// SPDX-License-Identifier: LicenseRef-ConusAI-Template-1.0
// The whole app of this template on the in-memory data source, wired the way apps/web and apps/worker
// wire it, for the notes module's tests: the registry of every module, one caller per actor, the
// outbox relay's behaviour and the worker's job runner.
//
// `deliver()` stands in for the outbox relay: it drains the outbox once, runs each record's
// subscribers in a child container with the record's organization and a system actor, and marks it
// published -- exactly once per subscriber, never more forgiving than the real relay. `runJobs()`
// stands in for the worker's job runner. What neither does is retry, so a test of a redelivery
// runs a handler again itself.

import { type Actor, buildRegistry, Container, createCaller, type TransportCaller } from "@conusai-kit/core"
import { systemActor } from "@conusai-kit/core/worker"
import {
  createMemoryDataSource,
  DATA_SOURCE,
  entitiesOf,
  JOB_QUEUE,
  OBJECT_STORE,
  SYSTEM_DATA,
} from "@conusai-kit/data"
import { FILES_AUDIT, FILES_REGISTRY, FILES_SCOPE, FILES_USAGE } from "@conusai-kit/files"
import { PROPOSALS_REGISTRY } from "@conusai-kit/proposals"
import { createTenancyHooks, TENANCY, users } from "@conusai-kit/tenancy"
import {
  fakeJobQueue,
  fakeObjectStore,
  recordingAudit,
  recordingUsage,
  uploadViaProcedures,
} from "@conusai-kit/testing"
import { appModules } from "../../modules/index.js"
import { NOTES_FLAGS, type NotesFlags } from "../../modules/notes/index.js"

export interface SeededProject {
  readonly owner: Actor
  readonly call: TransportCaller
  readonly orgSlug: string
  readonly orgId: string
  readonly slugs: { org: string; workspace: string; project: string }
}

/** Standard base64 of some text, for the upload procedure's body. */
export const bytesOf = (text: string): Uint8Array => new TextEncoder().encode(text)

export function makeNotesApp(options: { flags?: NotesFlags } = {}) {
  const registry = buildRegistry([...appModules])
  const entities = entitiesOf(registry, "postgres")
  const data = createMemoryDataSource({ entities })
  const store = fakeObjectStore()
  const queue = fakeJobQueue()
  const audit = recordingAudit()
  const usage = recordingUsage()

  const root = new Container()
  root.value(DATA_SOURCE, data)
  root.value(SYSTEM_DATA, data)
  root.value(OBJECT_STORE, store)
  root.value(JOB_QUEUE, queue)
  root.value(FILES_REGISTRY, registry)
  root.value(FILES_AUDIT, audit)
  root.value(FILES_USAGE, usage)
  root.value(PROPOSALS_REGISTRY, registry)
  if (options.flags) root.value(NOTES_FLAGS, options.flags)

  const caller = (actor: Actor): TransportCaller => {
    const tenancy = createTenancyHooks({ data, registry })
    const container = root.child()
    container.value(TENANCY, tenancy)
    return createCaller({ registry, container, tenancy }, { actor })
  }

  const signUp = async (email: string): Promise<Actor> => {
    const user = await data.global(users).insert({
      issuer: "https://id.example.test",
      subject: email,
      email,
      displayName: email.split("@")[0] ?? email,
      locale: "en",
    })
    return { userId: user.id }
  }

  /** Runs every subscriber of every record in the outbox, once each; answers how many ran. */
  const deliver = async (): Promise<number> => {
    let ran = 0
    for (const record of await data.outbox.pending(500)) {
      const entry = registry.events[record.name]
      for (const subscriber of entry?.subscribers ?? []) {
        const container = root.child()
        container.value(FILES_SCOPE, { level: "org", actor: systemActor("app.relay"), orgId: record.orgId })
        await subscriber.handler(
          { name: record.name, payload: record.payload },
          { container, correlationId: record.id },
        )
        ran += 1
      }
      await data.outbox.markPublished([record.id])
    }
    return ran
  }

  /** The jobs not yet run, in the order they were enqueued. */
  let consumed = 0
  const runJobs = async (): Promise<number> => {
    let ran = 0
    while (consumed < queue.jobs.length) {
      const job = queue.jobs[consumed] as (typeof queue.jobs)[number]
      consumed += 1
      const registered = registry.jobs[job.job]
      if (!registered) throw new Error(`no module declares the job ${job.job}`)
      const container = root.child()
      container.value(TENANCY, createTenancyHooks({ data, registry }))
      container.value(FILES_SCOPE, { ...job.scope, actor: systemActor(job.job) })
      await registered.def.handler(registered.def.payload.parse(job.payload), {
        container,
        correlationId: job.id,
        attempt: 1,
      })
      ran += 1
    }
    return ran
  }

  async function seedProject(slug: string, email: string): Promise<SeededProject> {
    const owner = await signUp(email)
    const call = caller(owner)
    const org = (await call.callByName("tenancy.org.create", { slug, name: slug })) as { orgId: string; slug: string }
    const workspace = (await call.callByName("tenancy.workspace.create", {
      org: slug,
      slug: `ws-${slug}`,
      name: `Workspace ${slug}`,
      visibility: "org",
    })) as { slug: string }
    const project = (await call.callByName("tenancy.project.create", {
      org: slug,
      workspace: workspace.slug,
      slug: `p-${slug}`,
      name: `Project ${slug}`,
      moduleKey: "notes",
    })) as { slug: string }
    return {
      owner,
      call,
      orgSlug: org.slug,
      orgId: org.orgId,
      slugs: { org: org.slug, workspace: workspace.slug, project: project.slug },
    }
  }

  /** A signed-up user who joined the project's organization with a role. */
  async function addMember(project: SeededProject, email: string, role: "viewer" | "member" | "admin") {
    const actor = await signUp(email)
    const invite = (await project.call.callByName("tenancy.member.invite", {
      org: project.orgSlug,
      email,
      role,
    })) as { token: string }
    const call = caller(actor)
    await call.callByName("tenancy.invitation.accept", { org: project.orgSlug, token: invite.token })
    return { actor, call }
  }

  /** Uploads a small text file through the files module, the way the page's form does. */
  async function upload(project: SeededProject, filename = "minutes.txt", text = "agreed") {
    return await uploadViaProcedures(project.call, project.slugs, {
      filename: filename,
      contentType: "text/plain",
      bytes: bytesOf(text),
    })
  }

  return {
    registry,
    /** The process container the procedures resolve their ports from (a seed script needs it). */
    root,
    data,
    entities,
    store,
    queue,
    audit,
    usage,
    caller,
    signUp,
    deliver,
    runJobs,
    seedProject,
    addMember,
    upload,
  }
}

export type NotesApp = ReturnType<typeof makeNotesApp>