# Author: Julien Coux
# Copyright 2016 Camptocamp SA
# License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl.html).
from odoo import models


class AbstractReportXslx(models.AbstractModel):
    _name = "report.account_financial_report.abstract_report_xlsx"
    _description = "Abstract XLSX Account Financial Report"
    _inherit = "report.report_xlsx.abstract"

    def __init__(self, pool, cr):
        # main sheet which will contains report
        self.sheet = None

        # columns of the report
        self.columns = None

        # row_pos must be incremented at each writing lines
        self.row_pos = None

        # Formats
        self.format_right = None
        self.format_left = None
        self.format_right_bold_italic = None
        self.format_bold = None
        self.format_header_left = None
        self.format_header_center = None
        self.format_header_right = None
        self.format_header_amount = None
        self.format_amount = None
        self.format_percent_bold_italic = None

    def get_workbook_options(self):
        return {"constant_memory": True}

    def generate_xlsx_report(self, workbook, data, objects):
        report = objects

        self.row_pos = 0

        self._define_formats(workbook, data)

        report_name = self._get_report_name(report, data=data)
        report_footer = self._get_report_footer()
        filters = self._get_report_filters(report)
        self.columns = self._get_report_columns(report)
        self.workbook = workbook
        self.sheet = workbook.add_worksheet(report_name[:31])

        self._set_column_width()

        self._write_report_title(report_name)

        self._write_filters(filters)

        self._generate_report_content(workbook, report, data)

        self._write_report_footer(report_footer)

    def _define_formats(self, workbook, data):
        """ Add cell formats to current workbook.
        Those formats can be used on all cell.
        Available formats are :
         * format_bold
         * format_right
         * format_right_bold_italic
         * format_header_left
         * format_header_center
         * format_header_right
         * format_header_amount
         * format_amount
         * format_percent_bold_italic
        """
        self.format_bold = workbook.add_format({"bold": True})
        self.format_right = workbook.add_format({"align": "right"})
        self.format_left = workbook.add_format({"align": "left"})
        self.format_right_bold_italic = workbook.add_format(
            {"align": "right", "bold": True, "italic": True}
        )
        self.format_header_left = workbook.add_format(
            {"bold": True, "border": True, "bg_color": "#FFFFCC"}
        )
        self.format_header_center = workbook.add_format(
            {"bold": True, "align": "center", "border": True, "bg_color": "#FFFFCC"}
        )
        self.format_header_right = workbook.add_format(
            {"bold": True, "align": "right", "border": True, "bg_color": "#FFFFCC"}
        )
        self.format_header_amount = workbook.add_format(
            {"bold": True, "border": True, "bg_color": "#FFFFCC"}
        )
        company_id = data.get("company_id", False)
        if company_id:
            company = self.env["res.company"].browse(company_id)
            currency = company.currency_id
        else:
            currency = self.env["res.company"]._get_user_currency()
        self.format_header_amount.set_num_format(
            "#,##0." + "0" * currency.decimal_places
        )
        self.format_amount = workbook.add_format()
        self.format_amount.set_num_format("#,##0." + "0" * currency.decimal_places)
        self.format_amount_bold = workbook.add_format({"bold": True})
        self.format_amount_bold.set_num_format("#,##0." + "0" * currency.decimal_places)
        self.format_percent_bold_italic = workbook.add_format(
            {"bold": True, "italic": True}
        )
        self.format_percent_bold_italic.set_num_format("#,##0.00%")

    def _set_column_width(self):
        """Set width for all defined columns.
        Columns are defined with `_get_report_columns` method.
        """
        for position, column in self.columns.items():
            self.sheet.set_column(position, position, column["width"])

    def _write_report_title(self, title):
        """Write report title on current line using all defined columns width.
        Columns are defined with `_get_report_columns` method.
        """
        self.sheet.merge_range(
            self.row_pos,
            0,
            self.row_pos,
            len(self.columns) - 1,
            title,
            self.format_bold,
        )
        self.row_pos += 3

