package feeder

import "os"
import "xmlx"

func (this *Feed) readRss2(doc *xmlx.Document) (err os.Error) {
	channels := doc.SelectNodes("", "channel")
	for _, node := range channels {
		ch := Channel{}
		ch.Title = node.GetValue("", "title")

		list := node.SelectNodes("", "link")
		ch.Links = make([]Link, len(list))
		for i, v := range list {
			ch.Links[i].Href = v.Value
		}

		ch.Description = node.GetValue("", "description")
		ch.Language = node.GetValue("", "language")
		ch.Copyright = node.GetValue("", "copyright")
		ch.ManagingEditor = node.GetValue("", "managingEditor")
		ch.WebMaster = node.GetValue("", "webMaster")
		ch.PubDate = node.GetValue("", "pubDate")
		ch.LastBuildDate = node.GetValue("", "lastBuildDate")
		ch.Docs = node.GetValue("", "docs")

		list = node.SelectNodes("", "category")
		ch.Categories = make([]Category, len(list))
		for i, v := range list {
			ch.Categories[i].Domain = v.GetAttr("", "domain")
			ch.Categories[i].Text = v.Value
		}

		n := node.SelectNode("", "generator")
		if n != nil {
			ch.Generator = Generator{}
			ch.Generator.Text = n.Value
		}

		ch.TTL = node.GetValuei("", "ttl")
		ch.Rating = node.GetValue("", "rating")

		list = node.SelectNodes("", "hour")
		ch.SkipHours = make([]int, len(list))
		for i, v := range list {
			ch.SkipHours[i] = int(v.GetValuei("", "hour"))
		}

		list = node.SelectNodes("", "days")
		ch.SkipDays = make([]int, len(list))
		for i, v := range list {
			ch.SkipDays[i] = mapDay(v.Value)
		}

		if n = node.SelectNode("", "image"); n != nil {
			ch.Image.Title = n.GetValue("", "title")
			ch.Image.Url = n.GetValue("", "url")
			ch.Image.Link = n.GetValue("", "link")
			ch.Image.Width = n.GetValuei("", "width")
			ch.Image.Height = n.GetValuei("", "height")
			ch.Image.Description = n.GetValue("", "description")
		}

		if n = node.SelectNode("", "cloud"); n != nil {
			ch.Cloud = Cloud{}
			ch.Cloud.Domain = n.GetAttr("", "domain")
			ch.Cloud.Port = n.GetAttri("", "port")
			ch.Cloud.Path = n.GetAttr("", "path")
			ch.Cloud.RegisterProcedure = n.GetAttr("", "registerProcedure")
			ch.Cloud.Protocol = n.GetAttr("", "protocol")
		}

		if n = node.SelectNode("", "textInput"); n != nil {
			ch.TextInput = Input{}
			ch.TextInput.Title = n.GetValue("", "title")
			ch.TextInput.Description = n.GetValue("", "description")
			ch.TextInput.Name = n.GetValue("", "name")
			ch.TextInput.Link = n.GetValue("", "link")
		}

		list = node.SelectNodes("", "item")
		for _, item := range list {
			i := Item{}
			i.Title = item.GetValue("", "title")
			i.Description = item.GetValue("", "description")

			list = node.SelectNodes("", "link")
			i.Links = make([]Link, 0)
			for _, v := range list {
				lnk := Link{}
				lnk.Href = v.Value
				i.Links = append(i.Links, lnk)
			}

			if n = item.SelectNode("", "author"); n != nil {
				i.Author = Author{}
				i.Author.Name = n.Value
			}

			i.Comments = item.GetValue("", "comments")
			i.Guid = item.GetValue("", "guid")
			i.PubDate = item.GetValue("", "pubDate")

			list := item.SelectNodes("", "category")
			i.Categories = make([]Category, len(list))
			for li, lv := range list {
				i.Categories[li].Domain = lv.GetAttr("", "domain")
				i.Categories[li].Text = lv.Value
			}

			list = item.SelectNodes("", "enclosure")
			i.Enclosures = make([]Enclosure, len(list))
			for li, lv := range list {
				i.Enclosures[li].Url = lv.GetAttr("", "url")
				i.Enclosures[li].Length = lv.GetAttri64("", "length")
				i.Enclosures[li].Type = lv.GetAttr("", "type")
			}

			src := item.SelectNode("", "source")
			if src != nil {
				i.Source = Source{}
				i.Source.Url = src.GetAttr("", "url")
				i.Source.Text = src.Value
			}

			ch.Items = append(ch.Items, i)
		}

		this.Channels = append(this.Channels, ch)
	}
	return
}

func mapDay(day string) int {
	switch day {
	case "Monday":
		return 1
	case "Tuesday":
		return 2
	case "Wednesday":
		return 3
	case "Thursday":
		return 4
	case "Friday":
		return 5
	case "Saturday":
		return 6
	case "Sunday":
		return 7
	}
	return 1
}