feat(admin): implement DataTableToolbar component with Storybook stories #215

[ayseturmus]

Pull Request

📄 Summary

This PR extends DataTableToolbar with loading state support, improved filter behavior, and i18n-ready text handling.
The implementation follows AGENTS.md (composition-first, accessibility, Svelte 5 runes).

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✨ Key Changes

• Loading state

  • loading prop with Spinner
  • loadingAriaLabel for screen readers

• Filter improvements

  • filterCloseOnSelect prop
  • noFilterText externalized for i18n
  • Filter rendering and layout fixes (filterMinWidth)

• Storybook

  • Tag Filter story added
  • Playground and core variants updated

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🧩 Affected Module(s)

• Source Code
• Documentation
• CI / Infra

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🔗 Related Issues

Closes #215

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✅ Checklist

• Conventional PR title (feat)
• Static analysis & build passed
• No hardcoded strings (i18n-ready)
• Library components only
• Storybook coverage added
• No unrelated changes

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💬 Notes

• Uses Svelte 5 runes ($props, $state, $derived)
• Fully typed TypeScript props
• Static DaisyUI classes only
• Exported via src/lib/index.ts

[husamettinarabaci]

Request Changes: Component Composition Violation

Thank you for the comprehensive implementation! The PR is high-quality overall, but there's one critical component composition issue that needs to be addressed before merging.

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❌ Issue: Raw HTML Input Instead of Library Component

Location: DataTableToolbar.svelte:500-519

The component currently uses a raw HTML <input> element instead of the library's Input component:

<!-- Current Implementation - INCORRECT -->
<input
  type="search"
  bind:value={searchValue}
  placeholder={searchPlaceholder}
  disabled={disabled || loading}
  aria-label={searchAriaLabel}
  oninput={handleSearchInput}
  onkeydown={handleSearchKeydown}  // ❌ This is why raw HTML was used
  class={[...].join(' ')}
/>

Reason Given: Input component doesn't support onkeydown prop.

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🎯 Required Changes

Per AGENTS.md Component Composition Rules (lines 196-217, 373-413):

⚠️ CRITICAL PRIORITY RULE: Library components MUST be used unless TECHNICALLY IMPOSSIBLE.

Decision Tree Step 3: Can the library component be extended/modified to support your needs?

• YES → Modify the component first. Do NOT bypass it. STOP HERE.

Solution: Extend the Input Component

1. Add onkeydown prop to Input component:

// In Input.svelte Props interface
interface Props {
  // ... existing props
  onkeydown?: (event: KeyboardEvent) => void;
}

// In the input element
<input 
  onkeydown={onkeydown}
  {...otherProps}
/>

2. Update DataTableToolbar to use Input component:

<Input
  type="search"
  bind:value={searchValue}
  placeholder={searchPlaceholder}
  disabled={disabled || loading}
  ariaLabel={searchAriaLabel}
  oninput={handleSearchInput}
  onkeydown={handleSearchKeydown}  // ✅ Now supported
  size={searchSize}
  class="w-full"
/>

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📚 Why This Matters

From AGENTS.md (lines 274-283):

Example Scenario:
If you add a loading state to the Button component, and all composite components use <Button> internally, every button across the library automatically gets the loading feature.

If you use raw HTML:

• You have to manually update every component
• Features become inconsistent
• Maintenance becomes a nightmare
• Bugs multiply across the codebase

By using the Input component:

• Future Input enhancements (validation, icons, error states) automatically propagate
• Maintains consistency across the library
• Follows the established architecture pattern

---

✅ Everything Else Looks Great!

The rest of the implementation is excellent:

• ✅ All other components properly use library primitives (Button, Text, Badge, etc.)
• ✅ No hardcoded strings (i18n-ready)
• ✅ Comprehensive Storybook coverage (11 stories)
• ✅ TypeScript strictly typed
• ✅ Accessibility best practices
• ✅ DaisyUI static classes only
• ✅ Proper documentation

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📋 Action Items

• Add onkeydown prop to Input.svelte component
• Replace raw HTML <input> with <Input> component in DataTableToolbar.svelte
• Remove the raw HTML justification comment (lines 492-499)
• Verify all functionality still works (Enter key search)
• Update if Input component changes affect other files

Once these changes are made, this PR will be ready to merge! 🚀

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Reference: AGENTS.md - Component Composition & Reusability Principle (lines 196-479)

.

[husamettinarabaci]

LGTM