cfab277dc4
Drei eng zusammenhaengende Aenderungen in einem Commit, da sie dieselbe
Template-Infrastruktur teilen und gemeinsam die HTML-Diagnoseansicht
abrunden:
1. CSS-Extraktion (Verbesserung, kein Verhalten geaendert)
Das bisherige Inline-CSS wurde in die Konstante statusPageCSS
ausgelagert. statusPageCSSBlock injiziert es per String-Konkatenation
in alle Templates, sodass kein Template-Inheritance-Mechanismus
benoetigt wird und jede Seite eigenstaendig ausfuehrbar bleibt.
2. GET /status/{screenId} -- neue HTML-Detailseite
Zeigt den letzten bekannten Datensatz eines einzelnen Screens:
Derived State, Player-Status, Connectivity und Frische als
Summary-Cards; Timing- und Endpoints-Details in aufgeraeuemten
Key-Value-Tabellen. Verlinkung zurueck auf /status und auf den
bestehenden JSON-Endpunkt. Bei unbekanntem Screen: 404 mit HTML-
Fehlerseite und Rueck-Link.
Route: GET /status/{screenId}
3. HTML-Fehlerseite fuer /status bei ungueltigen Query-Parametern
Bisher lieferte handleStatusPage einen rohen JSON-Fehler, wenn
z.B. ?stale=banana uebergeben wurde -- inkongruent fuer einen
HTML-Endpunkt. writeStatusPageQueryError rendert jetzt dasselbe
statusPageErrorTemplate wie der Not-Found-Fall der Detailseite
und gibt text/html mit 400 zurueck.
Neue Tests (router_test.go):
- ScreenDetailPageRoute: prueft Inhalt, Links, Content-Type
- ScreenDetailPageNotFound: prueft 404 + HTML + Rueck-Link
- StatusPageRejectsInvalidQueryParams: prueft jetzt auch text/html
fuer alle Fehlerfaelle
Docs (PLAYER-STATUS-HTTP.md):
- Query-Parameter-Validierung mit erlaubten Werten und Fehlercodes
- Neue /status/{screenId}-Seite und HTML-Fehlerseiten dokumentiert
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
926 lines
26 KiB
Go
926 lines
26 KiB
Go
package httpapi
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import (
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"html/template"
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"net/http"
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"net/url"
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"strings"
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"time"
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)
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type statusPageData struct {
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GeneratedAt string
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RefreshSeconds int
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Filters statusPageFilters
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QuickFilters []statusFilterLink
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Overview screenStatusOverview
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StatusAPIPath string
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StatusPagePath string
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}
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type statusPageFilters struct {
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ServerConnectivity string
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Stale string
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UpdatedSince string
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Limit string
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}
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type statusFilterLink struct {
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Label string
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Href string
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Class string
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Active bool
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}
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type screenDetailPageData struct {
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GeneratedAt string
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Record playerStatusRecord
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StatusPagePath string
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}
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type statusPageErrorData struct {
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Message string
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StatusPagePath string
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}
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// statusPageCSS is the shared stylesheet for all status page templates.
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// It is injected via string concatenation at parse time so that each template
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// is self-contained and can be executed independently without template inheritance.
