import assert from "node:assert/strict";
import { readFileSync } from "node:fs";
import test from "node:test";

import { cssDeclarations } from "./css-contract-test-support.ts";
import { homeSurface as homePageSource } from "./home-surface.ts";

const projectFile = (path: string) => new URL(`../${path}`, import.meta.url);
const readProjectFile = (path: string) => readFileSync(projectFile(path), "utf8");
const globalStyles = readProjectFile("src/app/globals.css");
const onboardingPaywallSource = readProjectFile("src/components/onboarding-redeem-paywall.tsx");
const membershipLib = readProjectFile("src/lib/membership.ts");

const cssBlock = (selector: string) => cssDeclarations(selector, globalStyles);

test("home refreshes the account whenever it is shown again", () => {
  const pageShow = homePageSource.slice(
    homePageSource.indexOf("const onPageShow"),
    homePageSource.indexOf("const onOnline"),
  );
  assert.match(pageShow, /void refreshAccount\(\)/);
  assert.doesNotMatch(pageShow, /event\.persisted/);
});

test("login redirects keep the loading screen instead of flashing the account error page", () => {
  assert.match(homePageSource, /class LoginRedirectError extends Error/);
  assert.match(homePageSource, /window\.location\.replace\("\/login"\)/);
  assert.match(homePageSource, /if \(caught instanceof LoginRedirectError\) \{\n\s*redirectedToLogin = true;\n\s*return;/);
  assert.match(homePageSource, /if \(redirectedToLogin\) return;/);
});

test("homepage composer does not render notice copy", () => {
  assert.doesNotMatch(homePageSource, /composer-notice/);
});

test("finished starter questions open the redeem paywall only for accounts without access", () => {
  assert.match(homePageSource, /!starterHomeVisible/);
  assert.match(homePageSource, /account\.credits > 0/);
  assert.match(homePageSource, /account\.activeSubscription\?\.status === "active"/);
  assert.match(homePageSource, /setOnboardingPaywallOpen\(true\)/);
  assert.match(homePageSource, /<OnboardingRedeemPaywall/);
  assert.match(onboardingPaywallSource, /入门问题已经准备好/);
  assert.match(onboardingPaywallSource, /fetch\("\/api\/redeem"/);
  assert.match(onboardingPaywallSource, /兑换并继续/);
  // 原值: membershipHref("onboarding-paywall") 的 Link
  // 新值: onOpenBilling 按钮，关掉付费墙后打开设置弹窗 billing 格
  // 原因: 七处入口改回调，对话状态不丢
  assert.match(onboardingPaywallSource, /onOpenBilling/);
  assert.match(onboardingPaywallSource, /查看套餐与会员/);
  assert.doesNotMatch(onboardingPaywallSource, /membershipHref\("onboarding-paywall"\)/);
  assert.match(homePageSource, /openAccountDialog\("billing", \{ source: "onboarding-paywall" \}\)/);
});

test("the onboarding paywall reuses the shared account dialog header", () => {
  assert.match(onboardingPaywallSource, /<header className="account-modal-header">/);
  assert.match(onboardingPaywallSource, /<\/header>/);
  assert.doesNotMatch(onboardingPaywallSource, /className="dialog-header"/);
  assert.match(onboardingPaywallSource, /className="account-modal-overlay"/);
  assert.match(onboardingPaywallSource, /className="account-modal paywall-modal"/);
  assert.match(onboardingPaywallSource, /className="dialog-close"/);
});

test("every static class the onboarding paywall renders has a rule in globals.css", () => {
  const used = new Set(
    [...onboardingPaywallSource.matchAll(/className="([^"{}]+)"/g)]
      .flatMap((hit) => hit[1].split(/\s+/))
      .filter(Boolean),
  );
  assert.ok(used.size >= 12, `expected the paywall to carry its usual classes, saw ${used.size}`);
  const undefinedClasses = [...used].filter((name) => (
    !new RegExp(`\\.${name}(?![\\w-])`).test(globalStyles)
  ));
  assert.deepEqual(undefinedClasses, []);
});

test("membership hero stays content-led without decorative orbit artwork", () => {
  assert.doesNotMatch(globalStyles, /membership-celestial-visual|membership-orbit|membership-celestial-mark/);
  assert.doesNotMatch(globalStyles, /\.membership-hero|\.membership-page|\.membership-shell/);
});

