#!/usr/bin/env node

'use strict'

const path = require('path')
const dotenv = require('dotenv')

dotenv.load()

const lambda = require(path.join(__dirname, '..', 'lib', 'main.js'))
const program = require('commander')
const fs = require('fs')
const packageJson = fs.existsSync(path.join(process.cwd(), 'package.json'))
  ? require(path.join(process.cwd(), 'package.json')) : {}
const packageJsonName = packageJson.name || 'UnnamedFunction'

const AWS_ENVIRONMENT = process.env.AWS_ENVIRONMENT || ''
const AWS_ENDPOINT = process.env.AWS_ENDPOINT || ''
const CONFIG_FILE = process.env.CONFIG_FILE || ''
const EVENT_SOURCE_FILE = process.env.EVENT_SOURCE_FILE || ''
const EXCLUDE_GLOBS = process.env.EXCLUDE_GLOBS || ''
const AWS_ACCESS_KEY_ID = process.env.AWS_ACCESS_KEY_ID
const AWS_SECRET_ACCESS_KEY = process.env.AWS_SECRET_ACCESS_KEY
const AWS_PROFILE = process.env.AWS_PROFILE || ''
const AWS_SESSION_TOKEN = process.env.AWS_SESSION_TOKEN || ''
const AWS_REGION = process.env.AWS_REGION || 'us-east-1,us-west-2,eu-west-1'
const AWS_FUNCTION_NAME = process.env.AWS_FUNCTION_NAME || packageJsonName
const AWS_HANDLER = process.env.AWS_HANDLER || 'index.handler'
const AWS_ROLE = process.env.AWS_ROLE_ARN || process.env.AWS_ROLE || 'missing'
const AWS_MEMORY_SIZE = process.env.AWS_MEMORY_SIZE || 128
const AWS_TIMEOUT = process.env.AWS_TIMEOUT || 60
const AWS_RUN_TIMEOUT = process.env.AWS_RUN_TIMEOUT || 3
const AWS_DESCRIPTION = process.env.AWS_DESCRIPTION || packageJson.description || ''
const AWS_RUNTIME = process.env.AWS_RUNTIME || 'nodejs8.10'
const AWS_PUBLISH = process.env.AWS_PUBLISH || false
const AWS_FUNCTION_VERSION = process.env.AWS_FUNCTION_VERSION || ''
const AWS_VPC_SUBNETS = process.env.AWS_VPC_SUBNETS || ''
const AWS_VPC_SECURITY_GROUPS = process.env.AWS_VPC_SECURITY_GROUPS || ''
const AWS_TRACING_CONFIG = process.env.AWS_TRACING_CONFIG || ''
const AWS_LOGS_RETENTION_IN_DAYS = process.env.AWS_LOGS_RETENTION_IN_DAYS || ''
const EVENT_FILE = process.env.EVENT_FILE || 'event.json'
const PACKAGE_DIRECTORY = process.env.PACKAGE_DIRECTORY
const CONTEXT_FILE = process.env.CONTEXT_FILE || 'context.json'
const PREBUILT_DIRECTORY = process.env.PREBUILT_DIRECTORY || ''
const SRC_DIRECTORY = process.env.SRC_DIRECTORY || ''
const DEPLOY_TIMEOUT = process.env.DEPLOY_TIMEOUT || 120000
const DOCKER_IMAGE = process.env.DOCKER_IMAGE || ''
const DEPLOY_ZIPFILE = process.env.DEPLOY_ZIPFILE || ''
const DEPLOY_USE_S3 = process.env.DEPLOY_USE_S3 || false
const AWS_KMS_KEY_ARN = process.env.AWS_KMS_KEY_ARN || ''
const AWS_DLQ_TARGET_ARN = (() => {
  // You can clear the setting by passing an empty string
  // when executing updateFunctionConfiguration
  if (process.env.AWS_DLQ_TARGET_ARN !== undefined) {
    return process.env.AWS_DLQ_TARGET_ARN
  }
  return undefined
})()
const PROXY = process.env.PROXY || process.env.http_proxy || ''
const ENABLE_RUN_MULTIPLE_EVENTS = true

