feat(uti): Cover theme sync
[csit.git] / resources / tools / dash / app / pal / trending / layout.py
index 9153081..422488d 100644 (file)
 """Plotly Dash HTML layout override.
 """
 
-
-import plotly.graph_objects as go
+import pandas as pd
 
 from dash import dcc
 from dash import html
 from dash import callback_context, no_update
-from dash import Input, Output, State, callback
+from dash import Input, Output, State
 from dash.exceptions import PreventUpdate
+import dash_bootstrap_components as dbc
 from yaml import load, FullLoader, YAMLError
 from datetime import datetime, timedelta
 
-from pprint import pformat
-
-from .data import read_data
+from ..data.data import Data
+from .graphs import graph_trending, graph_hdrh_latency, \
+    select_trending_data
 
 
 class Layout:
     """
     """
 
-    def __init__(self, app, html_layout_file, spec_file, graph_layout_file):
+    NO_GRAPH = {"data": [], "layout": {}, "frames": []}
+
+    def __init__(self, app, html_layout_file, spec_file, graph_layout_file,
+        data_spec_file):
         """
         """
 
@@ -43,9 +46,20 @@ class Layout:
         self._html_layout_file = html_layout_file
         self._spec_file = spec_file
         self._graph_layout_file = graph_layout_file
+        self._data_spec_file = data_spec_file
 
         # Read the data:
-        self._data = read_data()
+        data_mrr = Data(
+            data_spec_file=self._data_spec_file,
+            debug=True
+        ).read_trending_mrr(days=5)
+
+        data_ndrpdr = Data(
+            data_spec_file=self._data_spec_file,
+            debug=True
+        ).read_trending_ndrpdr(days=14)
+
+        self._data = pd.concat([data_mrr, data_ndrpdr], ignore_index=True)
 
         # Read from files:
         self._html_layout = ""
@@ -105,6 +119,10 @@ class Layout:
     def data(self):
         return self._data
 
+    @property
+    def layout(self):
+        return self._graph_layout
+
     def add_content(self):
         """
         """
@@ -112,188 +130,297 @@ class Layout:
             return html.Div(
                 id="div-main",
                 children=[
-                    dcc.Store(id="selected-tests"),
-                    self._add_ctrl_div(),
-                    self._add_plotting_div()
+                    dbc.Row(
+                        id="row-navbar",
+                        class_name="g-0",
+                        children=[
+                            self._add_navbar(),
+                        ]
+                    ),
+                    dcc.Loading(
+                        dbc.Offcanvas(
+                            id="offcanvas-metadata",
+                            title="Throughput And Latency",
+                            placement="end",
+                            is_open=False,
+                            children=[
+                                dbc.Row(id="metadata-tput-lat"),
+                                dbc.Row(id="metadata-hdrh-graph"),
+                            ]
+                        )
+                    ),
+                    dbc.Row(
+                        id="row-main",
+                        class_name="g-0 p-2",
+                        children=[
+                            dcc.Store(
+                                id="selected-tests"
+                            ),
+                            self._add_ctrl_col(),
+                            self._add_plotting_col(),
+                        ]
+                    )
                 ]
             )
         else:
             return html.Div(
-            id="div-main-error",
-            children="An Error Occured."
-        )
+                id="div-main-error",
+                children=[
+                    dbc.Alert(
+                        [
+                            "An Error Occured",
+                        ],
+                        color="danger",
+                    ),
+                ]
+            )
 
