require 'iconv'

module ApplicationHelper

def form_field(object,field,flabel,example,val)
    model_name = eval(object.class.model_name)
	html = ""
	html << "<div class=\"param_group\">"
	if not object.errors[field.to_sym].empty?
		html << "<div class=\"fieldWithErrors\">"

	end

	html << "<label class=\"label\">"
	flabel.nil? ? html << model_name.human_attribute_name(field) : html << t(flabel.to_sym)
	html << "</label>"

	if not object.errors[field.to_sym].empty?
		html << "<span class=\"error\"> "
		html << object.errors[field.to_sym].to_s
		html << "</span>"
		html << "</div>"
	end
	html << "<input id=\""
	html << object.class.name.downcase+"_"+field
	html << "\""
	html << " name=\"#{object.class.name.downcase}[#{field}]\""
	html << " type=\"text\" class=\"text_field\" value=\""
    value =  val || object.instance_eval(field) || ""
	html << value
	html << "\"/>"
	html << "<span class=\"description\">"
	html << t(:example,:scope=>:common)
	html << ": "
	html << example
	html << "</span>"
	html << "</div>"

end

def show_param_view(object,field,value)
    model_name = eval(object.class.model_name)
    html = ""
    html << "<div class=\"group clearfix\">"
    html << "<label class=\"label\">#{model_name.human_attribute_name(field)}: </label>"
    html << value
    html << "</div>"
    html
end

def area_field(object,field,flabel,example,val,cols,rows)
    model_name = eval(object.class.model_name)
    html = ""
    html << "<div class=\"group\">"

    if not object.errors[field.to_sym].empty?
        html << "<div class=\"fieldWithErrors\">"
    end

    html << "<label class=\"label\">"
    flabel.nil? ? html << model_name.human_attribute_name(field) : html << t(flabel.to_sym)
    html << "</label>"

    if not object.errors[field.to_sym].empty?
        html << "<span class=\"error\">"
        html << object.errors[field.to_sym].to_s
        html << "</span>"
        html << "</div>"
    end

    name = object.class.name.downcase + '[' + field + ']'
    id = object.class.name.downcase+"_"+field
    value = val || object.instance_eval(field) || ""
    html << "<textarea id=\"#{id}\" name=\"#{name}\" class=\"text_area\" cols=\"#{cols}\" rows=\"#{rows}\">#{value}</textarea>"

    desc = t(:example,:scope=>:common) + ": " + example
    html << "<span class=\"description\">#{desc}</span>"

    html << "</div>"
end

def form_button(text,image)
	html = ""
	html << "<div class=\"group\">"
	html << "<button class=\"button\" type=\"submit\">"
	html << "<img src=\""
	html << current_theme_image_path(image)
	html << "\" alt=\""
	html << t(text.to_sym)
	html << "\" />"
	html << t(text.to_sym)
	html << "</button></div>"
end

def single_action(text,scope,image)
	html = ""
	html << "<div class=\"actiongroup clearfix\">"
	html << "<button class=\"button\" name=\"#{text}\" type=\"submit\">"
	html << "<img src=\""
	html << current_theme_image_path(image)
	html << "\" alt=\""
	html << t(text.to_sym, :scope => scope.to_sym)
	html << "\" />"
	html << t(text.to_sym, :scope => scope.to_sym)
	html << "</button></div>"
end

def single_action_onclick(text,scope,image,onclick)
	html = ""
	html << "<div class=\"actiongroup clearfix\">"
    html << "<button class=\"button\" type=\"submit\" onclick=\"window.location='"
    html << onclick
    html << "'\">"
	html << "<img src=\""
	html << current_theme_image_path(image)
	html << "\" alt=\""
	html << t(text.to_sym, :scope => scope.to_sym)
	html << "\" />"
	html << t(text.to_sym, :scope => scope.to_sym)
	html << "</button>"
	html << "</div>"
end

