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import * as URI from 'uri-js';
import FileSaver from 'file-saver';
import iziToast from 'izitoast';
import Papa from 'papaparse';
import r from '@hat-open/renderer';
import * as u from '@hat-open/util';
import * as states from './states';
const calculateUrl = URI.resolve(window.location.href, './calculate');
const generateOutputUrl = URI.resolve(window.location.href, './generate_output');
let panelCounter = 0;
let itemCounter = 0;
export async function calculate() {
try {
const method = r.get('form', 'method');
const params = createCalculateParams();
const res = await fetch(`${calculateUrl}?method=${method}`, {
method: 'POST',
headers: {'Content-Type': 'application/json'},
body: JSON.stringify(params)
});
const result = await res.json();
r.change(u.pipe(
u.set('result', result),
u.set('selected', states.main.selected)
));
if (!result)
throw 'Could not resolve calculation';
showNotification('success', 'New calculation available');
} catch (e) {
showNotification('error', e);
}
}
export async function generateOutput() {
try {
const result = r.get('result');
const res = await fetch(`${generateOutputUrl}?output_type=pdf`, {
method: 'POST',
headers: {'Content-Type': 'application/json'},
body: JSON.stringify(result)
});
const blob = await res.blob();
FileSaver.saveAs(blob, 'output.pdf');
} catch (e) {
showNotification('error', e);
}
}
export async function csvImportPanels() {
const panels = await csvImport({
name: String,
quantity: u.strictParseInt,
width: u.strictParseFloat,
height: u.strictParseFloat
});
r.change(['form', 'panels'], x => x.concat(panels));
}
export function csvExportPanels() {
const panels = r.get('form', 'panels');
const csvData = Papa.unparse(panels);
const blob = new Blob([csvData], {type: 'text/csv'});
FileSaver.saveAs(blob, 'panels.csv');
}
export async function csvImportItems() {
const items = await csvImport({
name: String,
quantity: u.strictParseInt,
width: u.strictParseFloat,
height: u.strictParseFloat,
can_rotate: u.equals('true')
});
r.change(['form', 'items'], x => x.concat(items));
}
export function csvExportItems() {
const items = r.get('form', 'items');
const csvData = Papa.unparse(items);
const blob = new Blob([csvData], {type: 'text/csv'});
FileSaver.saveAs(blob, 'items.csv');
}
export function addPanel() {
panelCounter += 1;
const panel = u.set('name', `Panel${panelCounter}`, states.panel);
r.change(['form', 'panels'], u.append(panel));
}
export function addItem() {
itemCounter += 1;
const item = u.set('name', `Item${itemCounter}`, states.item);
r.change(['form', 'items'], u.append(item));
}
function createCalculateParams() {
const cutWidth = u.strictParseFloat(r.get('form', 'cut_width'));
if (cutWidth < 0)
throw 'Invalid cut width';
const panels = {};
for (const panel of r.get('form', 'panels')) {
if (!panel.name)
throw 'Invalid panel name';
if (panel.quantity < 1)
throw 'Invalid quantity for panel ' + panel.name;
if (panel.width <= 0)
throw 'Invalid width for panel ' + panel.name;
if (panel.height <= 0)
throw 'Invalid height for panel ' + panel.name;
for (let i = 1; i <= panel.quantity; ++i) {
const name = panel.name + ' ' + String(i);
if (name in panels)
throw 'Duplicate panel name ' + name;
panels[name] = {width: panel.width, height: panel.height};
}
}
if (u.equals(panels, {}))
throw 'No panels defined';
const items = {};
for (const item of r.get('form', 'items')) {
if (!item.name)
throw 'Invalid item name';
if (item.quantity < 1)
throw 'Invalid quantity for item ' + item.name;
if (item.width <= 0)
throw 'Invalid width for item ' + item.name;
if (item.height <= 0)
throw 'Invalid height for item ' + item.name;
for (let i = 1; i <= item.quantity; ++i) {
const name = item.name + ' ' + String(i);
if (name in items) {
throw 'Duplicate item name ' + name;
}
items[name] = {
width: item.width,
height: item.width,
can_rotate: item.can_rotate
};
}
}
if (u.equals(items, {}))
throw 'No items defined';
return {
cut_width: cutWidth,
panels: panels,
items: items
};
}
function showNotification(type, message) {
iziToast[type]({message: message});
}
async function csvImport(header) {
const file = await loadFile('.csv');
if (!file)
return [];
const data = await new Promise(resolve => {
Papa.parse(file, {
header: true,
complete: result => resolve(result.data)
});
});
const result = [];
for (const i of data) {
let element = {};
for (const [k, v] of Object.entries(header)) {
if (!(k in i)) {
element = null;
break;
}
element[k] = v(i[k]);
}
if (element)
result.push(element);
}
return result;
}
async function loadFile(ext) {
const el = document.createElement('input');
el.style = 'display: none';
el.type = 'file';
el.accept = ext;
document.body.appendChild(el);
const promise = new Promise(resolve => {
const listener = evt => {
resolve(u.get(['files', 0], evt.target));
};
el.addEventListener('change', listener);
// TODO blur not fired on close???
el.addEventListener('blur', listener);
el.click();
});
try {
return await promise;
} finally {
document.body.removeChild(el);
}
}
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