Initial commit: Crafty Mod Installer

curseforge.js

@@ -0,0 +1,80 @@
+const { CurseForgeClient } = require('curseforge-api');
+const axios = require('axios');
+const fs = require('fs-extra');
+const path = require('path');
+const AdmZip = require('adm-zip');
+
+class CurseForgeHandler {
+    constructor(apiKey) {
+        this.apiKey = apiKey;
+        this.client = new CurseForgeClient(apiKey);
+    }
+
+    async getMod(id) {
+        // identifier can be numeric ID or slug (though the library might need specific search for slug)
+        if (isNaN(id)) {
+            const results = await this.client.searchMods({ slug: id });
+            if (results.data.length === 0) throw new Error('Mod not found');
+            return results.data[0];
+        }
+        return await this.client.getMod(id);
+    }
+
+    async getFiles(id) {
+        const results = await this.client.getModFiles(id);
+        return results.data;
+    }
+
+    async downloadFile(url, targetPath) {
+        const response = await axios({
+            url,
+            method: 'GET',
+            responseType: 'stream',
+            headers: { 'x-api-key': this.apiKey }
+        });
+        const writer = fs.createWriteStream(targetPath);
+        response.data.pipe(writer);
+        return new Promise((resolve, reject) => {
+            writer.on('finish', resolve);
+            writer.on('error', reject);
+        });
+    }
+
+    async installModpack(modId, fileId, targetDir) {
+        console.log(`Downloading CurseForge pack (Mod: ${modId}, File: ${fileId})...`);
+        
+        const file = await this.client.getModFile(modId, fileId);
+        if (!file.downloadUrl) throw new Error('Download URL not found for this file.');
+        
+        const tempPath = path.join(process.cwd(), 'temp_pack.zip');
+        await this.downloadFile(file.downloadUrl, tempPath);
+
+        const zip = new AdmZip(tempPath);
+        const manifestEntry = zip.getEntry('manifest.json');
+        if (!manifestEntry) throw new Error('Invalid CurseForge pack: missing manifest.json');
+
+        const manifest = JSON.parse(zip.readAsText(manifestEntry));
+        const modsDir = path.join(targetDir, 'mods');
+        await fs.ensureDir(modsDir);
+
+        console.log(`Downloading ${manifest.files.length} mods from CurseForge...`);
+        for (const fileInfo of manifest.files) {
+            const modFile = await this.client.getModFile(fileInfo.projectID, fileInfo.fileID);
+            const destPath = path.join(modsDir, modFile.fileName);
+            console.log(`  Downloading ${modFile.fileName}...`);
+            await this.downloadFile(modFile.downloadUrl, destPath);
+        }
+
+        // Handle overrides
+        const overridesEntry = zip.getEntry('overrides/');
+        if (overridesEntry) {
+            console.log('Applying overrides...');
+            zip.extractAllTo(targetDir, true);
+        }
+        
+        await fs.remove(tempPath);
+        console.log('CurseForge installation complete!');
+    }
+}
+
+module.exports = CurseForgeHandler;