feat: manage saved thumbnail plans and select plans for tasks

2026-10-23 14:47:27 +08:00
parent d94031eb50
commit 7178235022
17 changed files with 1736 additions and 37 deletions
@@ -17,7 +17,15 @@ MAX_IMAGE_PIXELS = 25_000_000
 Image.MAX_IMAGE_PIXELS = MAX_IMAGE_PIXELS


-def convert(data, fit="contain", profile="color", *, size=(1200, 1600)):
+def convert(
+    data,
+    fit="contain",
+    profile="color",
+    *,
+    size=(1200, 1600),
+    centering=(0.5, 0.5),
+    quality=93,
+):
    try:
        with Image.open(BytesIO(data)) as source:
            if source.format not in {"JPEG", "PNG", "WEBP"}:
@@ -33,7 +41,7 @@ def convert(data, fit="contain", profile="color", *, size=(1200, 1600)):
                    img, size, method=Image.Resampling.LANCZOS, color="white"
                )
            else:
-                center = (0.5, 0.5)
+                center = centering
                if fit == "smart":
                    # Lightweight edge saliency: slide an aspect-correct window
                    # over a thumbnail; retain the region with most detail.
@@ -65,7 +73,7 @@ def convert(data, fit="contain", profile="color", *, size=(1200, 1600)):
            if profile == "grayscale":
                result = ImageOps.grayscale(result).convert("RGB")
            out = BytesIO()
-            result.save(out, "JPEG", quality=93, optimize=True)
+            result.save(out, "JPEG", quality=quality, optimize=True)
            return out.getvalue()
    except (OSError, ValueError, Image.DecompressionBombError):
        raise FlowError(E.INVALID_REQUEST, "Unsupported or invalid image") from None