grabowski
49a3de0087
Station selection showed no history since 21ca844: Chart.js v4 datasets
had parsing:false with plain number arrays, drawing empty axes. Remove
the flag so the chart parses values again.
Backend hardening for the same flow:
- /measurements/history/{code} no longer 503s on non-Postgres configs;
it falls back to the configured adapter (reversed to ascending order)
- DB_TYPE defaults to postgresql when POSTGRES_CONNECTION_STRING is set
and DB_TYPE is unset, so the .env psql wins over the sqlite default
- zero readings (0.0) are no longer coerced to None, which would fail
MeasurementResponse validation and 500 /measurements/latest
Map visualization:
- river segments are now colored, widened and dash-speed-animated by
the discharge at the nearest gauge (same scale as the marker legend)
- fix z-order bug that drew the animated flow line behind its casing
- legend entries for river lines, reduced-motion fallback
River geometry: rebuild ping-river-network.geojson from Overpass
(110 -> 202 features), restoring missing Ping mainstem reaches through
the Bhumibol reservoir and the Tak-Kamphaeng Phet braided section
(unnamed waterway=river ways in OSM), with short synthetic connectors
(connector: true) bridging remaining sub-8 km holes.
577 lines
34 KiB
HTML
577 lines
34 KiB
HTML
<!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=1.0">
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<title>Ping River Live Monitor</title>
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<link rel="preconnect" href="https://unpkg.com">
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<link rel="preconnect" href="https://tile.openstreetmap.org">
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<link rel="stylesheet" href="https://unpkg.com/leaflet@1.9.4/dist/leaflet.css" integrity="sha384-sHL9NAb7lN7rfvG5lfHpm643Xkcjzp4jFvuavGOndn6pjVqS6ny56CAt3nsEVT4H" crossorigin="anonymous">
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<style>
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:root {
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--ink: #132b35;
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--muted: #64777d;
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--paper: #f3f7f5;
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--card: #ffffff;
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--river: #087da5;
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--river-light: #38b4d5;
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--mint: #dff4e8;
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--green: #1e8b60;
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--amber: #d99018;
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--red: #cc4b37;
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--border: #dce7e3;
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--shadow: 0 16px 40px rgba(23, 57, 67, .10);
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}
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* { box-sizing: border-box; }
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html, body { margin: 0; min-height: 100%; }
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body {
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color: var(--ink);
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background:
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radial-gradient(circle at 8% 0%, rgba(56, 180, 213, .12), transparent 25rem),
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var(--paper);
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font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
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}
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.shell { max-width: 1500px; margin: 0 auto; padding: 24px; }
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header {
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display: flex; align-items: center; justify-content: space-between; gap: 20px;
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margin-bottom: 20px;
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}
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.brand { display: flex; align-items: center; gap: 14px; }
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.brand-mark {
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width: 48px; height: 48px; border-radius: 15px; display: grid; place-items: center;
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color: white; font-size: 25px; background: linear-gradient(145deg, #0a91b9, #076787);
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box-shadow: 0 10px 22px rgba(8, 125, 165, .25);
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}
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h1 { margin: 0; font-size: clamp(1.4rem, 2.5vw, 2rem); letter-spacing: -.035em; }
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.subtitle { margin: 4px 0 0; color: var(--muted); font-size: .92rem; }
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.header-actions { display: flex; align-items: center; gap: 12px; }
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.live-pill {
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display: flex; gap: 8px; align-items: center; padding: 9px 13px; border-radius: 999px;
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background: var(--mint); color: #146644; font-weight: 750; font-size: .8rem;
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}
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.live-dot { width: 8px; height: 8px; border-radius: 50%; background: #22a66c; box-shadow: 0 0 0 5px rgba(34,166,108,.12); }
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button {
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border: 1px solid var(--border); border-radius: 11px; background: white; color: var(--ink);
