Script to import the exported data to pom.moe

pom-moe-json-import.js

/* Sources:
- https://learn.microsoft.com/en-us/microsoft-edge/devtools-guide-chromium/storage/indexeddb
- https://developer.mozilla.org/en-US/docs/Web/API/IndexedDB_API/Using_IndexedDB?retiredLocale=de#adding_retrieving_and_removing_data
*/

var fileInput = document.createElement('input');
fileInput.type = 'file';

fileInput.addEventListener('change', (e) => {
    const reader = new FileReader();

    reader.onload = async (e) => {
        var data = JSON.parse(e.target.result);

        console.log('Open Database...');
        var connection = indexedDB.open('pom_default');

        connection.onsuccess = (e) => {
            var db = e.target.result;
            var transaction = db.transaction(['achievements', 'bannerSummary', 'beginner', 'character', 'items', 'lightcone', 'standard'], 'readwrite');

            for (let [table, vals] of Object.entries(data.default)) {
                var objectStore = transaction.objectStore(table);

                console.log('Deleting previous data...');
                objectStore.clear();

                for (let value of vals) {
                    objectStore.add(value);
                }
            }

            transaction.onsuccess = () => {
                console.log('Import finished successfully!');
            }

            transaction.onerror = (e) => {
                console.log('Import failed!');
            console.error('Errorcode: ' + e.target.errorCode);
            }
        }

        connection.onerror = (e) => {
            console.log('Database can\'t be opened!');
            console.error('Errorcode: ' + e.target.errorCode);
        }
    }

    reader.readAsText(e.target.files[0]);
});

console.log('Open data file...')
fileInput.click();

A script to re-import the JSON data that was exported from https://pom.moe.

Attention:
The script deletes all previous data stored in the browser database (IndexedDB). If you already have data on the website, export it beforehand!

Disclaimer:
Not official. There could also be errors in the script, but there were no problems in my tests. If you have any problems, please report them.