require 'rss/maker'
require 'open-uri'
require 'iconv'
require 'cgi'

class String
	def esTitular
		!self.index('<P>') && !self[/([0-1][0-9]|2[0-3])(:|.)[0-5][0-9]/]
	end
	def esUltimaHora
		!self.index('<P>') && self[/([0-1][0-9]|2[0-3])(:|.)[0-5][0-9]/]
	end
	def obtenEnlace
		pos = self.index('/prontus4_nots')
		posIni = pos-1;
		stringStart = self[posIni,1]
		posEnd = self.index(stringStart,pos)
		newsLink = self[ posIni+1, posEnd - posIni - 1]
		
		newsLink
	end
	
	def obtenTitular
		posIni = self.index('>') + 1
		posEnd = self.index('<',posIni)
		newsTitle = CGI::unescapeHTML( self[ posIni, posEnd-posIni ] )
		
		newsTitle
	end

	def obtenDescripcion
		posIni = self.index('>') + 1
		posEnd = self.index('<',posIni)
		newsDescripcion = CGI::unescapeHTML( self[ posIni, posEnd-posIni ] )
		
		newsDescripcion
	end
end

version = "2.0" # ["0.9", "1.0", "2.0"]
destination = "/home/vladimirprieto/vladimir.akilles.cl/myrss/estrella_iquique/estrella_iquique.xml" # local file to write
#destination = "estrella_iquique.xml" # local file to write
destination2 = "estrella_iquique.html" # local file to write
wwwBase = 'http://www.estrellaiquique.cl'
www = wwwBase + '/matriz/index.html'

codigo = ""
lines = []
open(www) do |s| codigo = s.read end
#codigo = Iconv.iconv("UTF8","ISO8859-1",codigo)
lines = codigo.split("\n")

#sólo titulares
noticias = []
lines.each_index {|i|
	if lines[i].index('titular') || lines[i].index('bajada')
		if lines[i+1].index('<P>') || lines[i+1].index('<a ')
			noticias.push( Iconv.iconv( "UTF8","ISO8859-1",lines[i+1] ) )
		elsif lines[i+2].index('<P>') || lines[i+2].index('<a ')
			noticias.push( Iconv.iconv( "UTF8","ISO8859-1",lines[i+2] ) )
		end
	end
}

content = RSS::Maker.make(version) do |m|
	m.channel.title = "Sindicación del Diario la Estrella de Iquique"
	m.channel.link = "http://www.estrellaiquique.cl"
	m.channel.description = "sindicación hecha por Vladimir Prieto, a falta de que el diario saque una propia"
	m.items.do_sort = false # sort items by date

	#análisis para noticias de ultima hora
	noticias.each_index {|s|
		if noticias[s][0].esUltimaHora
			i = m.items.new_item
			i.title = noticias[s][0].obtenTitular	
			i.link = wwwBase + noticias[s][0].obtenEnlace
			i.description = noticias[s+1][0].obtenDescripcion
			i.date = Time.now
		end
	}

	#análisis para los titulares
	noticias.each_index {|s|
		if noticias[s][0].esTitular
			i = m.items.new_item
			i.title = noticias[s][0].obtenTitular	
			i.link = wwwBase + noticias[s][0].obtenEnlace
			i.description = noticias[s+1][0].obtenDescripcion
			i.date = Time.now
		end
	}
end

File.open(destination,"w") do |f|
	f.write(content)
end

#File.open(destination2,"w") do |f|
#	f.write(noticias)
#end