# -*- coding: utf-8 -*-
#!/usr/bin/env python
#
# Gramps - a GTK+/GNOME based genealogy program
#
# Copyright (C) 2000-2007  Donald N. Allingham
# Copyright (C) 2007       Johan Gonqvist <johan.gronqvist@gmail.com>
# Copyright (C) 2007-2009  Gary Burton <gary.burton@zen.co.uk>
# Copyright (C) 2007-2009  Stephane Charette <stephanecharette@gmail.com>
# Copyright (C) 2008-2009  Brian G. Matherly
# Copyright (C) 2008       Jason M. Simanek <jason@bohemianalps.com>
# Copyright (C) 2008-2011  Rob G. Healey <robhealey1@gmail.com>
# Copyright (C) 2010       Doug Blank <doug.blank@gmail.com>
# Copyright (C) 2010       Jakim Friant
# Copyright (C) 2010-      Serge Noiraud
# Copyright (C) 2011       Tim G L Lyons
# Copyright (C) 2013       Benny Malengier
# Copyright (C) 2016       Allen Crider
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program 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 General Public License for more details.
#
# You should have received a copy of the GNU General Public License along
# with this program; if not, see <https://www.gnu.org/licenses/>.
#

"""
Narrative Web Page generator.

Classe:
    SurnameListPage - Index for first letters of surname
"""

# ------------------------------------------------
# python modules
# ------------------------------------------------
from decimal import getcontext
import logging
from collections import defaultdict
from unicodedata import name as uniname

# ------------------------------------------------
# Gramps module
# ------------------------------------------------
from gramps.gen.const import GRAMPS_LOCALE as glocale
from gramps.plugins.lib.libhtml import Html

# ------------------------------------------------
# specific narrative web import
# ------------------------------------------------
from gramps.plugins.webreport.basepage import BasePage
from gramps.gen.display.name import displayer as _nd
from gramps.plugins.webreport.common import (
    alphabet_navigation,
    html_escape,
    name_to_md5,
    FULLCLEAR,
    get_surname_from_person,
    AlphabeticIndex,
)

_ = glocale.translation.sgettext
LOG = logging.getLogger(".NarrativeWeb")
getcontext().prec = 8


#################################################
#
#    Creates the Surname List page
#
#################################################
class SurnameListPage(BasePage):
    """
    This class is responsible for displaying the list of Surnames
    """

    ORDER_BY_NAME = 0
    ORDER_BY_COUNT = 1

    def __init__(
        self,
        report,
        the_lang,
        the_title,
        ppl_handle_list,
        order_by=ORDER_BY_NAME,
        filename="surnames",
    ):
        """
        @param: report          -- The instance of the main report class for
                                   this report
        @param: the_lang        -- The lang to process
        @param: the_title       -- The title page related to the language
        @param: ppl_handle_list -- The list of people for whom we need to create
                                   a page.
        @param: order_by        -- The way to sort surnames :
                                   Surnames or Surnames count
        @param: filename        -- The name to use for the Surnames page
        """
        BasePage.__init__(self, report, the_lang, the_title)

        if order_by == self.ORDER_BY_NAME:
            output_file, sio = self.report.create_file(filename)
            result = self.write_header(self._("Surnames"))
        else:
            output_file, sio = self.report.create_file("surnames_count")
            result = self.write_header(self._("Surnames by person count"))
        surnamelistpage, dummy_head, dummy_body, outerwrapper = result

        # begin surnames division
        with Html("div", class_="content", id="surnames") as surnamelist:
            outerwrapper += surnamelist

            # page message
            msg = self._(
                "This page contains an index of all the "
                "surnames in the database. Selecting a link "
                "will lead to a list of individuals in the "
                "database with this same surname."
            )
            surnamelist += Html("p", msg, id="description")

            # Assemble all the handles for each surname into a dictionary
            # We don't call sort_people because we don't care about sorting
            # individuals, only surnames
            surname_handle_dict = defaultdict(list)
            for person_handle in ppl_handle_list:
                person = self.r_db.get_person_from_handle(person_handle)
                surname = get_surname_from_person(self.r_db, person)
                surname_handle_dict[surname].append(person_handle)

            # add alphabet navigation...
            # only if surname list not surname count
            if order_by == self.ORDER_BY_NAME:
                # Assemble the AlphabeticIndex
                index = AlphabeticIndex(self.rlocale)
                for surname, handle_list in surname_handle_dict.items():
                    index.addRecord(surname, handle_list)

                # Extract the buckets from the index
                index_list = []
                index.resetBucketIterator()
                while index.nextBucket():
                    if index.bucketRecordCount != 0:
                        index_list.append(index.bucketLabel)
                # Output the navigation
                alpha_nav = alphabet_navigation(index_list, self.rlocale, rtl=self.dir)
                if alpha_nav is not None:
                    surnamelist += alpha_nav

            if order_by == self.ORDER_BY_COUNT:
                table_id = "SortByCount"
            else:
                table_id = "SortByName"

            # begin surnamelist table and table head
            with Html(
                "table",
                class_="infolist primobjlist surnamelist " + self.dir,
                id=table_id,
            ) as table:
                surnamelist += table

                thead = Html("thead")
                table += thead

                trow = Html("tr")
                thead += trow

                trow += Html("th", self._("Letter"), class_="ColumnLetter", inline=True)