-    def _add_ctrl_div(self):
-        """Add div with controls. It is placed on the left side.
+    def _add_navbar(self):
+        """Add nav element with navigation panel. It is placed on the top.
         """
-        return html.Div(
-            id="div-controls",
+        return dbc.NavbarSimple(
+            id="navbarsimple-main",
             children=[
-                html.Div(
-                    id="div-controls-tabs",
-                    children=[
-                        self._add_ctrl_select(),
-                        self._add_ctrl_shown()
-                    ]
+                dbc.NavItem(
+                    dbc.NavLink(
+                        "Continuous Performance Trending",
+                        disabled=True,
+                        external_link=True,
+                        href="#"
+                    )
                 )
             ],
-            style={
-                "display": "inline-block",
-                "width": "18%",
-                "padding": "5px"
-            }
+            brand="Dashboard",
+            brand_href="/",
+            brand_external_link=True,
+            class_name="p-2",
+            fluid=True,
         )
 
-    def _add_plotting_div(self):
-        """Add div with plots and tables. It is placed on the right side.
+    def _add_ctrl_col(self) -> dbc.Col:
+        """Add column with controls. It is placed on the left side.
         """
-        return html.Div(
-            id="div-plotting-area",
+        return dbc.Col(
+            id="col-controls",
             children=[
-                dcc.Loading(
-                    id="loading-graph",
-                    children=[
-                        dcc.Graph(
-                            id="graph"
-                        )
-                    ],
-                    type="circle"
-                )
+                self._add_ctrl_panel(),
+                self._add_ctrl_shown()
             ],
-            style={
-                "vertical-align": "top",
-                "display": "none",
-                "width": "80%",
-                "padding": "5px"
-            }
         )
 
-    def _add_ctrl_shown(self):
-        """
+    def _add_plotting_col(self) -> dbc.Col:
+        """Add column with plots and tables. It is placed on the right side.
         """
-        return html.Div(
-            id="div-ctrl-shown",
+        return dbc.Col(
+            id="col-plotting-area",
             children=[
-                html.H5("Selected tests"),
-                html.Div(
-                    id="container-selected-tests",
+                dbc.Row(  # Throughput
+                    id="row-graph-tput",
+                    class_name="g-0 p-2",
                     children=[
-                        dcc.Checklist(
-                            id="cl-selected",
-                            options=[],
-                            labelStyle={"display": "block"}
-                        ),
-                        html.Button(
-                            id="btn-sel-remove",
-                            children="Remove Selected",
-                            disabled=False
-                        ),
-                        html.Button(
-                            id="btn-sel-display",
-                            children="Display",
-                            disabled=False
+                        dcc.Loading(
+                            dcc.Graph(id="graph-tput")
                         )
                     ]
                 ),
-                # Debug output, TODO: Remove
-                html.H5("Debug output"),
-                html.Pre(id="div-ctrl-info")
-            ]
+                dbc.Row(  # Latency
+                    id="row-graph-lat",
+                    class_name="g-0 p-2",
+                    children=[
+                        dcc.Loading(
+                            dcc.Graph(id="graph-latency")
+                        )
+                    ]
+                ),
+                dbc.Row(  # Download
+                    id="div-download",
+                    class_name="g-0",
+                    children=[
+                        dcc.Loading(children=[
+                            dbc.Button(
+                                id="btn-download-data",
+                                children=["Download Data"]
+                            ),
+                            dcc.Download(id="download-data")
+                        ])
+                    ]
+                )
+            ],
+            width=9,
         )
 
