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

const readLoginView = () => readFileSync(resolve(__dirname, "./Login.vue"), "utf8");

describe("Login protocol agreement", () => {
  it("requires protocol agreement before calling login", () => {
    const source = readLoginView();
    const protocolGuardIndex = source.indexOf("!form.agreeProtocol");
    const loginCallIndex = source.indexOf("auth.login(form.email, form.password)");

    expect(source).toContain('v-model="form.agreeProtocol"');
    expect(source).toContain("我已阅读并同意");
    expect(source).toContain("请先阅读并同意用户协议");
    expect(protocolGuardIndex).toBeGreaterThan(-1);
    expect(loginCallIndex).toBeGreaterThan(-1);
    expect(protocolGuardIndex).toBeLessThan(loginCallIndex);
  });

  it("does not access browser password credentials on the login page", () => {
    const source = readLoginView();

    expect(source).toContain('autocomplete="username"');
    expect(source).toContain('name="username"');
    expect(source).toContain('name="ctms-login-password"');
    expect(source).toContain('autocomplete="new-password"');
    expect(source).not.toContain('v-model="form.rememberPassword"');
    expect(source).not.toContain("记住密码");
    expect(source).not.toContain("tryLoadBrowserCredential");
    expect(source).not.toContain("tryStoreBrowserCredential");
    expect(source).not.toContain("navigator.credentials");
    expect(source).not.toContain("PasswordCredential");
    expect(source).not.toContain('localStorage.setItem("ctms_saved_password"');
    expect(source).not.toContain("localStorage.setItem('ctms_saved_password'");
  });

  it("opens a CTMS-specific protocol dialog from the protocol text", () => {
    const source = readLoginView();

    expect(source).toContain("authProtocolSections");
    expect(source).toContain('v-model="protocolDialogVisible"');
    expect(source).toContain('@click.stop.prevent="openProtocolDialog"');
    expect(source).toContain('import { authProtocolSections } from "../content/authProtocol"');
    expect(source).toContain("const protocolSections = authProtocolSections");
    expect(source).toContain("confirmProtocol");
  });

  it("persists the protocol agreement checkbox in localStorage", () => {
    const source = readLoginView();

    expect(source).toContain("const AGREE_PROTOCOL_KEY = \"ctms_agree_protocol\"");
    expect(source).toContain('localStorage.getItem(AGREE_PROTOCOL_KEY) === "true"');
    expect(source).toContain('localStorage.setItem(AGREE_PROTOCOL_KEY, String(checked))');
    expect(source).toContain("confirmProtocol");
  });

  it("avoids browser password caching", () => {
    const source = readLoginView();

    expect(source).toContain('name="ctms-login-password"');
    expect(source).toContain('autocomplete="new-password"');
    expect(source).not.toContain('autocomplete="current-password"');
  });

  it("restores the current user's last project before routing after login", () => {
    const source = readLoginView();
    const loginCallIndex = source.indexOf("auth.login(form.email, form.password)");
    const userKeyIndex = source.indexOf("const userKey = auth.user?.email || form.email");
    const restoreIndex = source.indexOf("studyStore.restoreStudyForUser(userKey");
    const projectOverviewRouteIndex = source.indexOf('router.push("/project/overview")');

    expect(userKeyIndex).toBeGreaterThan(loginCallIndex);
    expect(restoreIndex).toBeGreaterThan(loginCallIndex);
    expect(restoreIndex).toBeLessThan(projectOverviewRouteIndex);
    expect(source).toContain("preferActive: !!auth.user?.is_admin");
  });

  it("shows persistent logout reason notices on the login card", () => {
    const source = readLoginView();

    expect(source).toContain('v-if="logoutNotice"');
    expect(source).toContain("LOGOUT_REASON_TIMEOUT");
    expect(source).toContain("LOGOUT_REASON_AUTH_EXPIRED");
    expect(source).toContain("LOGOUT_REASON_MANUAL");
    expect(source).toContain("30 分钟未检测到任何操作。为保护项目数据，请重新登录后继续。");
    expect(source).toContain("登录状态已失效");
    expect(source).toContain("已安全退出");
    expect(source).toContain(".logout-notice");
  });

  it("keeps the login card wide enough on desktop while remaining responsive", () => {
    const source = readLoginView();

    expect(source).toContain("width: clamp(480px, 34vw, 560px);");
    expect(source).toContain("max-width: calc(100vw - 40px);");
  });

  it("falls back to full email input when no server-configured domains exist", () => {
    const source = readLoginView();

    expect(source).toContain('fetchEmailDomains()');
    expect(source).toContain("const availableEmailDomains = computed(() => configuredEmailDomains.value)");
    expect(source).toContain("availableEmailDomains.value.length > 0 && availableEmailDomains.value.includes(form.emailDomain)");
    expect(source).toContain("const manualEmailInput = computed(() => !hasConfiguredEmailDomains.value)");
    expect(source).toContain('v-if="hasConfiguredEmailDomains"');
    expect(source).toContain("未检测到邮箱后缀配置，请输入完整邮箱地址。");
    expect(source).toContain("form.email = local;");
    expect(source).toContain("if (domains.length === 0)");
    expect(source).toContain("configuredEmailDomains.value.includes(domain)");
    expect(source).not.toContain("preservedEmailDomain");
    expect(source).not.toContain("showDomainSelect");
    expect(source).not.toContain("email-domain-input");
  });
});