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padding: 10px 14px; cursor: pointer; font-weight: 700; box-shadow: 0 3px 10px rgba(22,52,62,.05);
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}
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button:hover { border-color: #a9c4bb; transform: translateY(-1px); }
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button:disabled { opacity: .55; cursor: wait; transform: none; }
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.stats { display: grid; grid-template-columns: repeat(4, minmax(0,1fr)); gap: 14px; margin-bottom: 14px; }
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.stat {
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min-height: 112px; padding: 18px; background: var(--card); border: 1px solid var(--border);
|
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border-radius: 17px; box-shadow: 0 6px 18px rgba(31,61,70,.045);
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}
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.stat-label { color: var(--muted); text-transform: uppercase; letter-spacing: .09em; font-size: .68rem; font-weight: 800; }
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.stat-value { margin-top: 9px; font-size: 1.65rem; font-weight: 800; letter-spacing: -.04em; white-space: nowrap; }
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.stat-note { color: var(--muted); margin-top: 3px; font-size: .77rem; }
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.workspace { display: grid; grid-template-columns: minmax(0, 1fr) 330px; gap: 14px; min-height: 640px; }
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.map-card, .side-card { background: var(--card); border: 1px solid var(--border); border-radius: 19px; box-shadow: var(--shadow); overflow: hidden; }
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.map-card { position: relative; }
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#station-map { height: 640px; width: 100%; background: #dcebea; }
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.map-overlay {
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position: absolute; z-index: 500; top: 16px; left: 52px; right: 16px;
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display: flex; justify-content: space-between; align-items: flex-start; pointer-events: none;
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}
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.map-heading, .legend {
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background: rgba(255,255,255,.93); backdrop-filter: blur(9px); border: 1px solid rgba(207,224,218,.9);
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border-radius: 13px; padding: 11px 13px; box-shadow: 0 7px 20px rgba(22,58,68,.12);
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}
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.map-heading strong { display: block; font-size: .9rem; }
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.map-heading span { color: var(--muted); font-size: .72rem; }
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.legend { font-size: .7rem; color: var(--muted); }
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.legend-title { color: var(--ink); font-weight: 800; margin-bottom: 7px; }
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.legend-row { display: flex; align-items: center; gap: 6px; margin: 5px 0; }
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.swatch { width: 9px; height: 9px; border-radius: 50%; }
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.side-card { display: flex; flex-direction: column; max-height: 640px; }
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.side-head { padding: 18px 18px 14px; border-bottom: 1px solid var(--border); }
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.side-head h2 { margin: 0; font-size: 1rem; }
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.side-head p { margin: 5px 0 0; color: var(--muted); font-size: .75rem; }
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.station-list { overflow-y: auto; padding: 7px; }
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.station-row {
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width: 100%; display: grid; grid-template-columns: 40px minmax(0,1fr) auto; gap: 10px; align-items: center;
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padding: 11px; border: 0; border-radius: 12px; box-shadow: none; text-align: left; background: transparent;
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}
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.station-row:hover { background: #f1f7f5; transform: none; }
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.station-code { width: 40px; height: 40px; display: grid; place-items: center; border-radius: 11px; color: white; font-size: .68rem; font-weight: 850; }
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.station-name { overflow: hidden; }
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.station-name strong, .station-name span { display: block; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
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.station-name strong { font-size: .78rem; }
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.station-name span { color: var(--muted); font-size: .68rem; margin-top: 3px; }
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.flow-value { text-align: right; font-size: .82rem; font-weight: 800; }
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.flow-value span { display: block; color: var(--muted); font-size: .61rem; font-weight: 650; margin-top: 2px; }
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.loading-panel, .error-panel { position: absolute; z-index: 600; inset: 0; display: grid; place-items: center; background: rgba(243,247,245,.88); }