test("desktop uses three columns, tablet two and mobile one with monthly first", () => {
  assert.match(globalStyles, /\.membership-plan-grid,[\s\S]*\.membership-credit-grid\s*\{[^}]*grid-template-columns:\s*1fr/);
  assert.match(globalStyles, /@media \(min-width:\s*640px\)[\s\S]*grid-template-columns:\s*repeat\(2, minmax\(0, 1fr\)\)/);
  assert.match(globalStyles, /@media \(min-width:\s*1024px\)[\s\S]*grid-template-columns:\s*repeat\(3, minmax\(0, 1fr\)\)/);
  assert.match(globalStyles, /@media \(max-width:\s*639px\)[\s\S]*\.membership-plan-card--recommended\s*\{[^}]*order:\s*-1/);
  assert.doesNotMatch(cssBlock(".membership-plan-card--recommended"), /grid-column/);
});

test("segment tabs use a quiet underline treatment", () => {
  assert.match(cssBlock(".membership-tabs"), /border-bottom:\s*1px solid var\(--color-border\)/);
  assert.doesNotMatch(cssBlock(".membership-tabs"), /border-radius|background|box-shadow/);
  assert.match(cssBlock(".membership-tab[data-active]"), /border-bottom-color:\s*var\(--color-action\)/);
  assert.match(cssBlock(".membership-tab[data-active]"), /background:\s*transparent/);
  assert.match(cssBlock(".membership-tab[data-active]"), /box-shadow:\s*none/);
  assert.match(cssBlock(".membership-plan-card--highlighted"), /outline:\s*2px solid color-mix\(in srgb, var\(--color-action\)/);
  assert.match(cssBlock(".membership-payment-error"), /background:\s*transparent/);
});

test("membership shell is capped within the 1120-1200 range", () => {
  // 原值: .membership-shell width min(1160px, 100%)
  // 新值: 页面壳删除；账单装进 .settings-modal 固定尺寸
  // 原因: 删除 /membership 整页
  assert.doesNotMatch(globalStyles, /\.membership-shell/);
  assert.match(cssBlock(".settings-modal"), /width:\s*min\(100vw - 32px, 880px\)/);
  assert.match(cssBlock(".settings-modal"), /height:\s*min\(84dvh, 640px\)/);
});

test("membership page reuses the warm parchment / terracotta tokens", () => {
  assert.match(cssBlock(".membership-plan-card--current"), /border-color:\s*var\(--color-action\)/);
  assert.match(cssBlock(".membership-status"), /color:\s*var\(--color-action\)/);
  assert.doesNotMatch(globalStyles, /membership-badge--recommended/);
  assert.doesNotMatch(globalStyles, /\.membership-title|\.membership-hero/);
});

test("membership page scrolls within a fixed viewport and cards stay flat", () => {
  // 原值: .membership-page height 100dvh overflow-y auto
  // 新值: 内容区 .settings-dialog-content 独立滚动；卡片仍无阴影
  // 原因: 固定尺寸设置弹窗
  assert.doesNotMatch(globalStyles, /\.membership-page/);
  assert.match(cssBlock(".settings-dialog-content"), /overflow-y:\s*auto/);
  assert.match(cssBlock(".membership-plan-card, .membership-credit-card"), /box-shadow:\s*none/);
  assert.match(cssBlock(".membership-plan-card--recommended"), /background:\s*var\(--color-canvas\)/);
  assert.doesNotMatch(globalStyles, /membership-plan-card--recommended::before/);
});

test("membership lib keeps helpers and the balance sync contract", () => {
  assert.match(membershipLib, /export const BALANCE_SYNC_KEY = "jyotisha:balance:updated"/);
  assert.match(membershipLib, /export const BALANCE_CHANGED_EVENT = "jyotisha:balance:changed"/);
  assert.match(membershipLib, /export function notifyBalanceChanged\(credits: number\)/);
  assert.match(membershipLib, /localStorage\.setItem\(BALANCE_SYNC_KEY/);
  assert.match(membershipLib, /new CustomEvent\(BALANCE_CHANGED_EVENT/);
  assert.match(membershipLib, /export function formatPrice\(priceCents: number, currency = "CNY"\)/);
  assert.match(membershipLib, /export function orderStatusLabel/);
  assert.match(membershipLib, /export function planDisplayLabel/);
  // 原值: options: { plan?: MembershipPlanAlias } = {}，href /membership
  // 新值: 可带 tab；生成 /?settings=billing&source=…
  // 原因: 深链接与重定向，不再指向已删页面
  assert.match(membershipLib, /export function membershipHref\(/);
  assert.match(membershipLib, /settings: "billing"/);
  assert.doesNotMatch(membershipLib, /params\.set\("redeem"/);
  assert.doesNotMatch(membershipLib, /"\/membership/);
});