BREAKING: postgres + saas

lib/previews/images.ts

@@ -0,0 +1,54 @@
+"use server"
+
+import { fileExists, getUserPreviewsDirectory } from "@/lib/files"
+import { User } from "@prisma/client"
+import fs from "fs/promises"
+import path from "path"
+import sharp from "sharp"
+
+const MAX_WIDTH = 1800
+const MAX_HEIGHT = 1800
+const QUALITY = 90
+
+export async function resizeImage(
+  user: User,
+  origFilePath: string,
+  maxWidth: number = MAX_WIDTH,
+  maxHeight: number = MAX_HEIGHT
+): Promise<{ contentType: string; resizedPath: string }> {
+  try {
+    const userPreviewsDirectory = await getUserPreviewsDirectory(user)
+    await fs.mkdir(userPreviewsDirectory, { recursive: true })
+
+    const basename = path.basename(origFilePath, path.extname(origFilePath))
+    const outputPath = path.join(userPreviewsDirectory, `${basename}.webp`)
+
+    if (await fileExists(outputPath)) {
+      const metadata = await sharp(outputPath).metadata()
+      return {
+        contentType: `image/${metadata.format}`,
+        resizedPath: outputPath,
+      }
+    }
+
+    await sharp(origFilePath)
+      .rotate()
+      .resize(maxWidth, maxHeight, {
+        fit: "inside",
+        withoutEnlargement: true,
+      })
+      .webp({ quality: QUALITY })
+      .toFile(outputPath)
+
+    return {
+      contentType: "image/webp",
+      resizedPath: outputPath,
+    }
+  } catch (error) {
+    console.error("Error resizing image:", error)
+    return {
+      contentType: "image/unknown",
+      resizedPath: origFilePath,
+    }
+  }
+}