program
  .command('deploy')
  .description('Deploy your application to Amazon Lambda')
  .option('-e, --environment [AWS_ENVIRONMENT]', 'Choose environment {dev, staging, production}',
    AWS_ENVIRONMENT)
  .option('-E, --endpoint [AWS_ENDPOINT]', 'Choose endpoint (e.g. localstack, "http://127.0.0.1:4574")',
    AWS_ENDPOINT)
  .option('-a, --accessKey [AWS_ACCESS_KEY_ID]', 'AWS Access Key', AWS_ACCESS_KEY_ID)
  .option('-s, --secretKey [AWS_SECRET_ACCESS_KEY]', 'AWS Secret Key', AWS_SECRET_ACCESS_KEY)
  .option('-P, --profile [AWS_PROFILE]', 'AWS Profile', AWS_PROFILE)
  .option('-k, --sessionToken [AWS_SESSION_TOKEN]', 'AWS Session Token', AWS_SESSION_TOKEN)
  .option('-r, --region [AWS_REGION]', 'AWS Region', AWS_REGION)
  .option('-n, --functionName [AWS_FUNCTION_NAME]', 'Lambda FunctionName', AWS_FUNCTION_NAME)
  .option('-H, --handler [AWS_HANDLER]', 'Lambda Handler {index.handler}', AWS_HANDLER)
  .option('-o, --role [AWS_ROLE]', 'Amazon Role ARN', AWS_ROLE)
  .option('-m, --memorySize [AWS_MEMORY_SIZE]', 'Lambda Memory Size', AWS_MEMORY_SIZE)
  .option('-t, --timeout [AWS_TIMEOUT]', 'Lambda Timeout', AWS_TIMEOUT)
  .option('-d, --description [AWS_DESCRIPTION]', 'Lambda Description', AWS_DESCRIPTION)
  .option('-u, --runtime [AWS_RUNTIME]', 'Lambda Runtime', AWS_RUNTIME)
  .option('-p, --publish [AWS_PUBLISH]', 'Lambda Publish', AWS_PUBLISH)
  .option('-L, --lambdaVersion [AWS_FUNCTION_VERSION]', 'Lambda Function Version', AWS_FUNCTION_VERSION)
  .option('-b, --vpcSubnets [AWS_VPC_SUBNETS]', 'Lambda Function VPC Subnets', AWS_VPC_SUBNETS)
  .option('-g, --vpcSecurityGroups [AWS_VPC_SECURITY_GROUPS]', 'Lambda VPC Security Group',
    AWS_VPC_SECURITY_GROUPS)
  .option('-K, --kmsKeyArn [AWS_KMS_KEY_ARN]', 'Lambda KMS Key ARN', AWS_KMS_KEY_ARN)
  .option('-Q, --deadLetterConfigTargetArn [AWS_DLQ_TARGET_ARN]', 'Lambda DLQ resource',
    AWS_DLQ_TARGET_ARN)
  .option('-c, --tracingConfig [AWS_TRACING_CONFIG]', 'Lambda tracing settings',
    AWS_TRACING_CONFIG)
  .option('-R, --retentionInDays [AWS_LOGS_RETENTION_IN_DAYS]', 'CloudWatchLogs retentionInDays settings',
    AWS_LOGS_RETENTION_IN_DAYS)
  .option('-A, --packageDirectory [PACKAGE_DIRECTORY]', 'Local Package Directory', PACKAGE_DIRECTORY)
  .option('-G, --sourceDirectory [SRC_DIRECTORY]', 'Path to lambda source Directory (e.g. "./some-lambda")', SRC_DIRECTORY)
  .option('-I, --dockerImage [DOCKER_IMAGE]', 'Docker image for npm install', DOCKER_IMAGE)
  .option('-f, --configFile [CONFIG_FILE]',
    'Path to file holding secret environment variables (e.g. "deploy.env")', CONFIG_FILE)
  .option('-S, --eventSourceFile [EVENT_SOURCE_FILE]',
    'Path to file holding event source mapping variables (e.g. "event_sources.json")', EVENT_SOURCE_FILE)
  .option('-x, --excludeGlobs [EXCLUDE_GLOBS]',
    'Space-separated glob pattern(s) for additional exclude files (e.g. "event.json dotenv.sample")', EXCLUDE_GLOBS)
  .option('-D, --prebuiltDirectory [PREBUILT_DIRECTORY]', 'Prebuilt directory', PREBUILT_DIRECTORY)
  .option('-T, --deployTimeout [DEPLOY_TIMEOUT]', 'Deploy Timeout', DEPLOY_TIMEOUT)
  .option('-z, --deployZipfile [DEPLOY_ZIPFILE]', 'Deploy zipfile', DEPLOY_ZIPFILE)
  .option('-B, --deployUseS3 [DEPLOY_USE_S3]', 'Use S3 to deploy.', DEPLOY_USE_S3)
  .option('-y, --proxy [PROXY]', 'Proxy server', PROXY)
  .action((prg) => lambda.deploy(prg))

