#!/usr/bin/env python
# encoding: utf-8

"""
Producing then compiling templates
"""

import os
import csv
import math as m
import optparse
import random as rd
import sys

from path import Path
from pymath.calculus.polynomDeg2 import Polynom_deg2
from pymath import Dataset
from pymath import Equation
from pymath import Expression
from pymath import Fraction 
from pymath import Polynom
from pymath import random_pythagore
from pymath import random_str 
from pymath import WeightedDataset
from .texenv import texenv

EXPORT_DICT = {}
EXPORT_DICT.update(m.__dict__)
EXPORT_DICT.update(rd.__dict__)
EXPORT_DICT.update(__builtins__)
EXPORT_DICT.update({
    "Expression": Expression,
    "Polynom": Polynom,
    "Polynom_deg2": Polynom_deg2,
    "Fraction": Fraction,
    "Equation": Equation,
    "random_str": random_str,
    "random_pythagore": random_pythagore,
    "Dataset": Dataset,
    "WeightedDataset": WeightedDataset,
    })


def produce_and_compile(options):
    # template = report_renderer.get_template(options.template)
    template = texenv.get_template(options.template)

    # Saving place
    cwd = Path("./").abspath()

    template_file = Path(options.template)

    output = Path(template_file.dirname()) / Path(template_file.name[3:])

    if not options.csv_file:
        # {:02:0f} means that we want a 2 digits number
        list_infos = [
            {"num": "{:02.0f}".format(i+1)}
            for i in range(options.num_subj)
            ]
    else:
        with open(options.csv_file, 'r', encoding='ISO-8859-1') as csv_file:
            list_infos = list(csv.DictReader(csv_file, delimiter=";"))
            for (i, info) in enumerate(list_infos):
                info['num'] = "{:02.0f}".format(i+1)

    if output.dirname() != "":
        output.dirname().cd()

    output = output.name

    if options.only_corr:
        options.corr = True
    else:
        tmp_pdf = []
        for infos in list_infos:
            # print("_______" + str(infos))
            dest = Path(str(infos['num']) + output)
            tmp_pdf.append(dest.namebase + ".pdf")
            with open(dest, 'w') as output_file:
                output_file.write(
                    template.render(
                        infos=infos,
                        **EXPORT_DICT
                        )
                    )

            if not options.no_compil:
                os.system("pdflatex " + dest)

        if not options.dirty:
            os.system("rm *.aux *.log")

        if not options.no_join:
            print(Path("./").abspath())
            print(
                "pdfjam "
                + " ".join(tmp_pdf)
                + " -o all"
                + Path(output).namebase
                + ".pdf"
                )
            os.system(
                "pdfjam "
                + " ".join(tmp_pdf)
                + " -o all"
                + Path(output).namebase
                + ".pdf"
                )
            # os.system("pdfjam *.pdf -o all" + Path(output).namebase + ".pdf")
            print("rm " + " ".join(tmp_pdf))
            os.system("rm " + " ".join(tmp_pdf))

    if options.corr:
        find_subj_tex_files = "find ./ -iname '[0-9]*_*.tex' "
        os.system(
            find_subj_tex_files
            + " -exec sed -i 's/%\\\\printanswers/\\\\printanswers/g' {} \\;"
            )

        if not options.no_compil:
            os.system(
                find_subj_tex_files
                + " -exec pdflatex {} \\;"
                )
            os.system(
                find_subj_tex_files
                + " -exec sed -i 's/\\\\printanswers/%\\\\printanswers/g' {} \\;"
                )

        if not options.dirty:
            os.system("rm *.aux *.log")

        if not options.no_join:
            print(Path("./").abspath())
            print(
                "pdfjam `find ./ -iname '[0-9]*.pdf'` -o corr"
                + Path(output).namebase + ".pdf"
                )
            os.system(
                "pdfjam `find ./ -iname '[0-9]*.pdf'` -o corr"
                + Path(output).namebase + ".pdf"
                )
            # os.system("pdfjam *.pdf -o all" + Path(output).namebase + ".pdf")
            print(r"find ./ -iname '[0-9]*.pdf' -exec rm -f {} \;")
            os.system(r"find ./ -iname '[0-9]*.pdf' -exec rm -f {} \;")

    cwd.cd()


def main():
    parser = optparse.OptionParser()
    parser.add_option(
        "-t",
        "--template",
        action="store",
        type="string",
        dest="template",
        help="File with the template. The name should have the following form tpl_... ."
        )
    parser.add_option(
        "-C",
        "--csv",
        action="store",
        type="string",
        dest="csv_file",
        help="Filename of the csv file where informations on subjects are stored"
        )
    parser.add_option(
        "-N",
        "--number_subjects",
        action="store",
        type="int",
        dest="num_subj",
        default = 1,
        help="The number of subjects to make"
        )
    parser.add_option(
        "-d",
        "--dirty",
        action="store_true",
        dest="dirty",
        help="Do not clean after compilation"
        )
    parser.add_option(
        "-n",
        "--no-compile",
        action="store_true",
        dest="no_compil",
        help="Do not compile source code"
        )
    parser.add_option(
        "-j",
        "--no-join",
        action="store_true",
        dest="no_join",
        help="Do not join pdf and clean single pdf"
        )
    parser.add_option(
        "-o",
        "--only-corr",
        action="store_true",
        dest="only_corr",
        help="Create and compile only correction from existing subjects"
        )
    parser.add_option(
        "-c",
        "--corr",
        action="store_true",
        dest="corr",
        help="Create and compile correction while making subjects"
        )

    (options, _) = parser.parse_args()

    if not options.template:
        print("I need a template!")
        sys.exit(0)

    produce_and_compile(options)


if __name__ == '__main__':
    main()


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