import { readdirSync, readFileSync } from "node:fs";
import { join, relative } from "node:path";
import { describe, expect, it } from "vitest";

const ROOTS = ["src/app/admin", "src/components/admin"];
const GRAPHICAL_ALLOWLIST = [
	"src/app/admin/favicon/favicon-generator.tsx",
	"src/app/admin/import/clone/import-clone-client.tsx",
	"src/app/admin/import/furni/import-furni-client.tsx",
	"src/components/admin/catalog/items-shop-preview.tsx",
];

const DATA_COLOR_ALLOWLIST = [
	"src/app/admin/alerts/page.tsx",
	"src/app/admin/banners/banners-manager.tsx",
	"src/app/admin/events/events-table.tsx",
	"src/app/admin/events/types/event-types-manager.tsx",
	"src/app/admin/favicon/favicon-generator.tsx",
	"src/app/admin/help-questions/new/page.tsx",
	"src/app/admin/help-questions/[id]/page.tsx",
	"src/app/admin/prefixes/prefixes-client.tsx",
	"src/app/admin/tags/page.tsx",
	"src/app/admin/teams/page.tsx",
	"src/app/admin/theme/page.tsx",
];

const PUBLIC_STRUCTURAL_TOKEN =
	/var\(--(?:color-(?:background|surface|dropdown|navbar|navbar-text|text|text-muted|primary|primary-hover)|border-subtle|border-color)\)/g;
const HARDCODED_UI_PALETTE =
	/(?:text|bg|border|ring|from|to|via)-(?:slate|gray|zinc|neutral|stone|red|orange|amber|yellow|lime|green|emerald|teal|cyan|sky|blue|indigo|violet|purple|fuchsia|pink|rose)-(?:[1-9]00|50)(?:\/\d+)?/g;

function sourceFiles(directory: string): string[] {
	return readdirSync(directory, { withFileTypes: true }).flatMap((entry) => {
		const path = join(directory, entry.name);
		return entry.isDirectory()
			? sourceFiles(path)
			: /\.(?:ts|tsx)$/.test(entry.name)
				? [path]
				: [];
	});
}

describe("admin theme source audit", () => {
	it("keeps ordinary admin text theme-aware", () => {
		const violations: string[] = [];
		for (const root of ROOTS) {
			for (const file of sourceFiles(root)) {
				const normalized = relative(process.cwd(), file).replaceAll("\\", "/");
				if (GRAPHICAL_ALLOWLIST.includes(normalized)) continue;
				const source = readFileSync(file, "utf8");
				const risky = source.match(
					/(?:text-(?:gray|slate)-(?:400|500|600|700|800|900)|text-white(?:\/\d+)?|\)\]0)/g,
				);
				if (risky)
					violations.push(`${normalized}: ${[...new Set(risky)].join(", ")}`);
			}
		}
		expect(violations).toEqual([]);
	});

	it("keeps admin chrome independent from public structural colors", () => {
		const violations: string[] = [];
		for (const root of ROOTS) {
			for (const file of sourceFiles(root)) {
				const normalized = relative(process.cwd(), file).replaceAll("\\", "/");
				if (normalized.endsWith("admin-theme-source-audit.test.ts")) continue;
				const source = readFileSync(file, "utf8");
				const risky = [
					...(source.match(PUBLIC_STRUCTURAL_TOKEN) ?? []),
					...(source.match(HARDCODED_UI_PALETTE) ?? []),
				];
				const filtered = [
					...DATA_COLOR_ALLOWLIST,
					...GRAPHICAL_ALLOWLIST,
				].includes(normalized)
					? risky.filter((match) => match.startsWith("var("))
					: risky;
				if (filtered.length)
					violations.push(
						`${normalized}: ${[...new Set(filtered)].join(", ")}`,
					);
			}
		}
		expect(violations).toEqual([]);
	});

	it("keeps every import workflow on semantic admin status and overlay colors", () => {
		const violations = sourceFiles("src/app/admin/import").flatMap((file) => {
			const source = readFileSync(file, "utf8");
			const risky =
				source.match(/rgba?\([^)]*\)|(?:bg-black|text-white)(?:\/\d+)?/g) ?? [];
			return risky.length
				? [
						`${relative(process.cwd(), file).replaceAll("\\", "/")}: ${[...new Set(risky)].join(", ")}`,
					]
				: [];
		});
		expect(violations).toEqual([]);
	});
});