#!/usr/bin/env python3

from xml.etree import ElementTree
import zipfile
from flask import Flask, render_template
app = Flask(__name__)

data = []
attributes= ["title",
             "authors",
             "isbn"]

fields = {}

@app.route("/r")
def updateData():
    global data
    out = []

    f = zipfile.ZipFile("library.tc")
    tree = ElementTree.parse(f.open("tellico.xml"))
    collection = tree.getroot()[0]
    ns = "{http://periapsis.org/tellico/}"

    for field in collection.find(ns + "fields"):
        #check if multiple entries are allowed
        if (int(field.attrib["flags"]) & 0x01 & 0xff) != 0:
            #change name to match
            name = field.attrib["name"] + "s"
        else:
            name = field.attrib["name"]
        fields[name] = field.attrib

    for book in collection.iter(ns + "entry"):
        bookout = {}
        for datum in fields.keys():
            if book.find(ns + datum) != None:
                t = int(fields[datum]["type"])
                #simple text, paragraph, multiple choice, image
                if t == 1 or t == 2 or t == 3 or t == 10:
                    #check if multiple entries are allowed
                    #if so, put entries in a list
                    if (int(fields[datum]["flags"]) & 0x01 & 0xff) != 0:
                        bookout[datum] = []
                        for sub in book.find(ns + datum):
                            bookout[datum].append(sub.text)
                    else:
                        bookout[datum] = book.find(ns + datum).text

                #date
                elif t == 12:
                    bookout[datum] = ""
                    if book.find(ns + "year") != None:
                        bookout[datum] += book.find(ns + "year").text
                        if book.find(ns + "month") != None:
                            bookout[datum] += "-" + book.find(ns + "month").text
                            if book.find(ns + "day") != None:
                                bookout[datum] += "-" + book.find(ns + "day").text

                elif t == 6: #Number
                    bookout[datum] = book.find(ns + datum).text
                else:
                    print(str(t) + ": " + datum)
                    bookout[datum] = ""
            else:
                bookout[datum] = ""
        out.append(bookout.copy())
    data = out.copy()
    return "success"

@app.route("/")
def main():
    if data == []:
        updateData()
    return render_template("main.html", books = data, attributes = attributes)

@app.route("/book/<int:id>")
def book(id):
    if data == []:
        updateData()
    book = next((item for item in data if int(item["id"]) == id), {})
    return render_template("book.html", book = book, fields = fields)

if __name__ == "__main__":
    app.run(debug=True, host='0.0.0.0')