import test from "node:test";
import assert from "node:assert/strict";
import { once } from "node:events";
import { readFile } from "node:fs/promises";
import { setup } from "./helpers.js";
import { blankPlan } from "../shared/fields.js";
import { renderReportHtml } from "../shared/report.js";

const browserOptions = { skip: process.env.RUN_BROWSER_TESTS !== "1" };
async function session(t, appOptions = {}) {
	const { chromium } = await import("playwright");
	const { app, db } = await setup({}, appOptions);
	const server = app.listen(0, "127.0.0.1");
	await once(server, "listening");
	t.after(() => new Promise((r) => server.close(r)));
	const browser = await chromium.launch({
		headless: true,
		args: ["--no-sandbox"],
	});
	t.after(() => browser.close());
	const page = await browser.newPage({
		viewport: { width: 1440, height: 1100 },
	});
	const errors = [];
	page.on("pageerror", (e) => errors.push(e.message));
	const base = `http://127.0.0.1:${server.address().port}`;
	const res = await page.request.post(base + "/api/auth/signup", {
		data: {
			email: "browser@example.com",
			password: "browser regression password",
		},
	});
	assert.equal(res.status(), 201);
	const { csrfToken } = await res.json();
	const create = async (plan, name = "") =>
		(
			await (
				await page.request.post(base + "/api/plans", {
					headers: { "x-csrf-token": csrfToken },
					data: { plan, name },
				})
			).json()
		).plan;
	return { page, browser, base, create, errors, db, csrfToken };
}
function warningPlan() {
	const p = blankPlan();
	Object.assign(p.fields, {
		0.1: "Burundi Kayanza Masha — Anaerobic Natural Bourbon",
		0.4: "500",
		1.1: "Bourbon",
		1.4: "8:45",
		3.1: "anaerobic",
		4.1: "light",
		4.2: "12",
		4.3: "1:38",
		3.2: "-0:30",
		1.7: "-0:05",
		5.2: "76.14",
	});
	return p;
}

test(
	"browser: warning-rich reports print on two actual PDF pages without a footer-only page",
	browserOptions,
	async (t) => {
		const { PDFDocument } = await import("pdf-lib");
		const { page, base, create, errors } = await session(t);
		const plan = warningPlan();
		const saved = await create(plan);
		await page.goto(base + "/app?plan=" + saved.id);
		await page
			.getByRole("button", { name: "Preview report", exact: true })
			.waitFor();
		assert.equal(await page.locator("#sec-machine").count(), 0);
		assert.equal(await page.locator("#sec-roastlog").count(), 0);
		assert.equal(
			await page.locator('#plan-form input[name^="planActual."]').count(),
			0,
		);
		await page
			.getByRole("button", { name: "Preview report", exact: true })
			.click();
		await page
			.frameLocator('iframe[title="Printable roast report"]')
			.getByRole("heading", { name: "Milestone plan" })
			.waitFor();
		await page.getByRole("button", { name: "Close preview" }).click();
		const downloading = page.waitForEvent("download");
		await page.getByRole("button", { name: "Download HTML" }).click();
		const download = await downloading;
		const html = await readFile(await download.path(), "utf8");
		assert.ok(html.includes("440 g"));
		assert.ok(html.includes("761.4"));
		assert.ok(html.includes("Development · 1:15"));
		assert.ok(!html.includes("°C"));
		let pdf = await page.pdf({
			preferCSSPageSize: true,
			printBackground: true,
		});
		assert.equal(
			(await PDFDocument.load(pdf)).getPageCount(),
			2,
			"in-app print must not orphan the footer",
		);
		const standalone = await page.context().browser().newPage();
		for (const [label, content, options] of [
			["downloaded HTML", html, { preferCSSPageSize: true }],
			[
				"110% print scaling",
				renderReportHtml({
					...plan,
					fields: { ...plan.fields, 5.2: "761.4", 4.4: "1:15" },
				}),
				{ preferCSSPageSize: true, scale: 1.1 },
			],
			["A4 paper", html, { format: "A4", preferCSSPageSize: false }],
		]) {
			await page.setContent(content);
			pdf = await page.pdf({ ...options, printBackground: true });