    def _write_report_footer(self, footer):
        """Write report footer .
        Columns are defined with `_get_report_columns` method.
        """
        if footer:
            self.row_pos += 1
            self.sheet.merge_range(
                self.row_pos,
                0,
                self.row_pos,
                len(self.columns) - 1,
                footer,
                self.format_left,
            )
            self.row_pos += 1

    def _write_filters(self, filters):
        """Write one line per filters on starting on current line.
        Columns number for filter name is defined
        with `_get_col_count_filter_name` method.
        Columns number for filter value is define
        with `_get_col_count_filter_value` method.
        """
        col_name = 1
        col_count_filter_name = self._get_col_count_filter_name()
        col_count_filter_value = self._get_col_count_filter_value()
        col_value = col_name + col_count_filter_name + 1
        for title, value in filters:
            self.sheet.merge_range(
                self.row_pos,
                col_name,
                self.row_pos,
                col_name + col_count_filter_name - 1,
                title,
                self.format_header_left,
            )
            self.sheet.merge_range(
                self.row_pos,
                col_value,
                self.row_pos,
                col_value + col_count_filter_value - 1,
                value,
            )
            self.row_pos += 1
        self.row_pos += 2

    def write_array_title(self, title):
        """Write array title on current line using all defined columns width.
        Columns are defined with `_get_report_columns` method.
        """
        self.sheet.merge_range(
            self.row_pos,
            0,
            self.row_pos,
            len(self.columns) - 1,
            title,
            self.format_bold,
        )
        self.row_pos += 1

    def write_array_header(self):
        """Write array header on current line using all defined columns name.
        Columns are defined with `_get_report_columns` method.
        """
        for col_pos, column in self.columns.items():
            self.sheet.write(
                self.row_pos, col_pos, column["header"], self.format_header_center
            )
        self.row_pos += 1

    def write_line(self, line_object):
        """Write a line on current line using all defined columns field name.
        Columns are defined with `_get_report_columns` method.
        """
        for col_pos, column in self.columns.items():
            value = getattr(line_object, column["field"])
            cell_type = column.get("type", "string")
            if cell_type == "many2one":
                self.sheet.write_string(
                    self.row_pos, col_pos, value.name or "", self.format_right
                )
            elif cell_type == "string":
                if (
                    hasattr(line_object, "account_group_id")
                    and line_object.account_group_id
                ):
                    self.sheet.write_string(
                        self.row_pos, col_pos, value or "", self.format_bold
                    )
                else:
                    self.sheet.write_string(self.row_pos, col_pos, value or "")
            elif cell_type == "amount":
                if (
                    hasattr(line_object, "account_group_id")
                    and line_object.account_group_id
                ):
                    cell_format = self.format_amount_bold
                else:
                    cell_format = self.format_amount
                self.sheet.write_number(
                    self.row_pos, col_pos, float(value), cell_format
                )
            elif cell_type == "amount_currency":
                if line_object.currency_id:
                    format_amt = self._get_currency_amt_format(line_object)
                    self.sheet.write_number(
                        self.row_pos, col_pos, float(value), format_amt
                    )
        self.row_pos += 1

    def write_line_from_dict(self, line_dict):
        """Write a line on current line
        """
        for col_pos, column in self.columns.items():
            value = line_dict.get(column["field"], False)
            cell_type = column.get("type", "string")
            if cell_type == "string":
                if (
                    line_dict.get("account_group_id", False)
                    and line_dict["account_group_id"]
                ):
                    self.sheet.write_string(
                        self.row_pos, col_pos, value or "", self.format_bold
                    )
                else:
                    if (
                        not isinstance(value, str)
                        and not isinstance(value, bool)
                        and not isinstance(value, int)
                    ):
                        value = value and value.strftime("%d/%m/%Y")
                    self.sheet.write_string(self.row_pos, col_pos, value or "")
            elif cell_type == "amount":
                if (
                    line_dict.get("account_group_id", False)
                    and line_dict["account_group_id"]
                ):
                    cell_format = self.format_amount_bold
                else:
                    cell_format = self.format_amount
                self.sheet.write_number(
                    self.row_pos, col_pos, float(value), cell_format
                )
            elif cell_type == "amount_currency":
                if line_dict.get("currency_name", False):
                    format_amt = self._get_currency_amt_format_dict(line_dict)
                    self.sheet.write_number(
                        self.row_pos, col_pos, float(value), format_amt
                    )
            elif cell_type == "currency_name":
                self.sheet.write_string(
                    self.row_pos, col_pos, value or "", self.format_right
                )
        self.row_pos += 1

