implement history graph

Cargo.lock

@@ -1057,8 +1057,11 @@ name = "entities"
 version = "0.1.0"
 dependencies = [
  "chrono",
+ "migration",
  "sea-orm",
+ "sea-query",
  "serde",
+ "tokio",
 ]
 
 [[package]]

entities/Cargo.toml

@@ -11,4 +11,11 @@ path = "src/mod.rs"
 [dependencies]
 chrono = { workspace = true }
 sea-orm = { workspace = true }
+sea-query = { workspace = true }
 serde = { workspace = true, features = ["derive"] }
+
+[dev-dependencies]
+tokio = { workspace = true, features = ["full"] }
+
+[dev-dependencies.migration]
+path = "../migration"

entities/src/health_check.rs

@@ -1,8 +1,11 @@
 //! `SeaORM` Entity. Generated by sea-orm-codegen 0.11.3
 
-use sea_orm::entity::prelude::*;
+use sea_orm::{entity::prelude::*, FromQueryResult};
+use sea_query::{Query, Order, Alias, SimpleExpr};
 use serde::Serialize;
 
+use crate::check_errors;
+
 #[derive(Clone, Debug, PartialEq, DeriveEntityModel, Eq, Serialize)]
 #[sea_orm(table_name = "health_check")]
 pub struct Model {
@@ -34,3 +37,59 @@ impl Related<super::host::Entity> for Entity {
 }
 
 impl ActiveModelBehavior for ActiveModel {}
+
+#[derive(Debug, FromQueryResult, Serialize)]
+pub struct HealthyAmount {
+    pub time: i64,
+    pub alive: i64,
+    pub dead: i64,
+}
+
+impl HealthyAmount {
+    pub async fn fetch(db: &DatabaseConnection, from: DateTimeUtc, to: DateTimeUtc, hosts: Option<&[i32]>) -> Result<Vec<HealthyAmount>,DbErr> {
+        let builder = db.get_database_backend();
+        let mut stmt: sea_query::SelectStatement = Query::select();
+        stmt.column(self::Column::Time)
+            .expr_as(SimpleExpr::Custom("SUM(healthy)".to_string()), Alias::new("alive"))
+            .expr_as(SimpleExpr::Custom("SUM(1-healthy)".to_string()), Alias::new("dead"))
+            .group_by_col(self::Column::Time)
+            .from(self::Entity)
+            .and_where(self::Column::Time.between(from.timestamp(), to.timestamp()));
+        if let Some(hosts)  = hosts {
+            stmt.and_where(self::Column::Host.is_in(hosts.iter().map(|v| *v)));
+        }
+        stmt.group_by_col(self::Column::Time)
+            .order_by(self::Column::Time, Order::Asc);
+        HealthyAmount::find_by_statement(builder.build(&stmt)).all(db).await
+    }
+}
+
+#[cfg(test)]
+mod test {
+
+    use super::*;
+    use chrono::Utc;
+    use migration::MigratorTrait;
+    use sea_orm::{ConnectOptions, Database};
+
+    pub(crate) async fn db_init() -> DatabaseConnection {
+        let db = Database::connect(ConnectOptions::new(
+            "sqlite:./test_db.db?mode=rwc".to_owned(),
+        ))
+        .await
+        .unwrap();
+        migration::Migrator::up(&db, None).await.unwrap();
+        db
+    }
+    #[tokio::test(flavor = "multi_thread", worker_threads = 1)]
+    #[ignore]
+    async fn test_fetch_instance_list() {
+        let db = db_init().await;
+        let time_now = Utc::now();
+        let time_3h = time_now
+            .checked_sub_signed(chrono::Duration::days(14))
+            .unwrap();
+        let hosts = vec![1,2,3];
+        dbg!(HealthyAmount::fetch(&db, time_3h, time_now,Some(&hosts)).await.unwrap());
+    }
+}

entities/src/host.rs

@@ -115,4 +115,4 @@ impl Related<super::health_check::Entity> for Entity {
     }
 }
 
-impl ActiveModelBehavior for ActiveModel {}
+impl ActiveModelBehavior for ActiveModel {}

server/src/admin.rs

@@ -8,6 +8,8 @@ use axum::response::IntoResponse;
 use axum::response::Redirect;
 use axum::Form;
 use axum::Json;
+use chrono::DateTime;
+use chrono::Utc;
 use constant_time_eq::constant_time_eq;
 use entities::check_errors;
 use entities::health_check;
@@ -39,6 +41,7 @@ use crate::ServerError;
 use crate::ADMIN_OVERVIEW_URL;
 use crate::LOGIN_URL;
 
+/// Stored session login information
 #[derive(Serialize, Deserialize, Default)]
 pub struct ActiveLogin {
     /// Hosts this session has access to.
@@ -183,6 +186,7 @@ async fn login_inner(
     }
 }
 
+/// Admin login form
 #[derive(Deserialize, Debug)]
 pub struct LoginInput {
     domain: String,
@@ -191,12 +195,20 @@ pub struct LoginInput {
     verification_method: VerificationMethod,
 }
 
+/// Part of the admin login form
 #[derive(Serialize, Deserialize, Debug)]
 enum VerificationMethod {
     DNS,
     HTTP,
 }
 
+/// Json passed to select a date range
+#[derive(Deserialize, Debug)]
+pub struct DateRangeInput {
+    start: DateTime<Utc>,
+    end: DateTime<Utc>,
+}
+
 async fn fetch_host_txt(
     instance_url: &str,
     client: &Client,
@@ -278,7 +290,7 @@ pub async fn overview(
 ) -> Result<axum::response::Response> {
     tracing::info!(?session);
 