			assert.equal((await PDFDocument.load(pdf)).getPageCount(), 2, label);
		}
		assert.deepEqual(errors, []);
	},
);

test(
	"browser: searchable plan table opens the selected plan and preserves edits across switches",
	browserOptions,
	async (t) => {
		const { page, base, create, errors, db } = await session(t);
		const first = warningPlan();
		const a = await create(first, "Fruit plan");
		const b = await create(
			{
				...blankPlan(),
				fields: {
					...blankPlan().fields,
					0.1: "Espresso coffee",
					0.4: "300",
					1.4: "8:00",
					4.3: "2:00",
				},
			},
			"Espresso plan",
		);
		await page.goto(base + "/app?plan=" + a.id);
		await page.locator('#plan-form input[name="0.4"]').fill("520");
		await page.getByRole("link", { name: "← Your plans", exact: true }).click();
		await page.waitForURL("**/plans*");
		await page.locator("#plans-body .plan-title-link").first().waitFor();
		await page.locator('#plan-filters input[name="q"]').fill("Espresso");
		await page
			.getByRole("link", { name: "Espresso plan", exact: true })
			.click();
		await page.waitForURL("**/app?plan=" + b.id);
		await page.locator('#plan-form input[name="0.1"]').waitFor();
		assert.equal(
			await page.locator('#plan-form input[name="0.1"]').inputValue(),
			"Espresso coffee",
		);
		assert.equal(
			await page.locator("#header-coffee-name").textContent(),
			"Espresso plan",
		);
		await page.getByRole("link", { name: "← Your plans", exact: true }).click();
		await page.waitForURL("**/plans*");
		await page.getByRole("link", { name: "Fruit plan", exact: true }).click();
		await page.waitForURL("**/app?plan=" + a.id);
		await page.locator('#plan-form input[name="0.4"]').waitFor();
		assert.equal(
			await page.locator('#plan-form input[name="0.4"]').inputValue(),
			"520",
		);
		const owner = (
			await db.query("SELECT user_id FROM roast_plans WHERE id=$1", [a.id])
		).rows[0].user_id;
		for (let i = 0; i < 28; i++)
			await db.query(
				"INSERT INTO roast_plans(user_id,plan,name) VALUES($1,$2,$3)",
				[owner, blankPlan(), "Library " + i],
			);
		await page.goto(base + "/plans");
		await page
			.locator("#plans-status")
			.filter({ hasText: "of 30 plans" })
			.waitFor();
		assert.equal(
			await page.locator("#plans-body .plan-title-link").count(),
			25,
		);
		await page.getByRole("button", { name: "Next", exact: true }).click();
		await page.locator("#plans-status").filter({ hasText: "26–30" }).waitFor();
		assert.equal(await page.locator("#plans-body .plan-title-link").count(), 5);
		assert.deepEqual(errors, []);
	},
);

test(
	"browser: Plan vs Actual is editable on finished roasts and survives reload",
	browserOptions,
	async (t) => {
		const { page, base, create, db, errors } = await session(t);
		const plan = await create(warningPlan(), "Fruit plan");
		const owner = (
			await db.query("SELECT user_id FROM roast_plans WHERE id=$1", [plan.id])
		).rows[0].user_id;
		const parsed = {
			roast: { title: "Finished fruit roast" },
			curve: [
				{ t: 0, bt: 200 },
				{ t: 60, bt: 90 },
				{ t: 450, bt: 190 },
				{ t: 525, bt: 200 },
			],
			milestones: [
				{ key: "fc", label: "First crack", timeS: 450, tempC: 190 },
				{ key: "drop", label: "Drop", timeS: 525, tempC: 200 },
			],
			derived: { firstCrackS: 450, dropS: 525, developmentS: 75 },
		};
		const row = (
			await db.query(
				"INSERT INTO actual_roasts(user_id,roast_plan_id,filename,original_content,parsed,evaluation_status) VALUES($1,$2,'fruit.alog','{}',$3,'failed') RETURNING id",
				[owner, plan.id, parsed],
			)
		).rows[0];
		await page.goto(base + "/roasts?roast=" + row.id);
		await page
			.getByRole("heading", { name: "Plan vs Actual", exact: true })
			.waitFor();
		const time = page.getByRole("textbox", {
			name: "First crack actual time",
			exact: true,
		});
		assert.equal(await time.inputValue(), "7:30");
		await time.fill("7:40");
		await page
			.getByRole("textbox", { name: "First crack notes", exact: true })