                # create table header surname hyperlink
                fname = self.report.surname_fname + self.ext
                tcell = Html("th", class_="ColumnSurname", inline=True)
                trow += tcell
                hyper = Html(
                    "a", self._("Surname"), href=fname, title=self._("Surnames")
                )
                tcell += hyper

                # create table header number of people hyperlink
                fname = "surnames_count" + self.ext
                tcell = Html("th", class_="ColumnQuantity", inline=True)
                trow += tcell
                num_people = self._("Number of People")
                hyper = Html("a", num_people, href=fname, title=num_people)
                tcell += hyper

                name_format = self.report.options["name_format"]
                # begin table body
                with Html("tbody") as tbody:
                    table += tbody

                    if order_by == self.ORDER_BY_COUNT:
                        # construct a dictionary of counts, for example
                        # {3: ["brown", [handle1, handle2,handle3],
                        #      "smith", [handle4, handle5, handle6]
                        #     ],
                        #  2: ["Jones", [handle7]
                        #
                        # }]
                        count_ppl_handle_dict = defaultdict(list)
                        for surname, data_list in surname_handle_dict.items():
                            count_ppl_handle_dict[len(data_list)].append(
                                (surname, data_list)
                            )
                        # For each count, we construct and output a separate
                        # AlphabeticIndex for all surnames with that count
                        for dummy_count, ppl_handles in sorted(
                            count_ppl_handle_dict.items(), reverse=True
                        ):
                            # Construct the AplhabeticIndex for that count
                            index = AlphabeticIndex(self.rlocale)
                            for surname, handle_list in ppl_handles:
                                index.addRecord(surname, handle_list)
                            # Output the AlphabeticIndex for that count
                            self.output_surname_records(index, tbody, name_format)

                    else:  # order_by == self.ORDER_BY_NAME
                        # The AlphabeticIndex has already been constructed
                        # Output the AlphabeticIndex
                        self.output_surname_records(index, tbody, name_format)

        # create footer section
        # add clearline for proper styling
        footer = self.write_footer(None)
        outerwrapper += (FULLCLEAR, footer)

        # send page out for processing
        # and close the file
        self.xhtml_writer(
            surnamelistpage, output_file, sio, 0
        )  # 0 => current date modification

    def surname_link(self, fname, name, opt_val=None, uplink=False):
        """
        Create a link to the surname page.

        @param: fname   -- Path to the file name
        @param: name    -- Name to see in the link
        @param: opt_val -- Option value to use
        @param: uplink  -- If True, then "../../../" is inserted in front of
                           the result.
        """
        url = self.report.build_url_fname_html(fname, "srn", uplink)
        try:  # some characters don't have a unicode name
            char = uniname(name[0])
        except (ValueError, TypeError) as dummy_err:
            char = " "
        hyper = Html(
            "a",
            html_escape(name),
            href=url,
            title="%s starting with %s" % (name, char),
            inline=True,
        )
        if opt_val is not None:
            hyper += opt_val

        # return hyperlink to its caller
        return hyper

    def output_surname_records(self, index, tbody, name_format):
        """
        Output all the surnames in the index.

        @param: index   -- An ICU AlphabeticIndex where the names are surnames
                           and the data is a list of people handles with that
                           surname
        @param: tbody   -- The HTML body to which the lines are added
        @param: name_format -- The name format from the report options
        """
        index.resetBucketIterator()
        output = []
        dup_index = 0
        while index.nextBucket():
            if index.bucketRecordCount != 0:
                trow = Html("tr")
                tbody += trow

                tcell = Html("td", class_="ColumnLetter", inline=True)
                trow += tcell
                trow.attr = 'class = "BeginLetter"'
                bucket_letter = index.bucketLabel
                bucket_link = bucket_letter
                if bucket_letter in output:
                    bucket_link = "%s (%i)" % (bucket_letter, dup_index)
                    dup_index += 1
                output.append(bucket_letter)
                try:  # some characters don't have a unicode name
                    char = uniname(bucket_letter)
                except (ValueError, TypeError) as dummy_err:
                    char = " "
                ttle = self._(
                    "Surnames beginning with letter '{letter}' {char}"
                ).format(
                    letter=bucket_letter,
                    char=char,
                )
                hyper = Html(
                    "a",
                    index.bucketLabel,
                    name=index.bucketLabel,
                    id_=bucket_link,
                    title=ttle,
                )
                tcell += hyper

                first = True
                while index.nextRecord():
                    surname = index.recordName
                    if not first:
                        trow = Html("tr")
                        tbody += trow

                        tcell = Html("td", class_="ColumnLetter", inline=True)
                        trow += tcell
                    first = False
                    if not surname or surname.isspace():
                        surname = self._("<absent>")
                    # In case the user choose a format name like "*SURNAME*"
                    # We must display this field in upper case. So we use
                    # the english format of format_name to find if this is
                    # the case.
                    # name_format = self.report.options['name_format']
                    nme_format = _nd.name_formats[name_format][1]
                    if "SURNAME" in nme_format:
                        surnamed = surname.upper()
                    else:
                        surnamed = surname
                    trow += Html(
                        "td",
                        self.surname_link(name_to_md5(surname), surnamed),
                        class_="ColumnSurname",
                        inline=True,
                    )

                    trow += Html(
                        "td",
                        len(index.recordData),
                        class_="ColumnQuantity",
                        inline=True,
                    )
