image processing lambda

lambdas/imageProcessor/queries.js

@@ -0,0 +1,80 @@
+const { db } = require("../shared");
+
+/**
+ * Save image metadata to the database.
+ * Uses UPSERT pattern to handle re-uploads.
+ *
+ * @param {string} s3Key - Final S3 key (without staging/ prefix)
+ * @param {Object} metadata - Extracted metadata
+ * @returns {Promise<string>} The inserted/updated record ID
+ */
+async function saveImageMetadata(s3Key, metadata) {
+  const query = `
+    INSERT INTO "ImageMetadata" (
+      id, "s3Key", latitude, longitude,
+      "cameraMake", "cameraModel", "cameraSoftware",
+      "dateTaken", width, height, orientation, "fileSize",
+      "processingStatus", "createdAt", "updatedAt"
+    ) VALUES (
+      gen_random_uuid(), $1, $2, $3, $4, $5, $6, $7, $8, $9, $10, $11, $12, NOW(), NOW()
+    )
+    ON CONFLICT ("s3Key") DO UPDATE SET
+      latitude = EXCLUDED.latitude,
+      longitude = EXCLUDED.longitude,
+      "cameraMake" = EXCLUDED."cameraMake",
+      "cameraModel" = EXCLUDED."cameraModel",
+      "cameraSoftware" = EXCLUDED."cameraSoftware",
+      "dateTaken" = EXCLUDED."dateTaken",
+      width = EXCLUDED.width,
+      height = EXCLUDED.height,
+      orientation = EXCLUDED.orientation,
+      "fileSize" = EXCLUDED."fileSize",
+      "processingStatus" = EXCLUDED."processingStatus",
+      "updatedAt" = NOW()
+    RETURNING id
+  `;
+
+  const values = [
+    s3Key,
+    metadata.latitude,
+    metadata.longitude,
+    metadata.cameraMake,
+    metadata.cameraModel,
+    metadata.cameraSoftware,
+    metadata.dateTaken,
+    metadata.width,
+    metadata.height,
+    metadata.orientation,
+    metadata.fileSize,
+    "processing",
+  ];
+
+  const result = await db.query(query, values);
+  return result.rows[0].id;
+}
+
+/**
+ * Update processing status after completion.
+ *
+ * @param {string} s3Key - S3 key
+ * @param {string} status - 'completed' or 'failed'
+ * @param {string} errorMessage - Error message if failed
+ */
+async function updateProcessingStatus(s3Key, status, errorMessage = null) {
+  const query = `
+    UPDATE "ImageMetadata"
+    SET
+      "processingStatus" = $2::"enum_ImageMetadata_processingStatus",
+      "processedAt" = CASE WHEN $2 = 'completed' THEN NOW() ELSE "processedAt" END,
+      "errorMessage" = $3,
+      "updatedAt" = NOW()
+    WHERE "s3Key" = $1
+  `;
+
+  await db.query(query, [s3Key, status, errorMessage]);
+}
+
+module.exports = {
+  saveImageMetadata,
+  updateProcessingStatus,
+};