# -*- coding: utf-8 -*-

# Copyright(C) 2016      Edouard Lambert
#
# This file is part of weboob.
#
# weboob is free software: you can redistribute it and/or modify
# it under the terms of the GNU Affero General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# weboob is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU Affero General Public License for more details.
#
# You should have received a copy of the GNU Affero General Public License
# along with weboob. If not, see <http://www.gnu.org/licenses/>.

from __future__ import unicode_literals

import re, requests
from io import BytesIO
from decimal import Decimal
from lxml import objectify

from weboob.browser.pages import HTMLPage, XMLPage, RawPage, LoggedPage, pagination, FormNotFound, PartialHTMLPage
from weboob.browser.elements import ItemElement, TableElement, SkipItem, method
from weboob.browser.filters.standard import CleanText, Date, Regexp, Eval, CleanDecimal, Env, Field
from weboob.browser.filters.html import Attr, TableCell
from weboob.capabilities.bank import Account, Investment, Pocket, Transaction
from weboob.capabilities.base import NotAvailable
from weboob.tools.captcha.virtkeyboard import MappedVirtKeyboard
from weboob.exceptions import NoAccountsException, BrowserUnavailable, ActionNeeded, BrowserQuestion, BrowserIncorrectPassword
from weboob.tools.value import Value


def MyDecimal(*args, **kwargs):
    kwargs.update(replace_dots=True, default=NotAvailable)
    return CleanDecimal(*args, **kwargs)


class ErrorPage(HTMLPage):
    def on_load(self):
        raise BrowserUnavailable()


class S2eVirtKeyboard(MappedVirtKeyboard):
    symbols = {'0':('8adee734aaefb163fb008d26bb9b3a42', '922d79345bf824b1186d0aa523b37a7c'),
               '1':('b815d6ce999910d48619b5912b81ddf1', '4730473dcd86f205dff51c59c97cf8c0'),
               '2':('54255a70694787a4e1bd7dd473b50228', '2d8b1ab0b5ce0b88abbc0170d2e85b7e'),
               '3':('ba06373d2bfba937d00bf52a31d475eb', '08e7e7ab7b330f3cfcb819b95eba64c6'),
               '4':('3fa795ac70247922048c514115487b10', 'ffb3d035a3a335cfe32c59d8ee1302ad'),
               '5':('788963d15fa05832ee7640f7c2a21bc3', 'c4b12545020cf87223901b6b35b9a9e2'),
               '6':('c8bf62dfaed9feeb86934d8617182503', '473357666949855a0794f68f3fc40127'),
               '7':('f7543fdda3039bdd383531954dd4fc46', '5f3a71bd2f696b8dc835dfeb7f32f92a'),
               '8':('5c4210e2d8e39f7667d7a9e5534b18b7', 'b9a1a73430f724541108ed5dd862431b'),
               '9':('94520ac801883fbfb700f43cd4172d41', '12c18ca3d4350acd077f557ac74161e5'),
              }

    color = (0, 0, 0)

    def __init__(self, page, vkid):
        img = page.doc.find('//img[@id="clavier_virtuel"]')
        res = page.browser.open("/portal/rest/clavier_virtuel/%s" % vkid)
        MappedVirtKeyboard.__init__(self, BytesIO(res.content), page.doc, img, self.color, convert='RGB')
        self.check_symbols(self.symbols, None)

    def get_symbol_code(self, md5sum):
        code = MappedVirtKeyboard.get_symbol_code(self, md5sum)
        m = re.search('(\d+)', code)
        if m:
            return m.group(1)

    def get_string_code(self, string):
        return ''.join([self.get_symbol_code(self.symbols[c]) for c in string])