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const statusPageCSS = `
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:root {
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color-scheme: light;
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--bg: #f4efe7;
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--surface: rgba(255, 252, 247, 0.94);
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--surface-strong: #fffdf9;
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--text: #1d2935;
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--muted: #5d6b78;
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--border: rgba(29, 41, 53, 0.12);
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--online: #2f7d4a;
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--degraded: #9a6a18;
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--offline: #a43b32;
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--shadow: 0 18px 40px rgba(63, 46, 26, 0.12);
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}
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* { box-sizing: border-box; }
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body {
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margin: 0;
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font-family: Georgia, "Times New Roman", serif;
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background:
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radial-gradient(circle at top left, rgba(191, 148, 77, 0.18), transparent 30%),
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linear-gradient(180deg, #f8f4ed 0%, var(--bg) 100%);
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color: var(--text);
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}
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.page {
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max-width: 1100px;
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margin: 0 auto;
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padding: 32px 20px 48px;
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}
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.hero,
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.panel {
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background: var(--surface);
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border: 1px solid var(--border);
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border-radius: 22px;
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box-shadow: var(--shadow);
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backdrop-filter: blur(8px);
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}
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.hero {
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padding: 28px;
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margin-bottom: 20px;
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}
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h1,
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h2 {
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margin: 0;
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font-weight: 600;
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letter-spacing: -0.02em;
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}
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h1 {
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font-size: clamp(2rem, 4vw, 3.2rem);
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margin-bottom: 10px;
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}
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h2 {
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font-size: 1.2rem;
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margin-bottom: 18px;
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}
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.lead,
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.meta,
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.empty,
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td small {
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color: var(--muted);
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}
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.lead {
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margin: 0;
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max-width: 46rem;
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line-height: 1.5;
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}
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.hero-top {
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display: flex;
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gap: 16px;
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justify-content: space-between;
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align-items: flex-start;
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flex-wrap: wrap;
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margin-bottom: 24px;
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}
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.hero-top .meta {
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text-align: right;
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min-width: 12rem;
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font-size: 0.95rem;
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line-height: 1.5;
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}
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.summary-grid {
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display: grid;
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grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
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gap: 12px;
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}
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.summary-card {
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padding: 16px;
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border-radius: 18px;
