Merge pull request #14 from zaphar/styling

Styling improvements also Dark Mode

src/main.rs

@@ -64,6 +64,7 @@ async fn main() -> anyhow::Result<()> {
     let router = Router::new()
         // JSON api endpoints
         .nest("/js", routes::mk_js_routes(config.clone()))
+        .nest("/static", routes::mk_static_routes(config.clone()))
         .nest("/api", routes::mk_api_routes(config.clone()))
         // HTMX ui component endpoints
         .nest("/ui", routes::mk_ui_routes(config.clone()))

src/query.rs

@@ -21,18 +21,20 @@ use prometheus_http_query::{
 use serde::{Deserialize, Serialize};
 use tracing::debug;
 
-#[derive(Deserialize, Clone)]
+#[derive(Deserialize, Clone, Debug)]
 pub enum QueryType {
     Range,
     Scalar,
 }
 
+#[derive(Debug)]
 pub struct TimeSpan {
     pub end: DateTime<Utc>,
     pub duration: chrono::Duration,
     pub step_seconds: i64,
 }
 
+#[derive(Debug)]
 pub struct QueryConn<'conn> {
     source: &'conn str,
     query: &'conn str,

src/routes.rs

@@ -115,7 +115,7 @@ pub async fn dash_ui(State(config): State<Config>, Path(dash_idx): Path<usize>)
         .collect::<Vec<(usize, &Graph)>>();
     html!(
         h1 { (dash.title) }
-        span-selector {}
+        span-selector class="row-flex" {}
         @for (idx, graph) in &graph_iter {
             (graph_component(dash_idx, *idx, *graph))
         }
@@ -144,6 +144,7 @@ pub async fn index(State(config): State<Config>) -> Markup {
                 script src="/js/plotly.js" { }
                 script src="/js/htmx.js" {  }
                 script src="/js/lib.js" {  }
+                link rel="stylesheet" href="/static/site.css" {  }
                 (app(State(config.clone())).await)
             }
         }
@@ -157,15 +158,16 @@ pub async fn app(State(config): State<Config>) -> Markup {
         .enumerate()
         .collect::<Vec<(usize, String)>>();
     html! {
-        div {
+        div class="row-flex" {
+            div class="flex-item-shrink" {
                 // Header menu
                 ul {
                     @for title in &titles {
                         li hx-get=(format!("/ui/dash/{}", title.0)) hx-target="#dashboard" { (title.1) }
                     }
                 }
-            // dashboard display
-            div id="dashboard" { }
+            }
+            div class="flex-item-grow" id="dashboard" { }
         }
     }
 }
@@ -197,3 +199,10 @@ pub fn mk_js_routes(config: Arc<Vec<Dashboard>>) -> Router<Config> {
         .route("/htmx.js", get(htmx))
         .with_state(State(config))
 }
+
+pub fn mk_static_routes(config: Arc<Vec<Dashboard>>) -> Router<Config> {
+    Router::new()
+        .route("/site.css", get(|| async { return include_str!("../static/site.css"); }))
+        .with_state(State(config))
+}
+

static/lib.js

@@ -12,6 +12,10 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
+function getCssVariableValue(variableName) {
+    return getComputedStyle(document.documentElement).getPropertyValue(variableName);
+}
+
 class TimeseriesGraph extends HTMLElement {
     #uri;
     #width;
@@ -33,10 +37,13 @@ class TimeseriesGraph extends HTMLElement {
         this.#height = 600;
         this.#pollSeconds = 30;
         this.#menuContainer = this.appendChild(document.createElement('div'));
+        // TODO(jwall): These should probably be done as template clones so we have less places
+        // to look for class attributes.
+        this.#menuContainer.setAttribute("class", "row-flex");
         this.#targetNode = this.appendChild(document.createElement("div"));
     }
 
-    static observedAttributes = ['uri', 'width', 'height', 'poll-seconds', 'end', 'duration', 'step-duration'];
+    static observedAttributes = ['uri', 'width', 'height', 'poll-seconds', 'end', 'duration', 'step-duration', 'd3-tick-format'];
 
     attributeChangedCallback(name, _oldValue, newValue) {
         switch (name) {
@@ -181,6 +188,7 @@ class TimeseriesGraph extends HTMLElement {
         for (var opt of this.#filterLabels[key]) {
             const optElement = document.createElement("option");
             optElement.setAttribute("value", opt);
+            optElement.setAttribute("selected", true);
             optElement.innerText = opt;
             select.appendChild(optElement);
         }
@@ -217,6 +225,12 @@ class TimeseriesGraph extends HTMLElement {
                     this.populateFilterData(labels);
                 }
             }
+            if (subplot.Scalar) {
+                for (const triple of subplot.Scalar) {
+                    const labels = triple[0];
+                    this.populateFilterData(labels);
+                }
+            }
         }
     }
 
