module Jets::Application::Defaults

def self.default_iam_policy
  project_namespace = Jets.project_namespace
  logs = {
    action: ["logs:*"],
    effect: "Allow",
    resource: "arn:aws:logs:#{Jets.aws.region}:#{Jets.aws.account}:log-group:/aws/lambda/#{project_namespace}-*",
  }
  s3_readonly = {
    action: ["s3:Get*", "s3:List*", "s3:HeadBucket"],
    effect: "Allow",
    resource: "arn:aws:s3:::#{Jets.aws.s3_bucket}*",
  }
  policies = [logs, s3_readonly]
  cloudformation = {
    action: ["cloudformation:DescribeStacks", "cloudformation:DescribeStackResources"],
    effect: "Allow",
    resource: "arn:aws:cloudformation:#{Jets.aws.region}:#{Jets.aws.account}:stack/#{project_namespace}*",
  }
  policies << cloudformation
  if Jets.config.function.vpc_config
    vpc = {
      action: %w[
        ec2:CreateNetworkInterface
        ec2:DeleteNetworkInterface
        ec2:DescribeNetworkInterfaces
        ec2:DescribeVpcs
        ec2:DescribeSubnets
        ec2:DescribeSecurityGroups
      ],
      effect: "Allow",
      resource: "*",
    }
    policies << vpc
  end
  policies
end

def default_autoload_paths
  paths = []
  each_app_autoload_path("#{Jets.root}/app/*") do |path|
    paths << path
  end
  # Handle concerns folders
  each_app_autoload_path("#{Jets.root}/app/**/concerns") do |path|
    paths << path
  end
  paths << "#{Jets.root}/app/shared/resources"
  paths << "#{Jets.root}/app/shared/extensions"
  paths
end

def default_config
  config = ActiveSupport::OrderedOptions.new
  config.project_name = parse_project_name # must set early because other configs requires this
  config.cors = false
  config.autoload_paths = [] # allows for customization
  config.ignore_paths = [] # allows for customization
  config.logger = Jets::Logger.new($stderr)
  config.time_zone = "UTC"
  # function properties defaults
  config.function = ActiveSupport::OrderedOptions.new
  config.function.timeout = 30
  # default memory setting based on:
  # https://medium.com/epsagon/how-to-make-lambda-faster-memory-performance-benchmark-be6ebc41f0fc
  config.function.memory_size = 1536
  config.prewarm = ActiveSupport::OrderedOptions.new
  config.prewarm.enable = true
  config.prewarm.rate = '30 minutes'
  config.prewarm.concurrency = 2
  config.prewarm.public_ratio = 3
  config.prewarm.rack_ratio = 5
  config.gems = ActiveSupport::OrderedOptions.new
  config.gems.clean = false
  config.gems.disable = false
  config.gems.source = "https://api.serverlessgems.com/api/v1"
  config.inflections = ActiveSupport::OrderedOptions.new
  config.inflections.irregular = {}
  config.assets = ActiveSupport::OrderedOptions.new
  config.assets.folders = %w[assets images packs]
  config.assets.base_url = nil # IE: https://cloudfront.com/my/base/path
  config.assets.max_age = 3600
  config.assets.cache_control = nil # IE: public, max-age=3600 , max_age is a shorter way to set cache_control.
  config.ruby = ActiveSupport::OrderedOptions.new
  config.middleware = Jets::Middleware::Configurator.new
  config.session = ActiveSupport::OrderedOptions.new
  config.session.store = Rack::Session::Cookie # note when accessing it use session[:store] since .store is an OrderedOptions method
  config.session.options = {}
  config.api = ActiveSupport::OrderedOptions.new
  config.api.api_key_required = false # Turn off API key required
  config.api.authorization_type = "NONE"
  config.api.auto_replace = nil # https://github.com/boltops-tools/jets/issues/391
  config.api.binary_media_types = ['multipart/form-data']
  config.api.cors_authorization_type = nil # nil so ApiGateway::Cors#cors_authorization_type handles
  config.api.endpoint_policy = nil # required when endpoint_type is EDGE
  config.api.endpoint_type = 'EDGE' # PRIVATE, EDGE, REGIONAL
  config.api.authorizers = ActiveSupport::OrderedOptions.new
  config.api.authorizers.default_token_source = "Auth" # method.request.header.Auth
  config.domain = ActiveSupport::OrderedOptions.new
  # config.domain.name = "#{Jets.project_namespace}.coolapp.com" # Default is nil
  # config.domain.cert_arn = "..."
  config.domain.endpoint_type = "REGIONAL" # EDGE or REGIONAL. Default to EDGE because CloudFormation update is faster
  config.domain.route53 = true # controls whether or not to create the managed route53 record.
    # Useful to disable this when user wants to manage the route themself like pointing
    # it to CloudFront for blue-green deployments instead.
  # Custom user lambda layers
  config.lambda = ActiveSupport::OrderedOptions.new
  config.lambda.layers = []
  # Only used for Jets Afterburner, Mega Mode currently. This is a fallback default
  # encoding.  Usually, the Rails response will return a content-type header and
  # the encoding in there is used when possible. Example Content-Type header:
  #   Content-Type    text/html; charset=utf-8
  config.encoding = ActiveSupport::OrderedOptions.new
  config.encoding.default = "utf-8"
  config.s3_event = ActiveSupport::OrderedOptions.new
  # These notification_configuration properties correspond to the ruby aws-sdk
  #   s3.put_bucket_notification_configuration
  # in jets/s3_bucket_config.rb, not the CloudFormation Bucket properties. The CloudFormation
  # bucket properties have a similiar structure but is slightly different so it can be confusing.
  #
  #   Ruby aws-sdk S3 Docs: https://amzn.to/2N7m5Lr
  config.s3_event.configure_bucket = true
  config.s3_event.notification_configuration = {
    topic_configurations: [
      {
        events: ["s3:ObjectCreated:*"],
        topic_arn: "!Ref SnsTopic", # must use this logical id
      },
    ],
  }
  # So tried to defined this in the jets/mailer.rb Turbine only but jets new requires it
  # config.action_mailer = ActiveSupport::OrderedOptions.new
  config.helpers = ActiveSupport::OrderedOptions.new
  config.helpers.host = nil # nil by default. Other examples: https://myurl.com:8888
  config.controllers = ActiveSupport::OrderedOptions.new
  config.controllers.default_protect_from_forgery = nil
  config.controllers.filtered_parameters = []
  config.app = ActiveSupport::OrderedOptions.new
  config.app.domain = nil
  config.deploy = ActiveSupport::OrderedOptions.new
  config.deploy.stagger = ActiveSupport::OrderedOptions.new
  config.deploy.stagger.enabled = false
  config.deploy.stagger.batch_size = 10
  config.hot_reload = Jets.env.development?
  config.ruby = ActiveSupport::OrderedOptions.new
  config.ruby.check = true
  config
end

def default_ignore_paths
  %w[
    app/functions
    app/shared/functions
  ]
end