import prettier from 'eslint-config-prettier';
import { fileURLToPath } from 'node:url';
import { includeIgnoreFile } from '@eslint/compat';
import js from '@eslint/js';
import svelte from 'eslint-plugin-svelte';
import { defineConfig } from 'eslint/config';
import globals from 'globals';
import ts from 'typescript-eslint';
import svelteConfig from './svelte.config.js';

const gitignorePath = fileURLToPath(new URL('./.gitignore', import.meta.url));

export default defineConfig(
	includeIgnoreFile(gitignorePath),
	{ ignores: ['src/paraglide/**', '.svelte-kit.old/**'] },
	js.configs.recommended,
	...ts.configs.recommended,
	...svelte.configs.recommended,
	prettier,
	...svelte.configs.prettier,
	{
		languageOptions: {
			globals: { ...globals.browser, ...globals.node }
		},
		rules: {
			// typescript-eslint strongly recommend that you do not use the no-undef lint rule on TypeScript projects.
			// see: https://typescript-eslint.io/troubleshooting/faqs/eslint/#i-get-errors-from-the-no-undef-rule-about-global-variables-not-being-defined-even-though-there-are-no-typescript-errors
			'no-undef': 'off',
			// This rule is designed for Svelte 5's own routing system using resolve().
			// In SvelteKit, <a href> and goto() from $app/navigation are the correct patterns — resolve() is not needed.
			'svelte/no-navigation-without-resolve': 'off'
		}
	},
	{
		files: ['**/*.svelte', '**/*.svelte.ts', '**/*.svelte.js'],
		languageOptions: {
			parserOptions: {
				projectService: true,
				extraFileExtensions: ['.svelte'],
				parser: ts.parser,
				svelteConfig
			}
		},
		rules: {
			// text-accent resolves to #a1dcd8 in light mode (1.52:1 on white — WCAG fail).
			// layout.css documents it as decorative-only (borders, icon tints, bg fills).
			// For any text label use text-primary or text-ink instead. This rule catches
			// the pattern where text-accent appears inside a JavaScript string literal
			// (e.g. conditional ternary class expressions in Svelte templates).
			'no-restricted-syntax': [
				'error',
				{
					selector: 'Literal[value=/\\btext-accent\\b/]',
					message:
						'text-accent is decorative-only (#a1dcd8 in light mode = 1.52:1 contrast — WCAG fail). Use text-primary or text-ink-2 for text labels.'
				},
				{
					selector: 'TemplateLiteral > TemplateElement[value.raw=/\\btext-accent\\b/]',
					message:
						'text-accent is decorative-only (#a1dcd8 in light mode = 1.52:1 contrast — WCAG fail). Use text-primary or text-ink-2 for text labels.'
				}
			]
		}
	}
);