#!/usr/bin/python
# -*- coding: utf-8 -*-

"""
Python-nvd3 is a Python wrapper for NVD3 graph library.
NVD3 is an attempt to build re-usable charts and chart components
for d3.js without taking away the power that d3.js gives you.

Project location : https://github.com/areski/python-nvd3
"""

from .NVD3Chart import NVD3Chart, TemplateMixin


class lineWithFocusChart(TemplateMixin, NVD3Chart):
    """
    A lineWithFocusChart or line graph is a type of chart which displays information
    as a series of data points connected by straight line segments.
    The lineWithFocusChart provide a smaller chart that act as a selector,
    this is very useful if you want to zoom on a specific time period.

    Python example::

        from nvd3 import lineWithFocusChart
        chart = lineWithFocusChart(name='lineWithFocusChart', x_is_date=True, x_axis_format="%d %b %Y")
        xdata = [1365026400000, 1365026500000, 1365026600000, 1365026700000, 1365026800000, 1365026900000, 1365027000000]
        ydata = [-6, 5, -1, 2, 4, 8, 10]

        extra_serie = {"tooltip": {"y_start": "", "y_end": " ext"},
                       "date_format": "%d %b %Y"}
        chart.add_serie(name="Serie 1", y=ydata, x=xdata, extra=extra_serie)
        chart.buildhtml()
        print(chart.content)

    Javascript generated:

    .. include:: ./examples/lineWithFocusChart.html


    """

    CHART_FILENAME = "./linewfocuschart.html"
    template_chart_nvd3 = NVD3Chart.template_environment.get_template(CHART_FILENAME)

    def __init__(self, **kwargs):
        super(lineWithFocusChart, self).__init__(**kwargs)
        self.model = 'lineWithFocusChart'

        height = kwargs.get('height', 450)
        width = kwargs.get('width', None)

        if kwargs.get('x_is_date', False):
            self.set_date_flag(True)
            self.create_x_axis('xAxis', format=kwargs.get('x_axis_format',
                                                          '%d %b %Y %H %S'),
                               date=True)
            self.create_x_axis('x2Axis', format=kwargs.get('x_axis_format',
                                                           '%d %b %Y %H %S'),
                               date=True)
            self.set_custom_tooltip_flag(True)
        else:
            self.create_x_axis('xAxis', format=kwargs.get('x_axis_format',
                                                          '.2f'))
            self.create_x_axis('x2Axis', format=kwargs.get('x_axis_format',
                                                           '.2f'))

        self.create_y_axis('yAxis', format=kwargs.get('y_axis_format', '.2f'))
        self.create_y_axis('y2Axis', format=kwargs.get('y_axis_format', '.2f'))

        self.set_graph_height(height)
        if width:
            self.set_graph_width(width)