Built-in Rules

// Available rule categories and their focus areas
type RuleCategory = 
  | "accessibility"     // ARIA, semantic HTML, keyboard navigation
  | "components"        // Ember component best practices  
  | "style"            // Formatting and code style
  | "deprecated"       // Deprecated Ember patterns
  | "security"         // Security-related checks
  | "performance"      // Performance optimizations
  | "maintainability"; // Code maintainability

// Rule severity levels
type RuleSeverity = -1 | 0 | 1 | 2; // todo, ignore, warning, error

// Key accessibility rules
const AccessibilityRules = {
  "no-abstract-roles": "Prevent abstract ARIA roles",
  "no-accesskey-attribute": "Prevent accesskey attribute usage", 
  "no-aria-hidden-body": "Prevent aria-hidden on body element",
  "no-aria-unsupported-elements": "Prevent ARIA attributes on unsupported elements",
  "no-autofocus-attribute": "Prevent autofocus attribute",
  "no-positive-tabindex": "Prevent positive tabindex values",
  "require-aria-activedescendant-tabindex": "Require tabindex when using aria-activedescendant",
  "require-input-label": "Require labels for input elements",
  "require-lang-attribute": "Require lang attribute on html element",
  "require-mandatory-role-attributes": "Require mandatory ARIA role attributes",
  "require-valid-alt-text": "Require meaningful alt text for images"
};

// Key component rules
const ComponentRules = {
  "no-curly-component-invocation": "Prefer angle bracket component syntax",
  "no-implicit-this": "Require explicit this in template expressions",
  "no-index-component-invocation": "Prevent index component invocations",
  "builtin-component-arguments": "Validate built-in component arguments",
  "require-each-key": "Require key attribute in each loops",
  "require-strict-mode": "Require strict mode in templates",
  "no-attrs-in-components": "Prevent @attrs usage in components",
  "no-capital-arguments": "Prevent capitalized component arguments",
  "no-arguments-for-html-elements": "Prevent arguments on HTML elements"
};

// Key style rules
const StyleRules = {
  "attribute-indentation": "Enforce consistent attribute indentation",
  "attribute-order": "Enforce consistent attribute ordering", 
  "block-indentation": "Enforce consistent block indentation",
  "eol-last": "Require newline at end of file",
  "linebreak-style": "Enforce consistent linebreak style",
  "quotes": "Enforce consistent quote style",
  "no-multiple-empty-lines": "Prevent multiple consecutive empty lines",
  "no-trailing-spaces": "Prevent trailing whitespace",
  "no-whitespace-for-layout": "Prevent whitespace for layout purposes"
};

// Key security and best practice rules
const SecurityRules = {
  "no-action": "Prevent action usage (deprecated)",
  "no-debugger": "Prevent debugger statements",
  "no-triple-curlies": "Prevent triple curly braces (unsafe HTML)",
  "link-rel-noopener": "Require rel='noopener' on external links",
  "no-bare-strings": "Prevent bare strings in templates",
  "no-html-comments": "Prevent HTML comments in templates",
  "no-inline-styles": "Prevent inline style attributes"
};

// Complete rule registry (excerpt - showing pattern)
const AllRules = {
  // Accessibility (11+ rules)
  "no-abstract-roles": "Prevent abstract ARIA roles",
  "no-accesskey-attribute": "Prevent accesskey attribute usage",
  "no-aria-hidden-body": "Prevent aria-hidden on body element",
  "no-aria-unsupported-elements": "Prevent ARIA attributes on unsupported elements",
  "no-autofocus-attribute": "Prevent autofocus attribute",
  "no-positive-tabindex": "Prevent positive tabindex values",
  "require-aria-activedescendant-tabindex": "Require tabindex when using aria-activedescendant",
  "require-input-label": "Require labels for input elements",
  "require-lang-attribute": "Require lang attribute on html element", 
  "require-mandatory-role-attributes": "Require mandatory ARIA role attributes",
  "require-valid-alt-text": "Require meaningful alt text for images",
  
