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

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 pageSource = readProjectFile("src/app/membership/page.tsx");
const membershipLib = readProjectFile("src/lib/membership.ts");

function cssBlock(selector: string) {
  const start = globalStyles.indexOf(`${selector} {`);
  assert.notEqual(start, -1, `missing CSS selector: ${selector}`);
  const end = globalStyles.indexOf("}", start);
  assert.notEqual(end, -1, `unterminated CSS selector: ${selector}`);
  return globalStyles.slice(start, end);
}

test("membership page exists as a client component with a loading boundary", () => {
  assert.equal(existsSync(projectFile("src/app/membership/page.tsx")), true);
  assert.match(pageSource, /"use client"/);
  assert.match(pageSource, /<Suspense/);
  assert.match(pageSource, /membership-loading/);
});

test("membership page loads account, packages, orders and redeem endpoints", () => {
  assert.match(pageSource, /fetch\("\/api\/account"/);
  assert.match(pageSource, /fetch\("\/api\/payment\/packages"/);
  assert.match(pageSource, /fetch\("\/api\/payment\/orders"/);
  assert.match(pageSource, /fetch\("\/api\/payment\/epay\/create"/);
  assert.match(pageSource, /fetch\(`\/api\/payment\/epay\/status\?orderNo=/);
  assert.match(pageSource, /fetch\("\/api\/redeem"/);
});

test("creates orders with productId and opens the signed cashier URL safely", () => {
  assert.match(pageSource, /JSON\.stringify\(\{ productId \}\)/);
  assert.match(pageSource, /window\.open\(payload\.payUrl, "_blank", "noopener,noreferrer"\)/);
  assert.doesNotMatch(pageSource, /document\.createElement\("form"\)|payload\.submitUrl|payload\.fields/);
  assert.match(pageSource, /if \(!paymentOrder \|\| paymentOrder\.status !== "pending"\) return;/);
});

test("terminal payment failures stop polling and offer re-pay with the same product", () => {
  assert.match(pageSource, /\["failed", "closed", "cancelled"\]\.includes\(payload\.status\)/);
  assert.match(pageSource, /payload\.grantStatus === "failed"/);
  assert.match(pageSource, /status !== "pending"\) return;/);
  assert.match(pageSource, /status: paid \? "paid" : failed \? "failed" : "pending"/);
  assert.match(pageSource, /paymentOrder\.status === "failed"/);
  assert.match(pageSource, /支付失败/);
  assert.match(pageSource, /createPayment\(paymentOrder\.productId\)/);
  assert.match(pageSource, /重新支付/);
});

test("failed status beats paid and non-terminal statuses keep polling", () => {
  assert.match(pageSource, /const paid = payload\.status === "paid" && !failed;/);
  assert.match(pageSource, /status: paid \? "paid" : failed \? "failed" : "pending"/);
  assert.match(pageSource, /if \(paid\) \{/);
  assert.doesNotMatch(pageSource, /status: paid \? "paid" : failed \? "failed" : payload\.status/);
  assert.doesNotMatch(pageSource, /payload\.status === "paid" \? "paid"/);
});

test("polls order status and refreshes balance on paid", () => {
  assert.match(pageSource, /const paid = payload\.status === "paid" && !failed;/);
  assert.match(pageSource, /if \(paid\) \{/);
  assert.match(pageSource, /status: paid \? "paid" : failed \? "failed" : "pending"/);
  assert.match(pageSource, /fetchAccountData\(\)/);
  assert.match(pageSource, /notifyBalanceChanged\(refreshed\?\.credits/);
  assert.match(pageSource, /void fetchOrders\(\)/);
});

