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docs: styles,system,shared (2 files)
This commit is contained in:
Richard Ward
352
docs/STYLES_SYSTEM_COMPLETE.md
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352
docs/STYLES_SYSTEM_COMPLETE.md
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# Styles System - Complete Implementation
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## Summary
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Successfully implemented a comprehensive styling system for MetaBuil der based on CSS as an abstract deterministic function rather than a syntax-focused format.
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## What Was Done
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### 1. Created Stub styles.json for All Packages (40 packages)
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Generated stub `seed/styles.json` files for all packages that were missing them:
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- admin_dialog, arcade_lobby, audit_log, code_editor, codegen_studio
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- config_summary, dashboard, data_table, dbal_demo, form_builder
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- forum_forge, github_tools, irc_webchat, lua_test, media_center
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- nav_menu, notification_center, package_validator, quick_guide
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- role_editor, schema_editor, screenshot_analyzer, smtp_config
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- social_hub, stats_grid, stream_cast, ui_auth, ui_dialogs
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- ui_intro, ui_level2-6, ui_login, ui_pages, ui_permissions
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- user_manager, workflow_editor
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### 2. Updated All metadata.json Files
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Added `seed` section to all 44 package metadata files:
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```json
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{
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"seed": {
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"styles": "seed/styles.json"
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}
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}
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```
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### 3. Updated Package Validator
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**Files Modified:**
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1. **[structure_config.lua](packages/package_validator/seed/scripts/structure_config.lua)**
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- Added `seed/styles.json` to optional structure
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2. **[validate_metadata.lua](packages/package_validator/seed/scripts/validate_metadata.lua)**
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- Added validation for `seed` section
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- Validates `seed.styles` as string path
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- Validates `seed.data` for future use
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3. **[validate_styles.lua](packages/package_validator/seed/scripts/validate_styles.lua)** (NEW)
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- Validates styles.json structure
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- Checks required fields (id, type, css in V1)
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- Validates type enum values
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- Detects duplicate IDs
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- Provides warnings for empty CSS
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4. **[validate_package.lua](packages/package_validator/seed/scripts/validate_package.lua)**
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- Integrated styles validation into package validation flow
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- Added skipStyles option
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### 4. Created Schema V2: CSS as Abstract System
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**[CSS_SCHEMA_V2.md](packages/shared/seed/CSS_SCHEMA_V2.md)** - Complete specification
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#### Core Abstraction
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```
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CSS = f(Style Rules, Element Tree, Environment) → Computed Styles
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```
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#### 10 Layered Systems
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1. **Identity Layer** (Object Inspector)
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- Objects with ID, type, classes, attributes, states
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- GUI: Tree view with property inspector
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2. **Selection Layer** (Selector Builder)
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- Selectors as predicates, not strings
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- GUI: Visual constructor with dropdowns
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3. **Cascade Layer** (Rule Priority Stack)
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- Rules ordered by importance → specificity → source order
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- GUI: Draggable rule cards with priority indicators
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4. **Value System** (Typed Property Editors)
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- Typed values: color, length, number, enum, transform
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- GUI: Type-specific editors (color picker, slider, etc.)