    def write_initial_balance(self, my_object, label):
        """Write a specific initial balance line on current line
        using defined columns field_initial_balance name.
        Columns are defined with `_get_report_columns` method.
        """
        col_pos_label = self._get_col_pos_initial_balance_label()
        self.sheet.write(self.row_pos, col_pos_label, label, self.format_right)
        for col_pos, column in self.columns.items():
            if column.get("field_initial_balance"):
                value = getattr(my_object, column["field_initial_balance"])
                cell_type = column.get("type", "string")
                if cell_type == "string":
                    self.sheet.write_string(self.row_pos, col_pos, value or "")
                elif cell_type == "amount":
                    self.sheet.write_number(
                        self.row_pos, col_pos, float(value), self.format_amount
                    )
                elif cell_type == "amount_currency":
                    if my_object.currency_id:
                        format_amt = self._get_currency_amt_format(my_object)
                        self.sheet.write_number(
                            self.row_pos, col_pos, float(value), format_amt
                        )
            elif column.get("field_currency_balance"):
                value = getattr(my_object, column["field_currency_balance"])
                cell_type = column.get("type", "string")
                if cell_type == "many2one":
                    if my_object.currency_id:
                        self.sheet.write_string(
                            self.row_pos, col_pos, value.name or "", self.format_right
                        )
        self.row_pos += 1

    def write_initial_balance_from_dict(self, my_object, label):
        """Write a specific initial balance line on current line
        using defined columns field_initial_balance name.
        Columns are defined with `_get_report_columns` method.
        """
        col_pos_label = self._get_col_pos_initial_balance_label()
        self.sheet.write(self.row_pos, col_pos_label, label, self.format_right)
        for col_pos, column in self.columns.items():
            if column.get("field_initial_balance"):
                value = my_object.get(column["field_initial_balance"], False)
                cell_type = column.get("type", "string")
                if cell_type == "string":
                    self.sheet.write_string(self.row_pos, col_pos, value or "")
                elif cell_type == "amount":
                    self.sheet.write_number(
                        self.row_pos, col_pos, float(value), self.format_amount
                    )
                elif cell_type == "amount_currency":
                    if my_object["currency_id"]:
                        format_amt = self._get_currency_amt_format(my_object)
                        self.sheet.write_number(
                            self.row_pos, col_pos, float(value), format_amt
                        )
            elif column.get("field_currency_balance"):
                value = my_object.get(column["field_currency_balance"], False)
                cell_type = column.get("type", "string")
                if cell_type == "many2one":
                    if my_object["currency_id"]:
                        self.sheet.write_string(
                            self.row_pos, col_pos, value.name or "", self.format_right
                        )
        self.row_pos += 1

