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app.py
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app.py
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import time
import numpy as np
from dashcoch import DataLoader, StyleLoader
import math
from datetime import date, datetime, timedelta
import json
import geojson
import flask
import dash
import dash_core_components as dcc
import dash_bootstrap_components as dbc
import dash_html_components as html
from dash.dependencies import Input, Output, State, ClientsideFunction
from concurrent.futures import ThreadPoolExecutor, ProcessPoolExecutor
from dashcoch.config import config as cfg
from flask_caching import Cache
external_scripts = [
"https://cdn.simpleanalytics.io/hello.js",
]
lang = 0
meta_tags = [
{"name": "viewport", "content": "width=device-width, initial-scale=1"},
{"property": "og:title", "content": cfg["i18n"]["title"][lang].get()},
{"property": "og:type", "content": "website"},
{
"property": "og:description",
"content": "Latest updates of COVID-19 development in Switzerland",
},
{"property": "og:url", "content": cfg["i18n"]["description"][lang].get()},
{
"property": "og:image",
"content": "https://www.corona-data.ch/assets/embed-social-414x414.jpg",
},
]
app = dash.Dash(
__name__,
external_scripts=external_scripts,
external_stylesheets=[dbc.themes.DARKLY],
meta_tags=meta_tags,
)
server = app.server
app.title = cfg["i18n"]["title"][lang].get()
style = StyleLoader(cfg)
def get_data():
global data
try:
data = DataLoader(cfg)
except Exception as e:
print(e)
def update_data(period=int(cfg["settings"]["update_interval"].get())):
while True:
get_data()
print("Data updated at " + datetime.now().isoformat())
time.sleep(period)
get_data()
def get_lang():
try:
if not flask.has_request_context():
return cfg["settings"]["default_language"].get()
supported_languages = cfg["settings"]["languages"].get()
if "Referer" in flask.request.headers:
url_lang = flask.request.headers["Referer"].split("/")[-1]
if url_lang in supported_languages:
return supported_languages.index(url_lang)
candidate = flask.request.accept_languages.best_match(supported_languages)
if candidate in supported_languages:
return supported_languages.index(candidate)
else:
return cfg["settings"]["default_language"].get()
except:
lang = cfg["settings"]["default_language"].get()
# -------------------------------------------------------------------------------
# Globals used by Callbacks
# -------------------------------------------------------------------------------
phase_shapes = [
# {
# "type": "line",
# "xref": "x",
# "yref": "paper",
# "x0": "2020-03-16",
# "y0": 0,
# "x1": "2020-03-16",
# "y1": 1,
# "opacity": 1.0,
# "layer": "below",
# "line": {"width": 1.0, "color": "#ffffff", "dash": "dash",},
# },
# {
# "type": "line",
# "xref": "x",
# "yref": "paper",
# "x0": "2020-04-27",
# "y0": 0,
# "x1": "2020-04-27",
# "y1": 1,
# "opacity": 1.0,
# "layer": "below",
# "line": {"width": 1.0, "color": "#ffffff", "dash": "dash",},
# },
# {
# "type": "line",
# "xref": "x",
# "yref": "paper",
# "x0": "2020-05-11",
# "y0": 