class Bem

# File lib/bem-on-rails/generators/templates/thor/bem.tt.rb, line 19
def create
    create_level unless level_exist?

    ess = resolve_essence
    path = path_resolve(ess)
    name = build_def(ess)
    dest = File.join path, name

    create_essence(BEM[ess.to_s.pluralize.to_sym], path)

    update_assets(name, path)
end

# File lib/bem-on-rails/generators/templates/thor/bem.tt.rb, line 55
def create_essence(essence_options, path)
    names = generate_klass
    @css_class = '.' + names[:klass]
    # If you need more templates. Please create them into templates
    # directory. Watch existing templates for example.
    # What is .tt? It is custom extension for finding templates in other files.
    if options[:tech] # Maybe recive from command line
        template "#{ options[:tech] }.tt", File.join(BEM[:root], path, names[:klass] + BEM[:techs][options[:tech].to_sym])
    else
        defaults(essence_options, path, names)
    end
end

# File lib/bem-on-rails/generators/templates/thor/bem.tt.rb, line 38
def create_level(l=options[:level])
    target = Rails.root.join BEM[:root], l

    # Make files for level assets
    BEM[:assets].each do |type, tech|
        create_file File.join target, LEVEL_ASSETS, type.to_s, "level" + tech[:ext]
    end

    # Update app assets with levels assets
    BEM[:assets].each do |type, tech|
        asset = File.join(Rails.root, "app", "assets", type.to_s, "application" + tech[:ext])
        destination = [l, LEVEL_ASSETS, type.to_s, "level" + tech[:ext]]
        create_file asset unless File.exist?(asset)
        append_file asset, "\n#{ tech[:import] } #{ File.join(destination) }#{ tech[:postfix] }"
    end
end

# File lib/bem-on-rails/generators/templates/thor/bem.tt.rb, line 68
def defaults(essence_options, path, names)
    BEM[:default].each do |tech|
        template "#{ tech }.tt", File.join(BEM[:root], path, names[:klass] + BEM[:techs][tech])
    end
end

# File lib/bem-on-rails/generators/templates/thor/bem.tt.rb, line 34
def level_exist?(l=options[:level])
    File.directory? Rails.root.join BEM[:root], l
end

# File lib/bem-on-rails/generators/templates/thor/bem.tt.rb, line 74
def update_assets(name, path)
    level = BEM[:level] || options[:level]

    BEM[:assets].each do |type, tech|
        asset = File.join(Rails.root, BEM[:root], level, LEVEL_ASSETS, type.to_s, "level" + tech[:ext])
        # BEM[:root] > level > .bem > assets
        # 4 ../
        destination = ["../../../../", path, name + tech[:ext]].reject(&:empty?)
        create_file asset unless File.exist?(asset)
        append_file asset, "\n#{ tech[:import] } #{ File.join(destination) }#{ tech[:postfix] }"
    end
end