program
  .command('package')
  .alias('zip')
  .description('Create zipped package for Amazon Lambda deployment')
  .option('-A, --packageDirectory [PACKAGE_DIRECTORY]', 'Local Package Directory', PACKAGE_DIRECTORY)
  .option('-I, --dockerImage [DOCKER_IMAGE]', 'Docker image for npm install', DOCKER_IMAGE)
  .option('-n, --functionName [AWS_FUNCTION_NAME]', 'Lambda FunctionName', AWS_FUNCTION_NAME)
  .option('-H, --handler [AWS_HANDLER]', 'Lambda Handler {index.handler}', AWS_HANDLER)
  .option('-e, --environment [AWS_ENVIRONMENT]', 'Choose environment {dev, staging, production}',
    AWS_ENVIRONMENT)
  .option('-x, --excludeGlobs [EXCLUDE_GLOBS]',
    'Space-separated glob pattern(s) for additional exclude files (e.g. "event.json dotenv.sample")', EXCLUDE_GLOBS)
  .option('-D, --prebuiltDirectory [PREBUILT_DIRECTORY]', 'Prebuilt directory', PREBUILT_DIRECTORY)
  .action((prg) => lambda.package(prg))

program
  .command('run')
  .alias('execute')
  .description('Run your Amazon Lambda application locally')
  .option('-H, --handler [AWS_HANDLER]', 'Lambda Handler {index.handler}', AWS_HANDLER)
  .option('-j, --eventFile [EVENT_FILE]', 'Event JSON File', EVENT_FILE)
  .option('-u, --runtime [AWS_RUNTIME]', 'Lambda Runtime', AWS_RUNTIME)
  .option('-t, --timeout [AWS_RUN_TIMEOUT]', 'Lambda Timeout', AWS_RUN_TIMEOUT)
  .option('-f, --configFile [CONFIG_FILE]',
    'Path to file holding secret environment variables (e.g. "deploy.env")', CONFIG_FILE)
  .option('-x, --contextFile [CONTEXT_FILE]', 'Context JSON File', CONTEXT_FILE)
  .option('-M, --enableRunMultipleEvents [ENABLE_RUN_MULTIPLE_EVENTS]', 'Enable run multiple events',
    ENABLE_RUN_MULTIPLE_EVENTS)
  .option('-y, --proxy [PROXY]', 'Proxy server', PROXY)
  .action((prg) => lambda.run(prg))

program
  .command('setup')
  .description('Sets up the .env file.')
  .option('-j, --eventFile [EVENT_FILE]', 'Event JSON File', EVENT_FILE)
  .option('-x, --contextFile [CONTEXT_FILE]', 'Context JSON File', CONTEXT_FILE)
  .action((prg) => lambda.setup(prg))

program
  .version(lambda.version)
  .parse(process.argv)

if (!process.argv.slice(2).length) {
  program.outputHelp()
}