Asset Resolution

/**
 * Resolves a globally registered component by name
 * @param name - Component name to resolve
 * @returns Resolved component or component name string if not found
 */
function resolveComponent(name: string): ConcreteComponent | string;

import { defineComponent, resolveComponent, h } from "@vue/runtime-core";

// Basic component resolution
const DynamicComponentExample = defineComponent({
  props: {
    componentName: { type: String, required: true }
  },
  
  setup(props) {
    return () => {
      // Resolve component by name
      const Component = resolveComponent(props.componentName);
      
      // Check if component was found
      if (typeof Component === 'string') {
        console.warn(`Component "${props.componentName}" not found`);
        return h('div', `Component "${props.componentName}" not registered`);
      }
      
      return h(Component, { message: 'Hello from dynamic component' });
    };
  }
});

// Usage with component registry
const app = createApp({
  components: {
    'my-button': MyButtonComponent,
    'my-input': MyInputComponent,
    'my-modal': MyModalComponent
  },
  
  setup() {
    const currentComponent = ref('my-button');
    
    return () => {
      const Component = resolveComponent(currentComponent.value);
      return h(Component);
    };
  }
});

// Conditional component rendering
const ConditionalRenderer = defineComponent({
  props: {
    showAdvanced: Boolean
  },
  
  setup(props) {
    return () => {
      const componentName = props.showAdvanced ? 'advanced-form' : 'simple-form';
      const Component = resolveComponent(componentName);
      
      return typeof Component !== 'string' 
        ? h(Component)
        : h('div', 'Component not available');
    };
  }
});

/**
 * Resolves a globally registered directive by name
 * @param name - Directive name to resolve (without v- prefix)
 * @returns Resolved directive or undefined if not found
 */
function resolveDirective(name: string): Directive | undefined;

import { defineComponent, resolveDirective, withDirectives, h } from "@vue/runtime-core";

// Dynamic directive application
const DynamicDirectiveExample = defineComponent({
  props: {
    directiveName: String,
    directiveValue: String
  },
  
  setup(props) {
    return () => {
      const element = h('input', { type: 'text' });
      
      if (props.directiveName) {
        const directive = resolveDirective(props.directiveName);
        
        if (directive) {
          return withDirectives(element, [
            [directive, props.directiveValue]
          ]);
        }
      }
      
      return element;
    };
  }
});

// Conditional directive usage
const ConditionalDirective = defineComponent({
  props: {
    enableTooltip: Boolean,
    tooltipText: String
  },
  
  setup(props) {
    return () => {
      let element = h('button', 'Hover me');
      
      if (props.enableTooltip) {
        const tooltipDirective = resolveDirective('tooltip');
        
        if (tooltipDirective) {
          element = withDirectives(element, [
            [tooltipDirective, props.tooltipText]
          ]);
        }
      }
      
      return element;
    };
  }
});

// Multiple directive resolution
const MultiDirectiveComponent = defineComponent({
  setup() {
    const directives = ['focus', 'tooltip', 'ripple'];
    
    return () => {
      const resolvedDirectives = directives
        .map(name => ({ name, directive: resolveDirective(name) }))
        .filter(item => item.directive);
      
      let element = h('button', 'Multi-directive button');
      
      if (resolvedDirectives.length > 0) {
        const directiveBindings = resolvedDirectives.map(({ directive }) => [
          directive,
          true // Simple binding value
        ]);
        
        element = withDirectives(element, directiveBindings);
      }
      
      return element;
    };
  }
});

/**
 * Resolves dynamic component reference to actual component
 * @param component - Component reference (string, component object, or function)
 * @returns Resolved component type
 */
function resolveDynamicComponent(component: unknown): VNodeTypes;

import { defineComponent, resolveDynamicComponent, h } from "@vue/runtime-core";

// Flexible component resolution
const FlexibleRenderer = defineComponent({
  props: {
    component: [String, Object, Function]
  },
  
  setup(props) {
    return () => {
      const resolvedComponent = resolveDynamicComponent(props.component);
      return h(resolvedComponent);
    };
  }
});

// Component factory pattern
const ComponentFactory = defineComponent({
  props: {
    type: { type: String, required: true },
    config: Object
  },
  
  setup(props) {
    const componentMap: Record<string, any> = {
      'button': () => import('./ButtonComponent.vue'),
      'input': () => import('./InputComponent.vue'),
      'select': () => import('./SelectComponent.vue')
    };
    
    return () => {
      const componentSpec = componentMap[props.type];
      const resolvedComponent = resolveDynamicComponent(componentSpec);
      
      return h(resolvedComponent, props.config);
    };
  }
});

// Plugin-based component resolution
const PluginRenderer = defineComponent({
  props: {
    pluginName: String,
    componentName: String
  },
  
  setup(props) {
    return () => {
      // Resolve from plugin registry
      const pluginComponent = window.plugins?.[props.pluginName]?.[props.componentName];
      const resolvedComponent = resolveDynamicComponent(pluginComponent || 'div');
      
      return h(resolvedComponent);
    };
  }
});

