// Vitest 配置
// 依据：02-architecture-design.md §13 测试策略分层
import { defineConfig } from "vitest/config";
import react from "@vitejs/plugin-react";
import { resolve } from "node:path";

export default defineConfig({
  plugins: [react()],
  resolve: {
    alias: {
      "@": resolve(__dirname, "./src"),
    },
  },
  test: {
    environment: "jsdom",
    globals: true,
    setupFiles: ["./src/test/setup.ts"],
    include: [
      "src/**/*.{test,spec}.{ts,tsx}",
      "src/**/__tests__/**/*.{ts,tsx}",
    ],
    exclude: ["node_modules", ".next", "e2e"],
    coverage: {
      provider: "v8",
      reporter: ["text", "json", "html"],
      include: ["src/**/*.{ts,tsx}"],
      exclude: [
        "src/**/*.d.ts",
        "src/test/**",
        "src/mocks/**",
        "src/types/**",
        "src/**/*.config.{ts,tsx}",
        // Next.js App Router pages：由 MSW 集成测试 + E2e 覆盖，不纳入单元测试覆盖率
        "src/app/**/page.tsx",
        "src/app/**/layout.tsx",
        "src/app/**/providers.tsx",
        "src/app/**/error.tsx",
        "src/app/**/loading.tsx",
        "src/app/**/not-found.tsx",
        "src/app/api/**",
        // 可观测性 optional modules：依赖 optionalDependencies（@opentelemetry/*、web-vitals、axe-core）
        // 这些模块用 dynamic import 在运行时按需加载，单元测试不覆盖
        "src/lib/observability/**",
        // PWA Service Worker 注册（生产环境 only）
        "src/components/WebVitalsInitializer.tsx",
        // Next.js middleware（Edge Runtime，单元测试不覆盖）
        "src/middleware.ts",
        // ErrorBoundary：React 渲染异常兜底，需 React Error Boundary 测试 harness
        "src/components/ErrorBoundary.tsx",
      ],
      thresholds: {
        statements: 85,
        branches: 75,
        functions: 85,
        lines: 85,
      },
    },
  },
});