# -*- coding: utf-8 -*-
#
# Copyright (c) 2013-2018 Pawel Jastrzebski <pawelj@iosphe.re>
#
# Permission to use, copy, modify, and/or distribute this software for
# any purpose with or without fee is hereby granted, provided that the
# above copyright notice and this permission notice appear in all
# copies.
#
# THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL
# WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED
# WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE
# AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
# DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA
# OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
# TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
# PERFORMANCE OF THIS SOFTWARE.

import os
from xml.dom.minidom import parse, Document
from re import compile
from subprocess import STDOUT, PIPE
from psutil import Popen
from tempfile import mkdtemp
from shutil import rmtree
from . import comicarchive


class MetadataParser:
    def __init__(self, source):
        self.source = source
        self.data = {'Series': '',
                     'Volume': '',
                     'Number': '',
                     'Writers': [],
                     'Pencillers': [],
                     'Inkers': [],
                     'Colorists': [],
                     'Summary': '',
                     'MUid': '',
                     'Bookmarks': []}
        self.rawdata = None
        self.format = None
        if self.source.endswith('.xml') and os.path.exists(self.source):
            self.rawdata = parse(self.source)
            self.parseXML()
        elif not self.source.endswith('.xml'):
            try:
                cbx = comicarchive.ComicArchive(self.source)
                self.rawdata = cbx.extractMetadata()
                self.format = cbx.type
            except OSError as e:
                raise UserWarning(e.strerror)
        if self.rawdata:
            self.parseXML()

    def parseXML(self):
        if len(self.rawdata.getElementsByTagName('Series')) != 0:
            self.data['Series'] = self.rawdata.getElementsByTagName('Series')[0].firstChild.nodeValue
        if len(self.rawdata.getElementsByTagName('Volume')) != 0:
            self.data['Volume'] = self.rawdata.getElementsByTagName('Volume')[0].firstChild.nodeValue
        if len(self.rawdata.getElementsByTagName('Number')) != 0:
            self.data['Number'] = self.rawdata.getElementsByTagName('Number')[0].firstChild.nodeValue
        if len(self.rawdata.getElementsByTagName('Summary')) != 0:
            self.data['Summary'] = self.rawdata.getElementsByTagName('Summary')[0].firstChild.nodeValue
        for field in ['Writer', 'Penciller', 'Inker', 'Colorist']:
            if len(self.rawdata.getElementsByTagName(field)) != 0:
                for person in self.rawdata.getElementsByTagName(field)[0].firstChild.nodeValue.split(', '):
                    self.data[field + 's'].append(person)
            self.data[field + 's'] = list(set(self.data[field + 's']))
            self.data[field + 's'].sort()
        if len(self.rawdata.getElementsByTagName('ScanInformation')) != 0:
            coverId = compile('(MCD\\()(\\d+)(\\))')\
                .search(self.rawdata.getElementsByTagName('ScanInformation')[0].firstChild.nodeValue)
            if coverId:
                self.data['MUid'] = coverId.group(2)
        if len(self.rawdata.getElementsByTagName('Page')) != 0:
            for page in self.rawdata.getElementsByTagName('Page'):
                if 'Bookmark' in page.attributes and 'Image' in page.attributes:
                    self.data['Bookmarks'].append((int(page.attributes['Image'].value),
                                                   page.attributes['Bookmark'].value))

    def saveXML(self):
        if self.rawdata:
            root = self.rawdata.getElementsByTagName('ComicInfo')[0]
            for row in (['Series', self.data['Series']], ['Volume', self.data['Volume']],
                        ['Number', self.data['Number']], ['Writer', ', '.join(self.data['Writers'])],
                        ['Penciller', ', '.join(self.data['Pencillers'])], ['Inker', ', '.join(self.data['Inkers'])],
                        ['Colorist', ', '.join(self.data['Colorists'])], ['Summary', self.data['Summary']],
                        ['ScanInformation', 'MCD(' + self.data['MUid'] + ')' if self.data['MUid'] else '']):
                if self.rawdata.getElementsByTagName(row[0]):
                    node = self.rawdata.getElementsByTagName(row[0])[0]
                    if row[1]:
                        node.firstChild.replaceWholeText(row[1])
                    else:
                        root.removeChild(node)
                elif row[1]:
                    main = self.rawdata.createElement(row[0])
                    root.appendChild(main)
                    text = self.rawdata.createTextNode(row[1])
                    main.appendChild(text)
        else:
            doc = Document()
            root = doc.createElement('ComicInfo')
            root.setAttribute('xmlns:xsd', 'http://www.w3.org/2001/XMLSchema')
            root.setAttribute('xmlns:xsi', 'http://www.w3.org/2001/XMLSchema-instance')
            doc.appendChild(root)
            for row in (['Series', self.data['Series']], ['Volume', self.data['Volume']],
                        ['Number', self.data['Number']], ['Writer', ', '.join(self.data['Writers'])],
                        ['Penciller', ', '.join(self.data['Pencillers'])], ['Inker', ', '.join(self.data['Inkers'])],
                        ['Colorist', ', '.join(self.data['Colorists'])], ['Summary', self.data['Summary']],
                        ['ScanInformation', 'MCD(' + self.data['MUid'] + ')' if self.data['MUid'] else '']):
                if row[1]:
                    main = doc.createElement(row[0])
                    root.appendChild(main)
                    text = doc.createTextNode(row[1])
                    main.appendChild(text)
            self.rawdata = doc
        if self.source.endswith('.xml'):
            with open(self.source, 'w', encoding='utf-8') as f:
                self.rawdata.writexml(f, encoding='utf-8')
        else:
            workdir = mkdtemp('', 'KCC-')
            tmpXML = os.path.join(workdir, 'ComicInfo.xml')
            with open(tmpXML, 'w', encoding='utf-8') as f:
                self.rawdata.writexml(f, encoding='utf-8')
            try:
                cbx = comicarchive.ComicArchive(self.source)
                cbx.addFile(tmpXML)
            except OSError as e:
                raise UserWarning(e.strerror)
            rmtree(workdir)