78 lines
2.9 KiB
TypeScript
78 lines
2.9 KiB
TypeScript
import path from 'node:path';
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import { fileURLToPath } from 'node:url';
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import { config as loadEnv } from 'dotenv';
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import { z } from 'zod';
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const currentDir = path.dirname(fileURLToPath(import.meta.url));
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/**
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* packages/server 根目录。
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* 源码运行时为 src/config -> ../..；编译后为 dist/config -> ../..，两者一致。
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*/
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export const serverRoot = path.resolve(currentDir, '..', '..');
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// 显式按包根目录加载 .env，避免受启动时 cwd 影响
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loadEnv({ path: path.join(serverRoot, '.env') });
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const envSchema = z.object({
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NODE_ENV: z.enum(['development', 'test', 'production']).default('development'),
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PORT: z.coerce.number().int().min(1).max(65535).default(4000),
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DATABASE_PROVIDER: z.enum(['sqlite', 'mysql']).default('sqlite'),
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DATABASE_URL: z.string().min(1).default('file:./prisma/dev.db'),
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JWT_SECRET: z.string().min(16),
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JWT_EXPIRES_IN: z.string().default('7d'),
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CORS_ORIGIN: z.string().default('*'),
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BCRYPT_ROUNDS: z.coerce.number().int().min(4).max(15).default(10),
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DEFAULT_STUDENT_PASSWORD: z.string().min(6).default('123456'),
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TERM_START_DATE: z.string().default(''),
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LOG_LEVEL: z.enum(['debug', 'info', 'warn', 'error']).default('info'),
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});
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const parsed = envSchema.safeParse(process.env);
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if (!parsed.success) {
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const issues = parsed.error.issues
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.map((issue) => ` - ${issue.path.join('.') || '(root)'}: ${issue.message}`)
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.join('\n');
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throw new Error(`环境变量校验失败，请检查 packages/server/.env（可从 .env.example 复制）：\n${issues}`);
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}
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const raw = parsed.data;
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/** 把 file:./prisma/dev.db 解析为绝对路径，保证任何 cwd 下都指向同一个数据库文件 */
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function resolveSqliteUrl(url: string): string {
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if (!url.startsWith('file:')) return url;
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const filePath = url.slice('file:'.length);
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const absolute = path.isAbsolute(filePath) ? filePath : path.resolve(serverRoot, filePath);
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return `file:${absolute.replace(/\\/g, '/')}`;
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}
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const isSqlite = raw.DATABASE_PROVIDER === 'sqlite';
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export const env = {
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nodeEnv: raw.NODE_ENV,
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isProduction: raw.NODE_ENV === 'production',
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isDevelopment: raw.NODE_ENV === 'development',
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port: raw.PORT,
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databaseProvider: raw.DATABASE_PROVIDER,
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/** 已规范化为绝对路径（SQLite）/ 原始连接串（MySQL） */
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databaseUrl: isSqlite ? resolveSqliteUrl(raw.DATABASE_URL) : raw.DATABASE_URL,
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rawDatabaseUrl: raw.DATABASE_URL,
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jwtSecret: raw.JWT_SECRET,
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jwtExpiresIn: raw.JWT_EXPIRES_IN,
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/** true 表示允许所有来源，否则为白名单数组 */
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corsOrigins:
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raw.CORS_ORIGIN === '*'
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? true
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: raw.CORS_ORIGIN.split(',')
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.map((item) => item.trim())
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.filter(Boolean),
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bcryptRounds: raw.BCRYPT_ROUNDS,
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/** 新增学生时未指定密码时的初始密码 */
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defaultStudentPassword: raw.DEFAULT_STUDENT_PASSWORD,
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termStartDate: raw.TERM_START_DATE,
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logLevel: raw.LOG_LEVEL,
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serverRoot,
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} as const;
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export type AppEnv = typeof env;
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