class BrowserIncorrectAuthenticationCode(BrowserIncorrectPassword):
    pass


class LoginErrorPage(PartialHTMLPage):
    pass


class LoginPage(HTMLPage):
    def get_password(self, password, secret):
        vkid = Attr('//input[@id="identifiantClavierVirtuel"]', 'value')(self.doc)
        code = S2eVirtKeyboard(self, vkid).get_string_code(password)
        tcc = Attr('//input[@id="codeTCC"]', 'value')(self.doc)
        password = "%s|%s|#%s#" % (code, vkid, tcc)
        if secret:
            password = "%s%s" % (password, secret)
        return password

    def login(self, login, password, secret):
        form = self.get_form(id="formulaireEnvoi")
        device_print = '''{"screen":{"screenWidth":500,"screenHeight":500,"screenColourDepth":24},"timezone":{"timezone":-60},"plugins":{"installedPlugins":""},"fonts":{"installedFonts":"cursive;monospace;serif;sans-serif;fantasy;default;Arial;Courier;Courier New;Gentium;Times;Times New Roman;"},"userAgent":"Mozilla/5.0 (Linux; Android 6.0; Nexus 5 Build/MRA58N) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/60.0.3112.78 Mobile Safari/537.36","appName":"Netscape","appCodeName":"Mozilla","appVersion":"5.0 (Linux; Android 6.0; Nexus 5 Build/MRA58N) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/60.0.3112.78 Mobile Safari/537.36","platform":"Linux x86_64","product":"Gecko","productSub":"20030107","vendor":"Google Inc.","language":"en-US"}'''
        form['password'] = self.get_password(password, secret) + device_print
        form['username'] = login
        form['devicePrint'] = device_print
        form.submit()

    def get_error(self):
        cgu = CleanText('//h1[contains(text(), "Conditions")]', default=None)(self.doc)
        if cgu:
            cgu = u"Veuillez accepter les conditions générales d'utilisation." if self.browser.LANG == "fr" \
               else "Please accept the general conditions of use." if self.browser.LANG == 'en' \
               else cgu
        return cgu or CleanText('//div[contains(text(), "Erreur")]', default='')(self.doc)

    def send_otp(self, otp):
        try:
            form = self.get_form(xpath='//form[.//div[has-class("authentification-bloc-content-btn-bloc")]]',
                                submit='//div[has-class("authentification-bloc-content-btn-bloc")]//input[@type="submit"]')
        except FormNotFound:
            form = self.get_form(xpath='//form[.//div[contains(@class, "otp")]]')
            input_validate = (Attr('//a[.//span[contains(text(), "VALIDATE")]]', 'onclick', default=None)(self.doc) or
                              Attr('//a[.//span[contains(text(), "Confirm")]]', 'onclick')(self.doc))
            m = re.search(r"{\\'([^\\]+)\\':\\'([^\\]+)\\'}", input_validate)
            form[m.group(1)] = m.group(2)
            form.pop('pb12876:j_idt3:j_idt158:j_idt159:j_idt244:j_idt273', None)

        for k in form:
            if 'need help' in form[k].lower():
                del form[k]
                break


        input_otp = Attr('//input[contains(@id, "otp")]', 'id')(self.doc)
        input_id = Attr('//input[@type="checkbox"]', 'id')(self.doc)
        form[input_otp] = otp
        form[input_id] = 'on'
        form.submit()

    def check_error(self):
        if bool(self.doc.xpath('//span[@class="operation-bloc-content-message-erreur-text"][contains(text(), "est incorrect")]')) or \
           bool(self.doc.xpath('//span[@class="operation-bloc-content-message-erreur-text"][contains(text(), "is incorrect")]')):
            raise BrowserIncorrectAuthenticationCode('Invalid OTP')
        elif bool(self.doc.xpath('//span[@class="operation-bloc-content-message-erreur-text"][contains(text(), "Technical error")]')):
            raise BrowserUnavailable()

    def on_load(self):
        receive_code_btn = bool(self.doc.xpath('//div[has-class("authentification-bloc-content-btn-bloc")][count(input)=1]'))
        submit_input = self.doc.xpath('//input[@type="submit"]')
        if receive_code_btn and len(submit_input) == 1:
            form = self.get_form(xpath='//form[.//div[has-class("authentification-bloc-content-btn-bloc")][count(input)=1]]',
                                 submit='//div[has-class("authentification-bloc-content-btn-bloc")]//input[@type="submit"]')

