class Fanforce::PluginFactory::CLI::Scripts
  include Fanforce::PluginFactory::CLI::Utils

  require_relative '../lib/git'
  require_relative '../lib/scaffolding'

  ######################################################################################################################

  def diff(type, detail_level=nil)
    type = type.to_sym
    detail_level = (detail_level||'detailed').to_sym if type == :files

    if [:all,:files].include?(type)
      if Fanforce::CLI::TYPE == :directory_of_plugins
        if detail_level == :detailed
          directory_file_details(detail_level)
        else
          directory_file_overview
        end
      elsif Fanforce::CLI::TYPE == :single_plugin
        plugin = Fanforce::CLI::Plugin.load(Fanforce::CLI::DIR)
        plugin_file_details(plugin, detail_level)
      end
    end

    if [:all,:git].include?(type)
      if Fanforce::CLI::TYPE == :directory_of_plugins
        git_overview
      elsif Fanforce::CLI::TYPE == :single_plugin
        git_details
      end
    end
  end

  def directory_file_overview
    log ''
    log sprintf('%-12s %-50s %85s', 'FILE STATUS', 'PLUGIN NAME', 'STATS OVERVIEW').format(:bold)
    log divider '======================================================================================================'
    Fanforce::CLI::Plugins.each do |plugin, current_count, total|
      missing = 0
      diverged = 0
      previous = 0
      corrupted = 0
      is_synced = true
      Fanforce::PluginFactory::CLI::Scaffolding.new(plugin).metadata.each do |filepath, change|
        if change[:status] == :missing
          is_synced = false
          next missing += 1
        elsif change[:status] == :diverged
          is_synced = false
          next diverged += 1
        elsif change[:status] == :previous
          is_synced = false
          next previous += 1
        elsif change[:status] == :corrupted
          is_synced = false
          next corrupted += 1
        end
      end
      changed_stats = [
          "#{missing} files missing",
          "#{previous} files previous",
          "#{diverged} files diverged",
          "#{corrupted} files corrupted"
      ]
      puts sprintf("%s%-12s#{fmt_end} %-41s %23s %23s %23s %23s",
              fmt_start(is_synced ? :green : :red),
              (is_synced ? 'Synced' : 'Changed'),
              plugin.name,
              *changed_stats
      )
      log divider '---------------------------------------------------------------------------------------------------+'
    end
    puts ''
  end

  def directory_file_details(detail_level)
    Fanforce::CLI::Plugins.each do |plugin, current_count, total|
      log divider '+==================================================================================================='
      has_files_to_update = false
      Fanforce::PluginFactory::CLI::Scaffolding.new(plugin).metadata.each do |filepath, metadata|
        next if ![:previous,:diverged,:missing,:corrupted].include?(metadata[:status])
        has_files_to_update = true
        filepath = filepath.gsub(Fanforce::CLI::DIR, '')
        log sprintf "%s%-8s#{fmt_end} %-95s %22s %22s\n",
                    fmt_start([:previous,:diverged,:missing,:corrupted].include?(metadata[:status]) ? :red : :green),
                    metadata[:status].to_s.titleize,
                    filepath,
                    ("#{metadata[:insertions]} insertions(+)" if metadata[:insertions].to_i > 0),
                    ("#{metadata[:deletions]} deletions(-)" if metadata[:insertions].to_i > 0)
        if detail_level == :detailed and metadata[:diff]
          lines = ''
          metadata[:diff].lines do |line|
            line = line.format(:red) if line[0] == '-'
            line = line.format(:green) if line[0] == '+'
            line = (' '*3) + line
            lines += line
          end
          log divider '   -----------------------------------------------------------------------------------------------'
          log '   THE FOLLOWING CHANGES WILL OCCUR DURING UPDATE:'
          log '   -----------------------------------------------'
          log "\n" + lines + "\n"
        end
        log divider '---------------------------------------------------------------------------------------------------+'
      end
      log 'NO FILES TO UPDATE' if !has_files_to_update
    end
  end

  def plugin_file_details(plugin, detail_level)
    log ''
    log sprintf "%-30s %119s\n", "FILES (#{plugin.dir_name})", 'changes needed during update'
    log divider '======================================================================================================'
    Fanforce::PluginFactory::CLI::Scaffolding.new(plugin).metadata.each do |filepath, metadata|
      filepath = filepath.gsub(Fanforce::CLI::DIR, '')
      log sprintf "%s%-8s#{fmt_end} %-95s %22s %22s\n",
                  fmt_start([:previous,:diverged,:missing,:corrupted].include?(metadata[:status]) ? :red : :green),
                  metadata[:status].to_s.titleize,
                  filepath,
                  ("#{metadata[:insertions]} insertions(+)" if metadata[:insertions].to_i > 0),
                  ("#{metadata[:deletions]} deletions(-)" if metadata[:insertions].to_i > 0)
      if detail_level == :detailed and metadata[:diff]
        lines = ''
        metadata[:diff].lines do |line|
          line = line.format(:red) if line[0] == '-'
          line = line.format(:green) if line[0] == '+'
          line = (' '*3) + line
          lines += line
        end
        log divider '   -----------------------------------------------------------------------------------------------'
        log '   THE FOLLOWING CHANGES WILL OCCUR DURING UPDATE:'
        log '   -----------------------------------------------'
        log "\n" + lines + "\n"
      end
      log divider '---------------------------------------------------------------------------------------------------+'
    end
    puts ''
  end

  def git_overview
    plugin_column_width = Fanforce::CLI::Plugins.dir_names.inject(0){|l,d| d.length>l ? d.length : l}
    log Fanforce::PluginFactory::CLI::Git.status_table_header(plugin_column_width)
    log divider '======================================================================================================'
    Fanforce::CLI::Plugins.each do |plugin, current_count, total|
      log Fanforce::PluginFactory::CLI::Git.new(plugin).status_row(plugin_column_width)
      log divider '---------------------------------------------------------------------------------------------------+'
    end
    log ''
  end

  def git_details
    exec 'git status'
    log ''
  end

end