-    let (login, hosts) = get_all_login_hosts(&session, db).await?;
+    let (login, hosts) = get_all_login_hosts(&session, db,true).await?;
 
     let mut context = tera::Context::new();
     let res = {
@@ -300,15 +312,37 @@ pub async fn overview(
 
 pub async fn history_json(
     State(ref db): State<DatabaseConnection>,
-    Path(host): Path<i32>,
     session: Session,
+    Json(input): Json<DateRangeInput>,
+) -> Result<axum::response::Response> {
+    #[derive(Debug, Serialize)]
+    struct ReturnData {
+        pub global: Vec<health_check::HealthyAmount>,
+        pub user: Vec<health_check::HealthyAmount>,
+    }
+    let (_login, hosts) = get_all_login_hosts(&session, db, false).await?;
+    let host_ids: Vec<_> = hosts.iter().map(|host|host.id).collect();
+    let data_owned = health_check::HealthyAmount::fetch(db, input.start, input.end,Some(&host_ids)).await?;
+    let data_global = health_check::HealthyAmount::fetch(db, input.start, input.end,None).await?;
+
+    Ok(Json(ReturnData {
+        global: data_global,
+        user: data_owned,
+    }).into_response())
+}
+
+pub async fn history_json_specific(
+    State(ref db): State<DatabaseConnection>,
+    session: Session,
+    Path(host): Path<i32>,
+    Json(input): Json<DateRangeInput>,
 ) -> Result<axum::response::Response> {
     let host = get_specific_login_host(host, &session, db).await?;
 
     let history: Vec<health_check::Model> = health_check::Entity::find()
         .filter(health_check::Column::Host.eq(host.id))
         .order_by_asc(health_check::Column::Time)
-        .limit(20)
+        .filter(health_check::Column::Time.between(input.start.timestamp(), input.end.timestamp()))
         .all(db)
         .await?;
 
@@ -343,16 +377,16 @@ pub async fn history_view(
     Ok(res)
 }
 
-pub async fn errors_view(
+pub async fn instance_view(
     State(ref app_state): State<AppState>,
     State(ref template): State<Arc<tera::Tera>>,
     State(ref db): State<DatabaseConnection>,
-    Path(host): Path<i32>,
+    Path(instance): Path<i32>,
     session: Session,
 ) -> Result<axum::response::Response> {
     tracing::info!(?session);
 
-    let host = get_specific_login_host(host, &session, db).await?;
+    let host = get_specific_login_host(instance, &session, db).await?;
 
     let errors = check_errors::Entity::find()
         .filter(check_errors::Column::Host.eq(host.id))
@@ -371,22 +405,24 @@ pub async fn errors_view(
         context.insert("last_updated", &time);
         context.insert("ERRORS", &errors);
         context.insert("HOST_DOMAIN", &host.domain);
+        context.insert("HOST_ID", &instance);
 
-        let res = Html(template.render("errors_admin.html.j2", &context)?).into_response();
+        let res = Html(template.render("instance_admin.html.j2", &context)?).into_response();
         drop(guard);
         res
     };
     Ok(res)
 }
 
-/// Get all [host::Model] for current [Session]
+/// Get all [host::Model] for current [Session], optionally return all hosts for admins
 async fn get_all_login_hosts(
     session: &Session,
     db: &DatabaseConnection,
+    return_admin_hosts: bool,
 ) -> Result<(ActiveLogin, Vec<host::Model>)> {
     let login = get_session_login(&session)?;
 
-    let host_res = match login.admin {
+    let host_res = match login.admin && return_admin_hosts {
         true => {
             host::Entity::find()
                 .filter(host::Column::Enabled.eq(true))

server/src/lib.rs

@@ -6,7 +6,7 @@ use axum::{
     extract::DefaultBodyLimit,
     http::HeaderValue,
     response::{Html, Redirect},
-    routing::{get, get_service},
+    routing::{get, get_service, post},
     BoxError, Router,
 };
 use chrono::TimeZone;
@@ -147,9 +147,10 @@ pub async fn start(
         .route("/api/v1/instances", get(api::instances))
         .nest(ADMIN_OVERVIEW_URL, Router::new()
             .route("/", get(admin::overview))
-            .route("/errors/:host", get(admin::errors_view))
+            .route("/instance/:instance", get(admin::instance_view))
             // .route("/history/:host", get(admin::history_view))
-            // .route("/api/history", get(admin::history_json))
+            .route("/api/history/:instance", post(admin::history_json_specific))
+            .route("/api/history", post(admin::history_json))
             .route("/login", get(admin::login_view).post(admin::login).route_layer(rate_limit_layer))
             .route("/logout", get(admin::logout))
             // .layer(ServiceBuilder::new().layer(SetResponseHeaderLayer::overriding(header::CACHE_CONTROL, "must-revalidate")))

