feat: migrate runtime backend to node server

2026-04-08 16:41:29 +08:00
parent 9d2fc9e4b8
commit a83841ff2d
70 changed files with 8239 additions and 1561 deletions
--- a/server-node/src/config.ts
+++ b/server-node/src/config.ts
@@ -0,0 +1,162 @@
+import fs from 'node:fs';
+import path from 'node:path';
+
+export type AppConfig = {
+  nodeEnv: string;
+  projectRoot: string;
+  publicDir: string;
+  logsDir: string;
+  dataDir: string;
+  sqlitePath: string;
+  serverAddr: string;
+  logLevel: 'fatal' | 'error' | 'warn' | 'info' | 'debug' | 'trace' | 'silent';
+  jwtSecret: string;
+  jwtExpiresIn: string;
+  jwtIssuer: string;
+  llm: {
+    baseUrl: string;
+    apiKey: string;
+    model: string;
+  };
+  dashScope: {
+    baseUrl: string;
+    apiKey: string;
+    imageModel: string;
+    requestTimeoutMs: number;
+  };
+};
+
+type LoadConfigOptions = {
+  env?: NodeJS.ProcessEnv;
+  projectRoot?: string;
+};
+
+function parseEnvContents(contents: string) {
+  return contents
+    .split(/\r?\n/u)
+    .reduce<Record<string, string>>((envMap, rawLine) => {
+      const line = rawLine.trim();
+      if (!line || line.startsWith('#')) {
+        return envMap;
+      }
+
+      const separatorIndex = line.indexOf('=');
+      if (separatorIndex < 0) {
+        return envMap;
+      }
+
+      const key = line.slice(0, separatorIndex).trim();
+      let value = line.slice(separatorIndex + 1).trim();
+
+      if (
+        (value.startsWith('"') && value.endsWith('"')) ||
+        (value.startsWith("'") && value.endsWith("'"))
+      ) {
+        value = value.slice(1, -1);
+      }
+
+      envMap[key] = value;
+      return envMap;
+    }, {});
+}
+
+function readEnvFile(filePath: string) {
+  if (!fs.existsSync(filePath)) {
+    return {};
+  }
+
+  return parseEnvContents(fs.readFileSync(filePath, 'utf8'));
+}
+
+function resolveDefaultProjectRoot() {
+  const cwd = process.cwd();
+  return path.basename(cwd) === 'server-node'
+    ? path.resolve(cwd, '..')
+    : cwd;
+}
+
+function readMergedEnv(projectRoot: string, processEnv: NodeJS.ProcessEnv) {
+  return {
+    ...readEnvFile(path.join(projectRoot, '.env.example')),
+    ...readEnvFile(path.join(projectRoot, '.env.local')),
+    ...processEnv,
+  };
+}
+
+function readString(
+  env: Record<string, string | undefined>,
+  key: string,
+  fallback: string,
+) {
+  const value = env[key]?.trim();
+  return value ? value : fallback;
+}
+
+function readPositiveInt(
+  env: Record<string, string | undefined>,
+  key: string,
+  fallback: number,
+) {
+  const parsed = Number(env[key]);
+  return Number.isFinite(parsed) && parsed > 0 ? Math.round(parsed) : fallback;
+}
+
+export function loadConfig(options: LoadConfigOptions = {}): AppConfig {
+  const projectRoot = options.projectRoot ?? resolveDefaultProjectRoot();
+  const env = readMergedEnv(projectRoot, options.env ?? process.env);
+  const logsDir = path.join(projectRoot, 'server-node', 'logs');
+  const dataDir = path.join(projectRoot, 'server-node', 'data');
+
+  return {
+    nodeEnv: readString(env, 'NODE_ENV', 'development'),
+    projectRoot,
+    publicDir: path.join(projectRoot, 'public'),
+    logsDir,
+    dataDir,
+    sqlitePath: readString(
+      env,
+      'SQLITE_PATH',
+      path.join(dataDir, 'genarrative.sqlite'),
+    ),
+    serverAddr: readString(env, 'NODE_SERVER_ADDR', ':8081'),
+    logLevel: readString(env, 'LOG_LEVEL', 'info') as AppConfig['logLevel'],
+    jwtSecret: readString(env, 'JWT_SECRET', 'genarrative-dev-secret'),
+    jwtExpiresIn: readString(env, 'JWT_EXPIRES_IN', '7d'),
+    jwtIssuer: readString(env, 'JWT_ISSUER', 'genarrative-server-node'),
+    llm: {
+      baseUrl: readString(
+        env,
+        'LLM_BASE_URL',
+        'https://ark.cn-beijing.volces.com/api/v3',
+      ),
+      apiKey:
+        env.LLM_API_KEY?.trim() ||
+        env.ARK_API_KEY?.trim() ||
+        env.VITE_LLM_API_KEY?.trim() ||
+        '',
+      model: readString(
+        env,
+        'LLM_MODEL',
+        readString(
+          env,
+          'VITE_LLM_MODEL',
+          'doubao-1-5-pro-32k-character-250715',
+        ),
+      ),
+    },
+    dashScope: {
+      baseUrl: readString(
+        env,
+        'DASHSCOPE_BASE_URL',
+        'https://dashscope.aliyuncs.com/api/v1',
+      ),
+      apiKey: env.DASHSCOPE_API_KEY?.trim() || '',
+      imageModel: readString(env, 'DASHSCOPE_IMAGE_MODEL', 'wan2.2-t2i-flash'),
+      requestTimeoutMs: readPositiveInt(
+        env,
+        'DASHSCOPE_IMAGE_REQUEST_TIMEOUT_MS',
+        150000,
+      ),
+    },
+  };
+}