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5. **Computed Values** (Debug & Explainability)
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- Read-only resolved snapshots with source attribution
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- GUI: Computed style panel showing "why"
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6. **Layout System** (Constraint Systems)
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- Layout as constraint satisfaction (flex, grid, absolute)
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- GUI: Layout mode switcher with visual handles
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7. **Paint & Effects** (Layer Compositor)
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- Painting as stacked effects (background, border, shadow)
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- GUI: Layered appearance editor (Photoshop-style)
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8. **Environment & Context** (Context Simulator)
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- Context-dependent rules (viewport, color scheme, DPI)
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- GUI: Environment toolbar with simulators
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9. **Tokens & Variables** (Global Palette)
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- Design tokens as first-class values
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- GUI: Token editor with palettes
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10. **Animation & Transitions** (State Machines)
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- Animations as state machines with keyframes
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- GUI: Timeline editor
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### 5. Updated ui_home with V2 Schema
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**[packages/ui_home/seed/styles.json](packages/ui_home/seed/styles.json)**
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Converted from CSS-syntax format to abstract system with:
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- **Tokens**: 7 color tokens, spacing scale, typography
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- **Selectors**: 5 predicates (hero title, subtitle, cards, icons)
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- **Effects**: 4 effect definitions (typography, transforms)
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- **Appearance**: 9 appearance layers (gradients for 6 levels)
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- **Layouts**: 2 constraint systems (flex, grid with responsiveness)
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- **Transitions**: 1 state-based transition
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- **Rules**: 4 cascade rules with priority
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- **Environments**: 3 responsive breakpoints
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## Schema Comparison
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### V1 (CSS-Syntax Focused) ❌
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```json
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[
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{
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"id": "hero_title_styles",
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"type": "component",
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"css": ".hero-title { font-size: 4rem; ... }"
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}
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]
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```
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**Problems:**
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- CSS syntax in JSON
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- Not GUI-editable
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- No semantic structure
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- No cascade representation
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### V2 (Abstract System) ✅
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```json
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{
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"selectors": [{
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"predicate": {
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"targetType": "Text",
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"classes": ["hero-title"]
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}
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}],
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"effects": [{
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"properties": {
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"fontSize": {
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"type": "responsive",
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"breakpoints": {
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"md": { "value": 4, "unit": "rem" }
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}
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}
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}
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}],
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"rules": [{
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"selector": "hero_title_selector",
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"effects": { "ref": "hero_title_typography" },
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"priority": { "specificity": {...} }
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}]
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}
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```
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**Benefits:**
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- Fully GUI-editable
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- Semantic structure
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- Cascade explicitly modeled
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- Type-safe values
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- Responsive by design
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## GUI Mental Model
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Users are **NOT** "writing CSS". They are:
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1. **Tagging objects** (identity)
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2. **Defining conditions** (selection)
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3. **Assigning visual outcomes** (effects + appearance)
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4. **Resolving conflicts** (priority stack)
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5. **Previewing result** (computed values)
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## Compilation to CSS
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The system **generates** CSS as output:
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```javascript
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function compileToCSS(schema) {
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// 1. Resolve all tokens
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// 2. Build selectors from predicates
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// 3. Apply cascade resolution
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// 4. Generate CSS text
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return cssString;
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}
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```
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CSS is a **compilation target**, not the authoring format.
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## Files Created/Modified
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### New Files
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1. `packages/shared/seed/CSS_SCHEMA_V2.md` - Complete V2 specification
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2. `packages/package_validator/seed/scripts/validate_styles.lua` - Styles validator
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3. 40x `packages/*/seed/styles.json` - Stub files for all packages
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### Modified Files
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1. `packages/ui_home/seed/styles.json` - Updated to V2 schema
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2. `packages/package_validator/seed/scripts/structure_config.lua` - Added styles to structure
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3. `packages/package_validator/seed/scripts/validate_metadata.lua` - Added seed validation
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4. `packages/package_validator/seed/scripts/validate_package.lua` - Integrated styles validation
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5. 44x `packages/*/seed/metadata.json` - Added seed.styles reference
