// SPDX-License-Identifier: LicenseRef-ConusAI-Template-1.0
// The shell in a browser (plan item AT4.4): sign-in and its error states, the invitation link in every
// state it can be in, the organization switcher, the workspace and project pages, the 403 and 404
// pages (and that a stranger cannot tell a missing organization from one they are not in), the
// language and theme controls, and the demo data `pnpm dev` writes. Each screen passes axe, in
// English, and the ones that carry words of their own also in Lithuanian.

import { type Browser, type BrowserContext, expect, type Page, test } from "@playwright/test"
import { call, makeOrganization, platformState, signIn, unique, violations } from "./support/app"

const base = `http://127.0.0.1:${process.env.E2E_WEB_PORT ?? 3100}`

/** A browser of its own, so two people can be signed in at once. */
async function person(browser: Browser, email: string): Promise<{ page: Page; context: BrowserContext }> {
  const context = await browser.newContext({ baseURL: base })
  const page = await context.newPage()
  await signIn(page, email)
  return { page, context }
}

/** The alerts of the page's own content: Next.js keeps a `role="alert"` route announcer of its own in the document. */
const alerts = (page: Page) => page.locator("main [role=alert], p.app-error[role=alert]")

const mainText = (page: Page): Promise<string> => page.locator("main").innerText()

test("the sign-in page offers the way in, words each failure in the person's language, and passes axe", async ({
  page,
}) => {
  await page.goto("/auth/sign-in")
  await expect(page.getByRole("heading", { level: 1, name: "Sign in" })).toBeVisible()
  await expect(alerts(page)).toHaveCount(0)
  expect(await violations(page)).toEqual([])

  for (const [code, words] of [
    ["denied", /The identity provider did not let you in/],
    ["noTransaction", /was not started in this browser/],
    ["sessionExpired", /Your session has ended/],
    ["provider", /could not complete the sign-in/],
    ["failed", /Signing in did not work/],
  ] as const) {
    await page.goto(`/auth/sign-in?error=${code}`)
    await expect(alerts(page)).toContainText(words)
  }
  expect(await violations(page)).toEqual([])

  // Only the five words are ever shown: a code from a URL is not text to print.
  await page.goto("/auth/sign-in?error=%3Cscript%3Ealert(1)%3C/script%3E")
  await expect(alerts(page)).toHaveCount(0)

  // In Lithuanian, with the same structure.
  await page.goto("/auth/sign-in?error=denied")
  await page.getByLabel("Language").selectOption("lt")
  await expect(page.getByRole("heading", { level: 1, name: "Prisijungimas" })).toBeVisible()
  await expect(alerts(page)).toContainText("Tapatybės teikėjas jūsų neįleido")
  expect(await violations(page)).toEqual([])
})

test("a failed sign-in ends at the sign-in page with a reason, never at a 500", async ({ page }) => {
  // The provider says no.
  const denied = await page.request.get("/auth/callback?error=access_denied&error_description=secret+words", {
    maxRedirects: 0,
  })
  expect(denied.status()).toBe(302)
  expect(denied.headers().location).toBe("/auth/sign-in?error=denied")
  // A callback no sign-in in this browser started.
  const orphan = await page.request.get("/auth/callback?code=abc&state=xyz", { maxRedirects: 0 })
  expect(orphan.status()).toBe(302)
  // (this stack has no identity provider, so there is nothing a callback could complete)
  expect(orphan.headers().location).toBe("/auth/sign-in?error=failed")
  // An address the dev sign-in will not take.
  const bad = await page.request.get("/auth/dev-login?email=nobody", { maxRedirects: 0 })
  expect(bad.status()).toBe(302)
  expect(bad.headers().location).toBe("/auth/sign-in?error=failed")
})

test("an address that needs a person is sent to sign in and brought back, whoever it names", async ({ page }) => {
  await page.goto("/acme-review/general")
  await expect(page).toHaveURL(/\/auth\/sign-in\?return_to=%2Facme-review%2Fgeneral$/)
  await page.getByLabel("E-mail address").fill("ada@example.test")
  await page.getByRole("button", { name: "Sign in" }).click()
  await expect(page).toHaveURL(/\/acme-review\/general$/)
  await expect(page.getByRole("heading", { level: 1, name: "Workspace General" })).toBeVisible()
  // A return address outside this app is not followed.
  const away = await page.request.get("/auth/dev-login?email=ada@example.test&return_to=https://evil.example/", {
    maxRedirects: 0,
  })
  expect(away.headers().location).toBe("/")
})

