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low-code-react-app-b/JSON_UI_REFACTOR_PRD.md
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JSON-Driven UI Refactoring Project

Experience Qualities:

This is a comprehensive refactoring that introduces a sophisticated JSON rendering engine, brea

Essential Features

JSON Schema Engine

Complexity Level: Complex Application (advanced functionality with multiple views) This is a comprehensive refactoring that introduces a sophisticated JSON rendering engine, breaks down large monolithic components into atomic pieces, and extracts complex logic into custom hooks for maximum reusability.

Essential Features

JSON Schema Engine

  • Functionality: Interprets JSON declarations to render complete UI hierarchies

  • Purpose: Enable rapid UI changes without code modifications

  • Trigger: Page load with JSON schema file

  • Functionality: Extract all business logic, state management, and side effects into focused hoo

  • Success criteria: Comp

Dynamic Data Binding

  • Purpose: Connect UI declarations to application s

  • Progression: Parse binding → Evaluate ex

  • Functionality: Map string function names in JSON to actual function implementations

  • Success criteria: All

Edge Case Handling

  • Invalid JSON Schema: Validate schemas on load, show helpful error m

  • Unknown Components: Log warning and render p

  • Performance Issues: Implement memoization and virtualization for large lists

  • Card backgrounds: `oklch(0.

  • Primary (`oklch(0.55 0.

  • H1 (Page Title): Space Grotesk Bold/32px/tight letter spacing/-0.02em

  • H3 (Card Title): Space Grotesk Medium/18px/normal/0em

  • Card - Primary container for grouped content, heavy use throughout

  • Button - All sizes from icon-only to full CTAs

  • Dialog - Modals for editing schemas, previewing renders

  • Select/Combobox - Component type selection, binding target selection

  • Binding expression builder with autocomplete

  • Buttons: Hover l

Icon Selection:

  • Lightning for actio

  • Stack for composed components

  • Wrench for configuration

  • Card padding: p-6

Foreground/Background Pairings:

  • Background (oklch(0.12 0.02 260)): Foreground (oklch(0.95 0.005 260)) - Ratio 17.8:1 ✓
  • Card (oklch(0.16 0.02 260)): Card Foreground (oklch(0.95 0.005 260)) - Ratio 15.2:1 ✓
  • Primary (oklch(0.55 0.18 280)): Primary Foreground (oklch(1 0 0)) - Ratio 6.1:1 ✓
  • Accent (oklch(0.75 0.15 195)): Accent Foreground (oklch(0.12 0.02 260)) - Ratio 11.4:1 ✓

Font Selection

Use a distinctive technical aesthetic with modern developer-focused typefaces that communicate precision and clarity.

Typographic Hierarchy:

  • H1 (Page Title): Space Grotesk Bold/32px/tight letter spacing/-0.02em
  • H2 (Section Header): Space Grotesk SemiBold/24px/normal/0em
  • H3 (Card Title): Space Grotesk Medium/18px/normal/0em
  • Body: Inter Regular/14px/relaxed/1.6 line height
  • Code: JetBrains Mono Regular/13px/monospace/1.5 line height
  • Caption: Inter Regular/12px/relaxed/tracking-wide

Animations

Animations should emphasize the technical nature while remaining subtle. Use sharp, precise movements that reflect data flow and system operations. Key moments: schema loading (pulse effect), component mounting (fade-up), data updates (highlight flash), and navigation transitions (slide).

Component Selection

Components:

  • Card - Primary container for grouped content, heavy use throughout
  • Badge - Status indicators for components, data sources, build status
  • Button - All sizes from icon-only to full CTAs
  • Tabs - Navigation between schemas, configuration views
  • Dialog - Modals for editing schemas, previewing renders
  • ScrollArea - Custom scrollbars for code editors and tree views
  • Select/Combobox - Component type selection, binding target selection
  • Input/Textarea - JSON editing, binding expressions
  • Accordion - Collapsible sections in property panels
  • Separator - Visual hierarchy in dense information displays

Customizations:

  • Custom JSON editor component with syntax highlighting
  • Schema visualizer component showing component hierarchy
  • Binding expression builder with autocomplete
  • Component palette with drag-and-drop preview

States:

  • Buttons: Hover lifts slightly with shadow, active presses down, disabled grays out with reduced opacity
  • Inputs: Focus shows accent ring, error shows destructive ring with shake animation
  • Cards: Hover subtly brightens border, selected shows accent border

Icon Selection:

  • Code/FileCode for schemas and JSON files
  • Tree/TreeStructure for component hierarchies
  • Database for data bindings
  • Lightning for actions and functions
  • Cube for atomic components
  • Stack for composed components
  • Eye for preview modes
  • Wrench for configuration

Spacing:

  • Base unit: 4px (Tailwind's spacing scale)
  • Card padding: p-6
  • Section gaps: gap-6
  • Grid gaps: gap-4
  • Inline gaps: gap-2
  • Tight groups: gap-1

Mobile:

  • Stack navigation tabs vertically in sheet
  • Single column grid for stat cards
  • Collapsible property panels
  • Full-screen modals
  • Bottom sheet for quick actions
  • Touch-optimized hit areas (min 44px)
  • Grid gaps: gap-4
  • Inline gaps: gap-2
  • Tight groups: gap-1

Mobile:

  • Stack navigation tabs vertically in sheet
  • Single column grid for stat cards
  • Collapsible property panels
  • Full-screen modals
  • Bottom sheet for quick actions
  • Touch-optimized hit areas (min 44px)
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