always set lane

apps/web/src/functions/create-timeline-item.ts

@@ -1,8 +1,10 @@
 import { db } from "@zendegi/db";
 import { timelineItem } from "@zendegi/db/schema/timeline";
+import { eq } from "drizzle-orm";
 import { createServerFn } from "@tanstack/react-start";
 import { z } from "zod";
 import { authMiddleware } from "@/middleware/auth";
+import { assignLane } from "@/lib/assign-lane";
 
 export const createTimelineItem = createServerFn({ method: "POST" })
   .middleware([authMiddleware])
@@ -19,6 +21,12 @@ export const createTimelineItem = createServerFn({ method: "POST" })
     })
   )
   .handler(async ({ data }) => {
+    const existing = await db.query.timelineItem.findMany({
+      where: eq(timelineItem.timelineGroupId, data.timelineGroupId),
+    });
+
+    const lane = assignLane(existing, data.start, data.end ?? null);
+
     const [newItem] = await db
       .insert(timelineItem)
       .values({
@@ -27,6 +35,7 @@ export const createTimelineItem = createServerFn({ method: "POST" })
         start: data.start,
         end: data.end,
         timelineGroupId: data.timelineGroupId,
+        lane,
       })
       .returning();
 

apps/web/src/functions/update-timeline-item.ts

@@ -0,0 +1,35 @@
+import { db } from "@zendegi/db";
+import { timelineItem } from "@zendegi/db/schema/timeline";
+import { eq } from "drizzle-orm";
+import { createServerFn } from "@tanstack/react-start";
+import { z } from "zod";
+import { authMiddleware } from "@/middleware/auth";
+
+export const updateTimelineItem = createServerFn({ method: "POST" })
+  .middleware([authMiddleware])
+  .inputValidator(
+    z.object({
+      id: z.string().uuid(),
+      start: z.string().transform((s) => new Date(s)),
+      end: z
+        .string()
+        .nullable()
+        .transform((s) => (s ? new Date(s) : null)),
+      timelineGroupId: z.string().uuid(),
+      lane: z.number().int().min(1),
+    })
+  )
+  .handler(async ({ data }) => {
+    const [updated] = await db
+      .update(timelineItem)
+      .set({
+        start: data.start,
+        end: data.end,
+        timelineGroupId: data.timelineGroupId,
+        lane: data.lane,
+      })
+      .where(eq(timelineItem.id, data.id))
+      .returning();
+
+    return updated;
+  });