-    def _add_ctrl_select(self):
+    def _add_ctrl_panel(self) -> dbc.Row:
         """
         """
-        return html.Div(
-            id="div-ctrl-select",
+        return dbc.Row(
+            id="row-ctrl-panel",
+            class_name="g-0",
             children=[
-                html.H5("Physical Test Bed Topology, NIC and Driver"),
-                dcc.Dropdown(
+                dbc.Label("Physical Test Bed Topology, NIC and Driver"),
+                dbc.Select(
                     id="dd-ctrl-phy",
+                    className="p-2",
                     placeholder="Select a Physical Test Bed Topology...",
-                    multi=False,
-                    clearable=False,
                     options=[
                         {"label": k, "value": k} for k in self.spec_tbs.keys()
                     ],
+                    size="sm",
                 ),
-                html.H5("Area"),
-                dcc.Dropdown(
+                dbc.Label("Area"),
+                dbc.Select(
                     id="dd-ctrl-area",
+                    className="p-2",
                     placeholder="Select an Area...",
                     disabled=True,
-                    multi=False,
-                    clearable=False,
+                    size="sm",
                 ),
-                html.H5("Test"),
-                dcc.Dropdown(
+                dbc.Label("Test"),
+                dbc.Select(
                     id="dd-ctrl-test",
+                    className="p-2",
                     placeholder="Select a Test...",
                     disabled=True,
-                    multi=False,
-                    clearable=False,
+                    size="sm",
                 ),
-                html.Div(
-                    id="div-ctrl-core",
+                dbc.Row(
+                    id="row-ctrl-core",
+                    class_name="g-0",
                     children=[
-                        html.H5("Number of Cores"),
-                        dcc.Checklist(
-                            id="cl-ctrl-core-all",
-                            options=[{"label": "All", "value": "all"}, ],
-                            labelStyle={"display": "inline-block"}
-                        ),
-                        dcc.Checklist(
-                            id="cl-ctrl-core",
-                            labelStyle={"display": "inline-block"}
-                        )
-                    ],
-                    style={"display": "none"}
+                        dbc.Label("Number of Cores"),
+                        dbc.Col([
+                            dbc.Checklist(
+                                id="cl-ctrl-core-all",
+                                options=[{"label": "All", "value": "all"}, ],
+                                inline=False,
+                                switch=False
+                            ),
+                        ], width=3),
+                        dbc.Col([
+                            dbc.Checklist(
+                                id="cl-ctrl-core",
+                                inline=True,
+                                switch=False
+                            )
+                        ])
+                    ]
                 ),
-                html.Div(
-                    id="div-ctrl-framesize",
+                dbc.Row(
+                    id="row-ctrl-framesize",
+                    class_name="g-0",
                     children=[
-                        html.H5("Frame Size"),
-                        dcc.Checklist(
-                            id="cl-ctrl-framesize-all",
-                            options=[{"label": "All", "value": "all"}, ],
-                            labelStyle={"display": "inline-block"}
-                        ),
-                        dcc.Checklist(
-                            id="cl-ctrl-framesize",
-                            labelStyle={"display": "inline-block"}
-                        )
-                    ],
-                    style={"display": "none"}
+                        dbc.Label("Frame Size"),
+                        dbc.Col([
+                            dbc.Checklist(
+                                id="cl-ctrl-framesize-all",
+                                options=[{"label": "All", "value": "all"}, ],
+                                inline=True,
+                                switch=False
+                            ),
+                        ], width=3),
+                        dbc.Col([
+                            dbc.Checklist(
+                                id="cl-ctrl-framesize",
+                                inline=True,
+                                switch=False
+                            )
+                        ])
+                    ]
                 ),
-                html.Div(
-                    id="div-ctrl-testtype",
+                dbc.Row(
+                    id="row-ctrl-testtype",
+                    class_name="g-0",
                     children=[
-                        html.H5("Test Type"),
-                        dcc.Checklist(
-                            id="cl-ctrl-testtype-all",
-                            options=[{"label": "All", "value": "all"}, ],
-                            labelStyle={"display": "inline-block"}
-                        ),
-                        dcc.Checklist(
-                            id="cl-ctrl-testtype",
-                            labelStyle={"display": "inline-block"}
+                        dbc.Label("Test Type"),
+                        dbc.Col([
+                            dbc.Checklist(
+                                id="cl-ctrl-testtype-all",
+                                options=[{"label": "All", "value": "all"}, ],
+                                inline=True,
+                                switch=False
+                            ),
+                        ], width=3),
+                        dbc.Col([
+                            dbc.Checklist(
+                                id="cl-ctrl-testtype",
+                                inline=True,
+                                switch=False
+                            )
+                        ])
+                    ]
+                ),
+                dbc.Row(
+                    class_name="g-0",
+                    children=[
+                        dbc.Button(
+                            id="btn-ctrl-add",
+                            children="Add",
                         )
-                    ],
-                    style={"display": "none"}
+                    ]
                 ),
-                html.Button(
-                    id="btn-ctrl-add",
-                    children="Add",
-                    disabled=True
+                dbc.Row(
+                    class_name="g-0",
+                    children=[
+                        dcc.DatePickerRange(
+                            id="dpr-period",
+                            min_date_allowed=\
+                                datetime.utcnow()-timedelta(days=180),
+                            max_date_allowed=datetime.utcnow(),
+                            initial_visible_month=datetime.utcnow(),
+                            start_date=datetime.utcnow() - timedelta(days=180),
+                            end_date=datetime.utcnow(),
+                            display_format="D MMMM YY"
+                        )
+                    ]
+                )
+            ]
+        )
+
+    def _add_ctrl_shown(self) -> dbc.Row:
+        """
+        """
+        return dbc.Row(
+            id="div-ctrl-shown",
+            class_name="g-0",
+            children=[
+                dbc.Row(
+                    class_name="g-0",
+                    children=[
+                        dbc.Label("Selected tests"),
+                        dbc.Checklist(
+                            id="cl-selected",
+                            options=[],
+                            inline=False
+                        )
+                    ]
                 ),
-                html.Br(),
-                dcc.DatePickerRange(
-                    id="dpr-period",
-                    min_date_allowed=datetime(2021, 1, 1),
-                    max_date_allowed=datetime.utcnow(),
-                    initial_visible_month=datetime.utcnow(),
-                    start_date=datetime.utcnow() - timedelta(days=180),
-                    end_date=datetime.utcnow()
+                dbc.Row(
+                    class_name="g-0",
+                    children=[
+                        dbc.ButtonGroup(
+                            [
+                                dbc.Button(
+                                    id="btn-sel-remove-all",
+                                    children="Remove All",
+                                    color="secondary",
+                                    disabled=False
+                                ),
+                                dbc.Button(
+                                    id="btn-sel-remove",
+                                    children="Remove Selected",
+                                    color="secondary",
+                                    disabled=False
+                                ),
+                                dbc.Button(
+                                    id="btn-sel-display",
+                                    children="Display",
+                                    color="secondary",
+                                    disabled=False
+                                )
+                            ],
+                            size="md",
+                            class_name="me-1",
+                        ),
+                    ]
                 )
             ]
         )
@@ -350,13 +477,9 @@ class Layout:
             return options, disable
 
