import { Client } from '@botpress/client'
import fs from 'fs/promises'
import pathlib from 'path'
import * as uuid from 'uuid'
import impl from '../../src'
import { ApiBot, ApiIntegration, ApiInterface, ApiPlugin } from '../api'
import defaults from '../defaults'
import * as retry from '../retry'
import { Test } from '../typings'
import * as utils from '../utils'

type ARGV = typeof defaults & {
  botpressHome: string
  confirm: true
  workspaceId: string
  workspaceHandle: string
  token: string
  apiUrl: string
  tunnelUrl: string
  sdkPath?: string
  clientPath?: string
}

export const createDeployBotWithDependencies: Test = {
  name: 'cli should allow creating, building, deploying and managing a bot that has nested dependencies',
  handler: async ({ tmpDir, dependencies, logger, ...creds }) => {
    if (!_isBotpressWorkspace(creds.workspaceHandle, creds.workspaceId)) {
      // Unfortunately, only the botpress workspace can deploy interfaces
      logger.info(
        `Skipping test because the workspace is not a Botpress workspace (workspaceHandle: ${creds.workspaceHandle}, workspaceId: ${creds.workspaceId})`
      )
      return
    }

    const botpressHomeDir = pathlib.join(tmpDir, '.botpresshome')
    const fixturesDir = pathlib.join(process.cwd(), 'e2e', 'fixtures')
    const interfaceDir = pathlib.join(tmpDir, 'interfaces', 'interface-with-entities')
    const integrationDir = pathlib.join(tmpDir, 'integrations', 'integration-with-entity-dependency')
    const pluginDir = pathlib.join(tmpDir, 'plugins', 'plugin-with-interface-dependency')
    const botDir = pathlib.join(tmpDir, 'bots', 'bot-with-plugin-dependency')

    // copy all subfolders from fixturesDir to tmpDir:
    await fs.cp(fixturesDir, tmpDir, { recursive: true, force: true })

    const argv = {
      ...defaults,
      botpressHome: botpressHomeDir,
      confirm: true,
      ...creds,
    } satisfies ARGV

    const client = new Client({
      apiUrl: creds.apiUrl,
      token: creds.token,
      workspaceId: creds.workspaceId,
      retry: retry.config,
    })
    await impl.login({ ...argv }).then(utils.handleExitCode)

    // Generate names:
    const interfaceName = _generateInterfaceName()
    const integrationName = _generateIntegrationName()
    const pluginName = _generatePluginName()
    const botName = _generateBotName()

    // Deploy dependencies:
    await using _iface = await _deployInterface({ argv, client, dependencies, workDir: interfaceDir, interfaceName })
    await using _integration = await _deployIntegration({
      argv,
      client,
      dependencies,
      workDir: integrationDir,
      integrationName,
    })
    await using _plugin = await _deployPlugin({ argv, client, dependencies, workDir: pluginDir, pluginName })

    // Deploy bot:
    await using bot = await _deployBot({ argv, client, dependencies, workDir: botDir, botName })

    // Fetch and verify the deployed bot:
    const deployedBot = await client.getBot({ id: bot.botId }).then((res) => res.bot)

    // TODO: use vitest for our e2e tests and replace this series of if/else
    //       checks with an expect().toMatchObject() assertion.

    // Check that the plugin is installed and enabled:
    if (!deployedBot.plugins?.['plugin-alias']?.enabled) {
      throw new Error('Expected bot to have plugin "plugin-alias"')
    }

    // Check that the schemas have been merged correctly:
    const action = deployedBot.actions?.['plugin-alias#doSomething']
    if (!action?.input?.schema?.properties) {
      throw new Error('Expected bot to have action "plugin-alias#doSomething"')
    }

    const itemEntityProperties = Object.keys(action.input.schema.properties.item.properties)
    // Property defined by the interface:
    if (!itemEntityProperties.includes('name')) {
      throw new Error('Expected "plugin-alias#doSomething" action input to have item.name property')
    }
    // Property defined by the integration:
    if (!itemEntityProperties.includes('color')) {
      throw new Error('Expected "plugin-alias#doSomething" action input to have item.color property')
    }
  },
}

const _isBotpressWorkspace = (workspaceHandle: string, workspaceId: string): boolean =>
  workspaceHandle === 'botpress' ||
  [
    '6a76fa10-e150-4ff6-8f59-a300feec06c1',
    '95de33eb-1551-4af9-9088-e5dcb02efd09',
    '11111111-1111-1111-aaaa-111111111111',
  ].includes(workspaceId)

const _deployInterface = async ({
  argv,
  client,
  workDir,
  interfaceName,
  dependencies,
}: {
  argv: ARGV
  client: Client
  workDir: string
  interfaceName: string
  dependencies: Record<string, string | undefined>
}) => {
  await _editPackageJson({ workDir, interfaceName })
  await _installAndBuild({ argv, workDir, dependencies })

  await impl
    .deploy({ ...argv, workDir, createNewBot: undefined, botId: undefined, visibility: 'public' })
    .then(utils.handleExitCode)

  return {
    [Symbol.asyncDispose]: () => _deleteInterfaceIfExists(client, interfaceName),
  }
}

const _deployIntegration = async ({
  argv,
  client,
  workDir,
  integrationName,
  dependencies,
}: {
  argv: ARGV
  client: Client
  workDir: string
  integrationName: string
  dependencies: Record<string, string | undefined>
}) => {
  await _editPackageJson({ workDir, integrationName })
  await _installAndBuild({ argv, workDir, dependencies })

  await impl.deploy({ ...argv, workDir, createNewBot: undefined, botId: undefined }).then(utils.handleExitCode)