0,
# "x1": "2020-05-11",
# "y1": 1,
# "opacity": 1.0,
# "layer": "below",
# "line": {
# "width": 1.0,
# "color": "#ffffff",
# "dash": "dash",
# },
# },
# {
# "type": "line",
# "xref": "x",
# "yref": "paper",
# "x0": "2020-06-06",
# "y0": 0,
# "x1": "2020-06-06",
# "y1": 1,
# "opacity": 1.0,
# "layer": "below",
# "line": {
# "width": 1.0,
# "color": "#ffffff",
# "dash": "dash",
# },
# },
# {
# "type": "line",
# "xref": "x",
# "yref": "paper",
# "x0": "2020-06-22",
# "y0": 0,
# "x1": "2020-06-22",
# "y1": 1,
# "opacity": 1.0,
# "layer": "below",
# "line": {
# "width": 1.0,
# "color": "#ffffff",
# "dash": "dash",
# },
# },
]
phase_annotations = [
# {
# "x": "2020-04-06",
# "y": -0.12,
# "xref": "x",
# "yref": "paper",
# "text": "Soft Lockdown",
# "font": {"color": "#ffffff", "size": 10},
# "align": "center",
# "showarrow": False,
# },
# {
# "x": "2020-05-04",
# "y": -0.12,
# "xref": "x",
# "yref": "paper",
# "text": "Phase I",
# "font": {"color": "#ffffff", "size": 10},
# "align": "center",
# "showarrow": False,
# },
# {
# "x": "2020-05-24",
# "y": -0.12,
# "xref": "x",
# "yref": "paper",
# "text": "Phase II",
# "font": {"color": "#ffffff", "size": 10},
# "align": "center",
# "showarrow": False,
# },
# {
# "x": "2020-06-14",
# "y": -0.12,
# "xref": "x",
# "yref": "paper",
# "text": "Phase III",
# "font": {"color": "#ffffff", "size": 10},
# "align": "center",
# "showarrow": False,
# },
]
phase_annotations_double_height = [
# {
# "x": "2020-04-06",
# "y": -0.06,
# "xref": "x",
# "yref": "paper",
# "text": "Soft Lockdown",
# "font": {"color": "#ffffff", "size": 10},
# "align": "center",
# "showarrow": False,
# },
# {
# "x": "2020-05-04",
# "y": 1.0,
# "xref": "x",
# "yref": "paper",
# "text": "Phase I",
# "font": {"color": "#ffffff", "size": 10},
# "align": "center",
# "showarrow": False,
# },
# {
# "x": "2020-05-24",
# "y": -0.06,
# "xref": "x",
# "yref": "paper",
# "text": "Phase II",
# "font": {"color": "#ffffff", "size": 10},
# "align": "center",
# "showarrow": False,
# },
# {
# "x": "2020-06-14",
# "y": 1.0,
# "xref": "x",
# "yref": "paper",
# "text": "Phase III",
# "font": {"color": "#ffffff", "size": 10},
# "align": "center",
# "showarrow": False,
# },
]
def get_layout():
lang = get_lang()
content = [dcc.Location(id="url", refresh=False)]
# Header
if cfg["show"]["header"]:
content.extend(
[
html.Div(
id="header",
children=[
html.P(
id="language-picker",
children=[
dcc.Link(
children=html.Span(children=l),
refresh=True,
href="/" + l,
)
for l in cfg["settings"]["languages"].get()
],
),
html.Img(
src=cfg["logo"]["src"].get(),
style={
"width": cfg["logo"]["width"].get(),
"display": cfg["logo"]["display"].get(),
},
),
html.H3(children=cfg["i18n"]["title"][lang].get()),
# html.Div(id="muy-importante", children=[dcc.Markdown(cfg["i18n"]["important"][lang].get())]),
dbc.Button(
"Info",
id="info-button",
size="sm",
className="mb-3",
color="primary",
),
dbc.Collapse(
id="info-container",
children=[
html.P(
children=(
[dcc.Markdown(cfg["i18n"]["info"][lang].get())]
if cfg["show"]["info"].get()
else []
)
),
html.P(
id="sci-info",
children=(
[