    def write_ending_balance(self, my_object, name, label):
        """Write a specific ending balance line on current line
        using defined columns field_final_balance name.
        Columns are defined with `_get_report_columns` method.
        """
        for i in range(0, len(self.columns)):
            self.sheet.write(self.row_pos, i, "", self.format_header_right)
        row_count_name = self._get_col_count_final_balance_name()
        col_pos_label = self._get_col_pos_final_balance_label()
        self.sheet.merge_range(
            self.row_pos,
            0,
            self.row_pos,
            row_count_name - 1,
            name,
            self.format_header_left,
        )
        self.sheet.write(self.row_pos, col_pos_label, label, self.format_header_right)
        for col_pos, column in self.columns.items():
            if column.get("field_final_balance"):
                value = getattr(my_object, column["field_final_balance"])
                cell_type = column.get("type", "string")
                if cell_type == "string":
                    self.sheet.write_string(
                        self.row_pos, col_pos, value or "", self.format_header_right
                    )
                elif cell_type == "amount":
                    self.sheet.write_number(
                        self.row_pos, col_pos, float(value), self.format_header_amount
                    )
                elif cell_type == "amount_currency":
                    if my_object.currency_id:
                        format_amt = self._get_currency_amt_header_format(my_object)
                        self.sheet.write_number(
                            self.row_pos, col_pos, float(value), format_amt
                        )
            elif column.get("field_currency_balance"):
                value = getattr(my_object, column["field_currency_balance"])
                cell_type = column.get("type", "string")
                if cell_type == "many2one":
                    if my_object.currency_id:
                        self.sheet.write_string(
                            self.row_pos,
                            col_pos,
                            value.name or "",
                            self.format_header_right,
                        )
        self.row_pos += 1

    def write_ending_balance_from_dict(self, my_object, name, label):
        """Write a specific ending balance line on current line
        using defined columns field_final_balance name.
        Columns are defined with `_get_report_columns` method.
        """
        for i in range(0, len(self.columns)):
            self.sheet.write(self.row_pos, i, "", self.format_header_right)
        row_count_name = self._get_col_count_final_balance_name()
        col_pos_label = self._get_col_pos_final_balance_label()
        self.sheet.merge_range(
            self.row_pos,
            0,
            self.row_pos,
            row_count_name - 1,
            name,
            self.format_header_left,
        )
        self.sheet.write(self.row_pos, col_pos_label, label, self.format_header_right)
        for col_pos, column in self.columns.items():
            if column.get("field_final_balance"):
                value = my_object.get(column["field_final_balance"], False)
                cell_type = column.get("type", "string")
                if cell_type == "string":
                    self.sheet.write_string(
                        self.row_pos, col_pos, value or "", self.format_header_right
                    )
                elif cell_type == "amount":
                    self.sheet.write_number(
                        self.row_pos, col_pos, float(value), self.format_header_amount
                    )
                elif cell_type == "amount_currency":
                    if my_object["currency_id"] and value:
                        format_amt = self._get_currency_amt_format_dict(my_object)
                        self.sheet.write_number(
                            self.row_pos, col_pos, float(value), format_amt
                        )
            elif column.get("field_currency_balance"):
                value = my_object.get(column["field_currency_balance"], False)
                cell_type = column.get("type", "string")
                if cell_type == "many2one":
                    if my_object["currency_id"]:
                        self.sheet.write_string(
                            self.row_pos, col_pos, value or "", self.format_header_right
                        )
                elif cell_type == "currency_name":
                    self.sheet.write_string(
                        self.row_pos, col_pos, value or "", self.format_header_right
                    )
        self.row_pos += 1

    def _get_currency_amt_format(self, line_object):
        """ Return amount format specific for each currency. """
        if "account_group_id" in line_object and line_object["account_group_id"]:
            format_amt = self.format_amount_bold
            field_prefix = "format_amount_bold"
        else:
            format_amt = self.format_amount
            field_prefix = "format_amount"
        if "currency_id" in line_object and line_object.get("currency_id", False):
            field_name = "{}_{}".format(field_prefix, line_object["currency_id"].name)
            if hasattr(self, field_name):
                format_amt = getattr(self, field_name)
            else:
                format_amt = self.workbook.add_format()
                self.field_name = format_amt
                format_amount = "#,##0." + (
                    "0" * line_object["currency_id"].decimal_places
                )
                format_amt.set_num_format(format_amount)
        return format_amt