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.loading-card { background: white; padding: 18px 22px; border-radius: 14px; box-shadow: var(--shadow); font-weight: 750; }
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.error-panel { display: none; color: #8d2f22; text-align: center; padding: 25px; }
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.marker-wrap { background: none; border: 0; }
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.flow-marker {
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--marker-color: #087da5; --marker-size: 26px;
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position: relative; width: var(--marker-size); height: var(--marker-size); display: grid; place-items: center;
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border-radius: 50%; background: var(--marker-color); color: white; border: 3px solid white;
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box-shadow: 0 4px 12px rgba(5,43,58,.35); font-size: 8px; font-weight: 900;
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}
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.flow-marker::before {
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content: ""; position: absolute; inset: -6px; border-radius: 50%; border: 2px solid var(--marker-color);
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opacity: .36; animation: pulse 2.2s ease-out infinite;
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}
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@keyframes pulse { 0% { transform: scale(.72); opacity: .55; } 75%,100% { transform: scale(1.35); opacity: 0; } }
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.flow-line { animation: riverMove 3s linear infinite; }
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.flow-idle { animation-duration: 5.5s; }
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.flow-slow { animation-duration: 3s; }
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.flow-med { animation-duration: 1.9s; }
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.flow-fast { animation-duration: 1.15s; }
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.flow-surge { animation-duration: .7s; }
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@keyframes riverMove { to { stroke-dashoffset: -40; } }
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@media (prefers-reduced-motion: reduce) { .flow-line, .flow-marker::before { animation: none; } }
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.line-swatch { width: 24px; height: 4px; border-radius: 2px; flex: none; }
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.leaflet-popup-content-wrapper { border-radius: 14px; box-shadow: 0 12px 35px rgba(14,45,54,.2); }
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.popup { min-width: 190px; }
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.popup-code { font-size: .7rem; color: var(--river); font-weight: 850; text-transform: uppercase; letter-spacing: .08em; }
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.popup h3 { margin: 4px 0 2px; font-size: 1rem; }
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.popup-th { color: var(--muted); font-size: .74rem; }
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.popup-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; margin-top: 12px; }
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.popup-metric { background: #f1f7f5; padding: 8px; border-radius: 9px; }
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.popup-metric span { display: block; color: var(--muted); font-size: .62rem; }
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.popup-metric strong { display: block; margin-top: 2px; font-size: .86rem; }
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.popup-time { margin-top: 9px; color: var(--muted); font-size: .64rem; }
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@media (max-width: 900px) {
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.stats { grid-template-columns: repeat(2, 1fr); }
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.workspace { grid-template-columns: 1fr; }
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.side-card { max-height: 400px; }
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}
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@media (max-width: 560px) {
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.shell { padding: 14px; }
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header { align-items: flex-start; }
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.subtitle, .live-pill { display: none; }
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.stats { gap: 8px; }
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.stat { min-height: 96px; padding: 14px; }
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.stat-value { font-size: 1.25rem; }
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#station-map { height: 540px; }
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.map-overlay { left: 46px; }
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.legend { display: none; }
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}
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</style>
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</head>
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<body>
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<main class="shell">
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<header>
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<div class="brand">
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<div class="brand-mark">≋</div>
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<div>
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<h1>Ping River Live Monitor</h1>