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background: var(--surface-strong);
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border: 1px solid var(--border);
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}
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.summary-card strong {
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display: block;
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font-size: 1.8rem;
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margin-bottom: 4px;
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}
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.summary-card span {
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color: var(--muted);
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font-size: 0.95rem;
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}
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.summary-card.offline strong,
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.state.offline,
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.pill.offline { color: var(--offline); }
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.summary-card.degraded strong,
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.state.degraded,
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.pill.degraded { color: var(--degraded); }
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.summary-card.online strong,
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.state.online,
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.pill.online { color: var(--online); }
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.panel {
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padding: 24px;
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}
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.panel + .panel {
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margin-top: 18px;
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}
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.panel-head {
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display: flex;
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align-items: flex-start;
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justify-content: space-between;
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gap: 12px;
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flex-wrap: wrap;
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margin-bottom: 18px;
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}
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.panel-head h2 {
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margin-bottom: 6px;
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}
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.panel-copy {
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margin: 0;
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color: var(--muted);
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line-height: 1.5;
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}
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.meta-chip,
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.filter-link,
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.json-link,
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.text-link {
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display: inline-flex;
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align-items: center;
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gap: 6px;
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border-radius: 999px;
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border: 1px solid var(--border);
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padding: 6px 12px;
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color: inherit;
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text-decoration: none;
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background: rgba(255, 255, 255, 0.65);
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}
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.meta-chip {
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color: var(--muted);
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font-size: 0.9rem;
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}
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.controls-grid {
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display: grid;
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grid-template-columns: minmax(0, 1.5fr) minmax(0, 1fr);
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gap: 18px;
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}
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.quick-filters {
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display: flex;
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gap: 10px;
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flex-wrap: wrap;
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align-items: flex-start;
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}
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.filter-link.active {
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border-color: rgba(29, 41, 53, 0.28);
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background: var(--surface-strong);
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color: var(--text);
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box-shadow: inset 0 0 0 1px rgba(29, 41, 53, 0.05);
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}
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.filter-link.offline.active { color: var(--offline); }
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.filter-link.degraded.active { color: var(--degraded); }
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.filter-link.online.active { color: var(--online); }
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.filter-form {
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display: grid;
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grid-template-columns: repeat(2, minmax(0, 1fr));
