# frozen_string_literal: true

# Requirements
# =======================================================================

# Stdlib
# -----------------------------------------------------------------------

# Deps
# -----------------------------------------------------------------------
require 'thor/completion/bash'

# Project / Package
# -----------------------------------------------------------------------


# Refinements
# =======================================================================

require 'nrser/refinements/types'
using NRSER::Types


# Namespace
# ========================================================================

module  Locd
module  CLI
module  Command


# Definitions
# =======================================================================

# CLI interface using the Thor via my `atli` fork.
# 
# @see http://whatisthor.com/
# 
class Main < Base
  
  # Constants
  # ============================================================================
  
  # Just the symbol log levels from {SemnaticLogger::LEVELS} converted to
  # frozen strings
  # 
  # @return [Array<String>]
  # 
  LOG_LEVEL_STRINGS = SemanticLogger::LEVELS.map { |sym| sym.to_s.freeze }
  

  include Thor::Completion::Bash

  
  # Global (Class-Level) Options
  # ============================================================================
  # 
  # Applicable to all commands.
  # 
  
  common_class_options :backtrace
  
  class_option :log_level,
    desc: "Set log level",
    type: :string,
    enum: LOG_LEVEL_STRINGS.
      zip( LOG_LEVEL_STRINGS.map { |level| level[0] } ).
      flatten,
    default: ENV['LOCD_LOG_LEVEL']
  
  
  class_option :debug,
    desc: "Set log level to debug",
    type: :boolean
    
    
  class_option :trace,
    desc: "Set log level to trace",
    type: :boolean
  
  
  class_option :verbose,
    desc: "Turn on DEBUG-level logging",
    aliases: '-v',
    type: :boolean
  
  
  class_option :json,
    desc: "Output in JSON format (to STDOUT)",
    type: :boolean
  
  
  class_option :yaml,
    desc: "Output in YAML format (to STDOUT)",
    type: :boolean
  
  
  # Construction
  # ============================================================================
  
  # Wrap {Thor#initialize} to call {#init_setup_logging} after letting `super`
  # do it's thing so logging is setup before we do anything else.
  # 
  def initialize args = [], local_options = {}, config = {}
    super args, local_options, config
    
    # If anything raises in here, the command seems to just silently exit..?
    begin
      init_setup_logging!
    rescue Exception => e
      $stderr.write \
        "ERROR: #{ e.message } #{ e.class }\n#{ e.backtrace.join( "\n" ) }\n"
    end
    
    logger.debug "initialized",
      args: args,
      local_options: local_options,
      options: self.options
    
  end
  
  
  # Helpers
  # ============================================================================
  # 
  protected
    
    # Setup logging using {#options}.
    # 
    def init_setup_logging!
      kwds = {}
      
      level = if options[:trace]
        :trace
      elsif options[:debug]
        :debug
      elsif options[:log_level]
        LOG_LEVEL_STRINGS.find_only { |level|
          level.start_with? options[:log_level]
        }.to_sym
      end
      
      NRSER::Log.level = level unless level.nil?
      
      if levels = Locd.config[:log, :levels]
        levels.each do |name, level|
          const = begin
            NRSER.to_const name
          rescue
            next
          end
          
          level = level.to_sym
          
          self.logger.debug "Setting logger level",
            logger: const.logger,
            level: level
          
          const.logger.level = level
          
          self.logger.debug "Logger level set",
            logger: const.logger
        end
      end
      
      if [:trace, :debug].include? NRSER::Log.level
        logger.send NRSER::Log.level, "Hello! We about to start the show..."
      end
    end
    
  # end protected
  public
  
  
  # Commands
  # ============================================================================
  
  # add_bash_completion_commands!

  # Querying
  # ----------------------------------------------------------------------------
  
  desc              "version",
                    "Print the version"
  def version
    respond Locd::VERSION
  end
  
  
  # System
  # ----------------------------------------------------------------------------
  
  
  desc              "config",
                    "Dump config"
  def config
    respond Locd.config.to_h
  end
  
  
  # Sub-Commands
  # ============================================================================
  
  subcommand  'agent',
              Locd::CLI::Command::Agent,
    desc:     'Deal with agents in general (all types).'
  
  
  subcommand  'site',
              Locd::CLI::Command::Site,
    desc:     'Deal with site agents.'
  
  
  subcommand  'job',
              Locd::CLI::Command::Job,
    desc:     "Deal with job agents."
  
  
  subcommand  'proxy',
              Locd::CLI::Command::Proxy,
    desc:     'Deal with the HTTP proxy that routes requests to servers'
                    

  # subcommand  'rotate-logs',
  subcommand  'rotate_logs',
              Locd::CLI::Command::RotateLogs,
    desc:     'Deal with the log rotation job'
  

  subcommand  'project',
              Locd::CLI::Command::Project,
    desc:     'Manage Agent definitions for projects'
  
end # class Main


# /Namespace
# ========================================================================

end # module Command
end # module CLI
end # module Locd