test("the demo data: two organizations, one with a tenant brand, and the switcher between them", async ({ page }) => {
  await signIn(page, "ada@example.test")
  await page.goto("/")
  await expect(page.getByRole("link", { name: "Acme Review" })).toBeVisible()
  await expect(page.getByRole("link", { name: "Northwind Traders" })).toBeVisible()

  await page.goto("/acme-review")
  await expect(page.locator("[data-tenant-brand]")).toHaveCount(0)
  await expect(page.getByLabel("Switch organization")).toBeVisible()
  expect(await violations(page)).toEqual([])

  await page.getByLabel("Switch organization").selectOption("northwind")
  await expect(page).toHaveURL(/\/northwind$/)
  await expect(page.locator('[data-tenant-brand="#1a1a8c"]')).toHaveCount(1)
  await expect(page.getByRole("link", { name: "Northwind", exact: true })).toBeVisible()
  expect(await violations(page)).toEqual([])

  // Linus is in one organization only: nothing to switch between.
  const linus = await person(page.context().browser() as Browser, "linus@example.test")
  await linus.page.goto("/acme-review")
  await expect(linus.page.getByLabel("Switch organization")).toHaveCount(0)
  await linus.context.close()
})

test("the browser can initialize MCP, list exactly the opted-in tools, and call the scoped note-list tool", async ({
  page,
}) => {
  await signIn(page, "ada@example.test")
  const scope = await makeOrganization(page, "mcp")
  const csrf = await page.locator('meta[name="csrf-token"]').getAttribute("content")
  const headers = {
    "content-type": "application/json",
    accept: "application/json, text/event-stream",
    "x-csrf-token": csrf ?? "",
    "sec-fetch-site": "same-origin",
    "mcp-protocol-version": "2025-11-25",
  }
  const rpcBody = async (response: Awaited<ReturnType<typeof page.request.post>>) => {
    const text = await response.text()
    if (response.headers()["content-type"]?.includes("text/event-stream")) {
      const data = text.split("\n").find((line) => line.startsWith("data: "))
      if (!data) throw new Error("MCP response had no event data")
      return JSON.parse(data.slice("data: ".length))
    }
    return JSON.parse(text)
  }

  const initialize = await page.request.post("/api/mcp", {
    headers,
    data: {
      jsonrpc: "2.0",
      id: 1,
      method: "initialize",
      params: {
        protocolVersion: "2025-11-25",
        capabilities: {},
        clientInfo: { name: "app-template-browser-e2e", version: "1.0.0" },
      },
    },
  })
  expect(initialize.status()).toBe(200)
  expect((await rpcBody(initialize)).result.protocolVersion).toBe("2025-11-25")

  const listed = await page.request.post("/api/mcp", { headers, data: { jsonrpc: "2.0", id: 2, method: "tools/list" } })
  const tools = (await rpcBody(listed)).result.tools as Array<{ name: string }>
  expect(listed.status()).toBe(200)
  // Exactly the procedures whose contract opts in with `.tool()` (docs/reference/app-kit.md), in registry
  // order: the notes list, the knowledge module's retrieval and the agent module's run status, which opt
  // in on purpose; no other read or write of any module (test/mcp.test.ts asserts the same list).
  expect(tools.map((tool) => tool.name)).toEqual(["agent.run.status", "knowledge.search", "notes.note.list"])

  const called = await page.request.post("/api/mcp", {
    headers,
    data: {
      jsonrpc: "2.0",
      id: 3,
      method: "tools/call",
      params: { name: "notes.note.list", arguments: scope },
    },
  })
  expect(called.status()).toBe(200)
  expect((await rpcBody(called)).result).toMatchObject({
    structuredContent: { notes: [], hasMore: false },
  })

  const refused = await page.request.post("/api/mcp", {
    headers,
    data: { jsonrpc: "2.0", id: 4, method: "tools/call", params: { name: "notes.note.create", arguments: {} } },
  })
  expect((await rpcBody(refused)).error.code).toBe(-32602)
})

test("MCP enforces the real session, CSRF token, and tenant scope at its HTTP boundary", async ({ browser }) => {
  const owner = await person(browser, `${unique("mcp-owner")}@example.test`)
  const foreign = await makeOrganization(owner.page, "mcp-private")
  const secret = unique("tenant-private-note")
  await call(owner.page, "notes.note.create", { ...foreign, title: "Private note", body: secret })

