// ── The demo refuses a step at save (MODULE_API 1.19.0, DEMO_MODE.md §3.4) ──
//
// DM18: an event action may declare `demoRefuses(params)`. With DEMO_MODE on,
// the definition save path asks it for every step at create, save and publish,
// and a sentence back refuses the write `403 DEMO_LOCKED`. Off the demo it is
// never called. The definitions table is stubbed on the module object the model
// holds; the pool points at a closed port.
process.env.DB_HOST = '127.0.0.1'
process.env.DB_PORT = '59999'

const { test, beforeEach, afterEach, after } = require('node:test')
const assert = require('node:assert/strict')

const db = require('../src/utils/db')
const registries = require('../src/modules/registries')
const definitions = require('../src/model/events/eventDefinitions.model')
const definitionsDb = require('../src/model/events/eventDefinitions.db')
const controller = require('../src/router/v1/admin/events.controller')

after(() => db.close())

let asked

const register = (extra = {}) => {
  const api = registries.stage('demo')
  api.registerEventActions([{
    id: 'demo.console.run',
    label: 'Run console commands',
    risk: 'irreversible',
    reversible: 'none',
    params: [{ name: 'command', type: 'string', required: true, example: 'say hi' }],
    perform: async () => ({ ok: true }),
    demoRefuses: (params) => {
      asked.push(params)
      return params.command === 'quit' ? '"quit" is turned off on the demo site.' : null
    },
    ...extra,
  }])
  registries.apply(api.staged)
}

const input = (command) => ({
  title: 'Console night',
  spec: {
    schedule: { kind: 'manual' },
    phases: [{ key: 'main', label: 'Main', steps: [{ actionId: 'demo.console.run', params: { command } }] }],
  },
})

const stubTable = (t, existing = null) => {
  const wrote = []
  t.mock.method(definitionsDb, 'list', async () => [])
  t.mock.method(definitionsDb, 'insert', async (row) => { wrote.push(row); return 7 })
  t.mock.method(definitionsDb, 'update', async (_id, row) => { wrote.push(row) })
  t.mock.method(definitionsDb, 'getById', async () => existing || { id: 7, state: 'draft', title: 'Console night', spec: input('say hi').spec })
  return wrote
}

beforeEach(() => {
  asked = []
  registries._reset()
  registries.registerCore()
})
afterEach(() => {
  registries._reset()
  delete process.env.DEMO_MODE
})

test('demoRefuses must be a function, and never rides out to the catalog', () => {
  assert.throws(() => register({ demoRefuses: 'quit' }), /demoRefuses must be a function/)
  registries._reset()
  register()
  assert.equal(typeof registries.eventAction('demo.console.run').demoRefuses, 'function')
  const served = registries.allEventActions().find((a) => a.id === 'demo.console.run')
  assert.equal('demoRefuses' in served, false)
})

test('off the demo the hook is never asked, and a denied command saves', async (t) => {
  register()
  const wrote = stubTable(t)
  const made = await definitions.create(input('quit'), 1, { role: 'admin' })
  assert.equal(made.ok, true)
  assert.equal(wrote.length, 1)
  assert.deepEqual(asked, [])
})

test('on the demo a create naming a denied command is refused 403 DEMO_LOCKED and writes nothing', async (t) => {
  process.env.DEMO_MODE = 'true'
  register()
  const wrote = stubTable(t)
  const made = await definitions.create(input('quit'), 1, { role: 'admin' })
  assert.deepEqual(made, {
    ok: false,
    status: 403,
    code: 'DEMO_LOCKED',
    message: '"quit" is turned off on the demo site.',
    errors: ['"quit" is turned off on the demo site.'],
  })
  assert.equal(wrote.length, 0)
  // The hook is handed the step's checked params.
  assert.deepEqual(asked, [{ command: 'quit' }])
})

test('on the demo a command the hook allows saves', async (t) => {
  process.env.DEMO_MODE = 'true'
  register()
  const wrote = stubTable(t)
  assert.equal((await definitions.create(input('say hi'), 1, { role: 'admin' })).ok, true)
  assert.equal((await definitions.save(7, input('say hi'), 1, { role: 'admin' })).ok, true)
  assert.equal(wrote.length, 2)
})

test('on the demo a save and a publish are refused too', async (t) => {
  process.env.DEMO_MODE = 'true'
  register()
  const wrote = stubTable(t, { id: 7, state: 'draft', title: 'Console night', spec: input('quit').spec })
  const saved = await definitions.save(7, input('quit'), 1, { role: 'admin' })
  assert.equal(saved.status, 403)
  assert.equal(saved.code, 'DEMO_LOCKED')
  // A draft written before the list grew: publish asks again.
  const published = await definitions.publish(7, 1)
  assert.equal(published.status, 403)
  assert.equal(published.code, 'DEMO_LOCKED')
  assert.equal(wrote.length, 0)
})

test('a hook that throws refuses with core\'s sentence (fails closed)', async (t) => {
  process.env.DEMO_MODE = 'true'
  register({ demoRefuses: () => { throw new Error('boom') } })
  stubTable(t)
  const made = await definitions.create(input('say hi'), 1, { role: 'admin' })
  assert.equal(made.status, 403)
  assert.equal(made.code, 'DEMO_LOCKED')
  assert.match(made.message, /"Run console commands" could not be checked/)
})

test('the controller answers the refusal with code and message, so the toast fires', async (t) => {
  process.env.DEMO_MODE = 'true'
  register()
  stubTable(t)
  let status
  let body
  const res = {
    status(s) { status = s; return this },
    json(b) { body = b; return this },
  }
  await controller.create({ body: input('quit'), user: { id: 1, role: 'admin' } }, res)
  assert.equal(status, 403)
  assert.deepEqual(body, {
    errors: ['"quit" is turned off on the demo site.'],
    code: 'DEMO_LOCKED',
    message: '"quit" is turned off on the demo site.',
  })
})