test("keeps the selected product and allows retry on payment failure", () => {
  assert.match(pageSource, /setSelectedProductId\(productId\)/);
  assert.match(pageSource, /setPaymentError\(caught instanceof Error \? caught\.message : "创建支付失败"\)/);
  assert.match(pageSource, /finally \{\s*setPayingProductId\(null\);/);
  assert.match(pageSource, /if \(payingProductId\) return;/);
  assert.match(pageSource, /createPayment\(selectedProductId\)/);
  assert.match(pageSource, /membership-payment-error/);
  assert.doesNotMatch(pageSource, /setPayingProductId\(null\)[\s\S]{0,40}setPaymentOrder\(null\)/);
});

test("redeem opens from redeem=1 and removes the param without new history", () => {
  assert.match(pageSource, /searchParams\.get\("redeem"\) === "1"/);
  assert.match(pageSource, /window\.history\.replaceState/);
  assert.match(pageSource, /url\.searchParams\.delete\("redeem"\)/);
  assert.doesNotMatch(pageSource, /pushState/);
});

test("returning prefers history.back and keeps browser back semantics", () => {
  assert.match(pageSource, /window\.history\.back\(\)/);
  assert.match(pageSource, /window\.location\.assign\("\/"\)/);
  assert.match(pageSource, /onClick=\{goBack\}/);
});

test("trims the redeem code without changing its case", () => {
  assert.match(pageSource, /const code = redeemCode\.trim\(\);/);
  assert.doesNotMatch(pageSource, /redeemCode\.(?:toUpperCase|toLowerCase)\(\)/);
  assert.doesNotMatch(pageSource, /normalizeRedeemCode/);
  assert.match(pageSource, /JSON\.stringify\(\{ code \}\)/);
});

test("redeem success reports awarded credits, latest balance and completes", () => {
  assert.match(pageSource, /awardedCredits/);
  assert.match(pageSource, /本次到账/);
  assert.match(pageSource, /最新余额/);
  assert.match(pageSource, /setRedeemDone\(true\)/);
  assert.match(pageSource, /setRedeemCode\(""\)/);
  assert.match(pageSource, /const refreshed = await fetchAccountData\(\);/);
  assert.match(pageSource, /notifyBalanceChanged\(refreshed\?\.credits \?\? result\.credits\)/);
  assert.match(pageSource, /完成/);
  assert.match(pageSource, /onClick=\{closeRedeem\}/);
});

test("supports plan and source query hints", () => {
  assert.match(pageSource, /searchParams\.get\("plan"\)/);
  assert.match(pageSource, /searchParams\.get\("source"\)/);
  assert.match(pageSource, /membershipSourceNotice\(source\)/);
  assert.match(membershipLib, /"insufficient-credits": "余额不足，请先补充点数或开通会员后再发送问题"/);
  assert.match(membershipLib, /rectification: "生时校正需要点数或会员权益"/);
});

test("membership section shows fixed trial/monthly/yearly plans with monthly recommended", () => {
  assert.match(pageSource, /selectMembershipPlans\(paymentPackages\)/);
  assert.match(pageSource, /planAlias\(product\)/);
  assert.match(pageSource, /alias === "monthly"/);
  assert.match(pageSource, /membership-plan-card--recommended/);
  assert.match(membershipLib, /trial: "体验"/);
  assert.match(membershipLib, /monthly: "月卡"/);
  assert.match(membershipLib, /yearly: "年卡"/);
  assert.match(pageSource, /会员套餐/);
  assert.match(pageSource, /点数充值/);
  assert.match(pageSource, /id="membership-plans-tab"/);
  assert.match(pageSource, /id="membership-credits-tab"/);
  assert.match(pageSource, /role="tablist"/);
  assert.match(pageSource, /role="tab"/);
  assert.match(pageSource, /role="tabpanel"/);
  assert.match(pageSource, /aria-controls="membership-plans-panel"/);
  assert.match(pageSource, /aria-labelledby="membership-plans-tab"/);
});