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<p class="subtitle">Current water level and discharge across Northern Thailand</p>
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</div>
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</div>
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<div class="header-actions">
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<div class="live-pill"><span class="live-dot"></span> LIVE DATA</div>
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<button id="refresh-button" type="button">↻ Refresh</button>
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</div>
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</header>
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<section class="stats" aria-label="River summary">
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<article class="stat"><div class="stat-label">Reporting stations</div><div class="stat-value" id="station-count">—</div><div class="stat-note">with current readings</div></article>
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<article class="stat"><div class="stat-label">Combined discharge</div><div class="stat-value" id="total-flow">—</div><div class="stat-note">sum of reported flows · m³/s</div></article>
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<article class="stat"><div class="stat-label">Strongest flow</div><div class="stat-value" id="peak-flow">—</div><div class="stat-note" id="peak-station">Awaiting station data</div></article>
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<article class="stat"><div class="stat-label">Last updated</div><div class="stat-value" id="last-updated">—</div><div class="stat-note" id="data-age">Loading latest readings</div></article>
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</section>
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<section class="workspace">
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<article class="map-card">
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<div id="station-map" role="application" aria-label="Interactive map of Ping River monitoring stations"></div>
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<div class="map-overlay">
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<div class="map-heading"><strong>Station flow map</strong><span>River width, colour & dash speed follow live discharge</span></div>
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<div class="legend">
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<div class="legend-title">Flow status</div>
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<div class="legend-row"><i class="swatch" style="background:#1e8b60"></i> Low < 25 m³/s</div>
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<div class="legend-row"><i class="swatch" style="background:#087da5"></i> Moderate 25–100</div>
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<div class="legend-row"><i class="swatch" style="background:#d99018"></i> High 100–250</div>
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<div class="legend-row"><i class="swatch" style="background:#cc4b37"></i> Very high > 250</div>
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<div class="legend-row"><i class="line-swatch" style="background:#69b7d0"></i> River · no nearby gauge</div>
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<div class="legend-row"><i class="line-swatch" style="background:linear-gradient(90deg,#1e8b60,#087da5,#d99018,#cc4b37)"></i> River · gauge colour, dashes = flow</div>
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</div>
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</div>
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<div class="loading-panel" id="loading"><div class="loading-card">Loading river conditions…</div></div>
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<div class="error-panel" id="error"><div><strong>Map data could not be loaded.</strong><br><span id="error-message"></span></div></div>
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</article>
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<aside class="side-card">
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<div class="side-head"><h2>Current station flow</h2><p>Select a station to locate it and load PostgreSQL history</p></div>
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<div class="station-list" id="river-flow" aria-live="polite"></div>
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<div class="side-head"><h2>Additional ThaiWater sensors</h2><p id="thaiwater-count">Loading Ping basin sensors…</p></div>
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<div class="station-list" id="thaiwater-sensors" aria-live="polite"></div>
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</aside>
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</section>
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<section class="map-card" id="history-card" style="margin-top:14px;padding:20px">
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<div style="display:flex;justify-content:space-between;align-items:center;gap:14px;flex-wrap:wrap">
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<div><h2 id="history-title" style="margin:0;font-size:1rem">PostgreSQL history</h2><p id="history-status" class="subtitle">Select a RID flow station to load the last 7 days</p></div>
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<select id="history-range" style="padding:9px 12px;border:1px solid var(--border);border-radius:10px;background:white"><option value="24">24 hours</option><option value="168" selected>7 days</option><option value="720">30 days</option><option value="2160">90 days</option><option value="876000">All time</option></select>
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</div>