            # sending mail with code
            form.submit()
            raise BrowserQuestion(Value('otp', label=u'Veuillez saisir votre code de sécurité (reçu par mail ou par sms)'))

        send_code_form = bool(self.doc.xpath('//form[.//div[has-class("authentification-bloc-content-btn-bloc")]]'))
        # TODO move this code in browser
        otp = self.browser.config['otp'].get() if 'otp' in self.browser.config else None
        if send_code_form and otp:
            self.check_error()
            self.send_otp(otp)


class LandingPage(LoggedPage, HTMLPage):
    pass


# AMF codes
class AMFHSBCPage(XMLPage):
    ENCODING = "UTF-8"
    CODE_TYPE = Investment.CODE_TYPE_AMF

    def build_doc(self, content):
        doc = super(AMFHSBCPage, self).build_doc(content).getroot()
        # Remove namespaces
        for el in doc.getiterator():
            if not hasattr(el.tag, 'find'):
                continue
            i = el.tag.find('}')
            if i >= 0:
                el.tag = el.tag[i+1:]
        objectify.deannotate(doc, cleanup_namespaces=True)
        return doc

    def get_code(self):
        return CleanText('//AMF_Code', default=NotAvailable)(self.doc)


class AMFAmundiPage(HTMLPage):
    CODE_TYPE = Investment.CODE_TYPE_AMF

    def get_code(self):
        return CleanText('//span[contains(., "(C)")]', default=NotAvailable)(self.doc)


class AMFSGPage(HTMLPage):
    CODE_TYPE = Investment.CODE_TYPE_AMF

    def get_code(self):
        return CleanText('//div[@id="header_code"]', default=NotAvailable)(self.doc)

    def build_doc(self, data):
        if not data.strip():
            # sometimes the page is totally blank... prevent an XMLSyntaxError
            data = b'<html></html>'
        return super(AMFSGPage, self).build_doc(data)


class LyxorfcpePage(LoggedPage, HTMLPage):
    CODE_TYPE = Investment.CODE_TYPE_ISIN

    def get_code(self):
        return Regexp(CleanText('//span[@class="isin"]'), 'Code ISIN : (.*)')(self.doc)


class EcofiPage(LoggedPage, HTMLPage):
    CODE_TYPE = Investment.CODE_TYPE_ISIN

    def get_code(self):
        return CleanText('//div[has-class("field-name-CodeISIN")]/div[@class="field-items"]')(self.doc)


class EcofiDummyPage(LoggedPage, RawPage):
    pass


class ItemInvestment(ItemElement):
    klass = Investment

    obj_unitvalue = Env('unitvalue')
    obj_vdate = Env('vdate')
    obj_code = Env('code')
    obj_code_type = Env('code_type')

    def obj_label(self):
        return CleanText(TableCell('label')(self)[0].xpath('.//div[contains(@style, \
            "text-align")][1]'))(self)

    def obj_valuation(self):
        return MyDecimal(TableCell('valuation')(self)[0].xpath('.//div[not(.//div)]'))(self)

    def parse(self, el):
        # Trying to find vdate and unitvalue
        unitvalue, vdate = None, None
        for span in TableCell('label')(self)[0].xpath('.//span'):
            if unitvalue is None:
                unitvalue = Regexp(CleanText('.'), '^([\d,]+)$', default=None)(span)
            if vdate is None:
                vdate = None if any(x in CleanText('./parent::div')(span) for x in [u"échéance", "Maturity"]) else \
                        Regexp(CleanText('.'), '^([\d\/]+)$', default=None)(span)
        self.env['unitvalue'] = MyDecimal().filter(unitvalue) if unitvalue else NotAvailable
        self.env['vdate'] = Date(dayfirst=True).filter(vdate) if vdate else NotAvailable