  const noSession = await browser.newContext({ baseURL: base })
  const anonymous = await noSession.newPage()
  const requestBody = (id: number, method: string, params?: unknown) => ({
    jsonrpc: "2.0",
    id,
    method,
    ...(params === undefined ? {} : { params }),
  })
  const noAuth = await anonymous.request.post("/api/mcp", {
    headers: { "content-type": "application/json", accept: "application/json, text/event-stream" },
    data: requestBody(1, "initialize"),
  })
  expect(noAuth.status()).toBe(401)
  await noSession.close()

  const csrf = await owner.page.locator('meta[name="csrf-token"]').getAttribute("content")
  const initialized = await owner.page.request.post("/api/mcp", {
    headers: {
      "content-type": "application/json",
      accept: "application/json, text/event-stream",
      "sec-fetch-site": "same-origin",
      "x-csrf-token": csrf ?? "",
      "mcp-protocol-version": "2025-11-25",
    },
    data: requestBody(2, "initialize", {
      protocolVersion: "2025-11-25",
      capabilities: {},
      clientInfo: { name: "app-template-security-e2e", version: "1.0.0" },
    }),
  })
  expect(initialized.status()).toBe(200)

  const withoutCsrf = await owner.page.request.post("/api/mcp", {
    headers: {
      "content-type": "application/json",
      accept: "application/json, text/event-stream",
      "sec-fetch-site": "same-origin",
      "mcp-protocol-version": "2025-11-25",
    },
    data: requestBody(3, "tools/list"),
  })
  expect(withoutCsrf.status()).toBe(403)

  const stranger = await person(browser, `${unique("mcp-stranger")}@example.test`)
  const strangerCsrf = await stranger.page.locator('meta[name="csrf-token"]').getAttribute("content")
  const crossTenant = await stranger.page.request.post("/api/mcp", {
    headers: {
      "content-type": "application/json",
      accept: "application/json, text/event-stream",
      "sec-fetch-site": "same-origin",
      "x-csrf-token": strangerCsrf ?? "",
      "mcp-protocol-version": "2025-11-25",
    },
    data: requestBody(4, "tools/call", {
      name: "notes.note.list",
      arguments: foreign,
    }),
  })
  expect(crossTenant.status()).toBe(200)
  const responseText = await crossTenant.text()
  const event = responseText.split("\n").find((line) => line.startsWith("data: "))
  const rpcResponse = crossTenant.headers()["content-type"]?.includes("text/event-stream")
    ? event?.slice("data: ".length)
    : responseText
  expect(rpcResponse).toBeDefined()
  const result = JSON.parse(rpcResponse ?? "null") as {
    result?: { isError?: boolean; content?: Array<{ text?: string }>; structuredContent?: unknown }
  }
  expect(result.result?.isError).toBe(true)
  expect(JSON.stringify(result)).not.toContain(secret)
  expect(JSON.stringify(result.result?.structuredContent ?? null)).not.toContain(secret)
  expect(result.result?.content?.[0]?.text).toBe("The tool request was refused.")

  await owner.context.close()
  await stranger.context.close()
})

test("a stranger cannot tell an organization that is not theirs from one that does not exist", async ({ browser }) => {
  const { page, context } = await person(browser, `${unique("stranger")}@example.test`)
  const seen: Array<{ status: number; text: string }> = []
  for (const path of ["/acme-review", "/no-such-organization", "/acme-review/general/demo", "/northwind/general"]) {
    const response = await page.goto(path)
    seen.push({ status: response?.status() ?? 0, text: await mainText(page) })
  }
  expect(seen.map((entry) => entry.status)).toEqual([404, 404, 404, 404])
  expect(new Set(seen.map((entry) => entry.text)).size).toBe(1)
  expect(seen[0]?.text).toContain("Page not found")
  expect(await violations(page)).toEqual([])
  await context.close()
})

test("a member whose role does not allow a page gets a 403 and no link to it", async ({ browser }) => {
  const { page, context } = await person(browser, "linus@example.test")
  for (const path of ["/acme-review/settings", "/acme-review/audit"]) {
    const response = await page.goto(path)
    expect(response?.status(), path).toBe(403)
    await expect(page.getByRole("heading", { level: 1, name: "You do not have access" })).toBeVisible()
  }
  expect(await violations(page)).toEqual([])
  await page.goto("/acme-review")
  await expect(page.getByRole("link", { name: "Audit" })).toHaveCount(0)
  // The members page shows a viewer the list and none of the controls.
  await page.goto("/acme-review/members")
  await expect(page.getByRole("heading", { level: 1, name: "Members" })).toBeVisible()
  await expect(page.getByRole("heading", { name: "Invite" })).toHaveCount(0)
  await context.close()
})