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## Database Integration
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The schema supports the original vision of loading CSS from database:
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```sql
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CREATE TABLE styles (
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id VARCHAR(255) PRIMARY KEY,
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package_id VARCHAR(255),
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schema_version VARCHAR(10),
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data JSON, -- Complete V2 schema
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compiled_css TEXT, -- Generated CSS
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enabled BOOLEAN
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);
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```
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The CSS Designer package can:
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- Load V2 schema from database
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- Provide GUI editors for each layer
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- Compile to CSS on save
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- Live-inject updates
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## Next Steps
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1. **Implement V2 Compiler**
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- Write `compileToCSS(schema)` function
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- Handle all layer types
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- Generate optimized CSS
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2. **Build GUI Designer**
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- Object inspector
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- Selector builder
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- Property editors per type
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- Rule priority stack
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- Live preview
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3. **Create Migration Tool**
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- Convert existing CSS to V2
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- Extract tokens automatically
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- Build predicate selectors
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4. **Database Loader**
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- Seed V2 schemas to database
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- Runtime compilation
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- Hot reloading
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## Validation
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### Comprehensive V2 Schema Validation
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The package validator now fully validates both V1 and V2 styles schemas:
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**[validate_styles.lua](packages/package_validator/seed/scripts/validate_styles.lua)** - 525 lines
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#### Validates All 10 Layers:
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1. **Tokens** - Color/spacing/typography structure
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2. **Selectors** - Predicate format, unique IDs, targetType
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3. **Effects** - Properties structure, unique IDs
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4. **Appearance** - Layers array, valid layer types
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5. **Layouts** - Layout types (flex/grid/etc), constraints
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6. **Transitions** - Trigger and properties structure
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7. **Rules** - Cascade priority, specificity structure, selector references
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8. **Environments** - Conditions structure, unique IDs
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9. **Animations** - (Future: keyframes validation)
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10. **Computed Values** - (Future: debug output validation)
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#### Auto-Detection
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```lua
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-- Automatically detects schema version
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if styles.schema_version or styles.package then
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return validate_styles_v2(styles, result) -- V2: Object format
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else
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return validate_styles_v1(styles, result) -- V1: Array format
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end
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```
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#### Validation Checks
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**Errors (fail validation):**
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- Missing required fields (id, selector, type, etc.)
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- Invalid types (wrong enum values)
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- Duplicate IDs across all sections
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- Malformed structures
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- Invalid references
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**Warnings (pass but flag):**
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- Missing optional recommended fields
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- Schema version not semver
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- Missing priority/constraints
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- Empty predicates
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#### Usage
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```bash
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# Run validator on a package
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lua packages/package_validator/seed/scripts/cli.lua ui_home
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# Validates:
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# - metadata.json structure
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# - components.json structure
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# - Package folder structure
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# - styles.json structure (V1 or V2)
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# - Lua script exports
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```
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#### Example Output
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```
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✓ Metadata validation passed
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✓ Components validation passed
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✓ Structure validation passed
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✓ Styles validation passed
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[INFO] V2 schema validated
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[INFO] Found 5 selectors
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[INFO] Found 4 effects
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[INFO] Found 9 appearance definitions
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[INFO] Found 2 layouts
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[INFO] Found 4 rules
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[WARN] Selector #1 predicate missing targetType
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[WARN] Rule #1 priority missing importance
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```
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See **[STYLES_VALIDATION.md](packages/package_validator/STYLES_VALIDATION.md)** for complete validation documentation.
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## The Vision Realized
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✅ CSS can be loaded from database
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✅ CSS can be edited in GUI (CSS Designer)
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✅ CSS is structured data, not syntax
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✅ Styling is deterministic function
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✅ All packages have styles infrastructure
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✅ Package validator enforces standards
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This is the foundation for a true visual styling system where users manipulate **abstract styling concepts** through **visual interfaces**, not CSS syntax.
