import { syntheticNativeReadiness } from "../../../test/support/native-readiness.js"
// A refusal of the platform's knowledge service reaches a person as one typed code: the procedures end to
// end, on the real module, with the service's client refusing underneath; and each code a form looks up.

import { AppError, buildRegistry, Container, createCaller, type TransportCaller } from "@conusai-kit/core"
import { createMemoryDataSource, DATA_SOURCE, entitiesOf, OBJECT_STORE, SYSTEM_DATA } from "@conusai-kit/data"
import { FILES_REGISTRY, filesModule } from "@conusai-kit/files"
import { createI18n } from "@conusai-kit/i18n"
import { KnowledgeError, type KnowledgeReasonCode } from "@conusai-kit/platform"
import { createTenancyHooks, TENANCY, tenancyModule, users } from "@conusai-kit/tenancy"
import { fakeObjectStore } from "@conusai-kit/testing"
import { describe, expect, it } from "vitest"
import { knowledgeRefusal } from "../adapters/refusals.js"
import { KNOWLEDGE_REFUSALS, type KnowledgeRefusal } from "../contract/index.js"
import {
  KNOWLEDGE_ENABLEMENT,
  KNOWLEDGE_FLAGS,
  KNOWLEDGE_READINESS,
  KNOWLEDGE_SEARCH,
  type KnowledgeSearchService,
} from "../core/ports.js"
import { knowledgeModule } from "../index.js"
import { refusalLabels, refusalOf } from "../ui/labels.js"

async function app(
  service: KnowledgeSearchService,
  options: { flags?: boolean } = {},
): Promise<{ call: TransportCaller; slugs: Record<string, string> }> {
  const registry = buildRegistry([tenancyModule, filesModule, knowledgeModule])
  const data = createMemoryDataSource({ entities: entitiesOf(registry, "postgres") })
  const root = new Container()
  root.value(DATA_SOURCE, data)
  root.value(SYSTEM_DATA, data)
  root.value(OBJECT_STORE, fakeObjectStore())
  root.value(FILES_REGISTRY, registry)
  root.value(KNOWLEDGE_SEARCH, service)
  root.value(KNOWLEDGE_READINESS, service)
  root.value(KNOWLEDGE_ENABLEMENT, { checkEligibility: async () => ({ ok: true }), indexingQuota: async () => 1000 })
  if (options.flags !== false) root.value(KNOWLEDGE_FLAGS, { enabled: () => true })
  const user = await data.global(users).insert({
    issuer: "https://id.example.test",
    subject: "owner",
    email: "owner@example.test",
    displayName: "Owner",
    locale: "en",
  })
  const container = root.child()
  const tenancy = createTenancyHooks({ data, registry })
  container.value(TENANCY, tenancy)
  const call = createCaller(
    { registry, container, tenancy, serviceReadiness: syntheticNativeReadiness },
    { actor: { userId: user.id } },
  )
  await call.callByName("tenancy.org.create", { slug: "acme", name: "Acme" })
  await call.callByName("tenancy.workspace.create", { org: "acme", slug: "ws", name: "WS", visibility: "org" })
  await call.callByName("tenancy.project.create", {
    org: "acme",
    workspace: "ws",
    slug: "p",
    name: "P",
    moduleKey: "knowledge",
  })
  return { call, slugs: { org: "acme", workspace: "ws", project: "p" } }
}

const refusing = (reason: KnowledgeReasonCode): KnowledgeSearchService => ({
  readiness: async () => ({ state: "disabled", reasons: [], refusal: "plan_required" }),
  index: async () => undefined,
  search: async () => {
    throw new KnowledgeError(reason, "the service's own words")
  },
  remove: async () => undefined,
})

describe("a refused search", () => {
  it.each([
    ["plan_required", "plan_required", 403],
    ["feature_disabled", "feature_disabled", 403],
    ["quota_exhausted", "quota_exhausted", 429],
    ["budget_exhausted", "budget_exhausted", 429],
    ["forbidden", "scope_missing", 503],
    ["indexing", "indexing", 503],
    ["approval_required", "approval_required", 403],
    ["runtime_unavailable", "runtime_unavailable", 503],
    ["unauthenticated", "runtime_unavailable", 503],
  ] as const)("by %s answers %s", async (reason, code, status) => {
    const { call, slugs } = await app(refusing(reason))
    await call.callByName("knowledge.collection.create", { ...slugs, name: "contracts" })
    const refused = await call
      .callByName("knowledge.search", { ...slugs, collectionName: "contracts", query: "anything" })
      .catch((error: unknown) => error)
    expect(refused).toBeInstanceOf(AppError)
    expect((refused as AppError).problem).toMatchObject({ code, status })
  })

  it("leaves a resource the service does not hold as not found, and a programming error as it is", () => {
    const missing = knowledgeRefusal(new KnowledgeError("unavailable_resource", "no such collection"))
    expect((missing as AppError).problem.status).toBe(404)
    const bug = new TypeError("not a refusal")
    expect(knowledgeRefusal(bug)).toBe(bug)
  })
})

describe("the status a page reads", () => {
  it("carries the service's refusal through the read procedure", async () => {
    const { call, slugs } = await app(refusing("plan_required"))
    expect(await call.callByName("knowledge.status", slugs)).toMatchObject({
      enabled: true,
      service: { state: "disabled", reasons: [], refusal: "plan_required" },
    })
  })
})

describe("enabling document AI", () => {
  const ready: KnowledgeSearchService = {
    readiness: async () => ({ state: "ready", reasons: [] }),
    index: async () => undefined,
    search: async () => [],
    remove: async () => undefined,
  }

  it("turns knowledge on for the organization's projects, and disabling turns it off again", async () => {
    const { call, slugs } = await app(ready, { flags: false })
    const enabled = async () => ((await call.callByName("knowledge.status", slugs)) as { enabled: boolean }).enabled
    expect(await enabled()).toBe(false)
    await call.callByName("knowledge.settings.enableDocumentAi", { org: slugs.org })
    expect(await enabled()).toBe(true)
    await call.callByName("knowledge.settings.disableDocumentAi", { org: slugs.org })
    expect(await enabled()).toBe(false)
  })
})

describe("a form's refusal", () => {
  const t = (key: string) => key
  it("names every typed refusal, and leaves any other error to the form's own text", () => {
    const labels = refusalLabels(t)
    expect(Object.keys(labels).sort()).toEqual([...KNOWLEDGE_REFUSALS].sort())
    const refused = (code: KnowledgeRefusal) => ({ problem: { code } })
    expect(refusalOf(labels, refused("scope_missing"))).toEqual({
      code: "scope_missing",
      text: "refusals.scope_missing",
    })
    expect(refusalOf(labels, { problem: { code: "not_found" } })).toBeUndefined()
    expect(refusalOf(labels, new Error("boom"))).toBeUndefined()
  })

  it("has a message in both languages, the Lithuanian one its own", () => {
    const catalogues = buildRegistry([tenancyModule, filesModule, knowledgeModule]).catalogues
    const en = createI18n("en", { en: { knowledge: catalogues.en?.knowledge ?? {} } })
    const lt = createI18n("lt", { lt: { knowledge: catalogues.lt?.knowledge ?? {} } })
    for (const code of KNOWLEDGE_REFUSALS) {
      const english = en.message(`knowledge.refusals.${code}`)
      expect(english, code).not.toContain("refusals.")
      expect(lt.message(`knowledge.refusals.${code}`), code).not.toBe(english)
    }
  })
})