amberjs 1.17.0

// React 运行时支持
// Stage 91 Phase 3.3.1 - React 框架集成
//
/// 提供 React 应用完整支持，包括 JSX 转换、组件渲染、水合等
use super::*;
use serde::{Deserialize, Serialize};
use std::collections::HashMap;
use std::path::PathBuf;
use std::collections::{BTreeMap};
/// React 运行时
#[derive(Debug)]
pub struct ReactRuntime {
    jsx_transformer: JsxTransformer,
    concurrent_scheduler: ConcurrentScheduler,
    hydration_engine: HydrationEngine,
    fiber_reconciler: FiberReconciler,
    hooks_manager: HooksManager,
    config: ReactConfig,
}
impl ReactRuntime {
    /// 创建新的 React 运行时
    pub fn new(config: ReactConfig) -> Self {
        Self {
            jsx_transformer: JsxTransformer::new(),
            concurrent_scheduler: ConcurrentScheduler::new(),
            hydration_engine: HydrationEngine::new(),
            fiber_reconciler: FiberReconciler::new(),
            hooks_manager: HooksManager::new(),
            config,
        }
    }
    /// 渲染组件
    pub async fn render_component(
        &self,
        component: &ReactComponent,
        props: Option<&serde_json::Value>,
        container: &str,
    ) -> Result<RenderResult, Box<dyn std::error::Error>> {
        // 1. 转换 JSX
        let jsx_code: _ = self.jsx_transformer.transform_jsx(&component.source_code)?;
        // 2. 编译组件
        let compiled_component: _ = self.compile_component(&jsx_code, component)?;
        // 3. 创建 Fiber 节点
        let fiber_root: _ = self.fiber_reconciler.create_fiber_root(&compiled_component, props)?;
        // 4. 渲染到虚拟 DOM
        let vdom: _ = self.fiber_reconciler.render_fiber_tree(fiber_root)?;
        // 5. 生成 HTML
        let html: _ = self.generate_html(&vdom, container)?;
        let render_result: _ = RenderResult {
            html,
            head: self.generate_head(&compiled_component),
            styles: self.generate_styles(&vdom)?,
            scripts: self.generate_scripts(&compiled_component)?,
            data: Some(self.extract_data(&vdom)?),
        };
        Ok(render_result)
    }
    /// 水合应用
    pub async fn hydrate_app(
        &self,
        app_id: &str,
        initial_data: &serde_json::Value,
    ) -> Result<(), Box<dyn std::error::Error>> {
        // 1. 从服务器获取 HTML
        let server_html: _ = self.get_server_rendered_html(app_id)?;
        // 2. 绑定事件监听器
        self.hydration_engine.bind_event_listeners(app_id, &server_html)?;
        // 3. 恢复组件状态
        self.hydration_engine.restore_component_state(initial_data)?;
        // 4. 启动增量渲染
        self.concurrent_scheduler.start();
        Ok(())
    }
    /// 服务端渲染 (SSR)
    pub async fn render_to_string(
        &self,
        component: &ReactComponent,
        props: Option<&serde_json::Value>,
    ) -> Result<String, Box<dyn std::error::Error>> {
        // 在服务器端渲染组件
        let render_result: _ = self.render_component(component, props, "root")?;
        Ok(render_result.html)
    }
    /// 编译组件
    fn compile_component(
        &self,
        jsx_code: &str,
        component: &ReactComponent,
    ) -> Result<CompiledComponent, Box<dyn std::error::Error>> {
        // 简化的编译过程
        // 实际实现需要完整的 Babel/TypeScript 编译
        let compiled: _ = CompiledComponent {
            name: component.name.clone(),
            code: jsx_code.to_string(),
            ast: None, // 简化实现
            dependencies: component.dependencies.clone(),
            exports: HashMap::new(),
        };
        Ok(compiled)
    }
    /// 生成 HTML
    fn generate_html(&self, vdom: &VirtualDom, container: &str) -> Result<String, Box<dyn std::error::Error>> {
        let mut html = String::new();
        html.push_str(&format!("<div id=\"{}\">", container));
        // 遍历虚拟 DOM 树生成 HTML
        html.push_str(&self.node_to_html(&vdom.root)?);
        html.push_str("</div>");
        Ok(html)
    }
    /// 将节点转换为 HTML
    fn node_to_html(&self, node: &VNode) -> Result<String, Box<dyn std::error::Error>> {
        match node.node_type {