			.fill("Audible");
		await page.getByRole("button", { name: "Save observations" }).click();
		await page
			.locator("#comparison-status")
			.filter({ hasText: "Observations saved" })
			.waitFor();
		await page.reload();
		await page
			.getByRole("textbox", { name: "First crack actual time", exact: true })
			.waitFor();
		assert.equal(await time.inputValue(), "7:40");
		assert.equal(
			await page
				.getByRole("textbox", { name: "First crack notes", exact: true })
				.inputValue(),
			"Audible",
		);
		assert.deepEqual(errors, []);
	},
);

test(
	"browser: Your Plans recovers a deleted remote draft without losing edits",
	browserOptions,
	async (t) => {
		const { page, base, create, db, errors } = await session(t);
		const saved = await create(warningPlan(), "Recovered fruit");
		await page.goto(base + "/app?plan=" + saved.id);
		await page.locator('#plan-form input[name="0.4"]').waitFor();
		await db.query("DELETE FROM roast_plans WHERE id=$1", [saved.id]);
		await page.locator('#plan-form input[name="0.4"]').fill("530");
		await page.getByRole("link", { name: "← Your plans", exact: true }).click();
		await page.waitForURL("**/plans*");
		await page
			.getByRole("link", { name: "Recovered fruit", exact: true })
			.waitFor();
		const rows = (await db.query("SELECT id,plan FROM roast_plans")).rows;
		assert.equal(rows.length, 1);
		assert.notEqual(rows[0].id, saved.id);
		assert.equal(rows[0].plan.fields["0.4"], "530");
		assert.deepEqual(errors, []);
	},
);

test(
	"browser: Your Plans saves to server when browser draft storage is full",
	browserOptions,
	async (t) => {
		const { page, base, create, db, errors } = await session(t);
		const saved = await create(warningPlan());
		await page.goto(base + "/app?plan=" + saved.id);
		await page.locator('#plan-form input[name="0.4"]').waitFor();
		await page.evaluate(() => {
			const original = Storage.prototype.setItem;
			Storage.prototype.setItem = function (key, value) {
				if (key.startsWith("roastPlannerPlan.v2:"))
					throw new DOMException("Storage full", "QuotaExceededError");
				return original.call(this, key, value);
			};
		});
		await page.locator('#plan-form input[name="0.4"]').fill("540");
		await page.getByRole("link", { name: "← Your plans", exact: true }).click();
		await page.waitForURL("**/plans*");
		assert.equal(
			(await db.query("SELECT plan FROM roast_plans WHERE id=$1", [saved.id]))
				.rows[0].plan.fields["0.4"],
			"540",
		);
		assert.deepEqual(errors, []);
	},
);

test(
	"browser: rejected sync shows the cause and keeps the edited plan open",
	browserOptions,
	async (t) => {
		const { page, base, create, db } = await session(t);
		const saved = await create(warningPlan());
		await page.goto(base + "/app?plan=" + saved.id);
		await page.locator('#plan-form input[name="0.4"]').waitFor();
		await page.route("**/api/plans/" + saved.id, async (route) =>
			route.request().method() === "PUT"
				? route.fulfill({
						status: 403,
						contentType: "application/json",
						body: JSON.stringify({ ok: false, code: "csrf_failed" }),
					})
				: route.continue(),
		);
		await page.locator('#plan-form input[name="0.4"]').fill("550");
		await page.getByRole("link", { name: "← Your plans", exact: true }).click();
		await page.getByText(/Your sign-in session needs refreshing/).waitFor();
		assert.ok(page.url().includes("/app?plan=" + saved.id));
		assert.equal(
			(await db.query("SELECT COUNT(*) AS n FROM roast_plans")).rows[0].n,
			1,
		);
		const draft = await page.evaluate(() =>
			JSON.parse(
				localStorage.getItem(
					Object.keys(localStorage).find(
						(k) =>
							k.startsWith("roastPlannerPlan.v2:") && !k.endsWith(":last-user"),
					),
				),
			),
		);
		assert.equal(draft.plan.fields["0.4"], "550");
	},
);

test(
	"browser: Clone opens an independent plan whose roast level can change",
	browserOptions,
	async (t) => {
		const { page, base, create, db, errors } = await session(t);
