3 files changed, 38 insertions, 1 deletions
diff --git a/src/lib/components/sensor.svelte b/src/lib/components/sensor.svelte
index da968a3..e98b740 100644
--- a/src/lib/components/sensor.svelte
+++ b/src/lib/components/sensor.svelte
@@ -1,6 +1,7 @@
 <script>
   import { browser } from '$app/env';
   import { maxSize } from '$lib/config';
+  import { sensor } from '$lib/stores/widgets';
 
   export let x;
   export let y;
@@ -16,7 +17,7 @@
   const fetchItems = function fetchItems( left, top, right, bottom ) {
     clearTimeout(timer);
 		timer = setTimeout(() => {
-      console.log('fetching', left, top, right, bottom);
+      sensor.set({ left, top, right, bottom });
 		}, 50);
   }
 
diff --git a/src/lib/config.js b/src/lib/config.js
index 3d243ed..b450d84 100644
--- a/src/lib/config.js
+++ b/src/lib/config.js
@@ -1,2 +1,7 @@
 export const coordinateLength = 6;
 export const maxSize = Math.pow(16, coordinateLength);
+
+export const supabase = {
+	url: import.meta.env.VITE_SUPABASE_URL,
+	key: import.meta.env.VITE_SUPABASE_KEY
+};
diff --git a/src/lib/stores/widgets.js b/src/lib/stores/widgets.js
new file mode 100644
index 0000000..ff5c53e
--- /dev/null
+++ b/src/lib/stores/widgets.js
@@ -0,0 +1,31 @@
+import { derived, writable } from 'svelte/store';
+import { createClient } from '@supabase/supabase-js';
+import { supabase } from '$lib/config';
+import { maxSize } from '$lib/config';
+
+const client = createClient(supabase.url, supabase.key);
+
+export const sensor = writable({left: 0, top: 0, right: 0, bottom: 0});
+
+const getBoxes = function getBoxes ({left, top, right, bottom}) {
+  return [
+    `box.ov."(${left},${top},${right},${bottom})"`,
+    `box.ov."(${left+maxSize},${top+maxSize},${right+maxSize},${bottom+maxSize})"`,
+    `box.ov."(${left+maxSize},${top},${right+maxSize},${bottom})"`,
+    `box.ov."(${left},${top+maxSize},${right},${bottom+maxSize})"`
+  ]
+};
+
+let ac = null;
+export const widgets = derived(sensor, async function ($sensor, set) {
+
+  const boxes = getBoxes($sensor);
+  ac && ac.abort()
+  ac = new AbortController();
+  const { data } = await client
+    .from('widgets')
+    .select()
+    .or(boxes.join(','))
+    .abortSignal(ac.signal)
+  return set(data);
+});