        page = None
        link_id = Attr(u'.//a[contains(@title, "détail du fonds")]', 'id', default=None)(self)
        inv_id = Attr('.//a[contains(@id, "linkpdf")]', 'id', default=None)(self)

        if link_id and inv_id:
            form = self.page.get_form('//div[@id="operation"]//form')
            form['idFonds'] = inv_id.split('-', 1)[-1]
            form['org.richfaces.ajax.component'] = form[link_id] = link_id

            page = self.page.browser.open(form['javax.faces.encodedURL'], data=dict(form)).page

            if "hsbc.fr" in self.page.browser.BASEURL: # special space for HSBC
                m = re.search('fundid=(\w+).+SH=(\w+)', CleanText('//complete', default="")(page.doc))

                if m: # had to put full url to skip redirections.
                    page = page.browser.open('https://www.assetmanagement.hsbc.com/feedRequest?feed_data=gfcFundData&cod=FR&client=FCPE&fId=%s&SH=%s&lId=fr' % m.groups()).page
            elif "consulteroperations" not in self.page.browser.url: # not on history
                url = Regexp(CleanText('//complete'), r"openUrlFichesFonds\('(.*?)'\)", default=NotAvailable)(page.doc)
                if url is NotAvailable:
                    # redirection to a useless graphplot page with url like /portal/salarie-sg/fichefonds?idFonds=XXX&source=/portal/salarie-sg/monepargne/mesavoirs
                    assert CleanText('//redirect/@url')(page.doc)
                    self.env['code'] = NotAvailable
                    self.env['code_type'] = NotAvailable
                    return

                if url.startswith('http://docfinder.is.bnpparibas-ip.com/'):
                    # pdf... http://docfinder.is.bnpparibas-ip.com/api/files/040d05b3-1776-4991-aa49-f0cd8717dab8/1536
                    self.env['code'] = NotAvailable
                    self.env['code_type'] = NotAvailable
                    return

                match = re.match(r'http://www.cpr-am.fr/fr/fonds_detail.php\?isin=([A-Z0-9]+)', url)
                match = match or re.match(r'http://www.cpr-am.fr/particuliers/product/view/([A-Z0-9]+)', url)
                if match:
                    self.env['code'] = match.group(1)
                    self.env['code_type'] = Investment.CODE_TYPE_ISIN
                    return

                if url.startswith('http://fr.swisslife-am.com/fr/'):
                    self.page.browser.session.cookies.set('location', 'fr')
                    self.page.browser.session.cookies.set('prof', 'undefined')

                page = self.page.browser.open(url).page

        try:
            self.env['code'] = page.get_code()
            self.env['code_type'] = page.CODE_TYPE
        # Handle page is None and page has not get_code method
        except AttributeError:
            self.env['code'] = NotAvailable
            self.env['code_type'] = NotAvailable


class MultiPage(HTMLPage):
    def get_multi(self):
        return [Attr('.', 'value')(option) for option in \
            self.doc.xpath('//select[@class="ComboEntreprise"]/option')]

    def go_multi(self, id):
        if Attr('//select[@class="ComboEntreprise"]/option[@selected]', 'value')(self.doc) != id:
            form = self.get_form('//select[@class="ComboEntreprise"]/ancestor::form[1]')
            key = [k for k, v in dict(form).items() if "SelectItems" in k][0]
            form[key] = id
            form['javax.faces.source'] = key
            form.submit()


class AccountsPage(LoggedPage, MultiPage):
    def on_load(self):
        no_accounts_message = CleanText('//span[contains(text(), "On this date, you still have no employee savings in this company.")] | '
                        '//span[contains(text(), "On this date, you do not yet have any employee savings in this company.")] | '
                        '//span[contains(text(), "On this date, you no longer have any employee savings in this company.")] | '
                        '//p[contains(text(), "You no longer have any employee savings.")]')(self.doc)
        if no_accounts_message:
            raise NoAccountsException(no_accounts_message)

        if CleanText('//a//span[contains(text(), "J\'ACCEPTE LES CONDITIONS GENERALES D\'UTILISATION") or'
                     '          contains(text(), "I ACCEPT THE GENERAL CONDITIONS OF USE")]')(self.doc):
            raise ActionNeeded("Veuillez valider les conditions générales d'utilisation")