            VNodeType::Text(ref text) => text.clone(),
            VNodeType::Element(ref element) => {
                let mut html = String::new();
                html.push_str(&format!("<{}", element.tag_name));
                // 添加属性
                for (key, value) in &element.props {
                    html.push_str(&format!(" {}=\"{}\"", key, value));
                }
                html.push('>');
                // 添加子元素
                for child in &element.children {
                    html.push_str(&self.node_to_html(child)?);
                }
                html.push_str(&format!("</{}>", element.tag_name));
                html
            }
            VNodeType::Fragment(ref nodes) => {
                let mut html = String::new();
                for node in nodes {
                    html.push_str(&self.node_to_html(node)?);
                }
                html
            }
        }
    }
    /// 生成头部
    fn generate_head(&self, component: &CompiledComponent) -> Option<String> {
        // 简化的头部生成
        Some(format!("<title>{}</title>", component.name))
    }
    /// 生成样式
    fn generate_styles(&self, vdom: &VirtualDom) -> Result<Vec<String>, Box<dyn std::error::Error>> {
        let mut styles = Vec::new();
        // 提取样式信息
        for node in &vdom.styles {
            styles.push(node.clone());
        }
        Ok(styles)
    }
    /// 生成脚本
    fn generate_scripts(&self, component: &CompiledComponent) -> Result<Vec<String>, Box<dyn std::error::Error>> {
        let mut scripts = Vec::new();
        // 添加水合脚本
        scripts.push(self.hydration_engine.get_hydration_script()?);
        // 添加组件脚本
        scripts.push(format!(
            "<script>window.ReactComponents = window.ReactComponents || {{}};</script>"
        ));
        Ok(scripts)
    }
    /// 提取数据
    fn extract_data(&self, vdom: &VirtualDom) -> Result<serde_json::Value, Box<dyn std::error::Error>> {
        // 提取组件状态和 props
        Ok(serde_json::json!({
            "state": vdom.state,
            "props": vdom.props
        }))
    }
    /// 获取服务器渲染的 HTML
    fn get_server_rendered_html(&self, app_id: &str) -> Result<String, Box<dyn std::error::Error>> {
        // 从服务器获取预渲染的 HTML
        // 简化实现
        Ok(format!("<div id=\"{}\"></div>", app_id))
    }
    /// 批量渲染组件
    pub async fn batch_render(
        &self,
        components: &[ReactComponent],
    ) -> Result<Vec<RenderResult>, Box<dyn std::error::Error>> {
        let mut results = Vec::new();
        // 并发渲染多个组件
        for component in components {
            match self.render_component(component, None, "root").await {
                Ok(result) => results.push(result),
                Err(e) => {
                    eprintln!("渲染组件失败: {:?}", e);
                    results.push(RenderResult {
                        html: format!("<!-- 渲染错误: {} -->", e),
                        head: None,
                        styles: Vec::new(),
                        scripts: Vec::new(),
                        data: None,
                    });
                }
            }
        }
        Ok(results)
    }
}
/// React 配置
#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct ReactConfig {
    pub version: String,
    pub jsx_runtime: JsxRuntime,
    pub concurrent_features: bool,
    pub strict_mode: bool,
    pub development_mode: bool,
    pub enable_source_maps: bool,
}
impl Default for ReactConfig {
    fn default() -> Self {
        Self {
            version: "18.0.0".to_string(),
            jsx_runtime: JsxRuntime::Automatic,
            concurrent_features: true,
            strict_mode: true,
            development_mode: false,
            enable_source_maps: true,
        }
    }
}
/// JSX 运行时
#[derive(Debug, Clone, Copy, PartialEq, Eq, Serialize, Deserialize)]
pub enum JsxRuntime {
    Classic,
    Automatic,
}
/// React 组件
#[derive(Debug, Clone)]
pub struct ReactComponent {
    pub name: String,
    pub source_code: String,