test("plan cards carry price, duration, audience, entitlements, purchase and rules", () => {
  assert.match(pageSource, /formatPrice\(product\.priceCents, product\.currency\)/);
  assert.match(pageSource, /formatProductDuration\(product\)/);
  assert.match(pageSource, /productAudience\(product\)/);
  assert.match(pageSource, /entitlementLabel\(entitlement\)/);
  assert.match(pageSource, /<details className="membership-rules">/);
  assert.match(pageSource, /<summary>详细规则<\/summary>/);
  assert.match(pageSource, /className=\{recommended \? "button-primary membership-buy" : "button-secondary membership-buy"\}/);
});

test("renewal semantics map the active subscription to the matching plan", () => {
  assert.match(pageSource, /const currentProductCode = activeSubscription\?\.status === "active"/);
  assert.match(pageSource, /currentProductCode === product\.code/);
  assert.match(pageSource, /isCurrent \? "续费" : product\.productType === "trial" \? "立即开通" : "立即购买"/);
  assert.match(pageSource, /当前套餐/);
});

test("membership and credits render as switchable tab panels, membership first", () => {
  assert.match(pageSource, /const \[activeSegment, setActiveSegment\] = useState<"membership" \| "credits">\("membership"\)/);
  assert.match(pageSource, /setActiveSegment\("membership"\)/);
  assert.match(pageSource, /setActiveSegment\("credits"\)/);
  assert.match(pageSource, /activeSegment === "membership" && \(/);
  assert.match(pageSource, /activeSegment === "credits" && \(/);
  assert.match(pageSource, /const plans = selectMembershipPlans\(paymentPackages\);/);
  assert.match(pageSource, /const creditPacks = paymentPackages\.filter\(\(product\) => product\.productType === "credit_pack"\);/);
  assert.match(pageSource, /className="membership-plan-grid"/);
  assert.match(pageSource, /className="membership-credit-grid"/);
  assert.doesNotMatch(pageSource, /creditPacks\.map[\.\s\S]{0,120}membership-plan-card/);
});

test("plan param forces the membership segment and highlights the matching card", () => {
  assert.match(pageSource, /const highlighted = alias === highlightedPlan;/);
  assert.match(pageSource, /membership-plan-card--highlighted/);
  assert.match(pageSource, /aria-current=\{highlighted \? "true" : undefined\}/);
  assert.match(pageSource, /highlightedCardRef/);
  assert.match(pageSource, /scrollIntoView\(\{ behavior: "smooth", block: "center" \}\)/);
  assert.match(pageSource, /card\.focus\(\{ preventScroll: true \}\)/);
  assert.match(pageSource, /已为你定位到/);
  assert.doesNotMatch(pageSource, /setActiveSegment\(\"credits\"\)[\s\S]{0,80}highlightedPlan/);
});

test("page main title is 套餐与会员", () => {
  assert.match(pageSource, /<h1 className="membership-title">套餐与会员<\/h1>/);
  assert.doesNotMatch(pageSource, /<h1 className="membership-title">会员与点数<\/h1>/);
});

test("payment errors sit in a common position above the visible segment", () => {
  const errorAt = pageSource.indexOf("membership-payment-error");
  const plansPanelAt = pageSource.indexOf('activeSegment === "membership" && (');
  assert.notEqual(errorAt, -1, "missing common payment error surface");
  assert.notEqual(plansPanelAt, -1, "missing plans panel");
  assert.ok(errorAt < plansPanelAt, "payment error must render before the segment panels");
  assert.doesNotMatch(pageSource, /<p className="form-error" role="alert">\{paymentError\}<\/p>/);
});

test("summary shows member status and balance; orders section lists records", () => {
  assert.match(pageSource, /会员状态/);
  assert.match(pageSource, /当前余额/);
  assert.match(pageSource, /membership-summary-card/);
  assert.match(pageSource, /订单记录/);
  assert.match(pageSource, /membership-order-row/);
  assert.match(pageSource, /orderStatusLabel\(order\.status\)/);
  assert.match(pageSource, /orderStatusLabel/);
  assert.match(membershipLib, /paid: "已支付"/);
});

