great-ai/great_ai/deploy/routes/dashboard/create_dash_app.py
2022-07-04 19:31:15 +02:00

259 lines
8.3 KiB
Python

from math import ceil
from typing import Any, Dict, List, Optional, Sequence, Tuple, Union
import pandas as pd
import plotly.express as px
import plotly.graph_objects as go
from dash import Dash, dcc, html
from dash.dependencies import Input, Output
from flask import Flask
from ....constants import DASHBOARD_PATH, ONLINE_TAG_NAME
from ....context import get_context
from ....helper import freeze, snake_case_to_text, text_to_hex_color
from ....utilities import unique
from ....views import SortBy, Trace
from .get_description import get_description
from .get_filter_from_datatable import get_filter_from_datatable
from .get_footer import get_footer
from .get_traces_table import get_traces_table
def create_dash_app(function_name: str, version: str, function_docs: str) -> Flask:
accent_color = text_to_hex_color(function_name)
app = Dash(
function_name,
requests_pathname_prefix=DASHBOARD_PATH + "/",
server=Flask(__name__),
title=snake_case_to_text(function_name),
update_title=None,
external_stylesheets=[
"/assets/index.css",
],
)
app.layout = html.Main(
[
html.Div(
html.P("PRODUCTION" if get_context().is_production else "DEVELOPMENT"),
className="environment",
style={"background": accent_color},
),
html.Header(
[
get_description(
function_name=function_name,
version=version,
function_docs=function_docs,
accent_color=accent_color,
),
execution_time_histogram_container := html.Div(),
],
),
configuration_container := html.Div(
className="configuration-container",
),
traces_table_container := html.Div(
[
html.Header(
[
html.H2("Latest traces"),
html.P(
"Recent traces and aggregated metrics are presented below. Try filtering the table."
),
html.A(
"Filtering syntax.",
href="https://dash.plotly.com/datatable/filtering",
target="_blank",
),
]
),
table := get_traces_table(),
],
className="traces-table-container",
),
parallel_coordinates := dcc.Graph(
className="parallel-coordinates", config={"displaylogo": False}
),
html.Div(className="space-filler"),
get_footer(),
interval := dcc.Interval(
interval=4 * 1000, # in milliseconds
),
]
)
@app.callback(
Output(configuration_container, "children"),
Input(interval, "n_intervals"),
)
def update_configuration(
n_intervals: int,
) -> List[html.Div]:
config = get_context().to_flat_dict()
return [
html.Div(
[
html.H4(snake_case_to_text(key)),
html.P(str(value)),
],
className="configuration-item",
style={"border-left": f"2px solid {accent_color}"},
)
for key, value in config.items()
]
@app.callback(
Output(table, "data"),
Output(table, "page_count"),
Output(table, "columns"),
Output(traces_table_container, "style"),
Output(execution_time_histogram_container, "children"),
Output(parallel_coordinates, "figure"),
Output(parallel_coordinates, "style"),
Input(table, "page_current"),
Input(table, "page_size"),
Input(table, "sort_by"),
Input(table, "filter_query"),
Input(interval, "n_intervals"),
)
def update_page(
page_current: int,
page_size: int,
sort_by: List[Dict[str, Union[str, int]]],
filter_query: str,
n_intervals: int,
) -> Tuple[
List[Dict[str, Any]],
int,
List[Dict[str, Sequence[str]]],
Dict[str, Any],
Any,
go.Figure,
Dict[str, Any],
]:
conjunctive_filters = (
[get_filter_from_datatable(f) for f in filter_query.split(" && ")]
if filter_query
else []
)
non_null_conjunctive_filters = [f for f in conjunctive_filters if f is not None]
elements, count = get_context().tracing_database.query(
skip=page_current * page_size,
take=page_size,
conjunctive_filters=non_null_conjunctive_filters,
conjunctive_tags=[ONLINE_TAG_NAME],
sort_by=[SortBy.parse_obj(s) for s in sort_by],
)
columns, style = update_layout(elements[0] if elements else None)
execution_time_histogram, parallel_coords_fig, style = update_charts(
elements=elements, function_name=function_name, accent_color=accent_color
)
return (
[
{k: str(v) for k, v in e.to_flat_dict(include_original=False).items()}
for e in elements
],
max(1, ceil(count / page_size)),
columns,
style,
execution_time_histogram,
parallel_coords_fig,
style,
)
return app.server
def update_layout(
first_element: Optional[Trace],
) -> Tuple[List[Dict[str, Sequence[str]]], Dict[str, Any]]:
if first_element:
keys = list(first_element.to_flat_dict(include_original=False).keys())
header_height = max(len(i.split(":")) for i in keys)
columns = [
{
"name": [""] * (header_height - len(k.split(":")))
+ k.replace("_flat", "").split(":"),
"id": k,
}
for k in keys
]
else:
columns = []
return (
columns,
{"display": "none" if first_element is None else "block"},
)
def update_charts(
elements: List[Trace], function_name: str, accent_color: str
) -> Tuple[Any, go.Figure, Dict[str, Any]]:
if not elements:
return (
html.Span(
f"No traces yet: call your function ({function_name}) to create one.",
className="placeholder",
),
go.Figure(),
{"display": "none"},
)
flat_elements = [e.to_flat_dict(include_original=False) for e in elements]
execution_time_histogram = dcc.Graph(config={"displaylogo": False})
df = pd.DataFrame(flat_elements)
fig = px.histogram(
df,
x="original_execution_time_ms",
labels={"original_execution_time_ms": "Execution time (ms)"},
nbins=20,
height=400,
log_y=True,
color_discrete_sequence=[accent_color],
)
fig.update_layout(
margin=dict(l=0, r=0, b=0, t=0, pad=0),
)
execution_time_histogram.figure = fig
parallel_coords_fig = go.Figure(
go.Parcoords(
dimensions=[
get_dimension_descriptor(df, c)
for c in df.columns
if c not in {"trace_id", "created", "output", "exception", "feedback"}
and "_flat" not in c
],
line_color=accent_color,
)
)
return execution_time_histogram, parallel_coords_fig, {}
def get_dimension_descriptor(df: pd.DataFrame, column: str) -> Dict[str, Any]:
dimension: Dict[str, Any] = {
"label": snake_case_to_text(column),
}
values = df[column]
try:
dimension["values"] = [float(v) for v in values]
except (TypeError, ValueError):
MAX_LENGTH = 40
unique_values = unique(values, key=freeze)
value_mapping = {str(v)[:MAX_LENGTH]: i for i, v in enumerate(unique_values)}
dimension["values"] = [value_mapping[str(v)[:MAX_LENGTH]] for v in values]
dimension["tickvals"] = list(value_mapping.values())
dimension["ticktext"] = [k[:MAX_LENGTH] for k in value_mapping.keys()]
return dimension