         @app.callback(
-            Output("div-ctrl-core", "style"),
             Output("cl-ctrl-core", "options"),
-            Output("div-ctrl-framesize", "style"),
             Output("cl-ctrl-framesize", "options"),
-            Output("div-ctrl-testtype", "style"),
             Output("cl-ctrl-testtype", "options"),
-            Output("btn-ctrl-add", "disabled"),
             State("dd-ctrl-phy", "value"),
             State("dd-ctrl-area", "value"),
             Input("dd-ctrl-test", "value"),
@@ -368,36 +491,27 @@ class Layout:
             if test is None:
                 raise PreventUpdate
 
-            core_style = {"display": "none"}
             core_opts = []
-            framesize_style = {"display": "none"}
             framesize_opts = []
-            testtype_style = {"display": "none"}
             testtype_opts = []
-            add_disabled = True
             if phy and area and test:
-                core_style = {"display": "block"}
                 core_opts = [
                     {"label": v, "value": v}
                         for v in self.spec_tbs[phy][area]["core"]
                 ]
-                framesize_style = {"display": "block"}
                 framesize_opts = [
                     {"label": v, "value": v}
                         for v in self.spec_tbs[phy][area]["frame-size"]
                 ]
-                testtype_style = {"display": "block"}
                 testtype_opts = [
                     {"label": v, "value": v}
                         for v in self.spec_tbs[phy][area]["test-type"]
                 ]
-                add_disabled = False
 
             return (
-                core_style, core_opts,
-                framesize_style, framesize_opts,
-                testtype_style, testtype_opts,
-                add_disabled
+                core_opts,
+                framesize_opts,
+                testtype_opts,
             )
 
         def _sync_checklists(opt, sel, all, id):
@@ -445,14 +559,13 @@ class Layout:
             return _sync_checklists(opt, sel, all, "cl-ctrl-testtype")
 