server/static/admin.js

@@ -0,0 +1,111 @@
+document.addEventListener("DOMContentLoaded", function() {
+    const startDateInput = document.getElementById('startDate');
+    const endDateInput = document.getElementById('endDate');
+    const submitTime = document.getElementById('submitDateRange');
+
+    // Set initial values in UTC
+    const initialEndDate = moment.utc();
+    const initialStartDate = moment().subtract(30, 'days').utc();
+    startDateInput.value = initialStartDate.format('YYYY-MM-DD');
+    endDateInput.value = initialEndDate.format('YYYY-MM-DD');;
+
+    submitTime.addEventListener('click', function() {
+        const startDate = moment(startDateInput.value, 'YYYY-MM-DD');
+        const endDate = moment(endDateInput.value, 'YYYY-MM-DD');
+
+        if (!startDate.isValid() || !endDate.isValid()) {
+            alert('Invalid date format. Please use the YYYY-MM-DD format.');
+        } else if (startDate.isAfter(endDate)) {
+            alert('Invalid date range. Start date must be before the end date.');
+        } else {
+            fetchDataAndCreateChart(startDate,endDate);
+        }
+    });
+    fetchDataAndCreateChart(initialStartDate,initialEndDate);
+});
+
+let chart = undefined;
+async function fetchDataAndCreateChart(startDate,endDate) {
+    let data;
+    try {
+        const response = await fetch('/admin/api/history', {
+            method: "POST",
+                headers: {
+                "Content-Type": "application/json",
+            },
+            body: JSON.stringify({"start": startDate.utc(), "end": endDate.add(1, 'days').utc()})
+        });
+        data = await response.json();
+    } catch (error) {
+        console.error('Failed to fetch data:', error);
+    }
+
+    // Extracting data for chart
+    const timestamps = data.global.map(entry => entry.time * 1000); // Converting UNIX timestamps to milliseconds
+    const healthyData = data.global.map(entry => entry.alive);
+    const unhealthyData = data.global.map(entry => entry.dead);
+    const userUnhealthyData = data.user.filter(entry => entry.dead > 0).map(entry => ({"x": entry.time * 1000, "y": entry.dead}));
+    const paramData = {"global": {"healthyData":  healthyData, "unhealthyData": unhealthyData}, "user": userUnhealthyData};
+    console.log(paramData);
+    createChart(timestamps, paramData);
+    
+}
+
+function createChart(timestamps, data) {
+    const ctx = document.getElementById('graph').getContext('2d');
+    let high_data = timestamps.length > 1000;
+    if (chart) {
+        chart.destroy();
+    }
+    chart = new Chart(ctx, {
+        type: 'line',
+        data: {
+            labels: timestamps,
+            datasets: [
+                {
+                    label: 'Healthy',
+                    data: data.global.healthyData,
+                    borderColor: 'green',
+                    backgroundColor: 'rgba(0, 255, 0, 0.2)',
+                    fill: true
+                },
+                {
+                    label: 'Unhealthy',
+                    data: data.global.unhealthyData,
+                    borderColor: 'orange',
+                    backgroundColor: 'rgba(241, 90, 34, 0.2)',
+                    fill: true
+                },
+                {
+                    label: 'Own Instances Unhealthy',
+                    data: data.user,
+                    pointRadius: 5,
+                    pointBackgroundColor: 'rgba(255, 0, 0, 1)',
+                    fill: false,
+                    datasetIndex: "x",
+                }
+            ]
+        },
+        options: {
+            plugins: {
+                decimation: {
+                    enabled: high_data,
+                    algorithm: 'min-max',
+                },
+            },
+            animation: !high_data,
+            scales: {
+                x: {
+                    type: 'time',
+                    time: {
+                        unit: 'day' // You might want to adjust this based on your data resolution
+                    },
+                    autoSkip: true,
+                },
+                y: {
+                    beginAtZero: true
+                }
+            }
+        }
+    });
+}

server/static/chart.min.js

@@ -1 +0,0 @@
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_toLeftRightCenter,a2 as _alignStartEnd,a3 as overrides,a4 as merge,a5 as _capitalize,a6 as descriptors,a7 as isFunction,a8 as _attachContext,a9 as _createResolver,aa as _descriptors,ab as mergeIf,ac as uid,ad as debounce,ae as retinaScale,af as clearCanvas,ag as setsEqual,ah as _elementsEqual,ai as _isClickEvent,aj as _isBetween,ak as _readValueToProps,al as _updateBezierControlPoints,am as _computeSegments,an as _boundSegments,ao as _steppedInterpolation,ap as _bezierInterpolation,aq as _pointInLine,ar as _steppedLineTo,as as _bezierCurveTo,at as drawPoint,au as addRoundedRectPath,av as toTRBL,aw as toTRBLCorners,ax as _boundSegment,ay as _normalizeAngle,az as getRtlAdapter,aA as overrideTextDirection,aB as _textX,aC as restoreTextDirection,aD as drawPointLegend,aE as distanceBetweenPoints,aF as noop,aG as _setMinAndMaxByKey,aH as niceNum,aI as almostWhole,aJ as almostEquals,aK as _decimalPlaces,aL as Ticks,aM as log10,aN as _longestText,aO as _filterBetween,aP as _lookup}from"./chunks/helpers.segment.js";import"@kurkle/color";class Animator{constructor(){this._request=null,this._charts=new Map,this._running=!1,this._lastDate=void 0}_notify(e,i,a,t){const s=i.listeners[t],n=i.duration;s.forEach(t=>t({chart:e,initial:i.initial,numSteps:n,currentStep:Math.min(a-i.start,n)}))}_refresh(){this._request||(this._running=!0,this._request=requestAnimFrame.call(window,()=>{this._update(),this._request=null,this._running&&this._refresh()}))}_update(r=Date.now()){let o=0;this._charts.forEach((a,s)=>{if(a.running&&a.items.length){const n=a.items;let t=n.length-1,e=!1,i;for(;0<=t;--t)(i=n[t])._active?(i._total>a.duration&&(a.duration=i._total),i.tick(r),e=!0):(n[t]=n[n.length-1],n.pop());e&&(s.draw(),this._notify(s,a,r,"progress")),n.length||(a.running=!1,this._notify(s,a,r,"complete"),a.initial=!1),o+=n.length}}),this._lastDate=r,0===o&&(this._running=!1)}_getAnims(t){const e=this._charts;let i=e.get(t);return i||(i={running:!1,initial:!0,items:[],listeners:{complete:[],progress:[]}},e.set(t,i)),i}listen(t,e,i){this._getAnims(t).listeners[e].push(i)}add(t,e){e&&e.length&&this._getAnims(t).items.push(...e)}has(t){return 0<this._getAnims(t).items.length}start(t){const e=this._charts.get(t);e&&(e.running=!0,e.start=Date.now(),e.duration=e.items.reduce((t,e)=>Math.max(t,e._duration),0),this._refresh())}running(t){if(!this._running)return!1;t=this._charts.get(t);return!!(t&&t.running&&t.items.length)}stop(e){const i=this._charts.get(e);if(i&&i.items.length){const a=i.items;let t=a.length-1;for(;0<=t;--t)a[t].cancel();i.items=[],this._notify(e,i,Date.now(),"complete")}}remove(t){return this._charts.delete(t)}}var animator=new Animator;const transparent="transparent",interpolators={boolean(t,e,i){return.5<i?e:t},color(t,e,i){t=color(t||transparent);const a=t.valid&&color(e||transparent);return a&&a.valid?a.mix(t,i).hexString():e},number(t,e,i){return t+(e-t)*i}};class 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server/static/chart.min_4.4.0.js

