import { expect, test } from "bun:test";
import { analyzeHtml } from "../modules/analysis/index.ts";
import { App } from "../core/app.ts";
import { terserIntegration, htmlMinifyIntegration, imageOptimizationIntegration } from "../integrations/optimize.ts";

test("accessibility scoring reports semantics, alpha contrast and visual-effect uncertainty", async () => {
	const html = '<html lang="en"><head><title>Audit</title><style>body{background:white;color:black}.faint{color:rgba(0,0,0,.1)}.blur{filter:blur(1px);backdrop-filter:blur(4px)}</style></head><body><input><p class="faint">Low contrast</p><p class="blur">Filtered text</p><img src="missing.png"></body></html>';
	const [report] = await analyzeHtml(html, "accessible", { viewports: [{ width: 390, height: 844 }] });
	expect(report!.findings.map((finding) => finding.rule)).toContain("control-name");
	expect(report!.findings.map((finding) => finding.rule)).toContain("text-contrast");
	expect(report!.findings.map((finding) => finding.rule)).toContain("visibility-effects");
	expect(report!.score).toBeLessThan(100);
	expect(report!.findings.find((finding) => finding.rule === "visibility-effects")!.severity).toBe("review");
});

test("overflow analysis distinguishes intentional scrolling and clipped content", async () => {
	const html = '<html><head><style>body{margin:0}.wide{width:700px}.scroll{width:200px;overflow:auto}.clip{width:100px;height:10px;overflow:hidden}</style></head><body><div class="wide">Wide</div><div class="scroll"><div class="wide">Scrollable</div></div><div class="clip"><div style="height:200px">Clipped</div></div></body></html>';
	const reports = await analyzeHtml(html, "overflow");
	expect(reports[0]!.findings.filter((finding) => finding.rule === "viewport-overflow")).toHaveLength(0);
	expect(reports[1]!.findings.filter((finding) => finding.rule === "viewport-overflow")).toHaveLength(1);
	expect(reports[1]!.findings.map((finding) => finding.rule)).toContain("clipping");
});

test("async optimization runs on staged assets and preserves binary image input", async () => {
	let bytes: number[] = [];
	const app = await App.create({ integrations: [terserIntegration(), htmlMinifyIntegration(), imageOptimizationIntegration({ async optimize(input) { bytes = [...input]; return new Uint8Array([9, 8]); } })] });
	const js = await app.transformAsset({ path: "app.js", contentType: "text/javascript", content: 'const url = "https://example.test"; console.log(url);' });
	expect(String(js.content)).toContain("https://example.test");
	const html = await app.transformAsset({ path: "index.html", contentType: "text/html", content: '<html><body>   <p>Text</p> </body></html>' });
	expect(String(html.content)).not.toContain("   ");
	const image = await app.transformAsset({ path: "image.png", contentType: "image/png", content: new Uint8Array([0, 255, 128]) });
	expect(bytes).toEqual([0, 255, 128]);
	expect([...image.content as Uint8Array]).toEqual([9, 8]);
});