         @app.callback(
-            Output("graph", "figure"),
-            Output("div-ctrl-info", "children"),  # Debug output TODO: Remove
+            Output("graph-tput", "figure"),
+            Output("graph-latency", "figure"),
             Output("selected-tests", "data"),  # Store
             Output("cl-selected", "options"),  # User selection
             Output("dd-ctrl-phy", "value"),
             Output("dd-ctrl-area", "value"),
             Output("dd-ctrl-test", "value"),
-            Output("div-plotting-area", "style"),
             State("selected-tests", "data"),  # Store
             State("cl-selected", "value"),
             State("dd-ctrl-phy", "value"),
@@ -464,17 +577,19 @@ class Layout:
             Input("btn-ctrl-add", "n_clicks"),
             Input("btn-sel-display", "n_clicks"),
             Input("btn-sel-remove", "n_clicks"),
+            Input("btn-sel-remove-all", "n_clicks"),
             Input("dpr-period", "start_date"),
             Input("dpr-period", "end_date"),
             prevent_initial_call=True
         )
         def _process_list(store_sel, list_sel, phy, area, test, cores,
                 framesizes, testtypes, btn_add, btn_display, btn_remove,
-                d_start, d_end):
+                btn_remove_all, d_start, d_end):
             """
             """
 
-            if not (btn_add or btn_display or btn_remove or d_start or d_end):
+            if not (btn_add or btn_display or btn_remove or btn_remove_all or \
+                    d_start or d_end):
                 raise PreventUpdate
 
             def _list_tests():
@@ -486,29 +601,47 @@ class Layout:
                 else:
                     return list()
 
+            class RetunValue:
+                def __init__(self) -> None:
+                    self._output = {
+                        "graph-tput-figure": no_update,
+                        "graph-lat-figure": no_update,
+                        "selected-tests-data": no_update,
+                        "cl-selected-options": no_update,
+                        "dd-ctrl-phy-value": no_update,
+                        "dd-ctrl-area-value": no_update,
+                        "dd-ctrl-test-value": no_update,
+                    }
+
+                def value(self):
+                    return tuple(self._output.values())
+
+                def set_values(self, kwargs: dict) -> None:
+                    for key, val in kwargs.items():
+                        if key in self._output:
+                            self._output[key] = val
+                        else:
+                            raise KeyError(f"The key {key} is not defined.")
+
+
             trigger_id = callback_context.triggered[0]["prop_id"].split(".")[0]
 
-            d_start = datetime(
-                 int(d_start[0:4]), int(d_start[5:7]), int(d_start[8:10])
-            )
-            d_end = datetime(
-                 int(d_end[0:4]), int(d_end[5:7]), int(d_end[8:10])
-            )
+            d_start = datetime(int(d_start[0:4]), int(d_start[5:7]),
+                int(d_start[8:10]))
+            d_end = datetime(int(d_end[0:4]), int(d_end[5:7]), int(d_end[8:10]))
+
+            output = RetunValue()
 