    TYPES = {
        'PEE': Account.TYPE_PEE,
        'PEI': Account.TYPE_PEE,
        'PEEG': Account.TYPE_PEE,
        'PEG': Account.TYPE_PEE,
        'PLAN': Account.TYPE_PEE,
        'PERCO': Account.TYPE_PERCO,
        'PERCOI': Account.TYPE_PERCO,
        'SWISS': Account.TYPE_MARKET,
        'RSP': Account.TYPE_RSP,
    }

    CONDITIONS = {
        u'disponible': Pocket.CONDITION_AVAILABLE,
        u'épargne': Pocket.CONDITION_AVAILABLE,
        u'available': Pocket.CONDITION_AVAILABLE,
        u'withdrawal': Pocket.CONDITION_RETIREMENT,
        u'retraite': Pocket.CONDITION_RETIREMENT,
    }

    @method
    class iter_accounts(TableElement):
        item_xpath = '//div[contains(@id, "Dispositif")]//table/tbody/tr[td[2]]'
        head_xpath = '//div[contains(@id, "Dispositif")]//table/thead/tr/th'

        col_label = [u'My schemes', u'Mes dispositifs']
        col_balance = [re.compile(u'Total'), re.compile(u'Montant')]

        class item(ItemElement):
            klass = Account

            obj_id = Env('id')
            obj_label = Env('label')

            def obj_type(self):
                return self.page.TYPES.get(Field('label')(self).split()[0].upper(), Account.TYPE_UNKNOWN)

            def obj_balance(self):
                return MyDecimal(TableCell('balance')(self)[0].xpath('.//div[has-class("nowrap")]'))(self)

            def obj_currency(self):
                return Account.get_currency(CleanText(TableCell('balance')(self)[0].xpath('.//div[has-class("nowrap")]'))(self))

            def parse(self, el):
                id, label = CleanText(TableCell('label'))(self).split(' ', 1)
                self.env['id'] = id
                self.env['label'] = label

    def get_investment_pages(self, accid, valuation=True, pocket=False):
        form = self.get_form('//div[@id="operation"]//form')
        div_xpath = '//div[contains(@id, "%s")]' % ("detailParSupportEtDate" if pocket else "ongletDetailParSupport")
        input_id = Attr('//input[contains(@id, "onglets")]', 'name')(self.doc)
        select_id = Attr('%s//select' % div_xpath, 'id')(self.doc)
        form[select_id] = Attr('//option[contains(text(), "%s")]' % accid, 'value')(self.doc)
        form[input_id] = "onglet4" if pocket else "onglet2"
        # Select display : amount or quantity
        radio_txt = ("En montant" if valuation else [u"Quantité", "En parts"]) if self.browser.LANG == "fr" else \
                    ("In amount" if valuation else ["Quantity", "In units"])
        if isinstance(radio_txt, list):
            radio_txt = '" or text()="'.join(radio_txt)
        input_id = Regexp(Attr('%s//span[text()="%s"]/preceding-sibling::a[1]' \
            % (div_xpath, radio_txt), 'onclick'), '"([^"]+)')(self.doc)
        form[input_id] = input_id
        form['javax.faces.source'] = input_id
        if pocket:
            form['visualisationMontant'] = "true" if valuation else "false"
        else:
            form['valorisationMontant'] = "true" if valuation else "false"
        data = {k: v for k, v in dict(form).items() if "blocages" not in v}
        self.browser.location(form.url, data=data)

