// SPDX-License-Identifier: LicenseRef-ConusAI-Template-1.0
// What every spec does: sign in through the dev adapter, call a procedure the way the page's own
// forms do (with the page's CSRF token), and make an organization to work in.

import { randomBytes } from "node:crypto"
import { type APIRequestContext, expect, type Page } from "@playwright/test"
import axe from "axe-core"

export const unique = (prefix: string): string => `${prefix}-${randomBytes(3).toString("hex")}`

/** Signs in as `email` (created on first use) and lands on the home page. */
export async function signIn(page: Page, email: string): Promise<void> {
  await page.goto(`/auth/dev-login?email=${encodeURIComponent(email)}`)
  await expect(page.locator('meta[name="csrf-token"]')).toHaveCount(1)
}

/** The CSRF token of the page the browser is on: what the page's own forms send back. */
const csrfOf = (page: Page): Promise<string> =>
  page
    .locator('meta[name="csrf-token"]')
    .getAttribute("content")
    .then((value) => value ?? "")

/** Calls a procedure with the session of `page`. Throws on a refusal, with the problem's own words. */
export async function call<T = unknown>(page: Page, procedure: string, input: unknown): Promise<T> {
  const response = await callRaw(page.request, await csrfOf(page), procedure, input)
  const body = (await response.json().catch(() => null)) as T
  if (!response.ok()) throw new Error(`${procedure} answered ${response.status()}: ${JSON.stringify(body)}`)
  return body
}

export const callRaw = (request: APIRequestContext, csrf: string, procedure: string, input: unknown) =>
  request.post(`/api/v1/${procedure}`, {
    data: input,
    headers: { "x-csrf-token": csrf, "content-type": "application/json", "sec-fetch-site": "same-origin" },
  })

export interface Workspace {
  org: string
  workspace: string
  project: string
}

/** The signed-in user's own organization with one workspace and one project. */
export async function makeOrganization(page: Page, prefix = "acme"): Promise<Workspace> {
  const org = unique(prefix)
  await call(page, "tenancy.org.create", { slug: org, name: `Org ${org}` })
  const workspace = (
    await call<{ slug: string }>(page, "tenancy.workspace.create", {
      org,
      slug: "main",
      name: "Main",
      visibility: "org",
    })
  ).slug
  const project = (
    await call<{ slug: string }>(page, "tenancy.project.create", {
      org,
      workspace,
      slug: "review",
      name: "Review",
      moduleKey: "documents",
    })
  ).slug
  return { org, workspace, project }
}

/** Puts axe into the page. */
async function injectAxe(page: Page): Promise<void> {
  await page.addScriptTag({ content: axe.source })
}

/** WCAG 2.2 AA violations on the page the browser is on, as axe finds them. */
export async function violations(page: Page): Promise<string[]> {
  await injectAxe(page)
  const results = await page.evaluate(() =>
    (
      globalThis as unknown as {
        axe: {
          run(
            context: unknown,
            options: unknown,
          ): Promise<{ violations: Array<{ id: string; nodes: Array<{ target: unknown[] }> }> }>
        }
      }
    ).axe.run(document, { runOnly: { type: "tag", values: ["wcag2a", "wcag2aa", "wcag21a", "wcag21aa", "wcag22aa"] } }),
  )
  return results.violations.map(
    (violation) => `${violation.id}: ${violation.nodes.map((node) => node.target.join(" ")).join(", ")}`,
  )
}

/** What the fake platform has recorded: the audit events and usage facts the worker sent, and the blobs it stored. */
export interface PlatformState {
  audit: Array<{ action: string; resource_id: string | null }>
  usage: Array<Record<string, unknown>>
  blobs: Array<{ pathname: string; contentType: string; size: number }>
  otel: { logs: Array<Record<string, unknown>>; traces: Array<Record<string, unknown>> }
}

export async function platformState(): Promise<PlatformState> {
  const base = process.env.E2E_PLATFORM_URL
  if (!base) throw new Error("e2e: E2E_PLATFORM_URL is set by the global setup")
  const response = await fetch(`${base}/__e2e/state`)
  if (!response.ok) throw new Error(`e2e: the fake platform answered ${response.status}`)
  return (await response.json()) as PlatformState
}