#!/usr/bin/env python

from flask import Flask, flash, redirect, render_template_string
from flask import render_template, request, session, abort
import os

app = Flask(__name__)


def button_widget(topic, label, pub_value):
    def f():
        template = '''
        <div>
        <input type="button" value="{{label}}" onclick="publish('{{topic}}', '{{pub_value}}');"/>
        </div>
        '''
        return render_template_string(
            template, topic=topic, label=label, pub_value=pub_value)

    return f


def label_widget(topic, label, unit=''):
    def f():
        template = '''
        <div class="widget subscriber" data-topic="{{topic}}">
          <div>
            <span class="{{topic}}-value update-policy-replace-content">-</span><span>{{unit}}</span>
          </div>
          <div>{{label}}</div>
        </div>
        '''
        return render_template_string(
            template, topic=topic, label=label, unit=unit)

    return f


def log_widget(topic, label):
    def f():
        template = '''
        <div class="widget subscriber" data-topic="{{topic}}">
          <div class="{{topic}}-value update-policy-append-content" style="overflow: auto; height:100px;">
          </div>
          <div>{{label}}</div>
        </div>
        '''
        return render_template_string(template, topic=topic, label=label)

    return f


def row_layout(title, *elems):
    def f():
        template = '''
        <div>
        <div>{{title}}</div>
        <div style="display: flex;">
          {% for w in elems %}
            {{w()|safe}}
          {% endfor %}
        </div>
        </div>
        '''
        return render_template_string(template, title=title, elems=elems)

    return f


@app.route('/')
def home():
    return render_template(
        'base.html',
        widgets=[
            label_widget("test", "test value", "%"),
            row_layout(
                "Temperature",
                label_widget("home/sensors/livingroom/temperature",
                             "livingroom", "°C"),
                label_widget("home/sensors/office/temperature", "office",
                             "°C"),
                label_widget("home/sensors/bedroom/temperature", "bedroom",
                             "°C")),
            row_layout("Device logs", log_widget("test", "test log"),
                       log_widget("test2", "test log 2")),
            button_widget("test", "set to 1", 1),
            button_widget("test", "set to foo", 'foo')
        ])


if __name__ == "__main__":
    app.secret_key = os.urandom(12)
    app.run(debug=True, host='0.0.0.0', port=4000)