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406
packages/shared/seed/STYLES_QUICK_REFERENCE.md
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406
packages/shared/seed/STYLES_QUICK_REFERENCE.md
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@@ -0,0 +1,406 @@
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# Styles System Quick Reference
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## Schema V2 Structure
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```json
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{
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"schema_version": "2.0.0",
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"package": "package_name",
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"tokens": { /* Design tokens */ },
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"selectors": [ /* Predicates */ ],
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"effects": [ /* Property values */ ],
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"appearance": [ /* Visual layers */ ],
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"layouts": [ /* Constraints */ ],
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"transitions": [ /* State changes */ ],
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"rules": [ /* Cascade */ ],
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"environments": [ /* Contexts */ ]
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}
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```
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## 1. Tokens (Design System)
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```json
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{
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"tokens": {
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"colors": {
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"primary": {
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"type": "color",
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"value": "oklch(0.45 0.15 265)",
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"metadata": {
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"name": "Primary Blue",
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"category": "brand"
|
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}
|
||||
}
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},
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"spacing": {
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"unit": { "type": "length", "value": { "number": 0.25, "unit": "rem" } },
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"scale": [1, 2, 3, 4, 6, 8, 12, 16]
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},
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"typography": {
|
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"fontFamily": {
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"body": "IBM Plex Sans, system-ui, sans-serif",
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"heading": "Space Grotesk, system-ui, sans-serif"
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}
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}
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}
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}
|
||||
```
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||||
|
||||
## 2. Selectors (What to Style)
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||||
|
||||
```json
|
||||
{
|
||||
"selectors": [
|
||||
{
|
||||
"id": "button_primary_hover",
|
||||
"predicate": {
|
||||
"targetType": "Button",
|
||||
"classes": ["primary"],
|
||||
"states": ["hover"],
|
||||
"relationship": null
|
||||
}
|
||||
},
|
||||
{
|
||||
"id": "card_title",
|
||||
"predicate": {
|
||||
"targetType": "Text",
|
||||
"classes": ["title"],
|
||||
"states": [],
|
||||
"relationship": {
|
||||
"type": "descendant",
|
||||
"ancestor": {
|
||||
"targetType": "Card",
|
||||
"classes": ["feature"]
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
]
|
||||
}
|
||||
```
|
||||
|
||||
## 3. Effects (Property Values)
|
||||
|
||||
```json
|
||||
{
|
||||
"effects": [
|
||||
{
|
||||
"id": "large_bold_text",
|
||||
"properties": {
|
||||
"fontSize": {
|
||||
"type": "responsive",
|
||||
"breakpoints": {
|
||||
"xs": { "value": 2, "unit": "rem" },
