require 'yaml'

module Sct
  class DevCommand

    @@file = "docker-compose.dev.yml"

    def error message
      UI.error message
      exit 1
    end

    def dc command
      system "docker-compose -f ~/development/spend-cloud/docker-compose.yml #{command}"
    end

    def local_dc command
      system "docker-compose -f #{@@file} #{command}"
    end

    def manifest
      if !File.exist? @@file
        error "Could not find file '#{@@file}'."
      end

      YAML.load File.read @@file
    end

    def execute args, options
      services = manifest["services"].to_a

      if services.length != 1
        error "Currently sct only supports a single service declaration in '#{@@file}'. Contact the infra guild if you consider this a limitation."
      end

      service, service_spec = services.first

      container = service_spec["container_name"]
      command = service_spec["command"] || ""

      if options.pull
        return unless local_dc "pull"
      end

      if options.build
        return unless local_dc "build --build-arg PUID=$(id -u) --build-arg PGID=$(id -g) #{options.pull ? "--pull" : ""}"
      end

      if options.pull or options.build
        system "docker image prune -f"
      end

      return unless dc "rm --stop --force #{service}"

      local_dc "run --rm --service-ports --name #{container} #{service} #{command}"

      dc "up --detach #{service}"
    end

  end
end