// Asset resolution with fallbacks
function useComponentWithFallback(primaryName: string, fallbackName: string) {
  return computed(() => {
    const primary = resolveComponent(primaryName);
    if (typeof primary !== 'string') {
      return primary;
    }
    
    const fallback = resolveComponent(fallbackName);
    return typeof fallback !== 'string' ? fallback : 'div';
  });
}

// Lazy directive resolution
function useLazyDirective(name: string) {
  const directive = ref<Directive | null>(null);
  
  onMounted(() => {
    directive.value = resolveDirective(name) || null;
  });
  
  return directive;
}

// Dynamic asset registry
class DynamicAssetRegistry {
  private components = new Map<string, Component>();
  private directives = new Map<string, Directive>();
  
  registerComponent(name: string, component: Component) {
    this.components.set(name, component);
  }
  
  registerDirective(name: string, directive: Directive) {
    this.directives.set(name, directive);
  }
  
  resolveComponent(name: string) {
    return this.components.get(name) || resolveComponent(name);
  }
  
  resolveDirective(name: string) {
    return this.directives.get(name) || resolveDirective(name);
  }
}

const registry = new DynamicAssetRegistry();

// Theme-based component resolution
function useThemeComponent(baseName: string) {
  const theme = inject('theme', 'default');
  
  return computed(() => {
    const themedName = `${baseName}-${theme}`;
    const themedComponent = resolveComponent(themedName);
    
    // Fallback to base component if themed version not found
    if (typeof themedComponent === 'string') {
      return resolveComponent(baseName);
    }
    
    return themedComponent;
  });
}

// Async component resolution
async function resolveAsyncComponent(name: string): Promise<Component | null> {
  const syncComponent = resolveComponent(name);
  
  if (typeof syncComponent !== 'string') {
    return syncComponent;
  }
  
  // Try to load async
  try {
    const module = await import(`./components/${name}.vue`);
    return module.default;
  } catch {
    return null;
  }
}

// Safe component resolution with validation
function useSafeComponent(name: string, validator?: (component: any) => boolean) {
  return computed(() => {
    const component = resolveComponent(name);
    
    if (typeof component === 'string') {
      console.warn(`Component "${name}" not found`);
      return null;
    }
    
    if (validator && !validator(component)) {
      console.warn(`Component "${name}" failed validation`);
      return null;
    }
    
    return component;
  });
}

// Directive resolution with type checking
function useSafeDirective(name: string): Ref<Directive | null> {
  const directive = ref<Directive | null>(null);
  
  watchEffect(() => {
    const resolved = resolveDirective(name);
    
    if (resolved && typeof resolved === 'object') {
      directive.value = resolved;
    } else {
      console.warn(`Directive "v-${name}" not found`);
      directive.value = null;
    }
  });
  
  return directive;
}

// Resolution with dependency tracking
function useTrackedResolution() {
  const resolvedComponents = reactive(new Map<string, Component>());
  const resolvedDirectives = reactive(new Map<string, Directive>());
  
  const getComponent = (name: string) => {
    if (!resolvedComponents.has(name)) {
      const component = resolveComponent(name);
      if (typeof component !== 'string') {
        resolvedComponents.set(name, component);
      }
    }
    return resolvedComponents.get(name);
  };
  
  const getDirective = (name: string) => {
    if (!resolvedDirectives.has(name)) {
      const directive = resolveDirective(name);
      if (directive) {
        resolvedDirectives.set(name, directive);
      }
    }
    return resolvedDirectives.get(name);
  };
  
  return {
    getComponent,
    getDirective,
    resolvedComponents: readonly(resolvedComponents),
    resolvedDirectives: readonly(resolvedDirectives)
  };
}

type ConcreteComponent = ComponentOptions | FunctionalComponent;

type VNodeTypes = 
  | string 
  | VNode 
  | Component 
  | typeof Text 
  | typeof Static 
  | typeof Comment 
  | typeof Fragment;

interface Directive<T = any, V = any> {
  created?(el: T, binding: DirectiveBinding<V>, vnode: VNode, prevVNode: VNode | null): void;
  beforeMount?(el: T, binding: DirectiveBinding<V>, vnode: VNode, prevVNode: VNode | null): void;
  mounted?(el: T, binding: DirectiveBinding<V>, vnode: VNode, prevVNode: VNode | null): void;
  beforeUpdate?(el: T, binding: DirectiveBinding<V>, vnode: VNode, prevVNode: VNode): void;
  updated?(el: T, binding: DirectiveBinding<V>, vnode: VNode, prevVNode: VNode): void;
  beforeUnmount?(el: T, binding: DirectiveBinding<V>, vnode: VNode, prevVNode: VNode | null): void;
  unmounted?(el: T, binding: DirectiveBinding<V>, vnode: VNode, prevVNode: VNode | null): void;
}

interface DirectiveBinding<V = any> {
  instance: ComponentPublicInstance | null;
  value: V;
  oldValue: V | null;
  arg?: string;
  modifiers: Record<string, boolean>;
  dir: ObjectDirective<any, V>;
}

type FunctionalComponent<P = {}, E extends EmitsOptions = {}> = {
  (props: P, ctx: Omit<SetupContext<E>, 'expose'>): any;
  props?: ComponentPropsOptions<P>;
  emits?: E | (keyof E)[];
  inheritAttrs?: boolean;
  displayName?: string;
};