low-code-react-app-b/SCHEMA_CONVERSION_SUMMARY.md

Schema Conversion Summary

Overview

Successfully converted TypeScript schema files to JSON format with extracted compute functions.

Files Created

JSON Schemas

1. src/schemas/analytics-dashboard.json - Converted from dashboard-schema.ts

   • Contains the analytics dashboard with user management
   • Compute functions: computeFilteredUsers, computeStats, updateFilterQuery, transformFilteredUsers, transformUserList

2. src/schemas/todo-list.json - Split from page-schemas.ts

   • Todo list application schema
   • Compute functions: computeTodoStats, updateNewTodo, computeAddTodo, checkCanAddTodo

3. src/schemas/dashboard-simple.json - Split from page-schemas.ts

   • Simple dashboard with static stats
   • No compute functions (pure static data)

4. src/schemas/new-molecules-showcase.json - Split from page-schemas.ts

   • Showcase of new molecular components
   • No compute functions (pure static data)

TypeScript Support Files

5. src/schemas/compute-functions.ts - Exported compute functions

   • computeFilteredUsers - Filters users by search query
   • computeStats - Calculates user statistics (total, active, inactive)
   • computeTodoStats - Calculates todo statistics (total, completed, remaining)
   • computeAddTodo - Creates new todo item
   • updateFilterQuery - Event handler for filter input
   • updateNewTodo - Event handler for todo input
   • checkCanAddTodo - Condition checker for add button
   • transformFilteredUsers - Transform function for badge display
   • transformUserList - Transform function for rendering user cards

6. src/schemas/schema-loader.ts - Hydration utility

   • hydrateSchema() - Converts JSON schemas to runtime schemas
   • Replaces string function identifiers with actual functions
   • Handles compute functions in dataSources, events, actions, and bindings

Updated Files

Component Files

• src/components/DashboardDemoPage.tsx

  • Changed from importing TS schema to importing JSON + hydration

• src/components/JSONUIShowcasePage.tsx

  • Changed from importing TS schemas to importing JSON + hydration

Configuration

• tsconfig.json
  • Added "resolveJsonModule": true to enable JSON imports

Documentation

• docs/ARCHITECTURE.md - Updated file structure and example code
• docs/JSON_UI_GUIDE.md - Updated references to schema files
• docs/IMPLEMENTATION_SUMMARY.md - Updated file list
• docs/JSON_UI_ENHANCEMENT_SUMMARY.md - Updated schema file name

How It Works

1. JSON Schema Format

Compute functions are represented as string identifiers in JSON:

{
  "id": "stats",
  "type": "computed",
  "compute": "computeStats",
  "dependencies": ["users"]
}

2. Hydration Process

The hydrateSchema() function replaces string identifiers with actual functions:

import { hydrateSchema } from '@/schemas/schema-loader'
import analyticsDashboardJson from '@/schemas/analytics-dashboard.json'

const schema = hydrateSchema(analyticsDashboardJson)

3. Usage in Components

export function DashboardDemoPage() {
  return <PageRenderer schema={schema} />
}

Benefits

1. Pure JSON - Schemas are now pure JSON files, making them easier to:

   • Store in databases
   • Transmit over APIs
   • Edit with JSON tools
   • Version control and diff

2. Separation of Concerns - Logic is separated from structure:

   • JSON defines the UI structure
   • TypeScript contains the compute logic
   • Schema loader connects them at runtime

3. Type Safety - TypeScript functions remain type-safe and testable

4. Maintainability - Compute functions are centralized and reusable

Old Files (Can be removed)

• src/schemas/dashboard-schema.ts (replaced by analytics-dashboard.json)
• src/schemas/page-schemas.ts (split into 3 JSON files)

Note: Keep src/schemas/ui-schema.ts as it contains Zod validation schemas, not UI schemas.

Testing

• Build completed successfully with npm run build
• All TypeScript errors resolved
• JSON imports working correctly