import { eq } from "drizzle-orm";
import { db } from "@/lib/db/client";
import { devices, type DeviceCapabilities } from "@/lib/db/schema";

export async function listDevices() {
  return db.select().from(devices).orderBy(devices.lastConnectedAt);
}

export async function getDevice(id: number) {
  const [row] = await db.select().from(devices).where(eq(devices.id, id));
  return row;
}

/** Upserts by advertised BLE name - the only stable-ish identity Web Bluetooth exposes. */
export async function upsertDeviceByBleName(input: {
  bleName: string;
  deviceClass?: string | null;
  capabilities?: DeviceCapabilities;
}): Promise<typeof devices.$inferSelect> {
  const now = Date.now();
  const [existing] = await db.select().from(devices).where(eq(devices.bleName, input.bleName));

  if (existing) {
    const [updated] = await db
      .update(devices)
      .set({
        lastConnectedAt: now,
        deviceClass: input.deviceClass ?? existing.deviceClass,
        capabilities: input.capabilities ?? existing.capabilities,
      })
      .where(eq(devices.id, existing.id))
      .returning();
    return updated;
  }

  const [created] = await db
    .insert(devices)
    .values({
      bleName: input.bleName,
      deviceClass: input.deviceClass,
      capabilities: input.capabilities,
      createdAt: now,
      lastConnectedAt: now,
    })
    .returning();
  return created;
}

export async function renameDevice(id: number, displayName: string) {
  const [updated] = await db.update(devices).set({ displayName }).where(eq(devices.id, id)).returning();
  return updated;
}