {
setModel(newModel);
}
}}
/>
<IronCalc model={model} />
</Wrapper>
);
}
const Wrapper = styled("div")`
margin: 0px;
padding: 0px;
width: 100%;
height: 100%;
display: flex;
flex-direction: column;
position: absolute;
`;
const Loading = styled("div")`
height: 100%;
display: flex;
flex-direction: column;
align-items: center;
justify-content: center;
font-family: "Inter";
font-size: 14px;
`;
export default App;