    pub props_type: Option<String>,
    pub state_type: Option<String>,
    pub dependencies: Vec<String>,
}
/// 编译后的组件
#[derive(Debug, Clone)]
pub struct CompiledComponent {
    pub name: String,
    pub code: String,
    pub ast: Option<serde_json::Value>,
    pub dependencies: Vec<String>,
    pub exports: HashMap<String, String>,
}
/// 虚拟 DOM
#[derive(Debug, Clone)]
pub struct VirtualDom {
    pub root: VNode,
    pub state: serde_json::Value,
    pub props: serde_json::Value,
    pub styles: Vec<String>,
}
/// 虚拟节点
#[derive(Debug, Clone)]
pub struct VNode {
    pub node_type: VNodeType,
}
/// 节点类型
#[derive(Debug, Clone)]
pub enum VNodeType {
    Text(String),
    Element(VElement),
    Fragment(Vec<VNode>),
}
/// 虚拟元素
#[derive(Debug, Clone)]
pub struct VElement {
    pub tag_name: String,
    pub props: HashMap<String, String>,
    pub children: Vec<VNode>,
}
/// JSX 转换器
#[derive(Debug)]
pub struct JsxTransformer {
    // 转换器配置
}
impl JsxTransformer {
    /// 创建新的 JSX 转换器
    pub fn new() -> Self {
        Self {}
    }
    /// 转换 JSX
    pub fn transform_jsx(&self, source: &str) -> Result<String, Box<dyn std::error::Error>> {
        // 简化的 JSX 转换
        // 实际实现需要完整的 JSX 解析和转换
        let transformed: _ = source
            .replace("React.createElement", "h")
            .replace("__jsx", "h");
        Ok(transformed)
    }
}
/// 并发调度器
#[derive(Debug)]
pub struct ConcurrentScheduler {
    // 调度器状态
}
impl ConcurrentScheduler {
    /// 创建新的并发调度器
    pub fn new() -> Self {
        Self {}
    }
    /// 启动调度器
    pub fn start(&self) {
        // 启动并发渲染
    }
    /// 停止调度器
    pub fn stop(&self) {
        // 停止并发渲染
    }
}
/// 水合引擎
#[derive(Debug)]
pub struct HydrationEngine {
    // 水合引擎状态
}
impl HydrationEngine {
    /// 创建新的水合引擎
    pub fn new() -> Self {
        Self {}
    }
    /// 绑定事件监听器
    pub fn bind_event_listeners(&self, app_id: &str, html: &str) -> Result<(), Box<dyn std::error::Error>> {
        // 在 HTML 中绑定事件监听器
        Ok(())
    }
    /// 恢复组件状态
    pub fn restore_component_state(&self, initial_data: &serde_json::Value) -> Result<(), Box<dyn std::error::Error>> {
        // 从初始数据恢复组件状态
        Ok(())
    }
    /// 获取水合脚本
    pub fn get_hydration_script(&self) -> Result<String, Box<dyn std::error::Error>> {
        Ok(r#"<script>
(function() {
    // 水合逻辑
    console.log('React 应用已水合');
})();
</script>"#.to_string())
    }
}
/// Fiber 协调器
#[derive(Debug)]
pub struct FiberReconciler {
    // 协调器状态
}
impl FiberReconciler {
    /// 创建新的 Fiber 协调器
    pub fn new() -> Self {
        Self {}
    }
    /// 创建 Fiber 根节点
    pub fn create_fiber_root(
        &self,
        component: &CompiledComponent,
        props: Option<&serde_json::Value>,
    ) -> Result<serde_json::Value, Box<dyn std::error::Error>> {
        // 创建 Fiber 根节点
        Ok(serde_json::json!({
            "type": "root",
            "component": component.name,
            "props": props
        }))
    }
    /// 渲染 Fiber 树
    pub fn render_fiber_tree(
        &self,
        fiber_root: &serde_json::Value,
    ) -> Result<VirtualDom, Box<dyn std::error::Error>> {
        // 渲染 Fiber 树到虚拟 DOM
        let vdom: _ = VirtualDom {
            root: VNode {
                node_type: VNodeType::Element(VElement {
                    tag_name: "div".to_string(),
                    props: HashMap::new(),
                    children: Vec::new(),
                }),
            },
            state: serde_json::json!({}),
            props: serde_json::json!({}),
            styles: Vec::new(),
        };
        Ok(vdom)
    }
}
/// Hooks 管理器
#[derive(Debug)]
pub struct HooksManager {
    // Hooks 管理器状态
}
impl HooksManager {
    /// 创建新的 Hooks 管理器
    pub fn new() -> Self {
        Self {}
    }
    /// 注册 Hook
    pub fn register_hook(&self, hook_name: &str, hook_impl: &str) {
        // 注册 Hook 实现
    }
    /// 获取 Hook
    pub fn get_hook(&self, hook_name: &str) -> Option<String> {
        // 获取 Hook 实现
        None
    }
}