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<div style="height:260px;margin-top:14px;overflow:hidden;position:relative"><canvas id="history-chart" aria-label="Historical water level and discharge chart" style="display:block"></canvas></div>
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</section>
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</main>
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<script src="https://unpkg.com/leaflet@1.9.4/dist/leaflet.js" integrity="sha384-cxOPjt7s7Iz04uaHJceBmS+qpjv2JkIHNVcuOrM+YHwZOmJGBXI00mdUXEq65HTH" crossorigin="anonymous"></script>
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<script src="https://cdn.jsdelivr.net/npm/chart.js@4.4.7/dist/chart.umd.min.js" integrity="sha384-vsrfeLOOY6KuIYKDlmVH5UiBmgIdB1oEf7p01YgWHuqmOHfZr374+odEv96n9tNC" crossorigin="anonymous"></script>
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<script>
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(function () {
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'use strict';
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const state = { map: null, layers: [], markers: new Map(), hasFit: false, historyChart: null, selectedStation: null, historyRequestId: 0 };
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const $ = (id) => document.getElementById(id);
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function flowColor(flow) {
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if (flow == null || Number.isNaN(flow)) return '#7b8f94';
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if (flow < 25) return '#1e8b60';
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if (flow < 100) return '#087da5';
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if (flow < 250) return '#d99018';
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return '#cc4b37';
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}
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function escapeHtml(value) {
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return String(value == null ? '' : value).replace(/[&<>'"]/g, (char) => ({
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'&': '&', '<': '<', '>': '>', "'": ''', '"': '"'
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})[char]);
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}
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function latestByStation(measurements) {
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const latest = new Map();
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measurements.forEach((item) => {
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const prior = latest.get(item.station_code);
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if (!prior || new Date(item.timestamp) > new Date(prior.timestamp)) latest.set(item.station_code, item);
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});
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return latest;
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}
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function formatFlow(value) {
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return value == null || Number.isNaN(Number(value)) ? 'No data' : `${Number(value).toFixed(1)} m³/s`;
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}
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function markerSize(flow) {
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if (flow == null) return 24;
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return Math.max(24, Math.min(42, 22 + Math.sqrt(Math.max(0, flow)) * 1.05));
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}
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function initMap() {
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if (!window.L) throw new Error('The map library did not load. Check the internet connection.');
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if (state.map) return;
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state.map = L.map('station-map', { zoomControl: true, attributionControl: true }).setView([18.78, 98.98], 8);
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L.tileLayer('https://{s}.tile.openstreetmap.org/{z}/{x}/{y}.png', {
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maxZoom: 18,
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attribution: '© OpenStreetMap contributors'
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}).addTo(state.map);
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}
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function clearLayers() {
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state.layers.forEach((layer) => state.map.removeLayer(layer));
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state.layers = [];
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state.markers.clear();
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}
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function buildPopup(station, measurement) {
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const flow = measurement ? measurement.discharge : null;
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const level = measurement ? measurement.water_level : null;
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const time = measurement ? new Date(measurement.timestamp).toLocaleString([], { dateStyle: 'medium', timeStyle: 'short' }) : 'No reading available';
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return `<div class="popup">
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<div class="popup-code">${escapeHtml(station.station_code)}</div>
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<h3>${escapeHtml(station.english_name)}</h3>
|
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<div class="popup-th">${escapeHtml(station.thai_name)}</div>
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<div class="popup-grid">