dcc.Markdown(
cfg["i18n"]["more_info"][lang].get()
)
]
if cfg["show"]["more_info"].get()
else []
),
),
],
),
html.Br(),
],
),
]
)
# Totals
if cfg["show"]["totals"]:
content.extend(
[
dbc.Row(
[
dbc.Col(
html.Div(
className="total-container",
children=[
html.P(
className="total-title",
children=cfg["i18n"]["total_reported_cases"][
lang
].get(),
),
html.Div(
className="total-content",
children=str(int(data.total_swiss_cases)),
),
],
),
lg=3,
md=6,
xs=6,
),
dbc.Col(
html.Div(
className="total-container",
children=[
html.P(
className="total-title",
children=cfg["i18n"]["reported_cases_today"][
lang
].get(),
),
html.Div(
className="total-content",
children="+" + str(int(data.new_swiss_cases)),
),
],
),
lg=3,
md=6,
xs=6,
),
dbc.Col(
html.Div(
className="total-container",
children=[
html.P(
className="total-title",
children=cfg["i18n"]["total_fatalities"][
lang
].get(),
),
html.Div(
className="total-content",
children=str(int(data.total_swiss_fatalities)),
),
],
),
lg=3,
md=6,
xs=6,
),
dbc.Col(
html.Div(
className="total-container",
children=[
html.P(
className="total-title",
children=cfg["i18n"]["regions_updated_today"][
lang
].get(),
),
html.Div(
className="total-content",
children=str(
data.last_updated["Updated_Today"].sum()
)
+ " / "
+ str(len(data.last_updated)),
),
],
),
lg=3,
md=6,
xs=6,
),
]
),
html.Br(),
]
)
# Updated regions
if cfg["show"]["updates"]:
content.extend(
[
html.Div(
className="update-container",
children=[
html.Div(
className="update-title",
children=cfg["i18n"]["latest_updates"][lang].get(),
),
html.Div(
className="update-content",
children=[
html.Span(
className=str(vals["Updated_Today"]),
children=region
+ ": "
+ vals["Date"].strftime("%d. %m.")
+ " "
+ vals["Time"],
)
for region, vals in data.last_updated.iterrows()
],
),
],
),
]
)
# Map
if cfg["show"]["map"]:
content.extend(
[
html.Div(id="map-data", style={"display": "none"}),
html.Div(id="date-container", className="slider-container"),
html.Div(
children=[
dcc.Graph(
id="update-map",
config={"staticPlot": True},
style={"height": "62vw", "maxHeight": "600px"},
),
],
),
dbc.Row(
dbc.Col(
dbc.FormGroup(
[
dbc.RadioItems(
id="map-radios",
options=[
{
"label": cfg["i18n"]["new_cases"][
lang
].get(),
"value": "new",
},
{
"label": cfg["i18n"][
"total_reported_cases"
][lang].get(),
"value": "number",
},
{
"label": cfg["i18n"][
"cumulative_prevalence"
][lang].get(),
"value": "prevalence",
},
{
"label": cfg["i18n"][
"new_hospitalizations"
][lang].get(),
"value": "new_hospitalizations",
},
{
"label": cfg["i18n"][
"total_hospitalizations"
][lang].get(),
"value": "hospitalizations",
},
{
"label": cfg["i18n"]["new_fatalities"][
lang
].get(),
"value": "new_fatalities",
},
{
"label": cfg["i18n"]["total_fatalities"][
lang
].get(),
"value": "fatalities",
},
],
value="new",
inline=True,
),
]
),
)
),
html.Div(
id="map-slider",
children=[
html.P(
className="slider-text",
children=cfg["i18n"]["drag_the_slider_to_change_the_date"][
lang
].get(),
),
dcc.Slider(
id="slider-date",
min=len(data.swiss_cases["Date"]) - 15,
max=len(data.swiss_cases["Date"]) - 1,
marks={
i: d.strftime("%d. %m.")