    @method
    class iter_investment(TableElement):
        item_xpath = '//div[contains(@id, "ongletDetailParSupport")]//table/tbody/tr[td[4]]'
        head_xpath = '//div[contains(@id, "ongletDetailParSupport")]//table/thead/tr/th'

        col_label = [re.compile(u'My investment'), re.compile(u'Mes supports')]
        col_valuation = [re.compile(u'Gross amount'), re.compile(u'Montant brut')]
        col_portfolio_share = [u'Distribution', u'Répartition']
        col_diff = [u'+ or - potential value', u'+ ou - value potentielle']

        class item(ItemInvestment):
            def obj_id(self):
                return

            def obj_diff(self):
                td = TableCell('diff', default=None)(self)
                return MyDecimal('.//div[not(.//div)]')(td[0]) if td else NotAvailable

            def obj_portfolio_share(self):
                return Eval(lambda x: x / 100, MyDecimal(TableCell('portfolio_share')(self)[0] \
                    .xpath('.//div[has-class("nowrap")]'))(self))(self)

    def update_invs_quantity(self, invs):
        for inv in invs:
            inv.quantity = MyDecimal().filter(CleanText('//div[contains(@id, "ongletDetailParSupport")] \
                       //tr[.//div[contains(replace(text(), "\xa0", " "), "%s")]]/td[last()]//div/text()' % inv.label)(self.doc))
        return invs

    @method
    class iter_pocket(TableElement):
        item_xpath = '//div[contains(@id, "detailParSupportEtDate")]//table/tbody[@class="rf-cst"]/tr[td[4]]'
        head_xpath = '//div[contains(@id, "detailParSupportEtDate")]//table/thead/tr/th'

        col_amount = [re.compile(u'Gross amount'), re.compile(u'Montant brut')]
        col_availability = [u'Availability date', u'Date de disponibilité']

        class item(ItemElement):
            klass = Pocket

            obj_availability_date = Env('availability_date')
            obj_condition = Env('condition')
            obj__matching_txt = Env('matching_txt')

            def obj_amount(self):
                return MyDecimal(TableCell('amount')(self)[0].xpath('.//div[has-class("nowrap")]'))(self)

            def obj_investment(self):
                investment = None
                for inv in self.page.browser.cache['invs'][Env('accid')(self)]:
                    if inv.label in CleanText('./parent::tbody/preceding-sibling::tbody[1]')(self):
                        investment = inv
                assert investment is not None
                return investment

            def parse(self, el):
                txt = CleanText(TableCell('availability')(self)[0].xpath('./span'))(self)
                self.env['availability_date'] = Date(dayfirst=True, default=NotAvailable).filter(txt)
                self.env['condition'] = Pocket.CONDITION_DATE if self.env['availability_date'] else \
                                        self.page.CONDITIONS.get(txt.lower().split()[0], Pocket.CONDITION_UNKNOWN)
                self.env['matching_txt'] = txt

    def update_pockets_quantity(self, pockets):
        for pocket in pockets:
            # not so pretty
            pocket.quantity = MyDecimal(CleanText('//div[contains(@id, "detailParSupportEtDate")] \
                //tbody[.//div[contains(replace(text(), "\xa0", " "), "%s")]]/following-sibling::tbody[1]//tr[.//span[contains(text(), \
                "%s")]]/td[last()]//div/text()' % (pocket.investment.label, pocket._matching_txt)))(self.doc)
        return pockets


class HistoryPage(LoggedPage, MultiPage):
    XPATH_FORM = '//div[@id="operation"]//form'

    def get_history_form(self, idt, args={}):
        form = self.get_form(self.XPATH_FORM)
        form[idt] = idt
        form['javax.faces.source'] = idt
        form.update(args)
        return form

    def show_more(self, nb):
        form = self.get_form(self.XPATH_FORM)
        for select in self.doc.xpath('//select'):
            if Attr('./option[@selected]', 'value')(select) == nb:
                return
            idt = Attr('.', 'id')(select)
            form[idt] = nb
            if 'javax.faces.source' not in form:
                form['javax.faces.source'] = idt
        form.submit()

    def go_start(self):
        idt = Attr('//a[@title="debut" or @title="precedent"]', 'id', default=None)(self.doc)
        if idt:
            form = self.get_history_form(idt)
            form.submit()