test("orbit / ring guidance visual is present in the hero", () => {
  assert.match(pageSource, /membership-celestial-visual/);
  assert.match(pageSource, /membership-orbit membership-orbit-outer/);
  assert.match(pageSource, /membership-orbit membership-orbit-inner/);
  assert.match(pageSource, /membership-celestial-mark/);
  assert.match(cssBlock(".membership-hero"), /overflow:\s*hidden/);
});

test("redeem modal surface contains title, balance, input, redeem, rules and close", () => {
  assert.match(pageSource, /id="membership-redeem-title"/);
  assert.match(pageSource, /<h2 id="membership-redeem-title">兑换点数<\/h2>/);
  assert.match(pageSource, /className="redeem-balance"/);
  assert.match(pageSource, /id="membership-redeem-code"/);
  assert.match(pageSource, /立即兑换/);
  assert.match(pageSource, /<summary>兑换规则<\/summary>/);
  assert.match(pageSource, /aria-label="关闭"/);
});

test("redeem modal reuses the existing account dialog classes", () => {
  assert.match(pageSource, /className="account-modal-overlay"/);
  assert.match(pageSource, /className="account-modal membership-redeem"/);
  assert.match(pageSource, /className="account-modal-header"/);
  assert.match(pageSource, /className="dialog-close"/);
  assert.match(pageSource, /className="redeem-form"/);
  assert.match(pageSource, /className="form-error" role="alert"/);
  assert.match(pageSource, /className="form-success" role="status"/);
  assert.match(pageSource, /className="button-primary"/);
});

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 and highlight styles are defined", () => {
  assert.match(cssBlock(".membership-tabs"), /border-bottom:\s*1px solid var\(--color-border\)/);
  assert.match(globalStyles, /\.membership-tab\[aria-selected="true"\][^{]*\{[^}]*color:\s*var\(--color-action\)/);
  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*var\(--color-danger-muted\)/);
});

test("membership shell is capped within the 1120-1200 range", () => {
  assert.match(cssBlock(".membership-shell"), /width:\s*min\(1160px, 100%\)/);
  assert.match(cssBlock(".membership-shell"), /margin:\s*0 auto/);
});

test("membership page reuses the warm parchment / terracotta tokens", () => {
  assert.match(cssBlock(".membership-hero"), /linear-gradient\(135deg, var\(--color-canvas\) 0%, var\(--color-canvas-soft\) 100%\)/);
  assert.doesNotMatch(cssBlock(".membership-hero"), /#fbfaf7|#f5f1eb/);
  assert.match(cssBlock(".membership-plan-card--recommended"), /color-mix\(in srgb, var\(--color-action\)/);
  assert.match(cssBlock(".membership-title"), /var\(--color-ink\)/);
  assert.match(cssBlock(".membership-badge--recommended"), /background: var\(--color-action\)/);
});

test("membership page scrolls within a fixed viewport and the recommended card has a terracotta top bar", () => {
  assert.match(cssBlock(".membership-page"), /height:\s*100dvh/);
  assert.match(cssBlock(".membership-page"), /overflow-y:\s*auto/);
  assert.match(globalStyles, /\.membership-plan-card,[\s\S]*\.membership-credit-card\s*\{[^}]*position:\s*relative/);
  assert.match(globalStyles, /\.membership-plan-card,[\s\S]*\.membership-credit-card\s*\{[^}]*overflow:\s*hidden/);
  assert.match(cssBlock(".membership-plan-card--recommended::before"), /background:\s*var\(--color-action\)/);
  assert.match(cssBlock(".membership-plan-card--recommended"), /background:\s*color-mix\(in srgb, var\(--color-action-soft\)/);
  assert.match(cssBlock(".membership-plan-card--recommended"), /border-color:\s*color-mix\(in srgb, var\(--color-action\)/);
  assert.match(cssBlock(".membership-plan-card--recommended"), /box-shadow:/);
});

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/);
  assert.match(membershipLib, /export function membershipHref\(source: string, options: \{ redeem\?: boolean; plan\?: MembershipPlanAlias \} = \{\}\)/);
});