webadmin系统设置

server/dukang-api/src/common/system-config/system-config.env.ts

@@ -0,0 +1,47 @@
+import { resolve } from 'path';
+import { PrismaClient } from '@prisma/client';
+import { SYSTEM_CONFIG_KEY_SET } from './system-config.registry';
+
+function apiRoot() {
+  return resolve(__dirname, '..', '..');
+}
+
+export function resolveEnvFilePath() {
+  const isProduction = (process.env.NODE_ENV ?? 'development') === 'production';
+  return resolve(apiRoot(), isProduction ? '.env.production' : '.env');
+}
+
+/** 启动前从 DB 覆盖 process.env（在 Nest 创建前调用） */
+export async function preloadSystemConfigEnv(): Promise<number> {
+  const prisma = new PrismaClient();
+  try {
+    const rows = await prisma.systemConfig.findMany();
+    for (const row of rows) {
+      if (SYSTEM_CONFIG_KEY_SET.has(row.configKey)) {
+        process.env[row.configKey] = row.value;
+      }
+    }
+    return rows.length;
+  } catch (error) {
+    if (
+      typeof error === 'object' &&
+      error !== null &&
+      'code' in error &&
+      (error as { code?: string }).code === 'P2021'
+    ) {
+      console.warn('[config] system_config 表不存在，跳过 DB 预加载');
+      return 0;
+    }
+    throw error;
+  } finally {
+    await prisma.$disconnect();
+  }
+}
+
+export function applyEnvOverlay(values: Record<string, string>) {
+  for (const [key, value] of Object.entries(values)) {
+    if (SYSTEM_CONFIG_KEY_SET.has(key)) {
+      process.env[key] = value;
+    }
+  }
+}