test("an organization, a workspace and a project are made from the pages, and each page passes axe", async ({
  browser,
}) => {
  const { page, context } = await person(browser, `${unique("founder")}@example.test`)
  const slug = unique("studio")

  await page.goto("/onboarding")
  await page.getByLabel("Name", { exact: true }).fill("Studio")
  await page.getByLabel("Short name").fill(slug)
  await page.getByRole("button", { name: "Create" }).click()
  await expect(page).toHaveURL(new RegExp(`/${slug}$`))
  expect(await violations(page)).toEqual([])

  await page.goto(`/${slug}/workspaces`)
  await expect(page.getByRole("heading", { level: 1, name: "Workspaces" })).toBeVisible()
  await page.getByLabel("Name", { exact: true }).fill("Research")
  await page.getByLabel("Short name").fill("research")
  await page.getByRole("button", { name: "Create" }).click()
  await expect(page.getByRole("link", { name: "Research" })).toBeVisible()
  expect(await violations(page)).toEqual([])

  // A workspace cannot take the name of a page of the shell.
  await page.getByLabel("Name", { exact: true }).fill("Members")
  await page.getByLabel("Short name").fill("members")
  await page.getByRole("button", { name: "Create" }).click()
  await expect(alerts(page)).toContainText("reserved")

  await page.goto(`/${slug}/research`)
  await expect(page.getByRole("heading", { level: 1, name: "Workspace Research" })).toBeVisible()
  await expect(page.getByText("There are no projects in this workspace yet.")).toBeVisible()
  await page.getByLabel("Name", { exact: true }).fill("Field notes")
  await page.getByLabel("Short name").fill("field-notes")
  await page.getByLabel("Module").selectOption("notes")
  await page.getByRole("button", { name: "Create" }).click()
  await page.getByRole("link", { name: "Field notes" }).click()

  await expect(page).toHaveURL(new RegExp(`/${slug}/research/field-notes$`))
  await expect(page.getByRole("heading", { level: 1, name: "Project Field notes" })).toBeVisible()
  await expect(page.getByRole("link", { name: "Notes" })).toBeVisible()
  await expect(page.getByRole("link", { name: "Documents" })).toBeVisible()
  await expect(page.getByRole("navigation", { name: "Path" })).toBeVisible()
  expect(await violations(page)).toEqual([])
  await context.close()
})

test("an invitation: made by an administrator, opened signed out, accepted once, and every other state worded", async ({
  browser,
}) => {
  const owner = await person(browser, `${unique("owner")}@example.test`)
  const slug = unique("guild")
  await call(owner.page, "tenancy.org.create", { slug, name: "Guild" })

  await owner.page.goto(`/${slug}/members`)
  await owner.page.getByLabel("E-mail address").fill("invited@example.test")
  await owner.page.getByLabel("Role").first().selectOption("member")
  await owner.page.getByRole("button", { name: "Invite" }).click()
  await expect(owner.page.getByText("It works once, for that address only")).toBeVisible()
  const link = await owner.page.getByLabel("Invitation link").inputValue()
  expect(link).toMatch(new RegExp(`/invitations/${slug}/[A-Za-z0-9_-]{20,}$`))
  expect(await violations(owner.page)).toEqual([])
  await owner.page.reload()
  await expect(owner.page.getByRole("cell", { name: "invited@example.test" })).toBeVisible()
  const path = new URL(link).pathname

  // Signed out: asked to sign in, brought back to the same link, and opening it consumed nothing.
  const guestContext = await browser.newContext({ baseURL: base })
  const guest = await guestContext.newPage()
  await guest.goto(path)
  await expect(guest.getByRole("heading", { level: 1, name: "Your invitation" })).toBeVisible()
  await expect(guest.getByText("Sign in with the e-mail address the invitation was sent to")).toBeVisible()
  expect(await violations(guest)).toEqual([])
  await guest.getByRole("link", { name: "Sign in" }).last().click()
  await expect(guest).toHaveURL(/\/auth\/sign-in\?return_to=/)
  await guest.getByLabel("E-mail address").fill("invited@example.test")
  await guest.getByRole("button", { name: "Sign in" }).click()
  await expect(guest).toHaveURL(new RegExp(`${path}$`))

  // Signed in as somebody else: the one "not valid", which does not say whether the token exists.
  const other = await person(browser, `${unique("other")}@example.test`)
  await other.page.goto(path)
  await other.page.getByRole("button", { name: "Accept the invitation" }).click()
  await expect(alerts(other.page)).toContainText("not valid for the account you are signed in with")
  await other.context.close()