for i, d in enumerate(data.swiss_cases["Date"])
if d.weekday() == 0
},
value=len(data.swiss_cases["Date"]) - 1,
updatemode="drag",
),
],
),
]
)
# Regional heatmap
if cfg["show"]["region_overview"]:
content.extend(
[
dbc.Row(
[
dbc.Col(
[
html.Div(
className="plot-title",
children=cfg["i18n"][
"plot_regional_overview_title"
][lang].get(),
),
dcc.Graph(
id="region-boxes",
config={
"displayModeBar": False,
"scrollZoom": True,
},
),
],
md=12,
lg=12,
)
]
),
]
)
# Links to regional websites
if cfg["show"]["region_links"]:
content.extend(
[
html.Div(
className="plot-title",
children=cfg["i18n"]["regional_data"][lang].get(),
),
html.Div(
id="regional-links-container",
children=[
html.Span(
children=[
html.A(
children=region["region"], href=region["detail"]
),
html.Span(children=" "),
]
)
for region in cfg["regions"].get()
if "detail" in region
],
),
html.Br(),
]
)
# Main Data
if cfg["show"]["main"]:
content.extend(
[
html.H4(
children=cfg["i18n"]["main_data_title"][lang].get(),
style={"color": style.theme["accent"]},
),
html.Div(
className="info-container",
children=cfg["i18n"]["info_main"][lang].get(),
),
html.Div(
className="plot-settings-container",
children=[
dbc.FormGroup(
[
dbc.RadioItems(
id="radio-scale-switzerland",
options=[
{
"label": cfg["i18n"]["linear_scale"][
lang
].get(),
"value": "linear",
},
{
"label": cfg["i18n"]["log_scale"][
lang
].get(),
"value": "log",
},
],
value="linear",
inline=True,
),
]
)
],
),
html.Br(),
dbc.Row(
[
dbc.Col(
[
html.Div(
className="plot-title",
children=cfg["i18n"][
"plot_total_reported_cases_country_title"
][lang].get(),
),
dcc.Graph(
id="case-ch-graph", config={"displayModeBar": False}
),
],
md=12,
lg=6,
),
dbc.Col(
[
html.Div(
className="plot-title",
children=cfg["i18n"][
"plot_total_fatalities_country_title"
][lang].get(),
),
dcc.Graph(
id="fatalities-ch-graph",
config={"displayModeBar": False},
),
],
md=12,
lg=6,
),
],
),
html.Br(),
dbc.Row(
[
dbc.Col(
[
html.Div(
className="plot-title",
children=cfg["i18n"][
"plot_daily_reported_cases_country_title"
][lang].get(),
),
dcc.Graph(
id="new-case-ch-graph",
config={"displayModeBar": False},
),
],
md=12,
lg=6,
),
dbc.Col(
[
html.Div(
className="plot-title",
children=cfg["i18n"][
"plot_daily_fatalities_country_title"
][lang].get(),
),
dcc.Graph(
id="new-fatalities-ch-graph",
config={"displayModeBar": False},
),
],
md=12,
lg=6,
),
],
),
html.Br(),
]
)
# Hospitalization Data
if cfg["show"]["hospitalizations"] and cfg["show"]["hospital_releases"]:
content.extend(
[
dbc.Row(
[
dbc.Col(
[
html.Div(
className="plot-title",
children=cfg["i18n"][
"plot_hospitalizations_country_title"
][lang].get(),
),
dcc.Graph(
id="hospitalizations-ch-graph",
config={"displayModeBar": False},
),
],
md=12,
lg=6,
),
dbc.Col(
[
html.Div(
className="plot-title",
children=cfg["i18n"]["plot_releases_country_title"][
lang
].get(),
),
dcc.Graph(
id="releases-ch-graph",
config={"displayModeBar": False},
),
],
md=12,
lg=6,
),
]
),
html.Br(),
]
)
if cfg["show"]["hospitalizations"] and not cfg["show"]["hospital_releases"]:
content.extend(
[
dbc.Row(
[
dbc.Col(
[
html.Div(
className="plot-title",
children=cfg["i18n"][
"plot_hospitalizations_country_title"
][lang].get(),
),
dcc.Graph(
id="hospitalizations-ch-graph",
config={"displayModeBar": False},
),
]
)
]
),