@@ -0,0 +1,20 @@
+/**
+ * Skipped minification because the original files appears to be already minified.
+ * Original file: /npm/chart.js@4.4.0/dist/chart.umd.js
+ *
+ * Do NOT use SRI with dynamically generated files! More information: https://www.jsdelivr.com/using-sri-with-dynamic-files
+ */
+/*!
+ * Chart.js v4.4.0
+ * https://www.chartjs.org
+ * (c) 2023 Chart.js Contributors
+ * Released under the MIT License
+ */
+!function(t,e){"object"==typeof exports&&"undefined"!=typeof module?module.exports=e():"function"==typeof define&&define.amd?define(e):(t="undefined"!=typeof globalThis?globalThis:t||self).Chart=e()}(this,(function(){"use strict";var t=Object.freeze({__proto__:null,get Colors(){return Go},get Decimation(){return Qo},get Filler(){return ma},get Legend(){return ya},get SubTitle(){return ka},get Title(){return Ma},get Tooltip(){return Ba}});function e(){}const i=(()=>{let t=0;return()=>t++})();function s(t){return null==t}function n(t){if(Array.isArray&&Array.isArray(t))return!0;const e=Object.prototype.toString.call(t);return"[object"===e.slice(0,7)&&"Array]"===e.slice(-6)}function o(t){return null!==t&&"[object Object]"===Object.prototype.toString.call(t)}function a(t){return("number"==typeof t||t instanceof Number)&&isFinite(+t)}function r(t,e){return a(t)?t:e}function l(t,e){return void 0===t?e:t}const h=(t,e)=>"string"==typeof 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+/*!
+ * @kurkle/color v0.3.2
+ * https://github.com/kurkle/color#readme
+ * (c) 2023 Jukka Kurkela
+ * Released under the MIT License
+ */function _t(t){return t+.5|0}const yt=(t,e,i)=>Math.max(Math.min(t,i),e);function vt(t){return yt(_t(2.55*t),0,255)}function Mt(t){return yt(_t(255*t),0,255)}function wt(t){return yt(_t(t/2.55)/100,0,1)}function kt(t){return yt(_t(100*t),0,100)}const St={0:0,1:1,2:2,3:3,4:4,5:5,6:6,7:7,8:8,9:9,A:10,B:11,C:12,D:13,E:14,F:15,a:10,b:11,c:12,d:13,e:14,f:15},Pt=[..."0123456789ABCDEF"],Dt=t=>Pt[15&t],Ct=t=>Pt[(240&t)>>4]+Pt[15&t],Ot=t=>(240&t)>>4==(15&t);function At(t){var e=(t=>Ot(t.r)&&Ot(t.g)&&Ot(t.b)&&Ot(t.a))(t)?Dt:Ct;return t?"#"+e(t.r)+e(t.g)+e(t.b)+((t,e)=>t<255?e(t):"")(t.a,e):void 0}const Tt=/^(hsla?|hwb|hsv)\(\s*([-+.e\d]+)(?:deg)?[\s,]+([-+.e\d]+)%[\s,]+([-+.e\d]+)%(?:[\s,]+([-+.e\d]+)(%)?)?\s*\)$/;function Lt(t,e,i){const s=e*Math.min(i,1-i),n=(e,n=(e+t/30)%12)=>i-s*Math.max(Math.min(n-3,9-n,1),-1);return[n(0),n(8),n(4)]}function Et(t,e,i){const s=(s,n=(s+t/60)%6)=>i-i*e*Math.max(Math.min(n,4-n,1),0);return[s(5),s(3),s(1)]}function Rt(t,e,i){const s=Lt(t,1,.5);let 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+//# sourceMappingURL=chart.umd.js.map