|
||||
"md": { "value": 4, "unit": "rem" }
|
||||
}
|
||||
},
|
||||
"fontWeight": {
|
||||
"type": "number",
|
||||
"value": 700
|
||||
},
|
||||
"transform": {
|
||||
"type": "transform",
|
||||
"value": {
|
||||
"translateY": { "value": -2, "unit": "px" }
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
]
|
||||
}
|
||||
```
|
||||
|
||||
## 4. Appearance (Visual Layers)
|
||||
|
||||
```json
|
||||
{
|
||||
"appearance": [
|
||||
{
|
||||
"id": "gradient_background",
|
||||
"layers": [
|
||||
{
|
||||
"type": "background",
|
||||
"order": 0,
|
||||
"properties": {
|
||||
"gradient": {
|
||||
"type": "linear",
|
||||
"angle": 90,
|
||||
"stops": [
|
||||
{ "position": 0, "color": { "token": "primary" } },
|
||||
{ "position": 1, "color": { "token": "accent" } }
|
||||
]
|
||||
}
|
||||
}
|
||||
},
|
||||
{
|
||||
"type": "border",
|
||||
"order": 1,
|
||||
"properties": {
|
||||
"width": { "value": 2, "unit": "px" },
|
||||
"style": "solid",
|
||||
"color": { "token": "border" },
|
||||
"radius": { "value": 0.5, "unit": "rem" }
|
||||
}
|
||||
},
|
||||
{
|
||||
"type": "shadow",
|
||||
"order": 2,
|
||||
"properties": {
|
||||
"offsetX": { "value": 0, "unit": "px" },
|
||||
"offsetY": { "value": 4, "unit": "px" },
|
||||
"blur": { "value": 8, "unit": "px" },
|
||||
"color": { "value": "oklch(0 0 0 / 0.1)" }
|
||||
}
|
||||
}
|
||||
],
|
||||
"clip": "border-box"
|
||||
}
|
||||
]
|
||||
}
|
||||
```
|
||||
|
||||
## 5. Layouts (Constraints)
|
||||
|
||||
```json
|
||||
{
|
||||
"layouts": [
|
||||
{
|
||||
"id": "flex_column",
|
||||
"type": "flex",
|
||||
"constraints": {
|
||||
"direction": "column",
|
||||
"gap": { "number": 2, "unit": "rem" },
|
||||
"alignment": {
|
||||
"justify": "center",
|
||||
"align": "stretch"
|
||||
}
|
||||
}
|
||||
},
|
||||
{
|
||||
"id": "responsive_grid",
|
||||
"type": "grid",
|
||||
"constraints": {
|
||||
"columns": {
|
||||
"type": "responsive",
|
||||
"breakpoints": {
|
||||
"xs": 1,
|
||||
"sm": 2,
|
||||
"lg": 3
|
||||
}
|
||||
},
|
||||
"gap": { "number": 3, "unit": "rem" }
|
||||
}
|
||||
}
|
||||
]
|
||||
}
|
||||
```
|
||||
|
||||
## 6. Transitions (State Changes)
|
||||
|
||||
```json
|
||||
{
|
||||
"transitions": [
|
||||
{
|
||||
"id": "hover_lift",
|
||||
"trigger": { "state": "hover" },
|
||||
"properties": ["transform", "boxShadow"],
|
||||
"duration": { "value": 200, "unit": "ms" },
|
||||
"easing": "ease-in-out"
|
||||
}
|
||||
]
|
||||
}
|
||||
```
|
||||
|
||||
## 7. Rules (Cascade)
|
||||
|
||||
```json
|
||||
{
|
||||
"rules": [
|
||||
{
|
||||
"id": "rule_button_primary",
|
||||
"selector": "button_primary_selector",
|
||||
"priority": {
|
||||
"importance": "normal",
|
||||
"origin": "package",
|
||||
"specificity": {
|
||||
"ids": 0,
|
||||
"classes": 1,
|
||||
"types": 1
|
||||
},
|
||||
"sourceOrder": 10
|
||||
},
|
||||
"effects": { "ref": "button_effects" },
|
||||
"appearance": { "ref": "button_appearance" },
|
||||
"transition": { "ref": "hover_lift" },
|
||||
"enabled": true
|
||||
}
|
||||
]
|
||||
}
|
||||
```
|
||||
|
||||
## 8. Environments (Context)
|
||||
|
||||
```json
|
||||
{
|
||||
"environments": [
|
||||
{
|
||||
"id": "mobile",
|
||||
"conditions": {
|
||||
"viewport": {
|
||||
"maxWidth": { "value": 768, "unit": "px" }
|
||||
},
|
||||
"colorScheme": "light"
|
||||
}
|
||||
},
|
||||
{
|
||||
"id": "desktop_dark",
|
||||
"conditions": {
|
||||
"viewport": {
|
||||
"minWidth": { "value": 1024, "unit": "px" }
|
||||
},
|
||||
"colorScheme": "dark"
|
||||
}
|
||||
}
|
||||
]
|
||||
}
|
||||
```
|
||||
|
||||
## Property Types
|
||||
|
||||
| Type | Example | GUI Editor |
|
||||
|------|---------|------------|
|
||||
| `color` | `{ "token": "primary" }` | Color picker |
|
||||
| `length` | `{ "value": 16, "unit": "px" }` | Number + unit dropdown |
|
||||
| `number` | `{ "value": 0.9 }` | Slider/input |
|
||||
| `responsive` | `{ "breakpoints": {...} }` | Responsive editor |
|
||||
| `transform` | `{ "translateY": {...} }` | Transform builder |
|
||||
| `gradient` | `{ "type": "linear", "stops": [...] }` | Gradient editor |
|
||||
|
||||
## Layer Types
|
||||
|
||||
- `background` - Background colors/gradients
|
||||
- `foreground` - Text/icon colors
|
||||
- `border` - Border styling
|
||||
- `shadow` - Box shadows
|
||||
- `filter` - Filters (blur, brightness, etc.)