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gap: 12px;
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}
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.field {
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display: flex;
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flex-direction: column;
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gap: 6px;
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}
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.field label {
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color: var(--muted);
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font-size: 0.82rem;
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text-transform: uppercase;
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letter-spacing: 0.08em;
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}
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.field input,
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.field select {
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width: 100%;
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border-radius: 12px;
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border: 1px solid var(--border);
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background: var(--surface-strong);
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color: var(--text);
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padding: 10px 12px;
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font: inherit;
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}
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.field.full {
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grid-column: 1 / -1;
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}
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.form-actions {
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display: flex;
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gap: 10px;
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flex-wrap: wrap;
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align-items: center;
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grid-column: 1 / -1;
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padding-top: 4px;
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}
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button {
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border: 0;
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border-radius: 999px;
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padding: 10px 16px;
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background: var(--text);
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color: #fffdf9;
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font: inherit;
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cursor: pointer;
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}
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.json-link,
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.text-link {
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color: var(--muted);
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font-size: 0.9rem;
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}
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.table-actions {
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margin-bottom: 16px;
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display: flex;
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gap: 10px;
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flex-wrap: wrap;
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align-items: center;
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}
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.table-wrap {
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overflow-x: auto;
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}
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table {
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width: 100%;
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border-collapse: collapse;
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min-width: 720px;
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}
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th,
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td {
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padding: 14px 0;
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border-bottom: 1px solid var(--border);
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text-align: left;
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vertical-align: top;
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}
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th {
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color: var(--muted);
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font-size: 0.82rem;
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text-transform: uppercase;
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letter-spacing: 0.08em;
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}
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tbody tr:last-child td {
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border-bottom: 0;
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}
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.screen {
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font-weight: 600;
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margin-bottom: 4px;
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}
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.screen-links {
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display: flex;
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gap: 8px;
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flex-wrap: wrap;
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margin-top: 10px;
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}
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.pill {