@@ -233,6 +247,14 @@ class TimeseriesGraph extends HTMLElement {
         var layout = {
             displayModeBar: false,
             responsive: true,
+            plot_bgcolor: getCssVariableValue('--paper-background-color').trim(),
+            paper_bgcolor: getCssVariableValue('--paper-background-color').trim(),
+            font: {
+                color: getCssVariableValue('--text-color').trim()
+            },
+            xaxis: {
+                gridcolor: getCssVariableValue("--accent-color")
+            }
         };
         var traces = [];
         for (var subplot_idx in data) {
@@ -254,6 +276,7 @@ class TimeseriesGraph extends HTMLElement {
                     // https://plotly.com/javascript/reference/layout/yaxis/
                     layout["yaxis" + subplotCount] = {
                         anchor: yaxis,
+                        gridcolor: getCssVariableValue("--accent-color"),
                         tickformat: meta["d3_tick_format"] || this.#d3TickFormat
                     };
                     const series = triple[2];
@@ -277,8 +300,18 @@ class TimeseriesGraph extends HTMLElement {
                 }
             } else if (subplot.Scalar) {
                 // https://plotly.com/javascript/reference/bar/
-                for (const triple of subplot.Scalar) {
+                layout["yaxis"] = {
+                    tickformat: this.#d3TickFormat,
+                    gridcolor: getCssVariableValue("--accent-color")
+                };
+                loopScalar: for (const triple of subplot.Scalar) {
                     const labels = triple[0];
+                    for (var label in labels) {
+                        var show = this.#filteredLabelSets[label];
+                        if (show && !show.includes(labels[label])) {
+                            continue loopScalar;
+                        }
+                    }
                     const meta = triple[1];
                     const series = triple[2];
                     var trace = {
@@ -328,6 +361,7 @@ class SpanSelector extends HTMLElement {
 
     connectedCallback() {
         const self = this;
+        // TODO(jwall): We should probably show a loading indicator of some kind.
         self.#updateInput.onclick = function(_evt) {
             self.updateGraphs()
         };

static/site.css

@@ -0,0 +1,92 @@
+:root {
+    /* Base colors */
+    --background-color: #FFFFFF; /* Light background */
+    --text-color: #333333; /* Dark text for contrast */
+    --paper-background-color: #F0F0F0;
+    --accent-color: #6200EE; /* For buttons and interactive elements */
+
+    /* Graph colors */
+    --graph-color-1: #007BFF; /* Blue */
+    --graph-color-2: #28A745; /* Green */
+    --graph-color-3: #DC3545; /* Red */
+    --graph-color-4: #FFC107; /* Yellow */
+    --graph-color-5: #17A2B8; /* Cyan */
+    --graph-color-6: #6C757D; /* Gray */
+
+    /* Axis and grid lines */
+    --axis-color: #CCCCCC;
+    --grid-line-color: #EEEEEE;
+
+    /* Tooltip background */
+    --tooltip-background-color: #FFFFFF;
+    --tooltip-text-color: #000000;
+}
+
+@media (prefers-color-scheme: dark) {
+    :root {
+        /* Solarized Dark Base Colors */
+        --background-color: #002b36; /* base03 */
+        --paper-background-color: #003c4a;
+        --text-color: #839496; /* base0 */
+        --accent-color: #268bd2; /* blue */
+
+        /* Graph colors - Solarized Accent Colors */
+        --graph-color-1: #b58900; /* yellow */
+        --graph-color-2: #cb4b16; /* orange */
+        --graph-color-3: #dc322f; /* red */
+        --graph-color-4: #d33682; /* magenta */
+        --graph-color-5: #6c71c4; /* violet */
+        --graph-color-6: #2aa198; /* cyan */
+
+        /* Axis and grid lines */
+        --axis-color: #586e75; /* base01 */
+        --grid-line-color: #073642; /* base02 */
+
+        /* Tooltip background */
+        --tooltip-background-color: #002b36; /* base03 */
+        --tooltip-text-color: #839496; /* base0 */
+    }
+}
+
+body {
+    background-color: var(--background-color);
+    color: var(--text-color);
+}
+
+input, textarea, select, option, button {
+    background-color: var(--paper-background-color);
+    border: 1px solid var(--accent-color);
+    color: var(--text-color);
+    padding: 8px;
+    border-radius: 4px;
+}
+
+body * {
+    padding-left: .3em;
+    padding-right: .3em;
+}
+
+.column-flex {
+   display: flex;
+   flex-direction: column;
+}
+
+.row-flex {
+   display: flex;
+   flex-direction: row;
+}
+
+.flex-item-grow {
+   flex: 1 0 auto;
+}
+
+.flex-item-shrink {
+   flex: 0 1 auto;
+}
+
+timeseries-graph {
+    background-color: var(--paper-background-color);
+    border-radius: 4px;
+    display: flex;
+    flex-direction: column;
+}