fix: preserve capture overrides on partial updates

apps/web/app/api/assets/[id]/override-capture-ts/handlers.ts

@@ -11,7 +11,7 @@ const paramsSchema = z.object({
 const bodySchema = z
   .object({
     captureTsUtcOverride: z.string().datetime().nullable().optional(),
-    captureOffsetMinutesOverride: z.coerce.number().int().nullable().optional(),
+    captureOffsetMinutesOverride: z.number().int().nullable().optional(),
   })
   .strict();
 
@@ -48,15 +48,23 @@ export async function handleSetCaptureOverride(input: {
     };
   }
 
-  const db = (input.db ?? getDb()) as DbLike;
   const data = bodyParsed.data;
-  const captureTs = data.captureTsUtcOverride
-    ? new Date(data.captureTsUtcOverride)
+  const hasCaptureTs = "captureTsUtcOverride" in data;
+  const hasCaptureOffset = "captureOffsetMinutesOverride" in data;
+  if (!hasCaptureTs && !hasCaptureOffset) {
+    return { status: 400, body: { error: "invalid_body" } };
+  }
+
+  const db = (input.db ?? getDb()) as DbLike;
+
+  const captureTs = hasCaptureTs
+    ? data.captureTsUtcOverride
+      ? new Date(data.captureTsUtcOverride)
+      : null
+    : null;
+  const captureOffset = hasCaptureOffset
+    ? data.captureOffsetMinutesOverride ?? null
     : null;
-  const captureOffset =
-    data.captureOffsetMinutesOverride !== undefined
-      ? data.captureOffsetMinutesOverride
-      : null;
 
   const rows = await db<
     {
@@ -71,11 +79,21 @@ export async function handleSetCaptureOverride(input: {
       capture_ts_utc_override,
       capture_offset_minutes_override
     )
-    values (${paramsParsed.data.id}, ${captureTs}, ${captureOffset})
+    values (
+      ${paramsParsed.data.id},
+      ${captureTs},
+      ${captureOffset}
+    )
     on conflict (asset_id)
     do update set
-      capture_ts_utc_override = excluded.capture_ts_utc_override,
-      capture_offset_minutes_override = excluded.capture_offset_minutes_override
+      capture_ts_utc_override = case
+        when ${hasCaptureTs} then excluded.capture_ts_utc_override
+        else asset_overrides.capture_ts_utc_override
+      end,
+      capture_offset_minutes_override = case
+        when ${hasCaptureOffset} then excluded.capture_offset_minutes_override
+        else asset_overrides.capture_offset_minutes_override
+      end
     returning asset_id, capture_ts_utc_override, capture_offset_minutes_override, created_at
   `;