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display: inline-flex;
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align-items: center;
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gap: 6px;
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border-radius: 999px;
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border: 1px solid currentColor;
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padding: 4px 10px;
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font-size: 0.84rem;
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text-transform: capitalize;
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background: rgba(255, 255, 255, 0.5);
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}
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.empty {
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padding: 10px 0 4px;
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line-height: 1.5;
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}
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/* Key-value detail tables used on the screen detail page. */
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.detail-table {
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min-width: 0;
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}
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.detail-table th {
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font-weight: normal;
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white-space: nowrap;
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padding-right: 24px;
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width: 40%;
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}
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.detail-table tbody tr:last-child th,
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.detail-table tbody tr:last-child td {
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border-bottom: 0;
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}
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@media (max-width: 720px) {
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.page {
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padding: 20px 14px 32px;
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}
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.hero,
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.panel {
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border-radius: 18px;
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}
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.hero {
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padding: 22px;
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}
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.panel {
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padding: 18px;
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}
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.hero-top .meta {
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text-align: left;
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}
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.controls-grid,
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.filter-form {
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grid-template-columns: 1fr;
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}
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.detail-table th {
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width: auto;
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}
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}
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`
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// statusPageCSSBlock wraps statusPageCSS in a <style> element.
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// Each template embeds it via string concatenation so that no template
|
||
// inheritance is needed and every page is independently executable.
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const statusPageCSSBlock = ` <style>` + statusPageCSS + ` </style>`
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var statusTemplateFuncs = template.FuncMap{
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"connectivityLabel": connectivityLabel,
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"screenDetailPath": screenDetailPath,
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"screenDetailHTMLPath": screenDetailHTMLPath,
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"statusClass": statusClass,
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"timestampLabel": timestampLabel,
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}
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var statusPageTemplate = template.Must(template.New("status-page").Funcs(statusTemplateFuncs).Parse(`<!DOCTYPE html>
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<html lang="en">
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<head>
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<meta charset="utf-8">
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<meta name="viewport" content="width=device-width, initial-scale=1">
|
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<meta http-equiv="refresh" content="{{.RefreshSeconds}}">
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<title>Screen Status</title>
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` + statusPageCSSBlock + `
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</head>
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<body>
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<main class="page">
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<section class="hero">
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<div class="hero-top">
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<div>
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<h1>Screen Status</h1>
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<p class="lead">A compact browser view of the latest screen reports from the current in-memory status overview. Offline and degraded screens stay at the top for quick diagnostics.</p>