		const original = await create(warningPlan(), "Fruit original");
		await page.goto(base + "/plans");
		await page
			.getByRole("button", { name: "Clone Fruit original", exact: true })
			.click();
		await page.waitForURL("**/app?plan=*");
		await page
			.locator("#header-coffee-name")
			.filter({ hasText: "Fruit original (copy)" })
			.waitFor();
		const id = new URL(page.url()).searchParams.get("plan");
		assert.notEqual(id, original.id);
		await page
			.locator("#plan-form label")
			.filter({ has: page.locator('input[name="4.1"][value="medium"]') })
			.click();
		await page.getByRole("link", { name: "← Your plans", exact: true }).click();
		await page.waitForURL("**/plans*");
		await page
			.getByRole("link", { name: "Fruit original (copy)", exact: true })
			.waitFor();
		const rows = (await db.query("SELECT id,plan FROM roast_plans")).rows;
		assert.equal(rows.length, 2);
		assert.equal(
			rows.find((r) => r.id === original.id).plan.fields["4.1"],
			"light",
		);
		assert.equal(rows.find((r) => r.id === id).plan.fields["4.1"], "medium");
		assert.deepEqual(errors, []);
	},
);

test(
	"browser: source URL persists from manual entry and prefill, with undo and cloning",
	browserOptions,
	async (t) => {
		const { page, base, create, db, errors } = await session(t);
		const original = await create(warningPlan(), "Source test");
		await page.goto(base + "/app?plan=" + original.id);
		await page
			.locator("#header-coffee-name")
			.filter({ hasText: "Source test" })
			.waitFor();
		const source = page.locator('#plan-form input[name="sourceUrl"]');
		await source.fill("https://example.com/manual-coffee");
		await page.getByRole("link", { name: "← Your plans", exact: true }).click();
		await page.waitForURL("**/plans*");
		await page.getByRole("link", { name: "Source test", exact: true }).click();
		await page
			.locator("#header-coffee-name")
			.filter({ hasText: "Source test" })
			.waitFor();
		await source.waitFor();
		assert.equal(
			await source.inputValue(),
			"https://example.com/manual-coffee",
		);
		await page.route("**/api/prefill", (route) =>
			route.fulfill({
				status: 200,
				contentType: "application/json",
				body: JSON.stringify({
					ok: true,
					fields: {},
					source: { finalUrl: "https://example.com/new-coffee" },
					warnings: [],
				}),
			}),
		);
		await page.locator("#nav-prefill").click();
		await page.locator("#prefill-url").fill("https://example.com/new-coffee");
		await page.locator("#prefill-go").click();
		await page
			.locator("#prefill-result")
			.filter({ hasText: "Applied 0 fields" })
			.waitFor();
		assert.equal(await source.inputValue(), "https://example.com/new-coffee");
		await page.locator("#prefill-undo").click();
		assert.equal(
			await source.inputValue(),
			"https://example.com/manual-coffee",
		);
		await page.locator("#prefill-go").click();
		await page
			.locator("#prefill-result")
			.filter({ hasText: "Applied 0 fields" })
			.waitFor();
		await page.keyboard.press("Escape");
		await page.getByRole("link", { name: "← Your plans", exact: true }).click();
		await page.waitForURL("**/plans*");
		assert.equal(
			(
				await db.query("SELECT plan FROM roast_plans WHERE id=$1", [
					original.id,
				])
			).rows[0].plan.sourceUrl,
			"https://example.com/new-coffee",
		);
		await page
			.getByRole("button", { name: "Clone Source test", exact: true })
			.click();
		await page.waitForURL("**/app?plan=*");
		await page
			.locator("#header-coffee-name")
			.filter({ hasText: "Source test (copy)" })
			.waitFor();
		await source.waitFor();
		assert.equal(await source.inputValue(), "https://example.com/new-coffee");
		assert.deepEqual(errors, []);
	},
);

test(
	"browser: Bean Bro conversation persists; proposed changes require review and can be undone or cloned",
	browserOptions,
	async (t) => {
		const { page, base, create, db, errors } = await session(t, {
