#!/usr/bin/python3
import codecs
import logging
import re
import sys

import jinja2

import xml.etree.ElementTree as et


logging.basicConfig(
    format="%(levelname)s:%(funcName)s:%(message)s", level=logging.INFO
)

cur_year = 2022

book_abbrs = {
    "Gn": "Gen",
    "Ex": "Exod",
    "Lv": "Lev",  # NA in source code,
    "Nu": "Num",
    "Dt": "Deut",
    "Jos": "Josh",
    "Jdc": "Judg",
    "Rth": "Ruth",
    "1Sm": "1%20Sam",
    "2Sm": "2%20Sam",
    "1Rg": "1%20Kgs",
    "2Rg": "2%20Kgs",
    "1Chr": "1%20Chr",
    "2Chr": "2%20Chr",
    "Esr": "Ezra",
    "Neh": "Neh",
    "Esth": "Esth",  # NA in source code,
    "Job": "Job",
    "Ps": "Ps",
    "Prv": "Prov",
    "Eccl": "Eccl",
    "Song": "Song",  # NA in source code,
    "Is": "Isa",
    "Jr": "Jer",
    "Thr": "Lam",
    "Ez": "Ezek",
    "Dn": "Dan",
    "Hos": "Hos",
    "Joel": "Joel",
    "Am": "Amos",
    "Obad": "Obad",  # NA in source code
    "Jon": "Jonah",
    "Mch": "Mic",
    "Nah": "Nah",  # NA in source code
    "Hab": "Hab",
    "Zph": "Zeph",
    "Hgg": "Hag",
    "Zch": "Zech",
    "Ml": "Mal",
    "Mt": "Matt",
    "Mc": "Mark",
    "L": "Luke",
    "J": "John",
    "Act": "Acts",
    "R": "Rom",
    "1K": "1%20Cor",
    "2K": "2%20Cor",
    "G": "Gal",
    "E": "Eph",
    "Ph": "Phil",
    "Kol": "Col",
    "1Th": "1%20Thess",
    "2Th": "2%20Thess",
    "1T": "1%20Tim",
    "2T": "2%20Tim",
    "Tt": "Titus",
    "Phm": "Phlm",
    "H": "Heb",
    "Jc": "Jas",
    "1P": "1%20Pet",
    "2P": "2%20Pet",
    "1J": "1%20John",
    "2J": "2%20John",
    "3J": "3%20John",
    "Jd": "Jude",
    "Ap": "Rev",
}


def csv2dict(filename):
    out_dict = {}
    split_re = re.compile(r"\s+")
    field_names = ["no", "test", "cs_abbr", "cs_name", "de_abbr", "de_name"]
    with codecs.open(filename, "rb", "utf8") as csvfile:
        for row in csvfile:
            line_dict = dict(zip(field_names, split_re.split(row)))
            out_dict[line_dict["cs_abbr"]] = line_dict
    logging.debug("out_dict:\n%s", out_dict)
    return out_dict


def parse_verses(lines):
    """
    Having list of <L> elements, make the text out of them (with
    <BR> elements where necessary).
    """
    out = ""
    logging.debug("lines = %s", lines)
    logging.debug("lines = len %s", len(lines))
    if len(lines) > 0:
        out = lines[0].text
        if len(lines) > 1:
            for line in lines[1:]:
                logging.debug("lines = %s", lines)
                logging.debug("another line = %s", line.text)
                if line.text is not None:
                    out += "<br>\n" + line.text
    logging.debug("body = %s", out)
    return out


def parse_body(elem):
    """Parse one verse element
    Example could be (or NT instead of OT, or DAY):
      <OT>
       <S b="Ps" ch="91" v="9"/>
       <L>V Hospodinu je tvé útočiště.</L>
       <SL>Žalm 91,9</SL>
      </OT>
    """
    if len(list(elem)) == 0:
        return None

    wword = {"text": ""}
    source_elem = elem.find("S")
    logging.debug("S elem = %s", source_elem)
    logging.debug("S elem = attrib %s", source_elem.attrib)

    # biblical reference (computer readable)
    wword["ref_id"] = {
        "book": source_elem.attrib["b"],
        "chapter": source_elem.attrib["ch"],
        "verse": source_elem.attrib["v"],
    }
    logging.debug("wword['ref_id'] = %s", wword["ref_id"])

    # biblical reference (compatible with the English Bible programs)
    try:
        wword["int_ref_id"] = wword["ref_id"].copy()
        wword["int_ref_id"]["book"] = book_abbrs[wword["ref_id"]["book"]]
    except KeyError:
        logging.error("book = %s", wword["ref_id"])
        raise