|
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</div>
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<div class="meta">
|
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<div>{{.Overview.Summary.Total}} screens</div>
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<div>Updated {{.GeneratedAt}}</div>
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</div>
|
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</div>
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<div class="summary-grid">
|
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<article class="summary-card">
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<strong>{{.Overview.Summary.Total}}</strong>
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<span>Total known screens</span>
|
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</article>
|
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<article class="summary-card offline">
|
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<strong>{{.Overview.Summary.Offline}}</strong>
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<span>Offline</span>
|
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</article>
|
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<article class="summary-card degraded">
|
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<strong>{{.Overview.Summary.Degraded}}</strong>
|
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<span>Degraded</span>
|
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</article>
|
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<article class="summary-card online">
|
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<strong>{{.Overview.Summary.Online}}</strong>
|
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<span>Online</span>
|
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</article>
|
||
<article class="summary-card">
|
||
<strong>{{.Overview.Summary.Stale}}</strong>
|
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<span>Stale reports</span>
|
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</article>
|
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</div>
|
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</section>
|
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|
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<section class="panel">
|
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<div class="panel-head">
|
||
<div>
|
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<h2>Filters and refresh</h2>
|
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<p class="panel-copy">This page refreshes every {{.RefreshSeconds}} seconds. Use the shortcut links or the form to narrow the existing connectivity and freshness filters without leaving the lightweight server-rendered flow.</p>
|
||
</div>
|
||
<a class="meta-chip" href="{{.StatusAPIPath}}">JSON overview</a>
|
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</div>
|
||
|
||
<div class="controls-grid">
|
||
<div>
|
||
<h2>Quick views</h2>
|
||
<div class="quick-filters">
|
||
{{range .QuickFilters}}
|
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<a class="filter-link {{.Class}} {{if .Active}}active{{end}}" href="{{.Href}}">{{.Label}}</a>
|
||
{{end}}
|
||
</div>
|
||
</div>
|
||
|
||
<form class="filter-form" method="get" action="{{.StatusPagePath}}">
|
||
<div class="field">
|
||
<label for="server_connectivity">Server connectivity</label>
|
||
<select id="server_connectivity" name="server_connectivity">
|
||
<option value="" {{if eq .Filters.ServerConnectivity ""}}selected{{end}}>Any</option>
|
||
<option value="online" {{if eq .Filters.ServerConnectivity "online"}}selected{{end}}>Online</option>
|
||
<option value="degraded" {{if eq .Filters.ServerConnectivity "degraded"}}selected{{end}}>Degraded</option>
|
||
<option value="offline" {{if eq .Filters.ServerConnectivity "offline"}}selected{{end}}>Offline</option>
|
||
<option value="unknown" {{if eq .Filters.ServerConnectivity "unknown"}}selected{{end}}>Unknown</option>
|
||
</select>
|
||
</div>
|
||
|
||
<div class="field">
|
||
<label for="stale">Freshness</label>
|
||
<select id="stale" name="stale">
|
||
<option value="" {{if eq .Filters.Stale ""}}selected{{end}}>Any</option>
|
||
<option value="true" {{if eq .Filters.Stale "true"}}selected{{end}}>Stale only</option>
|
||
<option value="false" {{if eq .Filters.Stale "false"}}selected{{end}}>Fresh only</option>
|
||
</select>
|
||
</div>
|
||
|
||
<div class="field full">
|
||
<label for="updated_since">Updated since (RFC3339)</label>
|
||
<input id="updated_since" name="updated_since" type="text" placeholder="2026-03-22T16:05:00Z" value="{{.Filters.UpdatedSince}}">
|
||
</div>
|
||
|
||
<div class="field">
|
||
<label for="limit">Limit</label>
|
||
<input id="limit" name="limit" type="number" min="1" inputmode="numeric" value="{{.Filters.Limit}}">
|
||
</div>
|
||
|
||
<div class="form-actions">
|
||
<button type="submit">Apply filters</button>
|
||
<a class="text-link" href="{{.StatusPagePath}}">Clear</a>
|
||
</div>
|
||
</form>
|
||
</div>
|
||
</section>
|
||
|
||
<section class="panel">
|
||
<div class="panel-head">
|
||
<div>
|
||
<h2>Latest reports</h2>
|
||
<p class="panel-copy">Each row links to the HTML detail view and the raw JSON endpoint for a quick drill-down.</p>
|
||
</div>
|
||
</div>
|
||
<div class="table-actions">
|
||
<a class="text-link" href="{{.StatusAPIPath}}">Open filtered JSON overview</a>
|
||
</div>
|
||
{{if .Overview.Screens}}
|
||
<div class="table-wrap">
|
||
<table>
|
||
<thead>
|
||
<tr>
|
||
<th>Screen</th>
|
||
<th>Derived state</th>
|
||
<th>Player status</th>
|
||
<th>Server link</th>
|
||
<th>Received</th>
|
||
<th>Heartbeat</th>
|
||
</tr>
|
||
</thead>
|
||
<tbody>
|
||
{{range .Overview.Screens}}
|
||
<tr>
|
||
<td>
|
||
<div class="screen">{{.ScreenID}}</div>
|
||
{{if .MQTTBroker}}<small>{{.MQTTBroker}}</small>{{else if .ServerURL}}<small>{{.ServerURL}}</small>{{else}}<small>No endpoint details</small>{{end}}
|
