# -*- coding: utf-8 -*-
# Part of Odoo. See LICENSE file for full copyright and licensing details.

import copy
import xml.dom.minidom
from cStringIO import StringIO

import reportlab.lib
from reportlab.platypus import SimpleDocTemplate, Paragraph
from reportlab.lib.units import mm
from reportlab.lib.pagesizes import A4

from . import render


class simple(render.render):
    def _render(self):
        self.result = StringIO()
        parser = xml.dom.minidom.parseString(self.xml)

        title = parser.documentElement.tagName
        doc = SimpleDocTemplate(self.result, pagesize=A4, title=title,
          author='Odoo, Fabien Pinckaers', leftmargin=10*mm, rightmargin=10*mm)

        styles = reportlab.lib.styles.getSampleStyleSheet()
        title_style = copy.deepcopy(styles["Heading1"])
        title_style.alignment = reportlab.lib.enums.TA_CENTER
        story = [ Paragraph(title, title_style) ]
        style_level = {}
        nodes = [ (parser.documentElement,0) ]
        while len(nodes):
            node = nodes.pop(0)
            value = ''
            n=len(node[0].childNodes)-1
            while n>=0:
                if node[0].childNodes[n].nodeType==3:
                    value += node[0].childNodes[n].nodeValue
                else:
                    nodes.insert( 0, (node[0].childNodes[n], node[1]+1) )
                n-=1
            if not node[1] in style_level:
                style = copy.deepcopy(styles["Normal"])
                style.leftIndent=node[1]*6*mm
                style.firstLineIndent=-3*mm
                style_level[node[1]] = style
            story.append( Paragraph('<b>%s</b>: %s' % (node[0].tagName, value), style_level[node[1]]))
        doc.build(story)
        return self.result.getvalue()

if __name__=='__main__':
    s = simple()
    s.xml = '''<test>
        <author-list>
            <author>
                <name>Fabien Pinckaers</name>
                <age>23</age>
            </author>
            <author>
                <name>Michel Pinckaers</name>
                <age>53</age>
            </author>
            No other
        </author-list>
    </test>'''
    if s.render():
        print s.get()