charpy/chartjs/__init__.py from Sylhare/charpy

charpy/chartjs/__init__.py
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__chartjs_version__ = "2.7.2"

SCRIPT = "<script src='https://cdnjs.cloudflare.com/ajax/libs/Chart.js/{}/Chart.min.js'>" \
            "</script>".format(__chartjs_version__)
CANVAS = "<div id='chartContainer' style='width:50%; float: left; clear:none;'>" \
         "   <canvas id='{}'></canvas>" \
         "</div>"
HTML = '''
        <!DOCTYPE html>
        <html>
            <head>
                <meta charset="UTF-8">
                <title>{}</title>
                {}
            </head>
            <body>
                <div id="content">
                    {}
                </div>
                <footer>
                </footer>
            </body>
        </html>
        '''
CHARTJS = '''
            <script>
                new Chart(document.getElementById('{}'), {{
                    type: '{}',
                    data: {{
                      labels: {},
                      datasets: [ {} ]
                    }},
                    options: {{
                      legend: {{ display: {} }},
                      title: {{
                        display: {},
                        text: '{}'
                      }}
                    }}
                }});
            
             </script>
            '''

JS_CONVERT = {True: 'true', False: 'false'}
PYTHON_CONVERT = {'true': True, 'false': False}

LINE = "line"
BAR = "bar"
HORIZONTAL_BAR = "horizontalBar"
RADAR = "radar"
POLAR_AREA = "polarArea"
DOUGHNUT = "doughnut"
PIE = "pie"
BUBBLE = "bubble"
SCATTER = "scatter"

TYPE = {
    LINE,
    BAR,
    HORIZONTAL_BAR,
    RADAR,
    POLAR_AREA,
    DOUGHNUT,
    PIE,
    BUBBLE,
    SCATTER
}


def is_chartjs_type(chart_type):
    """
    Return True if the chart type is handled by chartjs

    :param chart_type:
    :return: True or False
    """
    if chart_type in TYPE:
        return True
    else:
        return False


def check_chart_type(chart_type):
    if is_chartjs_type(chart_type):
        return chart_type
    else:
        raise TypeError("Error: The type '{}' is not a handled chartjs type".format(chart_type))