server/static/chartjs-adapter-moment_1.0.1.js

@@ -0,0 +1,7 @@
+/*!
+  * chartjs-adapter-moment v1.0.1
+  * https://www.chartjs.org
+  * (c) 2022 chartjs-adapter-moment Contributors
+  * Released under the MIT license
+  */
+!function(e,t){"object"==typeof exports&&"undefined"!=typeof module?t(require("moment"),require("chart.js")):"function"==typeof define&&define.amd?define(["moment","chart.js"],t):t((e="undefined"!=typeof globalThis?globalThis:e||self).moment,e.Chart)}(this,(function(e,t){"use strict";function n(e){return e&&"object"==typeof e&&"default"in e?e:{default:e}}var f=n(e);const a={datetime:"MMM D, YYYY, h:mm:ss a",millisecond:"h:mm:ss.SSS a",second:"h:mm:ss a",minute:"h:mm a",hour:"hA",day:"MMM D",week:"ll",month:"MMM YYYY",quarter:"[Q]Q - YYYY",year:"YYYY"};t._adapters._date.override("function"==typeof f.default?{_id:"moment",formats:function(){return a},parse:function(e,t){return"string"==typeof e&&"string"==typeof t?e=f.default(e,t):e instanceof f.default||(e=f.default(e)),e.isValid()?e.valueOf():null},format:function(e,t){return f.default(e).format(t)},add:function(e,t,n){return f.default(e).add(t,n).valueOf()},diff:function(e,t,n){return f.default(e).diff(f.default(t),n)},startOf:function(e,t,n){return e=f.default(e),"isoWeek"===t?(n=Math.trunc(Math.min(Math.max(0,n),6)),e.isoWeekday(n).startOf("day").valueOf()):e.startOf(t).valueOf()},endOf:function(e,t){return f.default(e).endOf(t).valueOf()}}:{})}));

server/static/instance.js

@@ -0,0 +1,106 @@
+let chart = undefined;
+document.addEventListener("DOMContentLoaded", function() {
+    const startDateInput = document.getElementById('startDate');
+    const endDateInput = document.getElementById('endDate');
+    const submitTime = document.getElementById('submitDateRange');
+
+    // Set initial values in UTC
+    const initialEndDate = moment.utc();
+    const initialStartDate = moment().subtract(14, 'days').utc();
+    startDateInput.value = initialStartDate.format('YYYY-MM-DD');
+    endDateInput.value = initialEndDate.format('YYYY-MM-DD');;
+
+    submitTime.addEventListener('click', function() {
+        const startDate = moment(startDateInput.value, 'YYYY-MM-DD');
+        const endDate = moment(endDateInput.value, 'YYYY-MM-DD');
+
+        if (!startDate.isValid() || !endDate.isValid()) {
+            alert('Invalid date format. Please use the YYYY-MM-DD format.');
+        } else if (startDate.isAfter(endDate)) {
+            alert('Invalid date range. Start date must be before the end date.');
+        } else {
+            fetchDataAndCreateChart(startDate,endDate);
+        }
+    });
+    fetchDataAndCreateChart(initialStartDate,initialEndDate);
+});
+
+async function fetchDataAndCreateChart(startDate,endDate) {
+    let jsonData;
+    try {
+        const response = await fetch('/admin/api/history/'+document.getElementById('graph').getAttribute('data-host'), {
+            method: "POST",
+                headers: {
+                "Content-Type": "application/json",
+            },
+            body: JSON.stringify({"start": startDate.utc(), "end": endDate.add(1, 'days').utc()})
+        });
+        jsonData = await response.json();
+        
+    } catch (error) {
+        console.error('Failed to fetch data:', error);
+    }
+    if (jsonData) {
+        createChart(jsonData);
+    }
+}
+
+function createChart(jsonData) {
+    const timeLabels = jsonData.map(dataPoint => new Date(dataPoint.time * 1000));
+    console.log(timeLabels);
+    const healthyData = jsonData.map(dataPoint => dataPoint.healthy ? (dataPoint.resp_time ? dataPoint.resp_time : 0) : null);
+    const unhealthyData = jsonData.map(dataPoint => dataPoint.healthy ? null : (dataPoint.resp_time ? dataPoint.resp_time : 0));
+
+    const ctx = document.getElementById('graph').getContext('2d');
+    if (chart) {
+        chart.destroy();
+    }
+    chart = new Chart(ctx, {
+        type: 'line',
+        data: {
+            labels: timeLabels,
+            datasets: [
+                {
+                    label: 'Healthy',
+                    data: healthyData,
+                    borderColor: 'green',
+                    fill: false,
+                },
+                {
+                    label: 'Unhealthy',
+                    data: unhealthyData,
+                    borderColor: 'red',
+                    fill: false,
+                },
+            ]
+        },
+        options: {
+            scales: {
+                x: {
+                    type: 'time',
+                    // time: {
+                    //     // unit: 'hour'
+                    // },
+                    scaleLabel: {
+                        display: true,
+                        labelString: 'Time'
+                    }
+                },
+                y: {
+                    scaleLabel: {
+                        display: true,
+                        labelString: 'Response Time'
+                    }
+                }
+            }
+        }
+    });
+
+    document.getElementById('graph').onclick = function (evt) {
+        const activePoints = chart.getElementsAtEventForMode(evt, 'index', {intersect: true});
+        if (activePoints.length > 0) {
+            const timestamp = jsonData[activePoints[0]._index].time;
+            document.getElementById("error_"+timestamp).scrollIntoView();
+        }
+    };
+}

