import js from "@eslint/js";
import tseslint from "typescript-eslint";
import importPlugin from "eslint-plugin-import";

export default tseslint.config(
  {
    ignores: [
      "**/dist/**",
      "**/node_modules/**",
      "**/*.d.ts",
      "**/coverage/**",
    ],
  },
  js.configs.recommended,
  ...tseslint.configs.recommended,
  importPlugin.flatConfigs.recommended,
  importPlugin.flatConfigs.typescript,
  {
    languageOptions: {
      parserOptions: {
        projectService: true,
        ecmaVersion: 2020,
        sourceType: "module",
      },
    },
  },
  {
    files: ["**/*.ts", "**/*.tsx"],
    rules: {
      // --- Project Conventions ---
      quotes: ["error", "single", { avoidEscape: true }],
      "comma-dangle": ["error", "always-multiline"],
      indent: ["error", 2, { SwitchCase: 1 }],

      // --- TypeScript ---
      "@typescript-eslint/no-explicit-any": "warn",
      "@typescript-eslint/explicit-function-return-type": "off",
      "@typescript-eslint/explicit-module-boundary-types": "off",
      "@typescript-eslint/no-unused-vars": [
        "error",
        { argsIgnorePattern: "^_", varsIgnorePattern: "^_" },
      ],
      "@typescript-eslint/consistent-type-imports": [
        "error",
        { prefer: "type-imports" },
      ],
      "@typescript-eslint/no-non-null-assertion": "warn",

      // --- Import Ordering ---
      "import/order": [
        "error",
        {
          groups: [
            "builtin",
            "external",
            "internal",
            "parent",
            "sibling",
            "index",
            "object",
            "type",
          ],
          "newlines-between": "always",
          alphabetize: { order: "asc", caseInsensitive: true },
        },
      ],
      "import/no-unresolved": "off",
      "import/no-duplicates": "error",

      // --- General ---
      "no-console": "warn",
      "prefer-const": "error",
      "no-var": "error",
      eqeqeq: ["error", "always"],
    },
  },
  {
    files: ["**/*.test.ts", "**/*.spec.ts"],
    rules: {
      "no-console": "off",
      "@typescript-eslint/no-explicit-any": "off",
    },
  },
);