    # text of the verse
    wword["text"] = parse_verses(list(elem.iter("L")))

    # references
    ref = elem.find("SL")
    logging.debug("ref = %s", ref)
    logging.debug("ref = len %s", len(ref))
    if ref is not None:
        wword["ref"] = ref.text
    return wword


def parse_losung(elem):
    """
    Parse one losung. Example:
    <LOSUNG d="1" m="1">
     <TL>Pátek 1. ledna 2021</TL>
     <OT>
      <S b="Lv" ch="19" v="11"/>
      <L>Nebudete krást ani obelhávat a podvádět svého bližního.</L>
      <SL>3.Mojžíšova 19,11</SL>
     </OT>
     <NT>
      <S b="1P" ch="3" v="8"/>
      <L>Všichni buďte jedné mysli, soucitní, plní bratrské lásky,
      milosrdní a pokorní, neodplácejte zlým za zlé ani urážkou za
      urážku, naopak žehnejte; vždyť jste byli povoláni k tomu, abyste
      se stali dědici požehnání.</L>
      <SL>1.Petrova 3,8-9</SL>
     </NT>
     <Ev><SL>Lukáš 4,16-21</SL></Ev>
     <Ep><SL>Jakubova 4,13-15</SL></Ep>
     <Pr><SL>Filipským 4,10-20</SL></Pr>
     <AT><SL>Jozue 1,1-9</SL></AT>
     <Bl><SL>Žalm 100</SL></Bl>
    </LOSUNG>

    <LOSUNG d="2" m="1">
     <TL>Sobota 2. ledna 2021</TL>
     <OT>
      <S b="Neh" ch="8" v="8"/>
      <L>Četli z knihy Božího zákona po oddílech a vykládali smysl, aby
      lid rozuměl tomu, co četli.</L>
      <SL>Nehemiáš 8,8</SL>
     </OT>
     <NT>
      <S b="Act" ch="28" v="30"/>
      <L>Pavel zůstal celé dva roky v najatém bytě a přijímal všechny,
      kdo za ním přišli, zvěstoval Boží království a učil všemu o Pánu
      Ježíši Kristu bez bázně a bez překážek.</L>
      <SL>Skutky 28,30-31</SL>
     </NT>
     <SR><SL>Jozue 24,1-26</SL></SR>
     <CR><SL>Lukáš 3,1-6</SL></CR>
    </LOSUNG>
    """
    logging.debug("losung = %s", elem)
    out = {}
    date_id = (
        cur_year,
        int(elem.attrib["m"]),
        int(elem.attrib["d"]),
    )
    out["date_id"] = "%4d-%02d-%02d" % (date_id)
    logging.debug("date_id = %s", out["date_id"])

    out["date_full"] = elem.find("TL").text
    out["watchwords"] = []

    for tst in ["OT", "NT"]:
        sect = elem.find(tst)
        out["watchwords"].append(parse_body(sect))

    out["readings"] = []
    for read in ["SR", "CR", "Ev", "Ep", "Pr", "AT", "Bl"]:
        sect = elem.find(read)
        logging.debug("read %s = %s", read, sect)
        try:
            out["readings"].append(
                "\n".join([el.text for el in sect.findall("SL")])
            )
        except AttributeError:
            logging.exception("Parsing heslo pro %s", sect)

    out["chronicles"] = []
    for chron in elem.findall("C"):
        out["chronicles"].append(
            "\n".join([line.text for line in chron.findall("L")])
        )

    return date_id, out


def parse_day(elem, whole_dict):
    """
    Parsse <DAY> element.

    Example:
       <DAY d="1" m="1" type="holiday" name="Nový Rok  ">
         <S b="Kol" ch="3" v="17"/>
         <L>Všechno, cokoli mluvíte nebo děláte,</L>
         <L>čiňte ve jménu Pána Ježíše a skrze něho děkujte Bohu Otci.</L>
         <SL>Koloským 3,17</SL>
       </DAY>

       <DAY d="17" m="2" type="sunday" name="Invocavit"
            meaning="Vzývati mne bude a vyslyším jej. Žalm 91,15" ord="7">
         <S b="1J" ch="3" v="8"/>
         <L>Proto se zjevil Syn Boží, aby zmařil činy ďáblovy.</L>
         <SL>1.Janova 3,8b</SL>
       </DAY>

       <DAY d="13" m="1" type="week" name="Alianční modlitební týden  ">
       </DAY>
    """
    date_id = (
        cur_year,
        int(elem.attrib["m"]),
        int(elem.attrib["d"]),
    )
    logging.debug("date_id = %s", date_id)
    out = whole_dict[date_id]

    if elem.attrib["type"] == "holiday":
        out["holy_name"] = elem.attrib["name"].strip()
        out["holy_text"] = parse_body(elem)
    elif elem.attrib["type"] == "sunday":
        out["sun_name"] = elem.attrib["name"].strip()
        if "meaning" in elem.attrib:
            out["sun_mean"] = elem.attrib["meaning"].strip()
        out["sun_ord"] = int(elem.attrib["ord"])
        out["sun_text"] = parse_body(elem)
    elif elem.attrib["type"] == "week":
        out["week_title"] = elem.attrib["name"].strip()
    else:
        raise ValueError("Unknown DAY type = %s", elem.attrib["type"])


def parse_file(filename):
    tree = et.parse(filename).getroot()
    article_dict = {}
    env = jinja2.Environment(loader=jinja2.FileSystemLoader("templates"))
    template = env.get_template("czech.html")

    for los in tree.iter("LOSUNG"):
        key, text = parse_losung(los)
        article_dict[key] = text

    for los in tree.iter("DAY"):
        parse_day(los, article_dict)

    article_list = []
    article_keys = sorted(article_dict.keys())
    for key in article_keys:
        article_list.append(article_dict[key])
    return template.render(articles=article_list)


if __name__ == "__main__":
    print(parse_file(sys.argv[1]))