def group_action(buttons)
    html =  ""
	html << "<div class=\"actiongroup clearfix\">"
	buttons.each do |b|
        html << "<button class=\"button\" type=\"submit\" name=\"#{b[:text]}\">"
        html << "<img src=\""
        html << current_theme_image_path(b[:image])
        html << "\" alt=\""
        html << t(b[:text].to_sym,:scope=>b[:scope].to_sym)
        html << "\" />"
        html << t(b[:text].to_sym,:scope=>b[:scope].to_sym)
        html << "</button> "
	end
	html << "</div>"
end

def group_action_text(buttons,text)
    html =  ""
	html << "<div class=\"group\">"
	buttons.each do |b|
        html << "<button class=\"button\" type=\"submit\" name=\"#{b[:text]}\">"
        html << "<img src=\""
        html << current_theme_image_path(b[:image])
        html << "\" alt=\""
        html << t(b[:text].to_sym,:scope=>b[:scope].to_sym)
        html << "\" />"
        html << t(b[:text].to_sym,:scope=>b[:scope].to_sym)
        html << "</button> "
	end
	html << text
	html << "</div>"
end

def form_buttons(buttons)
	html = ""
	html << "<div class=\"group\">"

	buttons.each do |b|
	html << "<button class=\"button\" type=\"submit\" name=\"#{b[:text]}\">"
	html << "<img src=\""
	html << current_theme_image_path(b[:image])
	html << "\" alt=\""
	html << t(b[:text].to_sym)
	html << "\" />"
	html << t(b[:text].to_sym)
	html << "</button> "
	end

	html << "</div>"
end

def form_button_value(text,image,onclick)
	html = ""
	html << "<div class=\"group\">"
	html << "<button class=\"button\" type=\"submit\" onclick=\"window.location='"
	html << onclick
	html << "'\">"
	html << "<img src=\""
	html << current_theme_image_path(image)
	html << "\" alt=\""
	html << text
	html << "\" />"
	html << t(text.to_sym)
	html << "</button></div>"
end

def simple_input_field(name,id,label,value)
    html = ""
    html << "<div class=\"param_group\">"
    html << "<label class=\"label\">#{label}</label>"
    html << "<input name=\"#{name}[#{id}]\" id=\"#{name}_#{id} class=\"text_field\" type=\"text\" value=\"#{value}\">"
    html << "</div>"
end

def select_field(name,object,label,blank)
    html = ""
    html << "<div class=\"group\">"
    html << "<label class=\"label\">#{label}</label>"
    html << select(name, name, object.all.collect {|p| [ p.name, p.id ] }, { :include_blank => (blank == true ? true : false)})
    html << "</div>"
end

def select_field_table(object,field,table_choices,choice,blank)
    model_name = eval(object.class.model_name)
    html = ""
    html << "<div class=\"param_group\">"
    html << "<label class=\"label\">#{model_name.human_attribute_name(field)}</label>"
    html << select(object.class.to_s.downcase, field, options_for_select(table_choices,choice), {:include_blank => blank})
    html << "</div>"
end

def select_field_table_t(object,field,table_choices,choice,blank)
    model_name = eval(object.class.model_name)
    html = ""
    html << "<div class=\"param_group\">"
    html << "<label class=\"label\">#{model_name.human_attribute_name(field)}</label>"
    t = []
    table_choices.each do |c|
        t << [t(c.to_sym,:scope=>:prefs),c.to_s]
    end
    html << select(object.class.to_s.downcase, field, options_for_select(t,choice), {:include_blank => blank})
    html << "</div>"
end

#def form_simle_field(name,label,value)
#    html = ""
#    html << "<div class=\"group\">"
#    html << "<label class=\"label\">#{label}</label>"
#    html << "<input class=\"text_field\" type=\"text\" value=\"#{value}\">"
#    html << "</div>"
#end

