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| 1 | +use async_trait::async_trait; |
| 2 | +use log::{error, info}; |
| 3 | +use serde::{Deserialize, Serialize}; |
| 4 | +use std::collections::HashMap; |
| 5 | +use std::path::PathBuf; |
| 6 | +use tauri::{AppHandle, Emitter}; |
| 7 | + |
| 8 | +// 环境版本信息 |
| 9 | +#[derive(Debug, Serialize, Deserialize, Clone)] |
| 10 | +pub struct EnvironmentVersion { |
| 11 | + pub version: String, |
| 12 | + pub download_url: String, |
| 13 | + pub install_path: Option<String>, |
| 14 | + pub is_installed: bool, |
| 15 | + pub size: Option<u64>, |
| 16 | + pub release_date: Option<String>, |
| 17 | +} |
| 18 | + |
| 19 | +// 环境管理器响应 |
| 20 | +#[derive(Debug, Serialize, Deserialize)] |
| 21 | +pub struct EnvironmentInfo { |
| 22 | + pub language: String, |
| 23 | + pub current_version: Option<String>, |
| 24 | + pub installed_versions: Vec<EnvironmentVersion>, |
| 25 | + pub available_versions: Vec<EnvironmentVersion>, |
| 26 | +} |
| 27 | + |
| 28 | +// 下载进度事件 |
| 29 | +#[derive(Debug, Serialize, Clone)] |
| 30 | +pub struct DownloadProgress { |
| 31 | + pub language: String, |
| 32 | + pub version: String, |
| 33 | + pub downloaded: u64, |
| 34 | + pub total: u64, |
| 35 | + pub percentage: f64, |
| 36 | + pub status: DownloadStatus, |
| 37 | +} |
| 38 | + |
| 39 | +#[derive(Debug, Serialize, Clone)] |
| 40 | +#[serde(rename_all = "lowercase")] |
| 41 | +pub enum DownloadStatus { |
| 42 | + Downloading, |
| 43 | + Extracting, |
| 44 | + Installing, |
| 45 | + Completed, |
| 46 | + _Failed, |
| 47 | +} |
| 48 | + |
| 49 | +// 语言环境提供者特征 |
| 50 | +#[async_trait] |
| 51 | +pub trait EnvironmentProvider: Send + Sync { |
| 52 | + // 获取语言名称 |
| 53 | + fn get_language(&self) -> &'static str; |
| 54 | + |
| 55 | + // 获取可用版本列表 |
| 56 | + async fn fetch_available_versions(&self) -> Result<Vec<EnvironmentVersion>, String>; |
| 57 | + |
| 58 | + // 获取已安装版本列表 |
| 59 | + async fn get_installed_versions(&self) -> Result<Vec<EnvironmentVersion>, String>; |
| 60 | + |
| 61 | + // 下载并安装指定版本 |
| 62 | + async fn download_and_install( |
| 63 | + &self, |
| 64 | + version: &str, |
| 65 | + app_handle: AppHandle, |
| 66 | + ) -> Result<String, String>; |
| 67 | + |
| 68 | + // 切换到指定版本 |
| 69 | + async fn switch_version(&self, version: &str) -> Result<(), String>; |
| 70 | + |
| 71 | + // 获取当前激活的版本 |
| 72 | + async fn get_current_version(&self) -> Result<Option<String>, String>; |
| 73 | + |
| 74 | + // 获取安装目录 |
| 75 | + #[allow(dead_code)] |
| 76 | + fn get_install_dir(&self) -> PathBuf; |
| 77 | +} |
| 78 | + |
| 79 | +// 环境管理器 |
| 80 | +pub struct EnvironmentManager { |
| 81 | + providers: HashMap<String, Box<dyn EnvironmentProvider>>, |
| 82 | +} |
| 83 | + |
| 84 | +impl EnvironmentManager { |
| 85 | + pub fn new() -> Self { |
| 86 | + Self { |
| 87 | + providers: HashMap::new(), |
| 88 | + } |
| 89 | + } |
| 90 | + |
| 91 | + pub fn register_provider(&mut self, provider: Box<dyn EnvironmentProvider>) { |