server/static/moment.min_2.29.4.js

@@ -0,0 +1,15 @@
+/**
+ * Minified by jsDelivr using Terser v5.14.1.
+ * Original file: /npm/moment@2.29.4/moment.js
+ *
+ * Do NOT use SRI with dynamically generated files! More information: https://www.jsdelivr.com/using-sri-with-dynamic-files
+ */
+//! moment.js
+//! version : 2.29.4
+//! authors : Tim Wood, Iskren Chernev, Moment.js contributors
+//! license : MIT
+//! momentjs.com
+!function(e,t){"object"==typeof exports&&"undefined"!=typeof module?module.exports=t():"function"==typeof define&&define.amd?define(t):e.moment=t()}(this,(function(){"use strict";var e,t;function n(){return e.apply(null,arguments)}function s(e){return e instanceof Array||"[object Array]"===Object.prototype.toString.call(e)}function i(e){return null!=e&&"[object Object]"===Object.prototype.toString.call(e)}function r(e,t){return Object.prototype.hasOwnProperty.call(e,t)}function a(e){if(Object.getOwnPropertyNames)return 0===Object.getOwnPropertyNames(e).length;var t;for(t in e)if(r(e,t))return!1;return!0}function o(e){return void 0===e}function u(e){return"number"==typeof e||"[object Number]"===Object.prototype.toString.call(e)}function l(e){return e instanceof Date||"[object Date]"===Object.prototype.toString.call(e)}function h(e,t){var n,s=[],i=e.length;for(n=0;n<i;++n)s.push(t(e[n],n));return s}function d(e,t){for(var n in t)r(t,n)&&(e[n]=t[n]);return r(t,"toString")&&(e.toString=t.toString),r(t,"valueOf")&&(e.valueOf=t.valueOf),e}function c(e,t,n,s){return Dt(e,t,n,s,!0).utc()}function f(e){return null==e._pf&&(e._pf={empty:!1,unusedTokens:[],unusedInput:[],overflow:-2,charsLeftOver:0,nullInput:!1,invalidEra:null,invalidMonth:null,invalidFormat:!1,userInvalidated:!1,iso:!1,parsedDateParts:[],era:null,meridiem:null,rfc2822:!1,weekdayMismatch:!1}),e._pf}function m(e){if(null==e._isValid){var n=f(e),s=t.call(n.parsedDateParts,(function(e){return null!=e})),i=!isNaN(e._d.getTime())&&n.overflow<0&&!n.empty&&!n.invalidEra&&!n.invalidMonth&&!n.invalidWeekday&&!n.weekdayMismatch&&!n.nullInput&&!n.invalidFormat&&!n.userInvalidated&&(!n.meridiem||n.meridiem&&s);if(e._strict&&(i=i&&0===n.charsLeftOver&&0===n.unusedTokens.length&&void 0===n.bigHour),null!=Object.isFrozen&&Object.isFrozen(e))return i;e._isValid=i}return e._isValid}function _(e){var t=c(NaN);return null!=e?d(f(t),e):f(t).userInvalidated=!0,t}t=Array.prototype.some?Array.prototype.some:function(e){var t,n=Object(this),s=n.length>>>0;for(t=0;t<s;t++)if(t in n&&e.call(this,n[t],t,n))return!0;return!1};var y=n.momentProperties=[],g=!1;function w(e,t){var n,s,i,r=y.length;if(o(t._isAMomentObject)||(e._isAMomentObject=t._isAMomentObject),o(t._i)||(e._i=t._i),o(t._f)||(e._f=t._f),o(t._l)||(e._l=t._l),o(t._strict)||(e._strict=t._strict),o(t._tzm)||(e._tzm=t._tzm),o(t._isUTC)||(e._isUTC=t._isUTC),o(t._offset)||(e._offset=t._offset),o(t._pf)||(e._pf=f(t)),o(t._locale)||(e._locale=t._locale),r>0)for(n=0;n<r;n++)o(i=t[s=y[n]])||(e[s]=i);return e}function p(e){w(this,e),this._d=new Date(null!=e._d?e._d.getTime():NaN),this.isValid()||(this._d=new Date(NaN)),!1===g&&(g=!0,n.updateOffset(this),g=!1)}function v(e){return e instanceof p||null!=e&&null!=e._isAMomentObject}function k(e){!1===n.suppressDeprecationWarnings&&"undefined"!=typeof console&&console.warn&&console.warn("Deprecation warning: "+e)}function M(e,t){var s=!0;return d((function(){if(null!=n.deprecationHandler&&n.deprecationHandler(null,e),s){var i,a,o,u=[],l=arguments.length;for(a=0;a<l;a++){if(i="","object"==typeof arguments[a]){for(o in i+="\n["+a+"] ",arguments[0])r(arguments[0],o)&&(i+=o+": "+arguments[0][o]+", ");i=i.slice(0,-2)}else i=arguments[a];u.push(i)}k(e+"\nArguments: "+Array.prototype.slice.call(u).join("")+"\n"+(new Error).stack),s=!1}return t.apply(this,arguments)}),t)}var D,S={};function Y(e,t){null!