# frozen_string_literal: true

# Released under the MIT License.
# Copyright, 2019-2024, by Samuel Williams.
# Copyright, 2021, by Bryan Powell.
# Copyright, 2021, by Robert Schulze.

require_relative "output"
require_relative "output/failure"

require_relative "filter"
require_relative "event"
require_relative "resolver"
require_relative "progress"

require "fiber/local"

module Console
	class Logger < Filter[debug: 0, info: 1, warn: 2, error: 3, fatal: 4]
		extend Fiber::Local
		
		# Set the default log level based on `$DEBUG` and `$VERBOSE`.
		# You can also specify CONSOLE_LEVEL=debug or CONSOLE_LEVEL=info in environment.
		# https://mislav.net/2011/06/ruby-verbose-mode/ has more details about how it all fits together.
		def self.default_log_level(env = ENV)
			if level = env["CONSOLE_LEVEL"]
				LEVELS[level.to_sym] || level.to_i
			elsif $DEBUG
				DEBUG
			elsif $VERBOSE.nil?
				WARN
			else
				INFO
			end
		end
		
		# Controls verbose output using `$VERBOSE`.
		def self.verbose?(env = ENV)
			!$VERBOSE.nil? || env["CONSOLE_VERBOSE"]
		end
		
		def self.default_logger(output = $stderr, env = ENV, **options)
			if options[:verbose].nil?
				options[:verbose] = self.verbose?(env)
			end
			
			if options[:level].nil?
				options[:level] = self.default_log_level(env)
			end
			
			output = Output.new(output, env, **options)
			
			logger = self.new(output, **options)
			
			Resolver.default_resolver(logger)
			
			return logger
		end
		
		def self.local
			self.default_logger
		end
		
		DEFAULT_LEVEL = 1
		
		def initialize(output, **options)
			# This is the expected default behaviour, but it may be nice to have a way to override it.
			output = Output::Failure.new(output, **options)
			
			super(output, **options)
		end
		
		def progress(subject, total, **options)
			options[:severity] ||= :info
			
			Progress.new(subject, total, **options)
		end
	end
end