  // Component best practices (20+ rules)
  "builtin-component-arguments": "Validate built-in component arguments",
  "no-attrs-in-components": "Prevent @attrs usage in components",
  "no-capital-arguments": "Prevent capitalized component arguments",
  "no-curly-component-invocation": "Prefer angle bracket component syntax",
  "no-implicit-this": "Require explicit this in template expressions",
  "no-index-component-invocation": "Prevent index component invocations",
  "require-each-key": "Require key attribute in each loops",
  "require-strict-mode": "Require strict mode in templates",
  
  // Style and formatting (15+ rules)
  "attribute-indentation": "Enforce consistent attribute indentation",
  "attribute-order": "Enforce consistent attribute ordering",
  "block-indentation": "Enforce consistent block indentation", 
  "eol-last": "Require newline at end of file",
  "linebreak-style": "Enforce consistent linebreak style",
  "quotes": "Enforce consistent quote style",
  
  // Security and best practices (20+ rules)
  "no-action": "Prevent action usage (deprecated)",
  "no-debugger": "Prevent debugger statements", 
  "no-triple-curlies": "Prevent triple curly braces (unsafe HTML)",
  "link-rel-noopener": "Require rel='noopener' on external links",
  
  // Performance optimizations (10+ rules)
  "no-unnecessary-component-helper": "Prevent unnecessary component helper usage",
  "no-unnecessary-concat": "Prevent unnecessary string concatenation",
  "no-unused-block-params": "Prevent unused block parameters",
  
  // Deprecated patterns (10+ rules)
  "deprecated-inline-view-helper": "Prevent deprecated inline view helper",
  "deprecated-render-helper": "Prevent deprecated render helper",
  
  // Template structure (25+ rules)
  "no-duplicate-attributes": "Prevent duplicate attributes",
  "no-duplicate-id": "Prevent duplicate ID attributes",
  "no-empty-headings": "Prevent empty heading elements",
  "no-forbidden-elements": "Prevent usage of forbidden elements",
  "no-nested-interactive": "Prevent nested interactive elements",
  
  // And 50+ additional rules covering edge cases, specific patterns, etc...
};

// Rule configuration options
interface RuleConfig {
  // Severity: -1=todo, 0=off, 1=warn, 2=error
  severity: -1 | 0 | 1 | 2;
  
  // Rule-specific configuration
  config?: any;
}

// Example configurations for common rules
const ExampleConfigs = {
  "no-bare-strings": {
    severity: 2, // error
    config: {
      allowlist: ["&nbsp;", "&copy;", "(", ")", ",", ".", "&", "+", "-", "=", "*", "/", "#", "%", "!", "?", ":", "[", "]", "{", "}", "<", ">", "•"]
    }
  },
  
  "no-implicit-this": {
    severity: 2,
    config: {
      allow: ["can", "cannot", "is-array", "not-eq", "titleize"]
    }
  },
  
  "quotes": {
    severity: 1, // warning
    config: "double" // or "single"
  },
  
  "attribute-indentation": {
    severity: 2,
    config: {
      indentSize: 2,
      alignAttributesVertically: false
    }
  }
};

// .template-lintrc.js
module.exports = {
  extends: ['recommended', 'a11y'],
  
  rules: {
    // Enable specific rules
    'no-bare-strings': 'error',
    'require-valid-alt-text': 'error',
    
    // Configure rules with options
    'no-implicit-this': ['error', { 
      allow: ['can', 'cannot'] 
    }],
    
    'quotes': ['warn', 'double'],
    
    // Disable specific rules
    'no-html-comments': 'off',
    
    // Set as TODO (will be tracked but not fail builds)
    'no-curly-component-invocation': 'todo'
  },
  
  // File-specific overrides
  overrides: [
    {
      files: ['**/*-test.{js,ts}'],
      rules: {
        'no-bare-strings': 'off'
      }
    }
  ]
};

// Available preset configurations
const Presets = {
  "recommended": "Core recommended rules for all Ember applications",
  "a11y": "Accessibility-focused rules for inclusive applications", 
  "stylistic": "Code style and formatting rules",
  "5-x-recommended": "Legacy compatibility rules for Ember 5.x projects"
};

// Usage in configuration
const configWithPresets = {
  extends: ['recommended', 'a11y'],
  rules: {
    // Override specific preset rules if needed
    'no-bare-strings': 'warn' // Override from 'error' in recommended
  }
};