			runPlanChat: async () => ({
				reply: "Try ten extra seconds and compare sweetness.",
				model: "test:coach",
				suggestions: [
					{
						fields: { 4.4: "1:25" },
						reason: "Test development.",
						expected: "More sweetness.",
						evidenceRoastIds: [],
					},
				],
			}),
		});
		const saved = await create(warningPlan(), "Bro experiment");
		await page.goto(base + "/app?plan=" + saved.id);
		await page
			.getByRole("button", { name: "Review this plan", exact: true })
			.click();
		await page
			.getByRole("button", { name: "Apply changes", exact: true })
			.waitFor();
		const override = page.locator('#plan-form [name="4.4"]');
		assert.equal(await override.inputValue(), "");
		await page
			.getByRole("button", { name: "Apply changes", exact: true })
			.click();
		assert.equal(await override.inputValue(), "1:25");
		await page
			.getByRole("button", { name: "Undo changes", exact: true })
			.click();
		assert.equal(await override.inputValue(), "");
		await page.getByRole("link", { name: "← Your plans", exact: true }).click();
		await page.waitForURL("**/plans*");
		await page
			.getByRole("link", { name: "Bro experiment", exact: true })
			.click();
		await page
			.locator("#chat-thread")
			.filter({ hasText: "Try ten extra seconds" })
			.waitFor();
		await page
			.getByRole("button", { name: "Create a variation", exact: true })
			.click();
		await page.waitForURL(
			(url) =>
				url.pathname === "/app" && url.searchParams.get("plan") !== saved.id,
		);
		await page
			.locator("#header-coffee-name")
			.filter({ hasText: "(copy)" })
			.waitFor();
		assert.equal(await override.inputValue(), "1:25");
		const original = (
			await db.query("SELECT plan FROM roast_plans WHERE id=$1", [saved.id])
		).rows[0].plan;
		assert.equal(original.fields["4.4"], "");
		assert.equal(original.assistant.messages.length, 2);
		assert.deepEqual(errors, []);
	},
);
test(
	"browser: Source URL has a full row and mobile Bean Bro is a dedicated tab",
	browserOptions,
	async (t) => {
		const { page, base, create, errors } = await session(t);
		const saved = await create(warningPlan());
		await page.goto(base + "/app?plan=" + saved.id);
		await page.locator(".planner-layout").waitFor();
		const source = page.locator('#plan-form [name="sourceUrl"]'),
			coffee = page.locator('#plan-form [name="0.1"]');
		const desktop = await source.boundingBox(),
			coffeeBox = await coffee.boundingBox();
		assert.ok(desktop.width > 400);
		assert.ok(coffeeBox.width > 500);
		await page.setViewportSize({ width: 390, height: 844 });
		await page.waitForTimeout(350);
		await page
			.getByRole("button", { name: "Ask Bean Bro", exact: true })
			.filter({ visible: true })
			.click();
		assert.equal(await page.locator("#panel-chat").isVisible(), true);
		assert.equal(await page.locator(".planner-main").isVisible(), false);
		await page.getByRole("button", { name: "Plan", exact: true }).click();
		await page.waitForTimeout(400);
		assert.equal(await page.locator(".planner-main").isVisible(), true);
		assert.ok((await source.boundingBox()).width > 280);
		assert.equal(
			await page.evaluate(() => document.body.scrollWidth <= innerWidth),
			true,
		);
		assert.deepEqual(errors, []);
	},
);
test(
	"browser: roast-day events survive an offline reload",
	browserOptions,
	async (t) => {
		const { page, base, create, errors } = await session(t);
		const saved = await create(warningPlan());
		await page.goto(base + "/app?plan=" + saved.id);
		await page
			.getByRole("button", { name: "Roast day", exact: true })
			.waitFor();
		await page.evaluate(() => navigator.serviceWorker.ready);
		await page.waitForFunction(
			() => navigator.serviceWorker.controller !== null,
		);
		await page.context().setOffline(true);
		await page.getByRole("button", { name: "Roast day", exact: true }).click();
		await page
			.getByRole("button", { name: "Start roast", exact: true })
			.click();
		await page
