# frozen_string_literal: true
require 'json'

class JsonFileResolver
  def initialize(path)
    @path = path
    begin
      file = File.read(@path)
      @json_object = JSON.parse(file)
    rescue Errno::ENOENT
      raise "Configuration file #{@path} not found. Please check your configuration file."
    end
  end

  def get_license_key
    @json_object["licenseKey"] || (raise "License key not found in configuration file. Please check your configuration file.")
  end

  def get_runtimes
    @json_object["runtimes"]
  end

  def get_runtime(runtime_name, config_name)
    runtimes = get_runtimes
    if runtimes.key?(runtime_name)
      runtime = runtimes[runtime_name]
      if runtime.is_a?(Array)
        return runtime.find { |item| item["name"] == config_name }
      elsif runtime["name"] == config_name
        return runtime
      end
    end
    raise "Runtime config #{config_name} not found in configuration file for runtime #{runtime_name}. Please check your configuration file."
  end

  def get_channel(runtime_name, config_name)
    runtime = get_runtime(runtime_name, config_name)
    runtime["channel"] || (raise "Channel key not found in configuration file for config #{config_name}. Please check your configuration file.")
  end

  def get_channel_type(runtime_name, config_name)
    channel = get_channel(runtime_name, config_name)
    channel["type"] || (raise "Channel type not found in configuration file for config #{config_name}. Please check your configuration file.")
  end

  def get_channel_host(runtime_name, config_name)
    channel = get_channel(runtime_name, config_name)
    channel["host"] || (raise "Channel host not found in configuration file for config #{config_name}. Please check your configuration file.")
  end

  def get_channel_port(runtime_name, config_name)
    channel = get_channel(runtime_name, config_name)
    channel["port"] || (raise "Channel port not found in configuration file for config #{config_name}. Please check your configuration file.")
  end

  def get_modules(runtime_name, config_name)
    runtime = get_runtime(runtime_name, config_name)
    if runtime.key?('modules')
      return runtime['modules']
    end
    ""
  end
end