=n.deprecationHandler&&n.deprecationHandler(e,t),S[e]||(k(t),S[e]=!0)}function O(e){return"undefined"!=typeof Function&&e instanceof Function||"[object Function]"===Object.prototype.toString.call(e)}function b(e,t){var n,s=d({},e);for(n in t)r(t,n)&&(i(e[n])&&i(t[n])?(s[n]={},d(s[n],e[n]),d(s[n],t[n])):null!=t[n]?s[n]=t[n]:delete s[n]);for(n in e)r(e,n)&&!r(t,n)&&i(e[n])&&(s[n]=d({},s[n]));return s}function x(e){null!=e&&this.set(e)}n.suppressDeprecationWarnings=!1,n.deprecationHandler=null,D=Object.keys?Object.keys:function(e){var t,n=[];for(t in e)r(e,t)&&n.push(t);return n};function T(e,t,n){var s=""+Math.abs(e),i=t-s.length;return(e>=0?n?"+":"":"-")+Math.pow(10,Math.max(0,i)).toString().substr(1)+s}var N=/(\[[^\[]*\])|(\\)?([Hh]mm(ss)?|Mo|MM?M?M?|Do|DDDo|DD?D?D?|ddd?d?|do?|w[o|w]?|W[o|W]?|Qo?|N{1,5}|YYYYYY|YYYYY|YYYY|YY|y{2,4}|yo?|gg(ggg?)?|GG(GGG?)?|e|E|a|A|hh?|HH?|kk?|mm?|ss?|S{1,9}|x|X|zz?|ZZ?|.)/g,P=/(\[[^\[]*\])|(\\)?(LTS|LT|LL?L?L?|l{1,4})/g,R={},W={};function C(e,t,n,s){var i=s;"string"==typeof s&&(i=function(){return this[s]()}),e&&(W[e]=i),t&&(W[t[0]]=function(){return T(i.apply(this,arguments),t[1],t[2])}),n&&(W[n]=function(){return this.localeData().ordinal(i.apply(this,arguments),e)})}function H(e,t){return e.isValid()?(t=U(t,e.localeData()),R[t]=R[t]||function(e){var t,n,s,i=e.match(N);for(t=0,n=i.length;t<n;t++)W[i[t]]?i[t]=W[i[t]]:i[t]=(s=i[t]).match(/\[[\s\S]/)?s.replace(/^\[|\]$/g,""):s.replace(/\\/g,"");return function(t){var s,r="";for(s=0;s<n;s++)r+=O(i[s])?i[s].call(t,e):i[s];return r}}(t),R[t](e)):e.localeData().invalidDate()}function U(e,t){var n=5;function s(e){Line truncated
+//! moment.js
+n.version="2.29.4",e=St,n.fn=pn,n.min=function(){var e=[].slice.call(arguments,0);return bt("isBefore",e)},n.max=function(){var e=[].slice.call(arguments,0);return bt("isAfter",e)},n.now=function(){return Date.now?Date.now():+new Date},n.utc=c,n.unix=function(e){return St(1e3*e)},n.months=function(e,t){return Dn(e,t,"months")},n.isDate=l,n.locale=it,n.invalid=_,n.duration=Gt,n.isMoment=v,n.weekdays=function(e,t,n){return Sn(e,t,n,"weekdays")},n.parseZone=function(){return St.apply(null,arguments).parseZone()},n.localeData=at,n.isDuration=Nt,n.monthsShort=function(e,t){return Dn(e,t,"monthsShort")},n.weekdaysMin=function(e,t,n){return Sn(e,t,n,"weekdaysMin")},n.defineLocale=rt,n.updateLocale=function(e,t){if(null!=t){var n,s,i=Xe;null!=Ke[e]&&null!=Ke[e].parentLocale?Ke[e].set(b(Ke[e]._config,t)):(null!=(s=st(e))&&(i=s._config),t=b(i,t),null==s&&(t.abbr=e),(n=new x(t)).parentLocale=Ke[e],Ke[e]=n),it(e)}else null!=Ke[e]&&(null!=Ke[e].parentLocale?(Ke[e]=Ke[e].parentLocale,e===it()&&it(e)):null!=Ke[e]&&delete Ke[e]);return Ke[e]},n.locales=function(){return D(Ke)},n.weekdaysShort=function(e,t,n){return Sn(e,t,n,"weekdaysShort")},n.normalizeUnits=V,n.relativeTimeRounding=function(e){return void 0===e?qn:"function"==typeof e&&(qn=e,!0)},n.relativeTimeThreshold=function(e,t){return void 0!==Bn[e]&&(void 0===t?Bn[e]:(Bn[e]=t,"s"===e&&(Bn.ss=t-1),!0))},n.calendarFormat=function(e,t){var n=e.diff(t,"days",!0);return n<-6?"sameElse":n<-1?"lastWeek":n<0?"lastDay":n<1?"sameDay":n<2?"nextDay":n<7?"nextWeek":"sameElse"},n.prototype=pn,n.HTML5_FMT={DATETIME_LOCAL:"YYYY-MM-DDTHH:mm",DATETIME_LOCAL_SECONDS:"YYYY-MM-DDTHH:mm:ss",DATETIME_LOCAL_MS:"YYYY-MM-DDTHH:mm:ss.SSS",DATE:"YYYY-MM-DD",TIME:"HH:mm",TIME_SECONDS:"HH:mm:ss",TIME_MS:"HH:mm:ss.SSS",WEEK:"GGGG-[W]WW",MONTH:"YYYY-MM"},n}));
+//# sourceMappingURL=/sm/67dbe90480f98dbadab5f76f93197118b03ce65a6932fed6c64b024935f736b4.map