#def nav_to_folders
#    link_to( t(:folders,:scope=>:folder), :controller=>:folders, :action=>:index )
#end
#
#def nav_to_messages
#    link_to( t(:messages,:scope=>:message), :controller=>:messages, :action=>:index )
#end
#
#def nav_to_compose
#    link_to( t(:compose,:scope=>:compose), :controller=>:messages, :action=>:compose )
#end
#
#def nav_to_contacts
#    link_to( t(:contacts,:scope=>:contact), contacts_path )
#end
#
#def nav_to_prefs
#    link_to( t(:prefs,:scope=>:prefs), prefs_look_path )
#end

def single_navigation(label,scope)
    s = ""
    s += "<ul>"
    s += "<li class=\"first active\">#{link_to(t(label,:scope=>scope),'#')}</li>"
    s += "<li class=\"last\">&nbsp;</li>"
    s += "</ul>"
end

def main_navigation(active)
    instance_variable_set("@#{active}", "active")
    s = ""
    s += "<ul>"
    s += "<li class=\"first #{@messages_tab}\">#{link_to( t(:messages,:scope=>:message), messages_path )}</li>"
    s += "<li class=\"#{@compose_tab}\">#{link_to( t(:compose,:scope=>:compose), compose_path )}</li>"
    s += "<li class=\"#{@folders_tab}\">#{link_to( t(:folders,:scope=>:folder), folders_path )}</li>"
    s += "<li class=\"#{@contacts_tab}\">#{link_to( t(:contacts,:scope=>:contact), contacts_path )}</li>"
    s += "<li class=\"#{@prefs_tab}\">#{link_to( t(:prefs,:scope=>:prefs), prefs_look_path )}</li>"
    s += "<li class=\"last #{@links_tab}\">#{link_to( t(:links,:scope=>:link), links_path )}</li>"
    s += "</ul>"
end

def prefs_navigation(active)
    instance_variable_set("@#{active}", "active")
    s = ""
    s += "<ul>"
    s += "<li class=\"first #{@look_tab}\">#{link_to( t(:look,:scope=>:prefs), prefs_look_path )}</li>"
    s += "<li class=\"#{@identity_tab}\">#{link_to( t(:identity,:scope=>:prefs), prefs_identity_path )}</li>"
    s += "<li class=\"last #{@servers_tab}\">#{link_to( t(:servers,:scope=>:prefs), prefs_servers_path )}</li>"
    s += "</ul>"
end

def multi_select(id, name, objects, selected_objects, label, value,joiner,content = {})
  options = ""
  objects.each do |o|
    selected = selected_objects.include?(o) ? " selected=\"selected\"" : ""
    option_value = escape_once(o.send(value))
    text = [option_value]
    unless content[:text].nil?
      text = []
      content[:text].each do |t|
        text << o.send(t)
      end
      text = text.join(joiner)
    end
    text.gsub!(/^\./,'')
    bracket = []
    unless content[:bracket].nil?
      content[:bracket].each do |b|
        bracket << o.send(b)
      end
      bracket = bracket.join(joiner)
    end
    option_content = bracket.empty? ? "#{text}" : "#{text} (#{bracket})"
    options << "<option value=\"#{option_value}\"#{selected}>&nbsp;&nbsp;#{option_content}&nbsp;&nbsp;</option>\n"
  end
  "<div class=\"param_group\"><label class=\"label\">#{label}</label><select multiple=\"multiple\" size=10 id=\"#{id}\" name=\"#{name}\">\n#{options}</select></div>"
end

def force_charset(text)
    begin
        Iconv.iconv("UTF-8",$defaults["msg_unknown_charset"],text)
    rescue
        text
    end
end

def content_for_sidebar
    s = render :partial => 'sidebar/logo'
    s += render :partial => 'folders/list'
    s += render :partial => 'sidebar/calendar_view'
    s += render :partial => 'internal/version'
    s
end

def boolean_answer(answer)
	answer == true ? t(:true_answer,:scope=>:common) : t(:false_answer,:scope=>:common)
end

end