    def _get_currency_amt_format_dict(self, line_dict):
        """ Return amount format specific for each currency. """
        if line_dict.get("account_group_id", False) and line_dict["account_group_id"]:
            format_amt = self.format_amount_bold
            field_prefix = "format_amount_bold"
        else:
            format_amt = self.format_amount
            field_prefix = "format_amount"
        if line_dict.get("currency_id", False) and line_dict["currency_id"]:
            if isinstance(line_dict["currency_id"], int):
                currency = self.env["res.currency"].browse(line_dict["currency_id"])
            else:
                currency = line_dict["currency_id"]
            field_name = "{}_{}".format(field_prefix, currency.name)
            if hasattr(self, field_name):
                format_amt = getattr(self, field_name)
            else:
                format_amt = self.workbook.add_format()
                self.field_name = format_amt
                format_amount = "#,##0." + ("0" * currency.decimal_places)
                format_amt.set_num_format(format_amount)
        return format_amt

    def _get_currency_amt_header_format(self, line_object):
        """ Return amount header format for each currency. """
        format_amt = self.format_header_amount
        if line_object.currency_id:
            field_name = "format_header_amount_%s" % line_object.currency_id.name
            if hasattr(self, field_name):
                format_amt = getattr(self, field_name)
            else:
                format_amt = self.workbook.add_format(
                    {"bold": True, "border": True, "bg_color": "#FFFFCC"}
                )
                self.field_name = format_amt
                format_amount = "#,##0." + (
                    "0" * line_object.currency_id.decimal_places
                )
                format_amt.set_num_format(format_amount)
        return format_amt

    def _get_currency_amt_header_format_dict(self, line_object):
        """ Return amount header format for each currency. """
        format_amt = self.format_header_amount
        if line_object["currency_id"]:
            field_name = "format_header_amount_%s" % line_object["currency_name"]
            if hasattr(self, field_name):
                format_amt = getattr(self, field_name)
            else:
                format_amt = self.workbook.add_format(
                    {"bold": True, "border": True, "bg_color": "#FFFFCC"}
                )
                self.field_name = format_amt
                format_amount = "#,##0." + (
                    "0" * line_object["currency_id"].decimal_places
                )
                format_amt.set_num_format(format_amount)
        return format_amt

    def _generate_report_content(self, workbook, report, data):
        """
            Allow to fetch report content to be displayed.
        """
        raise NotImplementedError()

    def _get_report_complete_name(self, report, prefix, data=None):
        if report.company_id:
            suffix = " - {} - {}".format(
                report.company_id.name, report.company_id.currency_id.name
            )
            return prefix + suffix
        return prefix

    def _get_report_name(self, report, data=False):
        """
            Allow to define the report name.
            Report name will be used as sheet name and as report title.
            :return: the report name
        """
        raise NotImplementedError()

    def _get_report_footer(self):
        """
            Allow to define the report footer.
            :return: the report footer
        """
        return False

    def _get_report_columns(self, report):
        """
            Allow to define the report columns
            which will be used to generate report.
            :return: the report columns as dict
            :Example:
            {
                0: {'header': 'Simple column',
                    'field': 'field_name_on_my_object',
                    'width': 11},
                1: {'header': 'Amount column',
                     'field': 'field_name_on_my_object',
                     'type': 'amount',
                     'width': 14},
            }
        """
        raise NotImplementedError()

    def _get_report_filters(self, report):
        """
            :return: the report filters as list
            :Example:
            [
                ['first_filter_name', 'first_filter_value'],
                ['second_filter_name', 'second_filter_value']
            ]
        """
        raise NotImplementedError()

    def _get_col_count_filter_name(self):
        """
            :return: the columns number used for filter names.
        """
        raise NotImplementedError()

    def _get_col_count_filter_value(self):
        """
            :return: the columns number used for filter values.
        """
        raise NotImplementedError()

    def _get_col_pos_initial_balance_label(self):
        """
            :return: the columns position used for initial balance label.
        """
        raise NotImplementedError()

    def _get_col_count_final_balance_name(self):
        """
            :return: the columns number used for final balance name.
        """
        raise NotImplementedError()

    def _get_col_pos_final_balance_label(self):
        """
            :return: the columns position used for final balance label.
        """
        raise NotImplementedError()