			.getByRole("spinbutton", {
				name: "Charge actual Fahrenheit",
				exact: true,
			})
			.fill("345");
		await page
			.locator(".roast-event")
			.first()
			.getByRole("button", { name: "Mark event", exact: true })
			.click();
		await page
			.getByRole("button", { name: "Close roast day", exact: true })
			.click();
		await page.reload();
		await page.getByRole("button", { name: "Roast day", exact: true }).click();
		assert.equal(
			await page
				.getByRole("spinbutton", {
					name: "Charge actual Fahrenheit",
					exact: true,
				})
				.inputValue(),
			"345",
		);
		await page.context().setOffline(false);
		assert.deepEqual(errors, []);
	},
);
test(
	"browser: coffee history compares measured curves and quick tasting persists",
	browserOptions,
	async (t) => {
		const { page, base, create, db, errors } = await session(t);
		const saved = await create(warningPlan());
		const owner = (
			await db.query("SELECT user_id FROM roast_plans WHERE id=$1", [saved.id])
		).rows[0].user_id;
		let first;
		for (let i = 1; i <= 2; i++) {
			const r = (
				await db.query(
					"INSERT INTO actual_roasts(user_id,roast_plan_id,filename,original_content,parsed,evaluation_status) VALUES($1,$2,$3,'{}',$4,'failed') RETURNING id",
					[
						owner,
						saved.id,
						`test-${i}.alog`,
						{
							roast: { title: `Batch ${i}` },
							curve: [
								{ timeS: 0, tempC: 200 },
								{ timeS: 60, tempC: 90 },
								{ timeS: 500, tempC: 190 },
							],
							derived: { firstCrackS: 450, developmentS: 50, dropS: 500 },
						},
					],
				)
			).rows[0];
			first ??= r.id;
		}
		await page.goto(base + "/roasts?roast=" + first);
		await page
			.getByRole("heading", { name: "Quick taste", exact: true })
			.waitFor();
		await page
			.locator('#after-form [name="tasteBalance"]')
			.selectOption("Balanced");
		await page.locator('#after-form [name="sweetness"]').selectOption("4");
		await page.locator('#after-form [name="favorite"]').selectOption("yes");
		await page
			.getByRole("button", { name: "Save after-roast", exact: true })
			.click();
		await page.waitForFunction(
			() => document.querySelector("#after-save").disabled === false,
		);
		await page.goto(
			base +
				"/coffees?coffee=" +
				encodeURIComponent(
					"coffee:" + warningPlan().fields["0.1"].toLowerCase(),
				),
		);
		await page.getByRole("heading", { name: "Your favorite batch" }).waitFor();
		await page
			.getByRole("checkbox", { name: "Compare Batch 1", exact: true })
			.check();
		await page
			.getByRole("checkbox", { name: "Compare Batch 2", exact: true })
			.check();
		await page
			.getByRole("button", { name: "Compare selected batches" })
			.click();
		await page
			.getByRole("img", {
				name: "Measured roast curves, Fahrenheit versus time",
			})
			.waitFor();
		assert.equal(await page.locator(".comparison-chart polyline").count(), 2);
		assert.deepEqual(errors, []);
	},
);
test(
	"browser: finishing manual roast day opens a tasting record",
	browserOptions,
	async (t) => {
		const { page, base, create, errors } = await session(t);
		const p = warningPlan();
		p.roastDay = {
			startedAt: Date.now() - 600000,
			events: {
				charge: { timeS: 0, tempF: "345" },
				fc: { timeS: 500, tempF: "360" },
				drop: { timeS: 580, tempF: "375" },
			},
		};
		const saved = await create(p, "Manual fruit batch");
		await page.goto(base + "/app?plan=" + saved.id);
		await page.getByRole("button", { name: "Roast day", exact: true }).click();
		await page
			.getByRole("button", { name: "Finish & record tasting", exact: true })
			.click();
		await page.waitForURL("**/roasts?roast=*");
		await page
			.getByRole("heading", { name: "Quick taste", exact: true })
			.waitFor();
		await page.getByRole("link", { name: "Download manual record" }).waitFor();
		assert.equal(
			await page.locator("#detail-download-updated").isVisible(),
			false,
		);
		assert.deepEqual(errors, []);
	},
);