||
<div class="screen-links">
|
||
<a class="filter-link" href="{{screenDetailHTMLPath .ScreenID}}">Details</a>
|
||
<a class="json-link" href="{{screenDetailPath .ScreenID}}">JSON</a>
|
||
</div>
|
||
</td>
|
||
<td><span class="pill {{statusClass .DerivedState}}">{{.DerivedState}}</span></td>
|
||
<td>
|
||
<div>{{.Status}}</div>
|
||
{{if .Stale}}<small>Marked stale by server freshness check</small>{{else}}<small>Fresh within expected heartbeat window</small>{{end}}
|
||
</td>
|
||
<td>
|
||
<span class="state {{statusClass .ServerConnectivity}}">{{connectivityLabel .ServerConnectivity}}</span>
|
||
{{if .ServerURL}}<small>{{.ServerURL}}</small>{{end}}
|
||
</td>
|
||
<td>
|
||
<div>{{timestampLabel .ReceivedAt}}</div>
|
||
{{if .LastHeartbeatAt}}<small>Heartbeat {{timestampLabel .LastHeartbeatAt}}</small>{{end}}
|
||
</td>
|
||
<td>
|
||
{{if gt .HeartbeatEverySeconds 0}}{{.HeartbeatEverySeconds}}s{{else}}-{{end}}
|
||
{{if .StartedAt}}<small>Started {{timestampLabel .StartedAt}}</small>{{end}}
|
||
</td>
|
||
</tr>
|
||
{{end}}
|
||
</tbody>
|
||
</table>
|
||
</div>
|
||
{{else}}
|
||
<p class="empty">No screen has reported status yet. Once a player posts to the existing status API, it will appear here automatically.</p>
|
||
{{end}}
|
||
</section>
|
||
</main>
|
||
</body>
|
||
</html>
|
||
`))
|
||
|
||
var screenDetailTemplate = template.Must(template.New("screen-detail").Funcs(statusTemplateFuncs).Parse(`<!DOCTYPE html>
|
||
<html lang="en">
|
||
<head>
|
||
<meta charset="utf-8">
|
||
<meta name="viewport" content="width=device-width, initial-scale=1">
|
||
<title>{{.Record.ScreenID}} – Screen Status</title>
|
||
` + statusPageCSSBlock + `
|
||
</head>
|
||
<body>
|
||
<main class="page">
|
||
<section class="hero">
|
||
<div class="hero-top">
|
||
<div>
|
||
<h1>{{.Record.ScreenID}}</h1>
|
||
<p class="lead">Single screen diagnostic view based on the last accepted status report.</p>
|
||
</div>
|
||
<div class="meta">
|
||
<div>Updated {{.GeneratedAt}}</div>
|
||
<div style="margin-top: 8px; display: flex; gap: 8px; flex-wrap: wrap; justify-content: flex-end;">
|
||
<a class="meta-chip" href="{{.StatusPagePath}}">← All screens</a>
|
||
<a class="meta-chip" href="{{screenDetailPath .Record.ScreenID}}">JSON</a>
|
||
</div>
|
||
</div>
|
||
</div>
|
||
|
||
<div class="summary-grid">
|
||
<article class="summary-card {{statusClass .Record.DerivedState}}">
|
||
<strong><span class="state {{statusClass .Record.DerivedState}}">{{.Record.DerivedState}}</span></strong>
|
||
<span>Derived state</span>
|
||
</article>
|
||
<article class="summary-card">
|
||
<strong>{{.Record.Status}}</strong>
|
||
<span>Player status</span>
|
||
</article>
|
||
<article class="summary-card {{statusClass .Record.ServerConnectivity}}">
|
||
<strong>{{connectivityLabel .Record.ServerConnectivity}}</strong>
|
||
<span>Server connectivity</span>
|
||
</article>
|
||
<article class="summary-card">
|
||
<strong>{{if .Record.Stale}}stale{{else}}fresh{{end}}</strong>
|
||
<span>Freshness</span>
|
||
</article>
|
||
</div>
|
||
</section>
|
||
|
||
<section class="panel">
|
||
<div class="panel-head">
|
||
<div>
|
||
<h2>Timing</h2>
|
||
<p class="panel-copy">Timestamps reported by the player and annotated by the server at receive time.</p>
|
||
</div>
|
||
</div>
|
||
<table class="detail-table">
|
||
<tbody>
|
||
<tr>
|
||
<th>Received at (server)</th>
|
||
<td>{{timestampLabel .Record.ReceivedAt}}</td>
|
||
</tr>
|
||
<tr>
|
||
<th>Player timestamp</th>
|
||
<td>{{timestampLabel .Record.Timestamp}}</td>
|
||
</tr>
|
||
<tr>
|
||
<th>Started at</th>
|
||
<td>{{timestampLabel .Record.StartedAt}}</td>
|
||
</tr>
|
||
<tr>
|
||
<th>Last heartbeat at</th>
|
||
<td>{{timestampLabel .Record.LastHeartbeatAt}}</td>
|
||
</tr>
|
||
<tr>
|
||
<th>Heartbeat interval</th>
|
||
<td>{{if gt .Record.HeartbeatEverySeconds 0}}{{.Record.HeartbeatEverySeconds}}s{{else}}-{{end}}</td>
|
||
</tr>
|
||
</tbody>
|
||
</table>
|
||
</section>
|
||
|
||
<section class="panel">
|
||
<div class="panel-head">
|
||
<div>
|
||
<h2>Endpoints</h2>
|
||
<p class="panel-copy">Connection details reported by the player in the last accepted status.</p>
|
||
</div>
|
||
</div>
|
||
<table class="detail-table">
|
||
<tbody>
|
||
<tr>
|
||
<th>Server URL</th>
|
||
<td>{{if .Record.ServerURL}}{{.Record.ServerURL}}{{else}}-{{end}}</td>
|
||
</tr>
|
||
<tr>
|
||
<th>MQTT broker</th>
|
||
<td>{{if .Record.MQTTBroker}}{{.Record.MQTTBroker}}{{else}}-{{end}}</td>
|
||
</tr>
|
||
</tbody>
|
||
</table>
|
||
</section>
|
||
</main>
|
||
</body>
|
||
</html>
|
||
`))
|
||
|
||
var statusPageErrorTemplate = template.Must(template.New("status-error").Funcs(statusTemplateFuncs).Parse(`<!DOCTYPE html>
|
||
<html lang="en">
|
||
<head>
|
||
<meta charset="utf-8">
|
||
<meta name="viewport" content="width=device-width, initial-scale=1">
|
||
<title>Invalid filter – Screen Status</title>
|
||
` + statusPageCSSBlock + `
|
||
</head>
|
||
<body>
|
||
<main class="page" style="max-width: 640px;">
|
||
<section class="hero">
|
||
<div class="hero-top">
|
||
<div>
|
||
<h1>Invalid filter</h1>
|
||
<p class="lead">{{.Message}}</p>
|
||
</div>
|
||
</div>
|
||
<a class="filter-link" href="{{.StatusPagePath}}">← Back to Screen Status</a>
|
||
</section>
|
||
</main>
|
||
</body>
|
||
</html>
|
||
`))
|
||
|
||
func handleStatusPage(store playerStatusStore) http.HandlerFunc {
|
||
return func(w http.ResponseWriter, r *http.Request) {
|
||
overview, err := buildScreenStatusOverview(store, r.URL.Query())
|
||
if err != nil {
|
||
writeStatusPageQueryError(w, err)
|
||
return
|
||
}
|
||
|
||
w.Header().Set("Content-Type", "text/html; charset=utf-8")
|
||
w.WriteHeader(http.StatusOK)
|
||
|
||
data := buildStatusPageData(store, r.URL.Query(), overview)
|
||
|
||
if err := statusPageTemplate.Execute(w, data); err != nil {
|
||
http.Error(w, "failed to render status page", http.StatusInternalServerError)
|
||
}
|
||
}
|
||
}
|
||
|
||
func handleScreenDetailPage(store playerStatusStore) http.HandlerFunc {
|
||
return func(w http.ResponseWriter, r *http.Request) {
|
||
screenID := strings.TrimSpace(r.PathValue("screenId"))
