$:.push File.expand_path(File.dirname(__FILE__))

require 'rubygems'
require 'rainbow'
require 'gli'
require 'gli_version'
require 'bozo/bozo'
require 'bozo/runner'
require 'bozo/executor'
require 'bozo/bozo_configuration'
require 'bozo/configuration_error'
require 'bozo/execution_error'

include GLI

# Set the location of the bozo runtime configuration file
config_file '.bozorc'

version Bozo::VERSION

desc 'Run as a build server, allows more destructive actions'
switch 'build-server'

default_config_file = 'bozorc.rb'

desc "The build configuration file (defaults to #{default_config_file})"
default_value default_config_file
arg_name 'path'
flag 'config-file'

default_environment = 'development'

desc "The build environment (defaults to #{default_environment})"
default_value default_environment
arg_name 'name'
flag :environment

pre do |global_options, command, options, arguments|
  # Dump a view of the provided options.
  puts '## GLOBAL OPTIONS ##'.color(:cyan).bright
  puts global_options
  puts ''

  unless command.nil?
    puts '## COMMAND ##'.color(:cyan).bright
    puts command.names
    puts ''
  end

  puts '## OPTIONS ##'.color(:cyan).bright
  puts options
  puts ''

  unless arguments.empty?
    puts '## ARGUMENTS ##'.color(:cyan).bright
    puts arguments
    puts ''
  end

  # Load the configuration file.
  config = Bozo::BozoConfiguration.new
  config.load global_options[:'config-file']

  puts "Building #{config.version} using Bozo #{Bozo::VERSION}"
  puts ''
  
  # Initialize the executor.
  @executor = Bozo::Executor.new config, global_options

  true
end

# Helper method for defining a command that invokes a bozo task.
# 
# The first provided name will be passed on to bozo.
# 
# Takes an optional block for defining command-specific flags and switches.
# 
# @param [Symbol] command_names
#     The names to give the command.
def bozo_command(*command_names)
  command_name = command_names.first
  command command_names do |c|
    yield c if block_given?
    c.action do |global_options, options, arguments|
      @executor.execute command_name, options, ENV.to_hash
    end
  end
end

desc 'Remove bozo and all its artifacts'
bozo_command :uninstall

desc 'Remove all build artifacts'
bozo_command :clean

desc 'Retrieve all project dependencies'
bozo_command :dependencies

desc 'Compile the project'
bozo_command :compile, :c

desc 'Run the tests for the project'
bozo_command :test, :t

desc 'Create a package'
bozo_command :package, :p

desc 'Publish a package'
bozo_command :publish

on_error do |exception|  
  puts exception.inspect.color(:red).bright
  
  if exception.kind_of? Bozo::ExecutionError or exception.kind_of? Bozo::ConfigurationError
    false
  else
    puts ''
    puts exception.backtrace.join("\n").color(:red)
    true
  end
end