html.Br(),
]
)
# Log-Log Development Plot
if cfg["show"]["log_log_development"]:
content.extend(
[
dbc.Row(
[
dbc.Col(
[
html.Div(
className="plot-title",
children=cfg["i18n"]["plot_loglog_country_title"][
lang
].get(),
),
html.Div(
className="info-container",
children=cfg["i18n"]["info_log_log_main"][
lang
].get(),
),
dcc.Graph(
id="caseincrease-ch-graph",
config={"displayModeBar": False},
),
]
)
]
),
html.Br(),
]
)
# Age Distribution
if cfg["show"]["tests"]:
content.extend(
[
dbc.Row(
[
dbc.Col(
[
html.Div(
className="plot-title",
children=cfg["i18n"]["plot_tests_title"][
lang
].get(),
),
dcc.Graph(
id="tests-graph",
figure={
"data": [
{
"x": data.tests.index,
"y": data.tests["neg"],
"name": cfg["i18n"]["plot_tests_neg"][
lang
].get(),
"mode": "lines",
"marker": {
"color": style.theme["green"]
},
},
{
"x": data.tests.index,
"y": data.tests["pos"],
"name": cfg["i18n"]["plot_tests_pos"][
lang
].get(),
"mode": "lines",
"marker": {"color": style.theme["red"]},
},
],
"layout": {
"height": 400,
"xaxis": {
"showgrid": True,
"color": "#ffffff",
"title": cfg["i18n"]["plot_tests_x"][
lang
].get(),
},
"yaxis": {
"type": "linear",
"showgrid": True,
"color": "#ffffff",
"rangemode": "tozero",
"title": cfg["i18n"]["plot_tests_y"][
lang
].get(),
},
"legend": {
"x": 0.015,
"y": 1,
"traceorder": "normal",
"font": {
"family": "sans-serif",
"color": "white",
},
"bgcolor": style.theme["background"],
"bordercolor": style.theme["accent"],
"borderwidth": 1,
},
"dragmode": False,
"hovermode": "x unified",
"margin": {
"l": 60,
"r": 10,
"t": 30,
"b": 70,
},
"plot_bgcolor": style.theme["background"],
"paper_bgcolor": style.theme["background"],
"font": {
"color": style.theme["foreground"]
},
"shapes": phase_shapes,
"annotations": phase_annotations,
},
},
config={"displayModeBar": False},
),
]
),
dbc.Col(
[
html.Div(
className="plot-title",
children=cfg["i18n"]["plot_tests_ratio_title"][
lang
].get(),
),
dcc.Graph(
id="tests-ratio-graph",
figure={
"data": [
{
"x": data.tests.index,
"y": data.tests["pos_rate"],
"type": "bar",
"marker": {
"color": style.theme["foreground"],
"opacity": 0.5,
},
"hovertemplate": "%{y} %<extra></extra>",
"showlegend": False,
},
{
"x": data.tests.index,
"y": data.tests["pos_rate_rolling"],
"mode": "lines",
"marker": {
"color": style.theme["foreground"]
},
"name": cfg["i18n"]["moving_average"][
lang
].get(),
"hovertemplate": "%{y} %<extra></extra>",
"showlegend": True,
"fill": "tozeroy",
},
],
"layout": {
"height": 400,
"xaxis": {
"showgrid": True,
"color": "#ffffff",
"title": cfg["i18n"][
"plot_tests_ratio_x"
][lang].get(),
},
"yaxis": {
"type": "linear",
"showgrid": True,
"color": "#ffffff",
"rangemode": "tozero",
"title": cfg["i18n"][
"plot_tests_ratio_y"
][lang].get(),
},
"legend": {
"x": 0.015,
"y": 0.9,
"traceorder": "normal",
"font": {
"family": "sans-serif",
"color": "white",
},
"bgcolor": style.theme["background"],
"bordercolor": style.theme["accent"],
"borderwidth": 1,
},
"dragmode": False,
"hovermode": "x unified",
"margin": {
"l": 60,
"r": 10,
"t": 30,
"b": 70,
},
"plot_bgcolor": style.theme["background"],
"paper_bgcolor": style.theme["background"],
"font": {
"color": style.theme["foreground"]
},
"shapes": phase_shapes,
"annotations": phase_annotations,
},
},
config={"displayModeBar": False},
),
]