|
||
|
||
record, ok := store.Get(screenID)
|
||
if !ok {
|
||
data := statusPageErrorData{
|
||
Message: "Fuer diesen Screen liegt noch kein Status vor.",
|
||
StatusPagePath: "/status",
|
||
}
|
||
w.Header().Set("Content-Type", "text/html; charset=utf-8")
|
||
w.WriteHeader(http.StatusNotFound)
|
||
_ = statusPageErrorTemplate.Execute(w, data)
|
||
return
|
||
}
|
||
|
||
record.Stale = isStale(record, store.Now())
|
||
record.DerivedState = deriveState(record)
|
||
|
||
data := screenDetailPageData{
|
||
GeneratedAt: store.Now().Format(time.RFC3339),
|
||
Record: record,
|
||
StatusPagePath: "/status",
|
||
}
|
||
|
||
w.Header().Set("Content-Type", "text/html; charset=utf-8")
|
||
w.WriteHeader(http.StatusOK)
|
||
|
||
if err := screenDetailTemplate.Execute(w, data); err != nil {
|
||
http.Error(w, "failed to render detail page", http.StatusInternalServerError)
|
||
}
|
||
}
|
||
}
|
||
|
||
func buildStatusPageData(store playerStatusStore, query url.Values, overview screenStatusOverview) statusPageData {
|
||
filters := statusPageFilters{
|
||
ServerConnectivity: strings.TrimSpace(query.Get("server_connectivity")),
|
||
Stale: strings.TrimSpace(query.Get("stale")),
|
||
UpdatedSince: strings.TrimSpace(query.Get("updated_since")),
|
||
Limit: strings.TrimSpace(query.Get("limit")),
|
||
}
|
||
|
||
return statusPageData{
|
||
GeneratedAt: store.Now().Format(time.RFC3339),
|
||
RefreshSeconds: 15,
|
||
Filters: filters,
|
||
QuickFilters: buildStatusQuickFilters(filters),
|
||
Overview: overview,
|
||
StatusAPIPath: buildOverviewPath("/api/v1/screens/status", filters),
|
||
StatusPagePath: "/status",
|
||
}
|
||
}
|
||
|
||
func buildStatusQuickFilters(filters statusPageFilters) []statusFilterLink {
|
||
return []statusFilterLink{
|
||
{
|
||
Label: "All screens",
|
||
Href: buildStatusPageHref(statusPageFilters{Limit: filters.Limit, UpdatedSince: filters.UpdatedSince}),
|
||
Class: "",
|
||
Active: filters.ServerConnectivity == "" && filters.Stale == "",
|
||
},
|
||
{
|
||
Label: "Connectivity offline",
|
||
Href: buildStatusPageHref(statusPageFilters{ServerConnectivity: "offline", Limit: filters.Limit, UpdatedSince: filters.UpdatedSince}),
|
||
Class: "offline",
|
||
Active: filters.ServerConnectivity == "offline" && filters.Stale == "",
|
||
},
|
||
{
|
||
Label: "Connectivity degraded",
|
||
Href: buildStatusPageHref(statusPageFilters{ServerConnectivity: "degraded", Limit: filters.Limit, UpdatedSince: filters.UpdatedSince}),
|
||
Class: "degraded",
|
||
Active: filters.ServerConnectivity == "degraded" && filters.Stale == "",
|
||
},
|
||
{
|
||
Label: "Stale reports",
|
||
Href: buildStatusPageHref(statusPageFilters{Stale: "true", Limit: filters.Limit, UpdatedSince: filters.UpdatedSince}),
|
||
Class: "",
|
||
Active: filters.ServerConnectivity == "" && filters.Stale == "true",
|
||
},
|
||
{
|
||
Label: "Fresh reports",
|
||
Href: buildStatusPageHref(statusPageFilters{Stale: "false", Limit: filters.Limit, UpdatedSince: filters.UpdatedSince}),
|
||
Class: "online",
|
||
Active: filters.ServerConnectivity == "" && filters.Stale == "false",
|
||
},
|
||
}
|
||
}
|
||
|
||
func buildStatusPageHref(filters statusPageFilters) string {
|
||
return buildOverviewPath("/status", filters)
|
||
}
|
||
|
||
func buildOverviewPath(basePath string, filters statusPageFilters) string {
|
||
query := url.Values{}
|
||
if filters.ServerConnectivity != "" {
|
||
query.Set("server_connectivity", filters.ServerConnectivity)
|
||
}
|
||
if filters.Stale != "" {
|
||
query.Set("stale", filters.Stale)
|
||
}
|
||
if filters.UpdatedSince != "" {
|
||
query.Set("updated_since", filters.UpdatedSince)
|
||
}
|
||
if filters.Limit != "" {
|
||
query.Set("limit", filters.Limit)
|
||
}
|
||
encoded := query.Encode()
|
||
if encoded == "" {
|
||
return basePath
|
||
}
|
||
return basePath + "?" + encoded
|
||
}
|
||
|
||
// writeStatusPageQueryError renders an HTML 400 error page for invalid query
|
||
// parameters on /status. This keeps the error in the same visual context as
|
||
// the rest of the status UI instead of returning a raw JSON blob in a browser.
|
||
func writeStatusPageQueryError(w http.ResponseWriter, queryErr error) {
|
||
data := statusPageErrorData{
|
||
Message: overviewQueryErrorMessage(queryErr),
|
||
StatusPagePath: "/status",
|
||
}
|
||
w.Header().Set("Content-Type", "text/html; charset=utf-8")
|
||
w.WriteHeader(http.StatusBadRequest)
|
||
if err := statusPageErrorTemplate.Execute(w, data); err != nil {
|
||
http.Error(w, data.Message, http.StatusBadRequest)
|
||
}
|
||
}
|
||
|
||
// overviewQueryErrorMessage returns a human-readable message for the given
|
||
// overview query validation error. It is shared between the HTML and JSON
|
||
// error paths to keep messages consistent.
|
||
func overviewQueryErrorMessage(err error) string {
|
||
switch err {
|
||
case errInvalidUpdatedSince:
|
||
return "updated_since ist kein gueltiger RFC3339-Zeitstempel."
|
||
case errInvalidLimit:
|
||
return "limit muss eine positive Ganzzahl sein."
|
||
case errInvalidServerConnectivity:
|
||
return "server_connectivity muss online, offline, degraded oder unknown sein."
|
||
case errInvalidStale:
|
||
return "stale muss true oder false sein."
|
||
default:
|
||
return "Ungueltige Query-Parameter."
|
||
}
|
||
}
|
||
|
||
func statusClass(value string) string {
|
||
trimmed := strings.TrimSpace(value)
|
||
if trimmed == "" {
|
||
return "degraded"
|
||
}
|
||
return trimmed
|
||
}
|
||
|
||
func connectivityLabel(value string) string {
|
||
trimmed := strings.TrimSpace(value)
|
||
if trimmed == "" {
|
||
return "unknown"
|
||
}
|
||
return trimmed
|
||
}
|
||
|
||
func screenDetailPath(screenID string) string {
|
||
return "/api/v1/screens/" + url.PathEscape(strings.TrimSpace(screenID)) + "/status"
|
||
}
|
||
|
||
func screenDetailHTMLPath(screenID string) string {
|
||
return "/status/" + url.PathEscape(strings.TrimSpace(screenID))
|
||
}
|
||
|
||
func timestampLabel(value string) string {
|
||
trimmed := strings.TrimSpace(value)
|
||
if trimmed == "" {
|
||
return "-"
|
||
}
|
||
return trimmed
|
||
}
|