fix: prevent amount range filter crash

src/lib/components/AmountRangeFilter.svelte

@@ -2,7 +2,6 @@
   import SlidersHorizontalIcon from '@lucide/svelte/icons/sliders-horizontal';
 
   import * as Popover from '$lib/components/ui/popover';
-  import { Slider } from '$lib/components/ui/slider';
   import { formatValue } from '$lib/format';
 
   const LIMIT = 10_000_000_000;
@@ -19,22 +18,16 @@
   } = $props();
 
   let open = $state(false);
-  let localMin = $state(0);
-  let localMax = $state(LIMIT);
+  let localMin = $state(normalizedRange()[0]);
+  let localMax = $state(normalizedRange()[1]);
   const hasFilter = $derived(minAmount !== null || maxAmount !== null);
-  let sliderValue = $state([0, LIMIT]);
+  const minPosition = $derived((localMin / LIMIT) * 100);
+  const maxPosition = $derived((localMax / LIMIT) * 100);
 
-  $effect(() => {
-    localMin = Math.max(0, Math.min(minAmount ?? 0, LIMIT));
-    localMax = Math.max(localMin, Math.min(maxAmount ?? LIMIT, LIMIT));
-    sliderValue = [localMin, localMax];
-  });
-
-  function updateRange(value: number[]) {
-    const [nextMin = 0, nextMax = LIMIT] = [...value].sort((left, right) => left - right);
-    localMin = nextMin;
-    localMax = nextMax;
-    sliderValue = [nextMin, nextMax];
+  function normalizedRange(): [number, number] {
+    const nextMin = Math.max(0, Math.min(minAmount ?? 0, LIMIT));
+    const nextMax = Math.max(nextMin, Math.min(maxAmount ?? LIMIT, LIMIT));
+    return [nextMin, nextMax];
   }
 
   function apply() {
@@ -43,7 +36,12 @@
   }
 </script>
 
-<Popover.Root bind:open>
+<Popover.Root
+  bind:open
+  onOpenChange={(nextOpen) => {
+    if (nextOpen) [localMin, localMax] = normalizedRange();
+  }}
+>
   <Popover.Trigger
     class="border-input bg-background hover:bg-muted focus-visible:border-ring focus-visible:ring-ring/30 inline-flex min-h-11 cursor-pointer items-center gap-1.5 rounded-md border px-3 text-xs font-medium transition-colors focus-visible:ring-1 focus-visible:outline-none sm:min-h-9"
     aria-label="فیلتر بازه مبلغ"
@@ -64,16 +62,39 @@
       <output class="bg-muted rounded-md px-2 py-1">تا {formatValue(localMax)} ریال</output>
     </div>
 
-    <Slider
-      value={sliderValue}
-      onValueChange={updateRange}
-      min={0}
-      max={LIMIT}
-      step={STEP}
-      dir="rtl"
-      class="my-2 h-8"
-      aria-label="بازه مبلغ تراکنش"
-    />
+    <div class="relative my-2 h-8" dir="rtl">
+      <span class="bg-muted absolute top-1/2 right-0 left-0 h-1 -translate-y-1/2 rounded-full">
+        <span
+          class="bg-primary absolute h-full rounded-full"
+          style:right={`${minPosition}%`}
+          style:left={`${100 - maxPosition}%`}
+        ></span>
+      </span>
+      <input
+        type="range"
+        min={0}
+        max={LIMIT}
+        step={STEP}
+        bind:value={localMin}
+        oninput={() => {
+          if (localMin > localMax) localMin = localMax;
+        }}
+        class="amount-range-input absolute inset-0 h-8 w-full"
+        aria-label="کمینه مبلغ تراکنش"
+      />
+      <input
+        type="range"
+        min={0}
+        max={LIMIT}
+        step={STEP}
+        bind:value={localMax}
+        oninput={() => {
+          if (localMax < localMin) localMax = localMin;
+        }}
+        class="amount-range-input absolute inset-0 h-8 w-full"
+        aria-label="بیشینه مبلغ تراکنش"
+      />
+    </div>
 
     <div class="flex gap-2">
       <button
@@ -94,3 +115,57 @@
     </div>
   </Popover.Content>
 </Popover.Root>
+
+<style>
+  .amount-range-input {
+    appearance: none;
+    background: transparent;
+    pointer-events: none;
+  }
+
+  .amount-range-input::-webkit-slider-runnable-track {
+    height: 0.25rem;
+    background: transparent;
+  }
+
+  .amount-range-input::-webkit-slider-thumb {
+    width: 1rem;
+    height: 1rem;
+    margin-top: -0.375rem;
+    appearance: none;
+    border: 2px solid var(--background);
+    border-radius: 9999px;
+    background: var(--primary);
+    box-shadow: 0 1px 2px rgb(0 0 0 / 0.12);
+    cursor: grab;
+    pointer-events: auto;
+  }
+
+  .amount-range-input::-moz-range-track {
+    height: 0.25rem;
+    background: transparent;
+  }
+
+  .amount-range-input::-moz-range-thumb {
+    width: 1rem;
+    height: 1rem;
+    border: 2px solid var(--background);
+    border-radius: 9999px;
+    background: var(--primary);
+    box-shadow: 0 1px 2px rgb(0 0 0 / 0.12);
+    cursor: grab;
+    pointer-events: auto;
+  }
+
+  .amount-range-input:focus-visible {
+    outline: none;
+  }
+
+  .amount-range-input:focus-visible::-webkit-slider-thumb {
+    box-shadow: 0 0 0 3px color-mix(in oklab, var(--ring) 30%, transparent);
+  }
+
+  .amount-range-input:focus-visible::-moz-range-thumb {
+    box-shadow: 0 0 0 3px color-mix(in oklab, var(--ring) 30%, transparent);
+  }
+</style>

src/lib/components/AmountRangeFilter.test.ts

@@ -0,0 +1,25 @@
+import { fireEvent, render, screen } from '@testing-library/svelte';
+import { describe, expect, it, vi } from 'vitest';
+
+import AmountRangeFilter from './AmountRangeFilter.svelte';
+
+describe('AmountRangeFilter', () => {
+  it('moves both amount bounds without resetting or crashing', async () => {
+    const onchange = vi.fn();
+    render(AmountRangeFilter, { minAmount: null, maxAmount: null, onchange });
+
+    await fireEvent.click(screen.getByRole('button', { name: 'فیلتر بازه مبلغ' }));
+
+    const thumbs = await screen.findAllByRole('slider');
+    expect(thumbs).toHaveLength(2);
+
+    await fireEvent.input(thumbs[0], { target: { value: '100000' } });
+    await fireEvent.input(thumbs[1], { target: { value: '9999900000' } });
+
+    expect(screen.getByText('از ۱۰۰٬۰۰۰ ریال')).toBeTruthy();
+    expect(screen.getByText('تا ۹٬۹۹۹٬۹۰۰٬۰۰۰ ریال')).toBeTruthy();
+
+    await fireEvent.click(screen.getByRole('button', { name: 'اعمال بازه' }));
+    expect(onchange).toHaveBeenCalledWith(100_000, 9_999_900_000);
+  });
+});