  return {
    [Symbol.asyncDispose]: () => _deleteIntegrationIfExists(client, integrationName),
  }
}

const _deployPlugin = async ({
  argv,
  client,
  workDir,
  pluginName,
  dependencies,
}: {
  argv: ARGV
  client: Client
  workDir: string
  pluginName: string
  dependencies: Record<string, string | undefined>
}) => {
  await _editPackageJson({ workDir, pluginName })
  await _installAndBuild({ argv, workDir, dependencies })
  await impl.deploy({ ...argv, workDir, createNewBot: undefined, botId: undefined }).then(utils.handleExitCode)

  return {
    [Symbol.asyncDispose]: () => _deletePluginIfExists(client, pluginName),
  }
}

const _deployBot = async ({
  argv,
  client,
  workDir,
  botName,
  dependencies,
}: {
  argv: ARGV
  client: Client
  workDir: string
  botName: string
  dependencies: Record<string, string | undefined>
}) => {
  await _editPackageJson({ workDir, botName })
  await _installAndBuild({ argv, workDir, dependencies })
  await impl.bots.create({ ...argv, name: botName, ifNotExists: false }).then(utils.handleExitCode)

  const bot = await _fetchBotByName(client, botName)
  if (!bot) {
    throw new Error(`Bot ${botName} should have been created`)
  }

  await impl.deploy({ ...argv, workDir, createNewBot: false, botId: bot.id }).then(utils.handleExitCode)

  return {
    botId: bot.id,
    [Symbol.asyncDispose]: () => _deleteBotIfExists(client, botName),
  }
}

const _installAndBuild = async ({
  argv,
  workDir,
  dependencies,
}: {
  argv: ARGV
  workDir: string
  dependencies: Record<string, string | undefined>
}) => {
  await utils.fixBotpressDependencies({ workDir, target: dependencies })
  await utils.npmInstall({ workDir }).then(utils.handleExitCode)

  const prevDir = process.cwd()
  process.chdir(workDir)
  await impl
    .add({
      ...argv,
      installPath: workDir,
      packageRef: undefined,
      useDev: false,
      alias: undefined,
    })
    .then(utils.handleExitCode)
  process.chdir(prevDir)

  await impl.build({ ...argv, workDir }).then(utils.handleExitCode)
}

const _fetchBotByName = (client: Client, botName: string): Promise<ApiBot | undefined> =>
  client.list
    .bots({})
    .collect()
    .then((bots) => bots.find(({ name }) => name === botName))

const _fetchIntegrationByName = (client: Client, integrationName: string): Promise<ApiIntegration | undefined> =>
  client.list
    .integrations({})
    .collect()
    .then((integrations) => integrations.find(({ name }) => name === integrationName))

const _fetchInterfaceByName = (client: Client, interfaceName: string): Promise<ApiInterface | undefined> =>
  client.list
    .publicInterfaces({})
    .collect()
    .then((interfaces) => interfaces.find(({ name }) => name === interfaceName))

const _fetchPluginByName = (client: Client, pluginName: string): Promise<ApiPlugin | undefined> =>
  client.list
    .plugins({})
    .collect()
    .then((plugins) => plugins.find(({ name }) => name === pluginName))

const _editPackageJson = async (payload: { workDir: string; [k: string]: string }) => {
  const { workDir, ...modifications } = payload
  const packageJsonPath = pathlib.join(workDir, 'package.json')
  const originalPackageJson: Record<string, unknown> = JSON.parse(await fs.readFile(packageJsonPath, 'utf-8'))

  const newPackageJson = {
    ...originalPackageJson,
    ...modifications,
  }

  await fs.writeFile(packageJsonPath, JSON.stringify(newPackageJson, null, 2))
}

const _generateInterfaceName = () => `iface-${uuid.v4()}` as const
const _generateIntegrationName = () => `integration-${uuid.v4()}` as const
const _generatePluginName = () => `plugin-${uuid.v4()}` as const
const _generateBotName = () => `bot-${uuid.v4()}` as const

const _deleteBotIfExists = async (client: Client, botName: string): Promise<void> => {
  console.debug(`Deleting bot: ${botName}`)
  const bot = await _fetchBotByName(client, botName)
  if (!bot) {
    return
  }
  await _swallowErrors(client.deleteBot({ id: bot.id })).then(() => utils.sleep(10_000))
}

const _deleteIntegrationIfExists = async (client: Client, integrationName: string): Promise<void> => {
  console.debug(`Deleting integration: ${integrationName}`)
  const integration = await _fetchIntegrationByName(client, integrationName)
  if (!integration) {
    return
  }
  await _swallowErrors(client.deleteIntegration({ id: integration.id }))
}

const _deleteInterfaceIfExists = async (client: Client, interfaceName: string): Promise<void> => {
  console.debug(`Deleting interface: ${interfaceName}`)
  const iface = await _fetchInterfaceByName(client, interfaceName)
  if (!iface) {
    return
  }
  await _swallowErrors(client.deleteInterface({ id: iface.id }))
}

const _deletePluginIfExists = async (client: Client, pluginName: string): Promise<void> => {
  console.debug(`Deleting plugin: ${pluginName}`)
  const plugin = await _fetchPluginByName(client, pluginName)
  if (!plugin) {
    return
  }
  await _swallowErrors(client.deletePlugin({ id: plugin.id }))
}

const _swallowErrors = async (promise: Promise<unknown>) => {
  try {
    await promise
  } catch (thrown: unknown) {
    // Swallow errors to allow cleanup to proceed:
    console.warn('Error during cleanup:', thrown)
  }
}