initial commit

src/index.ts

@@ -0,0 +1,81 @@
+/**
+ * MetaMesh Plugin: still-extractor
+ *
+ * ============================================================================
+ * PLUGIN FILE ACCESS ARCHITECTURE - WebDAV
+ * ============================================================================
+ *
+ * File access via WebDAV, resolved per request from the calling meta-core's
+ *   /urls -> webdavUrlInternal (WEBDAV_URL overrides):
+ *   - Read media files:  GET  /webdav/watch/...  or /webdav/test/...
+ *   - Write output:      PUT  /webdav/plugin/still-extractor/...
+ *   - Temp:              Local /cache/temp mount (frame written before WebDAV upload)
+ *
+ * SECURITY: Plugins use WebDAV for all file access. No /files mount needed.
+ *
+ * ============================================================================
+ */
+
+import Fastify from 'fastify';
+import type { HealthResponse, ProcessRequest, ProcessResponse, CallbackPayload, ConfigureRequest, ConfigureResponse } from './types.js';
+import { manifest, process as processFile, configure } from './plugin.js';
+
+const app = Fastify({ logger: true });
+let ready = false;
+
+app.get('/health', async (): Promise<HealthResponse> => ({
+    status: 'healthy',
+    ready,
+    version: manifest.version
+}));
+
+app.get('/manifest', async () => manifest);
+
+app.post<{ Body: ConfigureRequest }>('/configure', async (request): Promise<ConfigureResponse> => {
+    try {
+        configure(request.body.config || {});
+        console.log(`[${manifest.id}] Configuration updated`);
+        return { status: 'ok' };
+    } catch (error) {
+        console.error(`[${manifest.id}] Configuration error:`, error);
+        return { status: 'error', error: error instanceof Error ? error.message : String(error) };
+    }
+});
+
+app.post<{ Body: ProcessRequest }>('/process', async (request, reply) => {
+    const { taskId, cid, filePath, callbackUrl, metaCoreUrl } = request.body;
+
+    if (!taskId || !cid || !filePath || !callbackUrl || !metaCoreUrl) {
+        return reply.send({ status: 'rejected', error: 'Missing required fields' } as ProcessResponse);
+    }
+
+    // Process asynchronously and send callback when done
+    processFile(request.body, async (payload: CallbackPayload) => {
+        try {
+            await fetch(callbackUrl, {
+                method: 'POST',
+                headers: { 'Content-Type': 'application/json' },
+                body: JSON.stringify(payload)
+            });
+        } catch (error) {
+            console.error(`[${manifest.id}] Callback error:`, error);
+        }
+    }).catch((error) => {
+        console.error(`[${manifest.id}] Process error:`, error);
+    });
+
+    return reply.send({ status: 'accepted' } as ProcessResponse);
+});
+
+const port = parseInt(process.env.PORT || '8080', 10);
+
+app.listen({ port, host: '0.0.0.0' }).then(() => {
+    ready = true;
+    console.log(`[${manifest.id}] Listening on port ${port}`);
+});
+
+process.on('SIGTERM', async () => {
+    ready = false;
+    await app.close();
+    process.exit(0);
+});