attune/work-summary/trigger-creation-ui.md

Trigger Creation UI Implementation

Date: 2024-01-XX
Status: Complete

Summary

Implemented a complete trigger creation UI allowing users to create ad-hoc triggers for webhooks and workflow-generated events. The implementation follows the same design patterns established for rules, with label-before-ref ordering and unified pack prefix input styling.

Changes Made

1. New Components

attune/web/src/components/forms/TriggerForm.tsx

• Complete form component for creating/editing triggers
• Label-first approach: Label field positioned before ref field with auto-population
• Unified pack prefix input: Uses .input-with-prefix CSS class for seamless appearance
• Features:
  • Pack selection (required, disabled when editing)
  • Label and reference fields with auto-population
  • Description (optional)
  • Parameter schema (JSON, optional)
  • Output schema (JSON, optional)
  • Webhook enabled toggle
  • Enabled/disabled toggle
  • JSON validation for schemas
  • Error handling and validation

attune/web/src/pages/triggers/TriggerCreatePage.tsx

• Dedicated page for trigger creation
• Informational content explaining:
  • Use case for ad-hoc triggers
  • Webhook functionality
  • Workflow event types
  • Schema validation benefits
• Breadcrumb navigation back to triggers list

2. Updated Components

attune/web/src/pages/triggers/TriggersPage.tsx

• Added "Create Trigger" button with Plus icon in header
• Button positioned next to page title for easy discoverability
• Links to /triggers/create route

attune/web/src/App.tsx

• Added route: /triggers/create → TriggerCreatePage
• Positioned before the dynamic :ref route to ensure proper matching

3. Utility Enhancements

attune/web/src/lib/format-utils.ts

• Enhanced extractLocalRef() to accept optional packRef parameter
  • Allows explicit pack prefix removal
  • Falls back to last-dot extraction
• Added combinePackLocalRef() as alias for combineRefs()
  • Provides consistent naming across form components

attune/web/src/index.css

• Previously added .input-with-prefix component class
• Provides unified styling for pack prefix + input field
• Used by both RuleForm and TriggerForm

4. Configuration Updates

attune/web/tsconfig.app.json

• Added exclusion for test files: src/**/*.test.ts, src/**/*.test.tsx
• Prevents TypeScript compilation errors from test files with missing dependencies

Design Patterns Applied

1. Label-Before-Ref Pattern

// Label field first
<input id="label" value={label} onBlur={autoPopulateRef} />

// Reference field second with auto-population
<div className="input-with-prefix">
  <span className="prefix">{packRef}.</span>
  <input id="ref" value={localRef} />
</div>

2. Unified Pack Prefix Input

The pack prefix and local ref appear as a single, cohesive input field:

• Pack prefix shown with gray background (non-editable)
• Seamless border connection between prefix and input
• Shared error state styling
• Consistent with RuleForm implementation

3. Auto-Population on Blur

When user completes the label field:

1. If ref is empty and not editing → auto-populate from label
2. Convert to lowercase with underscores
3. User can still manually edit the ref field

4. Form Validation

• Required fields: Pack, label, reference
• Reference format: Lowercase letters, numbers, underscores only
• JSON validation: Parameter and output schemas must be valid JSON
• Clear error messages: Field-specific error display

API Integration

Endpoints Used

• GET /api/v1/packs - Fetch packs for selection
• POST /api/v1/triggers - Create new trigger
• PUT /api/v1/triggers/{ref} - Update existing trigger

Request Structure

{
  "pack_ref": "core",
  "ref": "core.custom_webhook",
  "label": "Custom Webhook",
  "description": "Custom webhook trigger",
  "webhook_enabled": true,
  "enabled": true,
  "param_schema": { "type": "object", "properties": {...} },
  "out_schema": { "type": "object", "properties": {...} }
}

User Experience

Discoverability

• Create button prominently displayed in triggers list header
• Clear call-to-action with Plus icon
• Info box explains use cases for ad-hoc triggers

Workflow

1. User clicks "Create Trigger" button
2. Selects pack from dropdown
3. Enters human-readable label
4. Ref auto-populates when label loses focus
5. Optionally adds description and schemas
6. Configures webhook and enabled settings
7. Submits form
8. Redirected to new trigger detail view

Error Handling

• Field-level validation with inline error messages
• JSON schema validation with specific error feedback
• Server error display with meaningful messages
• Cancel button returns to triggers list

Technical Details

Form State Management

• React hooks for local state (useState)
• TanStack Query for data fetching and mutations
• React Router for navigation

Type Safety

• TypeScript throughout
• Proper typing for form data and API responses
• OpenAPI-generated types for consistency

Styling

• Tailwind CSS utility classes
• Custom CSS components for specialized needs
• Consistent with existing UI patterns

Testing Considerations

Manual Testing Checklist

• Create trigger with minimal fields (pack, label)
• Verify ref auto-population from label
• Create trigger with all optional fields
• Validate JSON schema error handling
• Test webhook toggle functionality
• Verify enabled/disabled toggle
• Test cancel navigation
• Verify successful creation redirects to detail view
• Test pack selection dropdown
• Verify form validation messages

Edge Cases

• Empty label → validation error
• Invalid ref characters → validation error
• Malformed JSON schemas → validation error
• Missing pack selection → validation error

Files Changed

New Files

• attune/web/src/components/forms/TriggerForm.tsx (414 lines)
• attune/web/src/pages/triggers/TriggerCreatePage.tsx (45 lines)

Modified Files

• attune/web/src/pages/triggers/TriggersPage.tsx (+12 lines)
• attune/web/src/App.tsx (+2 lines)
• attune/web/src/lib/format-utils.ts (+21 lines)
• attune/web/src/tsconfig.app.json (+1 line)

Styling Files

• attune/web/src/index.css (previously updated for .input-with-prefix)

Future Enhancements

Potential Improvements

1. Trigger Templates: Provide common trigger templates (webhook, timer, etc.)
2. Schema Builder: Visual JSON schema builder instead of raw JSON
3. Schema Examples: Pre-filled schema examples for common patterns
4. Webhook URL Display: Show generated webhook URL after creation
5. Duplicate Detection: Warn if similar trigger ref already exists
6. Batch Import: Allow bulk trigger creation from YAML/JSON
7. Trigger Testing: Test trigger activation directly from UI
8. Parameter Preview: Show rendered parameter form based on schema

Related Work Needed

• Edit Trigger: Currently form supports editing mode but no edit page exists
• Trigger Detail View: Enhance detail view to show webhook URLs and configuration
• Sensor Creation: Apply same patterns to sensor creation (if not already done)
• Action Creation: Apply same patterns to action creation (if not already done)

Consistency Notes

This implementation maintains consistency with:

• RuleForm: Same label-before-ref pattern
• PackForm: Similar form structure and validation
• Navigation patterns: Consistent breadcrumb and button placement
• Error handling: Standard error display and validation
• Styling: Unified Tailwind classes and custom components

Build Status

✅ TypeScript compilation successful
✅ Vite build successful
✅ No runtime errors
✅ All imports resolved

Deployment Notes

No backend changes required - uses existing trigger API endpoints.
Frontend-only changes safe to deploy independently.

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Implementation Time: ~1 hour
Complexity: Medium
Impact: High (enables critical webhook and workflow functionality)