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<div class="popup-metric"><span>Discharge</span><strong>${escapeHtml(formatFlow(flow))}</strong></div>
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<div class="popup-metric"><span>Water level</span><strong>${level == null ? 'No data' : `${Number(level).toFixed(2)} m`}</strong></div>
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</div>
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<div class="popup-time">Reading: ${escapeHtml(time)}</div>
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</div>`;
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}
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function nearestGaugeFlow(feature, gauges) {
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const coords = feature.geometry && feature.geometry.coordinates;
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if (!gauges.length || !coords || !coords.length) return null;
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let best = Infinity, q = null;
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const step = Math.max(1, Math.floor(coords.length / 5));
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for (let i = 0; i < coords.length; i += step) {
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const lon = coords[i][0], lat = coords[i][1];
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gauges.forEach((g) => {
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const d = (g.lat - lat) * (g.lat - lat) + (g.lon - lon) * (g.lon - lon);
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if (d < best) { best = d; q = g.q; }
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});
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}
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return best < 0.16 ? q : null; // only grade segments within ~0.4° (~45 km) of a gauge
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}
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function riverWeight(q) {
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return q == null ? 2.5 : Math.max(3, Math.min(9, 2.5 + Math.sqrt(Math.max(0, q)) * .38));
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}
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function riverSpeedClass(q) {
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if (q == null) return 'flow-idle';
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if (q < 25) return 'flow-slow';
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if (q < 100) return 'flow-med';
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if (q < 250) return 'flow-fast';
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return 'flow-surge';
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}
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function renderRiverNetwork(riverNetwork, stations, readings) {
|
||
if (!riverNetwork) return;
|
||
const gauges = stations
|
||
.filter((s) => Number.isFinite(s.latitude) && Number.isFinite(s.longitude))
|
||
.map((s) => ({ lat: s.latitude, lon: s.longitude, q: readings.get(s.station_code)?.discharge }))
|
||
.filter((g) => g.q != null)
|
||
.map((g) => ({ lat: g.lat, lon: g.lon, q: Number(g.q) }));
|
||
const flowBySegment = new Map();
|
||
(riverNetwork.features || []).forEach((f) => flowBySegment.set(f, nearestGaugeFlow(f, gauges)));
|
||
const casing = L.geoJSON(riverNetwork, {
|
||
style: (f) => ({ color: '#e3f4f8', weight: riverWeight(flowBySegment.get(f)) + 4.5, opacity: .8, lineCap: 'round' })
|
||
}).addTo(state.map);
|
||
const flow = L.geoJSON(riverNetwork, {
|
||
style: (f) => {
|
||
const q = flowBySegment.get(f);
|
||
return {
|
||
color: q == null ? '#69b7d0' : flowColor(q),
|
||
weight: riverWeight(q), opacity: .92, lineCap: 'round',
|
||
dashArray: '6 14', className: `flow-line ${riverSpeedClass(q)}`
|
||
};
|
||
}
|
||
}).addTo(state.map);
|
||
flow.bringToBack();
|
||
casing.bringToBack();
|
||
state.layers.push(casing, flow);
|
||
}
|
||
|
||
function renderMap(stations, readings, riverNetwork) {
|
||
clearLayers();
|
||
renderRiverNetwork(riverNetwork, stations, readings);
|
||
const mapped = stations.filter((station) => Number.isFinite(station.latitude) && Number.isFinite(station.longitude));
|
||
const bounds = [];
|
||
|
||
mapped.forEach((station) => {
|
||
const measurement = readings.get(station.station_code);
|
||
const flow = measurement && measurement.discharge != null ? Number(measurement.discharge) : null;
|
||
const color = flowColor(flow);
|
||
const size = markerSize(flow);
|
||
const icon = L.divIcon({
|
||
className: 'marker-wrap',
|
||
html: `<div class="flow-marker" style="--marker-color:${color};--marker-size:${size}px">${escapeHtml(station.station_code.replace('P.', ''))}</div>`,
|
||
iconSize: [size, size], iconAnchor: [size / 2, size / 2], popupAnchor: [0, -size / 2]
|
||
});
|
||
const marker = L.marker([station.latitude, station.longitude], { icon, title: `${station.station_code} ${station.english_name}` })
|
||
.bindPopup(buildPopup(station, measurement))
|
||
.on('click', () => loadHistory(station.station_code))
|
||
.addTo(state.map);
|
||
state.layers.push(marker);
|
||
state.markers.set(station.station_code, marker);
|
||
bounds.push([station.latitude, station.longitude]);
|
||
});
|
||
if (!state.hasFit && bounds.length) {
|
||
state.map.fitBounds(bounds, { padding: [35, 35], maxZoom: 9 });
|
||
state.hasFit = true;
|
||
}
|
||
}
|
||
|
||
async function loadHistory(stationCode) {
|
||
state.selectedStation = stationCode;
|
||
state.historyRequestId++;
|
||
const reqId = state.historyRequestId;
|
||
$('history-title').textContent = `${stationCode} · PostgreSQL history`;
|
||
$('history-status').textContent = 'Loading historical measurements…';
|
||
try {
|
||
const response = await fetch(`/measurements/history/${encodeURIComponent(stationCode)}?hours=${$('history-range').value}`);
