// ESLint flat config（ESLint 9）。防回潮基建：锁定去重/抽取/合规成果，约束新代码。
// 策略：warn 基线——历史问题（如 exhaustive-deps）设 warn 不阻断提交，
// 新代码的 error 类问题（unused vars 等）强制清零。CI/pre-commit 只拦 error。
import js from "@eslint/js";
import tseslint from "typescript-eslint";
import reactHooks from "eslint-plugin-react-hooks";
import reactRefresh from "eslint-plugin-react-refresh";
import unusedImports from "eslint-plugin-unused-imports";
import globals from "globals";

export default tseslint.config(
  {
    // 忽略构建产物、依赖、配置脚本、JS shim。
    ignores: [
      "dist/**",
      "node_modules/**",
      "coverage/**",
      "**/*.config.{js,ts,mjs,cjs}",
      "scripts/**",
      "src/data/ossAssets.js",
    ],
  },
  js.configs.recommended,
  ...tseslint.configs.recommended,
  {
    files: ["**/*.{ts,tsx}"],
    languageOptions: {
      ecmaVersion: 2022,
      sourceType: "module",
      globals: {
        ...globals.browser,
        ...globals.es2022,
      },
    },
    plugins: {
      "react-hooks": reactHooks,
      "react-refresh": reactRefresh,
      "unused-imports": unusedImports,
    },
    rules: {
      ...reactHooks.configs.recommended.rules,
      // 历史问题：warn 不阻断，渐进清理。
      "react-hooks/exhaustive-deps": "warn",
      "@typescript-eslint/no-explicit-any": "warn",
      // 未使用 import：error 且可 autofix 自动删除（unused-imports 插件专长）。
      "@typescript-eslint/no-unused-vars": "off",
      "unused-imports/no-unused-imports": "error",
      // 未使用局部变量：warn 基线（不自动删，避免误删 dead code 有副作用的赋值）。
      "unused-imports/no-unused-vars": [
        "warn",
        { vars: "all", varsIgnorePattern: "^_", args: "after-used", argsIgnorePattern: "^_" },
      ],
      // 允许 warn/error（现有 console.warn/error 是有意的诊断输出）。
      "no-console": ["warn", { allow: ["warn", "error"] }],
      "react-refresh/only-export-components": ["warn", { allowConstantExport: true }],
    },
  },
  {
    // 测试文件：补 vitest 全局，避免 describe/it/expect 误报未定义。
    files: ["**/*.{test,spec}.{ts,tsx}"],
    languageOptions: {
      globals: {
        ...globals.node,
        describe: "readonly",
        it: "readonly",
        expect: "readonly",
        vi: "readonly",
        beforeEach: "readonly",
        afterEach: "readonly",
        beforeAll: "readonly",
        afterAll: "readonly",
      },
    },
  },
);