server/static/overview_admin.js

@@ -1,99 +0,0 @@
-const config = {
-    type: 'line',
-    data: data,
-    options: {
-      responsive: true,
-      plugins: {
-        legend: {
-          position: 'top',
-        },
-        title: {
-          display: true,
-          text: 'Chart.js Line Chart'
-        }
-      }
-    },
-  };
-
-const DATA_COUNT = 7;
-const NUMBER_CFG = {count: DATA_COUNT, min: -100, max: 100};
-
-const labels = Utils.months({count: 7});
-const data = {
-  labels: labels,
-  datasets: [
-    {
-      label: 'Dataset 1',
-      data: Utils.numbers(NUMBER_CFG),
-      borderColor: Utils.CHART_COLORS.red,
-      backgroundColor: Utils.transparentize(Utils.CHART_COLORS.red, 0.5),
-    },
-    // {
-    //   label: 'Dataset 2',
-    //   data: Utils.numbers(NUMBER_CFG),
-    //   borderColor: Utils.CHART_COLORS.blue,
-    //   backgroundColor: Utils.transparentize(Utils.CHART_COLORS.blue, 0.5),
-    // }
-  ]
-};
-
-const actions = [
-{
-    name: 'Randomize',
-    handler(chart) {
-    chart.data.datasets.forEach(dataset => {
-        dataset.data = Utils.numbers({count: chart.data.labels.length, min: -100, max: 100});
-    });
-    chart.update();
-    }
-},
-{
-    name: 'Add Dataset',
-    handler(chart) {
-    const data = chart.data;
-    const dsColor = Utils.namedColor(chart.data.datasets.length);
-    const newDataset = {
-        label: 'Dataset ' + (data.datasets.length + 1),
-        backgroundColor: Utils.transparentize(dsColor, 0.5),
-        borderColor: dsColor,
-        data: Utils.numbers({count: data.labels.length, min: -100, max: 100}),
-    };
-    chart.data.datasets.push(newDataset);
-    chart.update();
-    }
-},
-{
-    name: 'Add Data',
-    handler(chart) {
-    const data = chart.data;
-    if (data.datasets.length > 0) {
-        data.labels = Utils.months({count: data.labels.length + 1});
-
-        for (let index = 0; index < data.datasets.length; ++index) {
-        data.datasets[index].data.push(Utils.rand(-100, 100));
-        }
-
-        chart.update();
-    }
-    }
-},
-{
-    name: 'Remove Dataset',
-    handler(chart) {
-    chart.data.datasets.pop();
-    chart.update();
-    }
-},
-{
-    name: 'Remove Data',
-    handler(chart) {
-    chart.data.labels.splice(-1, 1); // remove the label first
-
-    chart.data.datasets.forEach(dataset => {
-        dataset.data.pop();
-    });
-
-    chart.update();
-    }
-}
-];

server/templates/admin.html.j2

@@ -15,7 +15,23 @@
     <p><a href="/admin/logout">Logout</a> <a href="/admin/login">Add more instances</a></p>
     
     <h4>Instances</h4>
-    {% if is_admin %}<p class="text-danger-emphasis">Admin mode.</p>{% endif %}
+    {% if is_admin %}<p class="text-danger-emphasis">root mode</p>{% endif %}
+    <div><canvas id="graph" width="600" height="200"></canvas><noscript>History feature works only with javascript enabled.</noscript></div>
+    <div class="container mt-5">
+      <form>
+          <div class="row">
+            <div class="col">
+                <label for="startDate">Start Date:</label>
+                <input type="date" class="form-control" id="startDate" name="startDate">
+            </div>
+            <div class="col">
+                <label for="endDate">End Date:</label>
+                <input type="date" class="form-control" id="endDate" name="endDate">
+            </div>
+          </div>
+          <button type="button" class="btn btn-primary mt-1" id="submitDateRange">Change</button>
+      </form>
+    </div>
     <div class="table-responsive">
       <table id="status-tbl" class="table sortable table-hover table-sm">
       <thead>
@@ -28,13 +44,15 @@
         <tr>
           <td>{{instance.domain}}</td>
           {# <td><a href="/admin/history/{{instance.id}}">History</a></td> #}
-          <td><a href="/admin/errors/{{instance.id}}">Errors</a></td>
+          <td><a href="/admin/instance/{{instance.id}}">Errors</a></td>
         </tr>
         {%- endfor %}
       </tbody>
       </table>
     </div>
-
-    <p>License: AGPL3</p>
+    <script src="/static/moment.min_2.29.4.js"></script>
+    <script src="/static/chart.min_4.4.0.js"></script>
+    <script src="/static/chartjs-adapter-moment_1.0.1.js"></script>
+    <script src="/static/admin.js"></script>
   </body>
 </html>

server/templates/history_admin.html.j2

@@ -18,8 +18,6 @@
     <div id="chart">
       
     </div>
-
-    <p>License: AGPL3</p>
     <script src="/static/overview_admin.js"></script>
     <script src="/static/chart.min.js"></script>
   </body>

server/templates/instance_admin.html.j2

@@ -13,7 +13,22 @@
     <div class="container">
     <h1>Admin Interface</h1>
     <p><a href="/admin">Overview</a> <a href="/admin/logout">Logout</a> <a href="/admin/login">Add more instances</a></p>
-    
+    <div><canvas data-host="{{HOST_ID}}" id="graph" width="600" height="200"></canvas><noscript>History feature works only with javascript enabled.</noscript></div>
+    <div class="container mt-5">
+      <form>
+          <div class="row">
+            <div class="col">
+                <label for="startDate">Start Date:</label>
+                <input type="date" class="form-control" id="startDate" name="startDate">
+            </div>
+            <div class="col">
+                <label for="endDate">End Date:</label>
+                <input type="date" class="form-control" id="endDate" name="endDate">
+            </div>
+          </div>
+          <button type="button" class="btn btn-primary mt-1" id="submitDateRange">Change</button>
+      </form>
+    </div>
     <h4>Last errors from {{HOST_DOMAIN}}</h4>
     <div class="table-responsive">
       <table id="status-tbl" class="table sortable table-hover table-sm">
@@ -27,7 +42,7 @@
       </thead>
       <tbody>
         {% for error in ERRORS -%}
-        <tr>
+        <tr id="error_{{error.time}}">
           <td>{{fmt_date(value=error.time)}}</td>
           <td>{{error.message}}</td>
           <td>{{error.http_body}}</td>
@@ -37,7 +52,9 @@
       </tbody>
       </table>
     </div>
-
-    <p>License: AGPL3</p>
+    <script src="/static/moment.min_2.29.4.js"></script>
+    <script src="/static/chart.min_4.4.0.js"></script>
+    <script src="/static/chartjs-adapter-moment_1.0.1.js"></script>
+    <script src="/static/instance.js"></script>
   </body>
 </html>