# -*- coding: utf-8 -*-
from flask import Flask, Response, render_template, url_for
from log_colorizer import make_colored_stream_handler
from logging import getLogger, INFO, WARN, DEBUG
from moulinrouge.data import labels, series
from pygal.bar import VerticalBar, HorizontalBar
from pygal.pie import Pie
import string
import random


def random_label():
    chars = string.letters + string.digits + u' àéèçêâäëï'
    return ''.join(
            [random.choice(chars)
             for i in range(
                     random.randrange(4, 30))])


def random_value():
    return random.randrange(0, 15, 1)


def generate_vbar(**opts):
    g = VerticalBar(labels, opts)
    for serie, values in series.items():
        g.add_data({'data': values, 'title': serie})

    return Response(g.burn(), mimetype='image/svg+xml')


def create_app():
    """Creates the pygal test web app"""

    app = Flask(__name__)
    handler = make_colored_stream_handler()
    getLogger('werkzeug').addHandler(handler)
    getLogger('werkzeug').setLevel(INFO)
    getLogger('pygal').addHandler(handler)
    getLogger('pygal').setLevel(DEBUG)

    @app.route("/")
    def index():
        return render_template('index.jinja2')

    @app.route("/all-<type>.svg")
    def all_svg(type):
        series = random.randrange(1, 10)
        data = random.randrange(1, 10)

        labels = [random_label() for i in range(data)]

        if type == 'vbar':
            g = VerticalBar(labels)
        elif type == 'hbar':
            g = HorizontalBar(labels)
        elif type == 'pie':
            series = 1
            g = Pie({'fields': labels})

        for i in range(series):
            values = [random_value() for i in range(data)]
            g.add_data({'data': values, 'title': random_label()})

        return Response(g.burn(), mimetype='image/svg+xml')

    @app.route("/all")
    def all():
        width, height = 800, 600
        svgs = [url_for('all_svg', type=type) for type in
                ('vbar', 'hbar', 'pie')]
        return render_template('svgs.jinja2',
                               svgs=svgs,
                               width=width,
                               height=height)

    @app.route("/rotation[<int:angle>].svg")
    def rotation_svg(angle):
        return generate_vbar(
            show_graph_title=True,
            graph_title="Rotation %d" % angle,
            x_label_rotation=angle)

    @app.route("/rotation")
    def rotation():
        width, height = 375, 245
        svgs = [url_for('rotation_svg', angle=angle)
                for angle in range(0, 91, 5)]
        return render_template('svgs.jinja2',
                               svgs=svgs,
                               width=width,
                               height=height)

    return app