             if trigger_id == "btn-ctrl-add":
                 # Add selected test to the list of tests in store:
                 if phy and area and test and cores and framesizes and testtypes:
-
-                    # TODO: Add validation
-
                     if store_sel is None:
                         store_sel = list()
-
                     for core in cores:
                         for framesize in framesizes:
                             for ttype in testtypes:
                                 tid = (
-                                    f"{phy}-"
+                                    f"{phy.replace('af_xdp', 'af-xdp')}-"
                                     f"{area}-"
                                     f"{framesize.lower()}-"
                                     f"{core.lower()}-"
@@ -525,14 +658,31 @@ class Layout:
                                         "core": core.lower(),
                                         "testtype": ttype.lower()
                                     })
-                return (no_update, no_update, store_sel, _list_tests(), None,
-                    None, None, no_update)
+                output.set_values({
+                    "selected-tests-data": store_sel,
+                    "cl-selected-options": _list_tests(),
+                    "dd-ctrl-phy-value": None,
+                    "dd-ctrl-area-value": None,
+                    "dd-ctrl-test-value": None,
+                })
 
             elif trigger_id in ("btn-sel-display", "dpr-period"):
-                fig, style = _update_graph(store_sel, d_start, d_end)
-                return (fig, pformat(store_sel), no_update, no_update,
-                    no_update, no_update, no_update, style)
-
+                fig_tput, fig_lat = graph_trending(
+                    self.data, store_sel, self.layout, d_start, d_end
+                )
+                output.set_values({
+                    "graph-tput-figure": \
+                        fig_tput if fig_tput else self.NO_GRAPH,
+                    "graph-lat-figure": \
+                        fig_lat if fig_lat else self.NO_GRAPH,
+                })
+            elif trigger_id == "btn-sel-remove-all":
+                output.set_values({
+                    "graph-tput-figure": self.NO_GRAPH,
+                    "graph-lat-figure": self.NO_GRAPH,
+                    "selected-tests-data": list(),
+                    "cl-selected-options": list()
+                })
             elif trigger_id == "btn-sel-remove":
                 if list_sel:
                     new_store_sel = list()
@@ -540,91 +690,97 @@ class Layout:
                         if item["id"] not in list_sel:
                             new_store_sel.append(item)
                     store_sel = new_store_sel
-                    fig, style = _update_graph(store_sel, d_start, d_end)
-                return (fig, pformat(store_sel), store_sel, _list_tests(),
-                    no_update, no_update, no_update, style)
+                if store_sel:
+                    fig_tput, fig_lat = graph_trending(
+                        self.data, store_sel, self.layout, d_start, d_end
+                    )
+                    output.set_values({
+                        "graph-tput-figure": \
+                            fig_tput if fig_tput else self.NO_GRAPH,
+                        "graph-lat-figure": \
+                            fig_lat if fig_lat else self.NO_GRAPH,
+                        "selected-tests-data": store_sel,
+                        "cl-selected-options": _list_tests()
+                    })
+                else:
+                    output.set_values({
+                        "graph-tput-figure": self.NO_GRAPH,
+                        "graph-lat-figure": self.NO_GRAPH,
+                        "selected-tests-data": store_sel,
+                        "cl-selected-options": _list_tests()
+                    })
 
-        def _update_graph(sel, start, end):
+            return output.value()
+
+        @app.callback(
+            Output("metadata-tput-lat", "children"),
+            Output("metadata-hdrh-graph", "children"),
+            Output("offcanvas-metadata", "is_open"),
+            Input("graph-tput", "clickData"),
+            Input("graph-latency", "clickData")
+        )
+        def _show_tput_metadata(tput_data, lat_data) -> dbc.Card:
             """
             """
+            if not (tput_data or lat_data):
+                raise PreventUpdate
 
