92 lines
3.0 KiB
JavaScript
92 lines
3.0 KiB
JavaScript
import bcfetch from 'bandcamp-fetch';
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import fs from 'fs/promises'; // Using the promise-based version of fs for clean async/await
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const username = 'noschxl';
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async function fetchEntireWishlist() {
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let previousWishlist = [];
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// 1. Try to load the previous wishlist to compare against
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try {
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const fileData = await fs.readFile('wishlist.json', 'utf8');
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previousWishlist = JSON.parse(fileData);
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//console.log(`Loaded ${previousWishlist.length} previous items from wishlist.json for comparison.`);
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} catch (error) {
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if (error.code === 'ENOENT') {
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console.log('No existing wishlist.json found. This must be the first run!');
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} else {
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console.error('Error reading wishlist.json:', error);
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}
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}
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let allWishlistItems = [];
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let currentParams = {
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target: username,
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imageFormat: 'art_app_large'
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};
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let hasMorePages = true;
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let pageCount = 1;
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//console.log(`\nStarting wishlist scrape for user: ${username}...`);
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// 2. Scrape the current wishlist
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while (hasMorePages) {
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//console.log(`Fetching page ${pageCount}...`);
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try {
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const result = await bcfetch.fan.getWishlist(currentParams);
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if (result && result.items) {
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allWishlistItems.push(...result.items);
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}
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if (result.continuation) {
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currentParams.target = result.continuation;
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pageCount++;
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} else {
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hasMorePages = false;
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}
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} catch (error) {
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console.error(`Error fetching page ${pageCount}:`, error);
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break;
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}
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}
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//console.log(`\nDone! Successfully scraped ${allWishlistItems.length} items from your wishlist.`);
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// 3. Compare the old list against the new list
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if (previousWishlist.length > 0) {
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// Create a Set of all the current IDs for fast, easy lookup
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const currentIds = new Set(allWishlistItems.map(item => item.id));
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// Filter the previous list to find items whose IDs are missing from the current scrape
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const missingItems = previousWishlist.filter(item => !currentIds.has(item.id));
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if (missingItems.length > 0) {
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console.log(`\nWARNING: ${missingItems.length} item(s) have disappeared since the last run!`);
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missingItems.forEach(item => {
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console.log(`- ${item.artist.name} : ${item.name}`);
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console.log(` Old URL: ${item.url}\n`);
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});
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// Optional: Save the missing items to a separate file so you don't lose their metadata
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await fs.writeFile('missing_items.json', JSON.stringify(missingItems, null, 2));
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console.log('Saved missing items to missing_items.json');
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} else {
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//console.log('\nAll good! No items have disappeared since your last run.');
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}
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}
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// 4. Overwrite wishlist.json with the new, up-to-date data for the next run
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try {
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await fs.writeFile('wishlist.json', JSON.stringify(allWishlistItems, null, 2));
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//console.log('Successfully updated wishlist.json with current data.');
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} catch (error) {
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console.error('Error writing to wishlist.json:', error);
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}
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}
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fetchEntireWishlist();
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