#!/usr/bin/env python

import jinja2
import os
import sys


"""fn_tex = 'requirements_specification.tex'
fn_pdf = 'requirements_specification.pdf'
tmp_path = 'tmp'"""


def tex_gen(reqif_data, tex_path):
    print('Creating LaTeX-File %s' % tex_path)
    with open(tex_path, 'w') as fh:
        #
        template_path = os.path.abspath(os.path.join(os.path.dirname(__file__), 'templates', 'tex'))
        template_filename = 'requirement_specification.tex'
        jenv = jinja2.Environment(loader=jinja2.FileSystemLoader(template_path))
        template = jenv.get_template(template_filename)
        fh.write(template.render(data=reqif_data))


def pdf_gen(tex_path):
    pdf_path = os.path.splitext(tex_path)[0] + '.pdf'
    print('Creating PDF %s' % pdf_path)
    for i in range(3):
        sys.stdout.write('      Starting run %d/3 of pdflatex... ' % (i + 1))
        sys.stdout.flush()
        exit_value = os.system("pdflatex -interaction nonstopmode %s 1> /dev/null" % tex_path)
        if exit_value != 0:
            print('FAILED')
            return -1
            break
        else:
            print('SUCCESS')
    return 0