import js from "@eslint/js"
import tseslint from "typescript-eslint"
import unusedImports from "eslint-plugin-unused-imports"

export default tseslint.config(
  {
    ignores: ["node_modules/**", "dist/**", ".repos/**", "*.frame.txt", "*.ansi"],
  },
  js.configs.recommended,
  ...tseslint.configs.recommendedTypeChecked,
  {
    files: ["**/*.ts", "**/*.tsx"],
    languageOptions: {
      parserOptions: {
        projectService: true,
        tsconfigRootDir: import.meta.dirname,
      },
    },
    plugins: {
      "unused-imports": unusedImports,
    },
    rules: {
      // Boundary code bans these; the Solid view follows TS-strict but is not Effect.
      "@typescript-eslint/no-explicit-any": "error",
      "@typescript-eslint/consistent-type-imports": ["error", { prefer: "type-imports" }],
      "@typescript-eslint/no-unused-vars": "off",
      "@typescript-eslint/no-non-null-assertion": "error",
      "unused-imports/no-unused-imports": "error",
      "unused-imports/no-unused-vars": [
        "error",
        { vars: "all", varsIgnorePattern: "^_", args: "after-used", argsIgnorePattern: "^_" },
      ],

      // --- Type-aware, high-value: ON as ERROR ---
      "@typescript-eslint/no-floating-promises": "error",
      "@typescript-eslint/no-misused-promises": "error",
      "@typescript-eslint/await-thenable": "error",

      // --- Phase 2: promote to error after Schema decode replaces the casts ---
      // The cast/`unknown` family fires on the `as`/`unknown` boundary code that
      // Phase 2 will replace with Schema decoding. Deferred to 'warn' so the gate
      // stays green (eslint exits 0 on warnings) without masking the real signal.
      "@typescript-eslint/no-unsafe-assignment": "warn",
      "@typescript-eslint/no-unsafe-member-access": "warn",
      "@typescript-eslint/no-unsafe-argument": "warn",
      "@typescript-eslint/no-unsafe-return": "warn",
      "@typescript-eslint/no-unsafe-call": "warn",
      "@typescript-eslint/no-unnecessary-condition": "warn",
      "@typescript-eslint/no-base-to-string": "warn",
      "@typescript-eslint/restrict-template-expressions": "warn",
      // `no-unnecessary-type-assertion` is the cast family (the one site is a
      // `effect as Effect.Effect<…>` test cast); `require-await` fires only on
      // async test-mock fns satisfying an async signature. Both are recommended
      // -TypeChecked errors by default — demote to 'warn' to keep the gate green
      // until Phase 2 (Schema decode) removes the casts.
      "@typescript-eslint/no-unnecessary-type-assertion": "warn",
      "@typescript-eslint/require-await": "warn",
    },
  },
  {
    // Tests keep their `!` non-null assertions (fixtures with known-present data).
    files: ["**/*.test.ts", "**/*.test.tsx"],
    rules: {
      "@typescript-eslint/no-non-null-assertion": "off",
    },
  },
  {
    // The eslint flat config is JS-only; the typed parser project service does not
    // cover it, so disable type-checking there to avoid parser errors.
    files: ["eslint.config.mjs"],
    ...tseslint.configs.disableTypeChecked,
  },
)