| 92 | + let language = provider.get_language().to_string(); |
| 93 | + info!("注册环境提供者: {}", language); |
| 94 | + self.providers.insert(language, provider); |
| 95 | + } |
| 96 | + |
| 97 | + pub async fn get_environment_info(&self, language: &str) -> Result<EnvironmentInfo, String> { |
| 98 | + let provider = self |
| 99 | + .providers |
| 100 | + .get(language) |
| 101 | + .ok_or_else(|| format!("暂未支持 {} 语言,请前往 github 提供 issus", language))?; |
| 102 | + |
| 103 | + info!("获取 {} 环境信息", language); |
| 104 | + |
| 105 | + let current_version = provider.get_current_version().await.ok().flatten(); |
| 106 | + let installed_versions = provider.get_installed_versions().await.unwrap_or_default(); |
| 107 | + let available_versions = provider |
| 108 | + .fetch_available_versions() |
| 109 | + .await |
| 110 | + .unwrap_or_default(); |
| 111 | + |
| 112 | + Ok(EnvironmentInfo { |
| 113 | + language: language.to_string(), |
| 114 | + current_version, |
| 115 | + installed_versions, |
| 116 | + available_versions, |
| 117 | + }) |
| 118 | + } |
| 119 | + |
| 120 | + pub async fn download_and_install_version( |
| 121 | + &self, |
| 122 | + language: &str, |
| 123 | + version: &str, |
| 124 | + app_handle: AppHandle, |
| 125 | + ) -> Result<String, String> { |
| 126 | + let provider = self |
| 127 | + .providers |
| 128 | + .get(language) |
| 129 | + .ok_or_else(|| format!("暂未支持 {} 语言,请前往 github 提供 issus", language))?; |
| 130 | + |
| 131 | + info!("开始下载并安装 {} 版本 {}", language, version); |
| 132 | + provider.download_and_install(version, app_handle).await |
| 133 | + } |
| 134 | + |
| 135 | + pub async fn switch_version(&self, language: &str, version: &str) -> Result<(), String> { |
| 136 | + let provider = self |
| 137 | + .providers |
| 138 | + .get(language) |
| 139 | + .ok_or_else(|| format!("暂未支持 {} 语言,请前往 github 提供 issus", language))?; |
| 140 | + |
| 141 | + info!("切换 {} 到版本 {}", language, version); |
| 142 | + provider.switch_version(version).await |
| 143 | + } |
| 144 | + |
| 145 | + pub fn get_supported_languages(&self) -> Vec<String> { |
| 146 | + self.providers.keys().cloned().collect() |
| 147 | + } |
| 148 | +} |
| 149 | + |
| 150 | +// 辅助函数:发送下载进度事件 |
| 151 | +pub fn emit_download_progress( |
| 152 | + app_handle: &AppHandle, |
| 153 | + language: &str, |
| 154 | + version: &str, |
| 155 | + downloaded: u64, |
| 156 | + total: u64, |
| 157 | + status: DownloadStatus, |
| 158 | +) { |
| 159 | + let percentage = if total > 0 { |
| 160 | + (downloaded as f64 / total as f64) * 100.0 |
| 161 | + } else { |
| 162 | + 0.0 |
| 163 | + }; |
| 164 | + |
| 165 | + let progress = DownloadProgress { |
| 166 | + language: language.to_string(), |
| 167 | + version: version.to_string(), |
| 168 | + downloaded, |
| 169 | + total, |
| 170 | + percentage, |
| 171 | + status, |
| 172 | + }; |
| 173 | + |
| 174 | + if let Err(e) = app_handle.emit("env-download-progress", progress) { |
| 175 | + error!("发送下载进度事件失败: {}", e); |
| 176 | + } |
| 177 | +} |
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