    @method
    class get_investments(TableElement):
        item_xpath = '//table//table/tbody/tr[td[4]]'
        head_xpath = '//table//table/thead/tr/th'

        col_scheme = [u'Scheme', u'Dispositif']
        col_label = [re.compile(u'Investment'), re.compile('My investment'), u'fund', re.compile(u'Support')]
        col_quantity = [re.compile(u'Quantity'), re.compile(u'Quantité'), re.compile('En parts')]
        col_valuation = [u'Gross amount', u'Net amount', re.compile(u'Montant brut'), u'Montant Net']

        class item(ItemInvestment):
            def obj_quantity(self):
                return MyDecimal(TableCell('quantity')(self)[0].xpath('./text()'))(self)

            def condition(self):
                return Env('accid')(self) in CleanText(TableCell('scheme'))(self)

    @pagination
    @method
    class iter_history(TableElement):
        item_xpath = '//table/tbody/tr[td[4]]'
        head_xpath = '//table/thead/tr/th'

        col_id = [re.compile(u'Ref'), re.compile(u'Réf')]
        col_date = [re.compile(u'Date'), re.compile('Creation date')]
        col_label = [re.compile('Transaction'), re.compile(u'Type')]

        def next_page(self):
            idt = Attr('//a[@title="suivant"]', 'id', default=None)(self.page.doc)
            if idt:
                form = self.page.get_history_form(idt)
                return requests.Request("POST", form.url, data=dict(form))

        class item(ItemElement):
            klass = Transaction

            obj_id = CleanText(TableCell('id'))
            obj_label = CleanText(TableCell('label'))
            obj_type = Transaction.TYPE_BANK
            obj_date = Date(CleanText(TableCell('date')), dayfirst=True)
            obj_amount = Env('amount')
            obj_investments = Env('investments')

            def parse(self, el):
                # We have only one history for all accounts...
                # And we know only on details page if it match current account.
                trid = CleanText(TableCell('id'))(self)
                if trid not in self.page.browser.cache['details']:
                    # Thanks to stateful website : first go on details page...
                    idt = Attr(TableCell('id')(self)[0].xpath('./a'), 'id', default=None)(self)
                    typeop = Regexp(Attr(TableCell('id')(self)[0].xpath('./a'), 'onclick'), 'Operation.+?([A-Z_]+)')(self)
                    form = self.page.get_history_form(idt, {'referenceOp': trid, 'typeOperation': typeop})
                    page = self.page.browser.open(form.url, data=dict(form)).page
                    self.page.browser.cache['details'][trid] = page
                    # ...then go back to history list.
                    idt = Attr('//input[@title="Retour"]', 'id', default=None)(page.doc)
                    form = self.page.get_history_form(idt)
                    self.page.browser.open(form.url, data=dict(form)).page
                else:
                    page = self.page.browser.cache['details'][trid]

                # Check if page is related to the account
                if not len(page.doc.xpath('//td[contains(text(), $id)]', id=Env('accid')(self))):
                    raise SkipItem()

                self.env['investments'] = list(page.get_investments(accid=Env('accid')(self)))
                self.env['amount'] = sum([i.valuation or Decimal('0') for i in self.env['investments']])


class SwissLifePage(HTMLPage):
    CODE_TYPE = Investment.CODE_TYPE_ISIN

    def get_code(self):
        code = CleanText('//span[contains(text(), "Code ISIN")]/following-sibling::span[@class="data"]', default=NotAvailable)(self.doc)
        if code == "n/a":
            return NotAvailable
        return code