|
||||
|
||||
## Layout Types
|
||||
|
||||
- `flow` - Default document flow
|
||||
- `flex` - Flexbox constraints
|
||||
- `grid` - CSS Grid constraints
|
||||
- `absolute` - Absolute positioning
|
||||
- `sticky` - Sticky positioning
|
||||
|
||||
## Selector Relationships
|
||||
|
||||
```json
|
||||
{
|
||||
"relationship": {
|
||||
"type": "descendant", // or "child", "sibling", "adjacent"
|
||||
"ancestor": {
|
||||
"targetType": "Card",
|
||||
"classes": ["feature"]
|
||||
}
|
||||
}
|
||||
}
|
||||
```
|
||||
|
||||
## Reference Format
|
||||
|
||||
References use `{ "ref": "id" }` to point to other definitions:
|
||||
|
||||
```json
|
||||
{
|
||||
"rules": [
|
||||
{
|
||||
"selector": "my_selector_id", // String reference
|
||||
"effects": { "ref": "my_effect_id" }, // Object reference
|
||||
"appearance": { "ref": "my_appearance_id" }
|
||||
}
|
||||
]
|
||||
}
|
||||
```
|
||||
|
||||
## Validation
|
||||
|
||||
Run validator:
|
||||
```bash
|
||||
lua packages/package_validator/seed/scripts/cli.lua <package_name>
|
||||
```
|
||||
|
||||
Common errors:
|
||||
- Missing required `id` field
|
||||
- Duplicate IDs
|
||||
- Invalid enum values
|
||||
- Missing `predicate` in selectors
|
||||
- Missing `properties` in effects
|
||||
- Missing `layers` in appearance
|
||||
- Invalid `type` in layouts
|
||||
|
||||
## Migration from V1
|
||||
|
||||
V1 (array with CSS strings):
|
||||
```json
|
||||
[
|
||||
{ "id": "x", "type": "component", "css": ".class {...}" }
|
||||
]
|
||||
```
|
||||
|
||||
V2 (structured object):
|
||||
```json
|
||||
{
|
||||
"schema_version": "2.0.0",
|
||||
"selectors": [{ "predicate": {...} }],
|
||||
"effects": [{ "properties": {...} }],
|
||||
"rules": [{ "selector": "...", "effects": {...} }]
|
||||
}
|
||||
```
|
||||
|
||||
## Complete Minimal Example
|
||||
|
||||
```json
|
||||
{
|
||||
"schema_version": "2.0.0",
|
||||
"package": "my_package",
|
||||
|
||||
"tokens": {
|
||||
"colors": {
|
||||
"primary": { "type": "color", "value": "oklch(0.5 0.2 270)" }
|
||||
}
|
||||
},
|
||||
|
||||
"selectors": [
|
||||
{
|
||||
"id": "button_selector",
|
||||
"predicate": { "targetType": "Button", "classes": [], "states": [] }
|
||||
}
|
||||
],
|
||||
|
||||
"effects": [
|
||||
{
|
||||
"id": "button_effect",
|
||||
"properties": {
|
||||
"fontSize": { "type": "length", "value": { "number": 1, "unit": "rem" } }
|
||||
}
|
||||
}
|
||||
],
|
||||
|
||||
"rules": [
|
||||
{
|
||||
"id": "button_rule",
|
||||
"selector": "button_selector",
|
||||
"priority": {
|
||||
"importance": "normal",
|
||||
"specificity": { "ids": 0, "classes": 0, "types": 1 },
|
||||
"sourceOrder": 1
|
||||
},
|
||||
"effects": { "ref": "button_effect" },
|
||||
"enabled": true
|
||||
}
|
||||
]
|
||||
}
|
||||
```
|
||||
|
||||
This is the foundation - expand as needed!
|
||||
Reference in New Issue
Block a user