  // The invitee: accepted, once.
  await expect(guest.getByText("You are signed in as invited@example.test.")).toBeVisible()
  expect(await violations(guest)).toEqual([])
  await guest.getByRole("button", { name: "Accept the invitation" }).click()
  await expect(guest.getByRole("status")).toContainText(`You joined ${slug}.`)
  await guest.getByRole("link", { name: `Open ${slug}` }).click()
  await expect(guest).toHaveURL(new RegExp(`/${slug}$`))

  // The same link again: used. In Lithuanian, too.
  await guest.goto(path)
  await guest.getByRole("button", { name: "Accept the invitation" }).click()
  await expect(alerts(guest)).toContainText("This invitation has already been used.")
  await guest.getByLabel("Language").selectOption("lt")
  await guest.getByRole("button", { name: "Priimti kvietimą" }).click()
  await expect(alerts(guest)).toContainText("Šis kvietimas jau panaudotas.")
  expect(await violations(guest)).toEqual([])

  await guestContext.close()
  await owner.context.close()
})

test("the language is the person's own and follows them; the theme is this screen's", async ({ browser }) => {
  const email = `${unique("polyglot")}@example.test`
  const first = await person(browser, email)
  await first.page.goto("/")
  await expect(first.page.getByRole("heading", { level: 1, name: "Organizations" })).toBeVisible()
  await first.page.getByLabel("Language").selectOption("lt")
  await expect(first.page.getByRole("heading", { level: 1, name: "Organizacijos" })).toBeVisible()
  await expect(first.page.locator("html")).toHaveAttribute("lang", "lt")
  expect(await violations(first.page)).toEqual([])
  await first.context.close()

  // Another browser, no cookie: the choice was saved on the user.
  const second = await person(browser, email)
  await second.page.goto("/")
  await expect(second.page.getByRole("heading", { level: 1, name: "Organizacijos" })).toBeVisible()

  // The theme: dark first, the root carries the class, and the server renders it back.
  const root = second.page.locator("html")
  await expect(root).not.toHaveClass(/light/)
  await second.page.getByRole("button", { name: /^Tema: Tamsi$/ }).click()
  await expect(root).toHaveClass(/light/)
  await expect(second.page.locator(".light")).toHaveCount(1)
  await second.page.reload()
  await expect(root).toHaveClass(/light/)
  expect(await violations(second.page)).toEqual([])
  const html = await (await second.page.request.get("/")).text()
  expect(html).toMatch(/<html[^>]*class="light"/)
  await second.context.close()
})

test("the health and readiness endpoints answer booleans and nothing that names a reason", async ({ request }) => {
  const health = await request.get("/api/health")
  expect(health.status()).toBe(200)
  expect(await health.json()).toMatchObject({ status: "ok" })

  const ready = await request.get("/api/ready")
  expect(ready.status()).toBe(200)
  expect(await ready.json()).toEqual({
    ready: true,
    checks: { store: true, reader: true, migrations: true, platform: true },
  })
})

test("a request carries its trace id into the web shell's logs and spans, and no secret leaves", async ({ page }) => {
  await signIn(page, "ada@example.test")
  const trace = "4bf92f3577b34da6a3ce929d0e0e4736"
  const csrf = (await page.locator('meta[name="csrf-token"]').getAttribute("content")) ?? ""
  const response = await page.request.post("/api/v1/tenancy.org.get", {
    headers: {
      "x-csrf-token": csrf,
      "content-type": "application/json",
      "sec-fetch-site": "same-origin",
      traceparent: `00-${trace}-00f067aa0ba902b7-01`,
      "x-request-id": "e2e-request-1",
    },
    data: { org: "acme-review" },
  })
  expect(response.status()).toBe(200)
  expect(response.headers()["x-request-id"]).toBe("e2e-request-1")

  await expect(async () => {
    const { otel } = await platformState()
    // The bodies of what the platform received: the request's own headers (the token it authenticates with) are not what is under test.
    const logs = JSON.stringify(otel.logs.map((record) => record.body))
    expect(logs).toContain(trace)
    expect(logs).toContain("tenancy.org.get")
    const traces = JSON.stringify(otel.traces.map((record) => record.body))
    expect(traces).toContain("procedure tenancy.org.get")
    // The deployment token, the session secret and the person's address never reach the platform's log.
    for (const secret of ["e2e-token", "ada@example.test"]) expect(logs + traces).not.toContain(secret)
  }).toPass({ timeout: 30_000 })
})