-            if not sel:
-                return no_update, no_update
-
-            def _is_selected(label, sel):
-                for itm in sel:
-                    phy = itm["phy"].split("-")
-                    if len(phy) == 4:
-                        topo, arch, nic, drv = phy
-                    else:
-                        continue
-                    if nic not in label:
-                        continue
-                    if drv != "dpdk" and drv not in label:
-                        continue
-                    if itm["test"] not in label:
-                        continue
-                    if itm["framesize"] not in label:
-                        continue
-                    if itm["core"] not in label:
-                        continue
-                    if itm["testtype"] not in label:
-                        continue
-                    return (
-                        f"{itm['phy']}-{itm['framesize']}-{itm['core']}-"
-                        f"{itm['test']}-{itm['testtype']}"
-                    )
-                else:
-                    return None
-
-            style={
-                "vertical-align": "top",
-                "display": "inline-block",
-                "width": "80%",
-                "padding": "5px"
-            }
-
-            fig = go.Figure()
-            dates = self.data.iloc[[0], 1:].values.flatten().tolist()[::-1]
-            x_data = [
-                datetime(
-                    int(date[0:4]), int(date[4:6]), int(date[6:8]),
-                    int(date[9:11]), int(date[12:])
-                ) for date in dates
-            ]
-            x_data_range = [
-                date for date in x_data if date >= start and date <= end
+            metadata = no_update
+            graph = list()
+
+            trigger_id = callback_context.triggered[0]["prop_id"].split(".")[0]
+            if trigger_id == "graph-tput":
+                title = "Throughput"
+                txt = tput_data["points"][0]["text"].replace("<br>", "\n")
+            elif trigger_id == "graph-latency":
+                title = "Latency"
+                txt = lat_data["points"][0]["text"].replace("<br>", "\n")
+                hdrh_data = lat_data["points"][0].get("customdata", None)
+                if hdrh_data:
+                    graph = [dcc.Graph(
+                        id="hdrh-latency-graph",
+                        figure=graph_hdrh_latency(hdrh_data, self.layout)
+                    ), ]
+
+            metadata = [
+                dbc.Card(
+                    children=[
+                        dbc.CardHeader(children=[
+                            dcc.Clipboard(
+                                target_id="tput-lat-metadata",
+                                title="Copy",
+                                style={"display": "inline-block"}
+                            ),
+                            title
+                        ]),
+                        dbc.CardBody(
+                            id="tput-lat-metadata",
+                            children=[txt]
+                        )
+                    ]
+                )
             ]
-            vpp = self.data.iloc[[1], 1:].values.flatten().tolist()[::-1]
-            csit = list(self.data.columns[1:])[::-1]
-            labels = list(self.data["Build Number:"][3:])
-            for i in range(3, len(self.data)):
-                name = _is_selected(labels[i-3], sel)
-                if not name:
+
+            return metadata, graph, True
+
+        @app.callback(
+            Output("download-data", "data"),
+            State("selected-tests", "data"),
+            Input("btn-download-data", "n_clicks"),
+            prevent_initial_call=True
+        )
+        def _download_data(store_sel, n_clicks):
+            """
+            """
+
+            if not n_clicks:
+                raise PreventUpdate
+
+            df = pd.DataFrame()
+            for itm in store_sel:
+                sel_data = select_trending_data(self.data, itm)
+                if sel_data is None:
                     continue
-                y_data = [
-                    float(v) / 1e6 for v in \
-                        self.data.iloc[[i], 1:].values.flatten().tolist()[::-1]
-                ]
-                hover_txt = list()
-                for x_idx, x_itm in enumerate(x_data):
-                    hover_txt.append(
-                        f"date: {x_itm}<br>"
-                        f"average [Mpps]: {y_data[x_idx]}<br>"
-                        f"vpp-ref: {vpp[x_idx]}<br>"
-                        f"csit-ref: {csit[x_idx]}"
-                    )
-                fig.add_trace(
-                    go.Scatter(
-                        x=x_data_range,
-                        y= y_data,
-                        name=name,
-                        mode="markers+lines",
-                        text=hover_txt,
-                        hoverinfo=u"text+name"
-                    )
-                )
-            layout = self._graph_layout.get("plot-trending", dict())
-            fig.update_layout(layout)
+                df = pd.concat([df, sel_data], ignore_index=True)
 
-            return fig, style
+            return dcc.send_data_frame(df.to_csv, "trending_data.csv")