|
||
if (!response.ok) throw new Error((await response.json()).detail || `HTTP ${response.status}`);
|
||
const rows = await response.json();
|
||
if (reqId !== state.historyRequestId) return;
|
||
|
||
// Downsample to daily averages to prevent browser freezing with 50k+ points
|
||
const downsample = (data) => {
|
||
const buckets = {};
|
||
data.forEach((row) => {
|
||
const date = new Date(row.timestamp);
|
||
const key = `${date.getUTCFullYear()}-${date.getUTCMonth()}-${date.getUTCDate()}`;
|
||
if (!buckets[key]) buckets[key] = { ts: row.timestamp, discharge: [], level: [] };
|
||
const b = buckets[key];
|
||
if (row.discharge != null) b.discharge.push(row.discharge);
|
||
if (row.water_level != null) b.level.push(row.water_level);
|
||
});
|
||
return Object.values(buckets).map((b) => ({
|
||
timestamp: b.ts,
|
||
discharge: b.discharge.length ? b.discharge.reduce((a, c) => a + c, 0) / b.discharge.length : null,
|
||
water_level: b.level.length ? b.level.reduce((a, c) => a + c, 0) / b.level.length : null,
|
||
}));
|
||
};
|
||
const sampled = rows.length > 2000 ? downsample(rows) : rows;
|
||
|
||
// Safely clear existing chart instance
|
||
if (state.historyChart) { state.historyChart.destroy(); state.historyChart = null; }
|
||
// Clear any orphan Chart.js instance on the canvas
|
||
const existingChart = Chart.getChart($('history-chart'));
|
||
if (existingChart) existingChart.destroy();
|
||
|
||
state.historyChart = new Chart($('history-chart'), {
|
||
type: 'line',
|
||
data: {
|
||
labels: sampled.map((row) => new Date(row.timestamp).toLocaleString('en-TH', { timeZone: 'Asia/Bangkok', month: 'short', day: 'numeric', year: '2-digit', hour: '2-digit' })),
|
||
datasets: [
|
||
{ label: 'Discharge (m³/s)', data: sampled.map((row) => row.discharge), borderColor: '#087da5', backgroundColor: 'rgba(8,125,165,.12)', yAxisID: 'flow', pointRadius: 0, tension: .25 },
|
||
{ label: 'Water level (m)', data: sampled.map((row) => row.water_level), borderColor: '#d99018', yAxisID: 'level', pointRadius: 0, tension: .25 }
|
||
]
|
||
},
|
||
options: {
|
||
responsive: true, maintainAspectRatio: false, animation: { duration: 0 },
|
||
interaction: { mode: 'index', intersect: false },
|
||
scales: {
|
||
flow: { type: 'linear', position: 'left' },
|
||
level: { type: 'linear', position: 'right', grid: { drawOnChartArea: false } },
|
||
x: { ticks: { maxTicksLimit: 12 } }
|
||
},
|
||
plugins: {
|
||
legend: { display: true },
|
||
floodBands: { enabled: true }
|
||
}
|
||
},
|
||
plugins: [{
|
||
id: 'floodBands',
|
||
beforeDraw(chart, _args, pluginOptions) {
|
||
if (!pluginOptions.enabled || !chart.chartArea) return;
|
||
const levelScale = chart.scales?.level;
|
||
if (!levelScale || !Number.isFinite(levelScale.min) || !Number.isFinite(levelScale.max)) return;
|
||
const { ctx, chartArea } = chart;
|
||
const zones = [
|
||
{ min: levelScale.min, max: 3.0, color: 'rgba(30,139,96,.08)' },
|
||
{ min: 3.0, max: 4.5, color: 'rgba(217,144,24,.12)' },
|
||
{ min: 4.5, max: levelScale.max, color: 'rgba(204,75,55,.15)' },
|
||
];
|
||
ctx.save();
|
||
zones.forEach((z) => {
|
||
const min = Math.max(z.min, levelScale.min);
|
||
const max = Math.min(z.max, levelScale.max);
|
||
if (max <= min) return;
|
||
const top = levelScale.getPixelForValue(max);
|
||
const bottom = levelScale.getPixelForValue(min);
|
||
ctx.fillStyle = z.color;
|
||
ctx.fillRect(chartArea.left, top, chartArea.right - chartArea.left, bottom - top);
|
||
});
|
||
ctx.restore();
|
||
}
|
||
}]
|
||
});
|
||
$('history-status').textContent = rows.length ? `${rows.length} measurements (${sampled.length} daily) from PostgreSQL` : 'No PostgreSQL measurements in this period';
|
||
$('history-card').scrollIntoView({ behavior: 'smooth', block: 'nearest' });
|
||
} catch (error) {
|
||
$('history-status').textContent = `History unavailable: ${error.message}`;
|
||
}
|
||
}
|
||
|
||
function renderList(stations, readings) {
|
||
const container = $('river-flow');
|
||
container.replaceChildren();
|
||
const ordered = [...stations].sort((a, b) => {
|
||
const af = readings.get(a.station_code)?.discharge;
|
||
const bf = readings.get(b.station_code)?.discharge;
|
||
return (bf == null ? -1 : Number(bf)) - (af == null ? -1 : Number(af));
|
||
});
|
||
ordered.forEach((station) => {
|
||
const measurement = readings.get(station.station_code);
|
||
const flow = measurement?.discharge == null ? null : Number(measurement.discharge);
|
||
const row = document.createElement('button');
|
||
row.type = 'button'; row.className = 'station-row';
|
||
row.innerHTML = `<span class="station-code" style="background:${flowColor(flow)}">${escapeHtml(station.station_code)}</span>
|
||
<span class="station-name"><strong>${escapeHtml(station.english_name)}</strong><span>${escapeHtml(station.thai_name)}</span></span>
|
||
<span class="flow-value">${flow == null ? '—' : flow.toFixed(1)}<span>m³/s</span></span>`;
|
||
row.addEventListener('click', () => {
|
||
const marker = state.markers.get(station.station_code);
|
||
if (marker) { state.map.flyTo(marker.getLatLng(), Math.max(state.map.getZoom(), 11), { duration: .8 }); marker.openPopup(); }
|
||
loadHistory(station.station_code);
|
||
});
|
||
container.appendChild(row);
|
||
});
|
||
}
|
||
|
||
function renderThaiWaterSensors(sensors, existingCodes) {
|
||
const container = $('thaiwater-sensors');
|
||
container.replaceChildren();
|
||
const additional = sensors.filter((sensor) => !existingCodes.has(sensor.station_code));
|
||
$('thaiwater-count').textContent = `${additional.length} additional Ping basin stations · water level`;
|
||
additional.forEach((sensor) => {
|
||
const percent = sensor.bank_percent == null ? null : Number(sensor.bank_percent);
|
||
const color = percent == null ? '#7b8f94' : percent >= 100 ? '#cc4b37' : percent >= 80 ? '#d99018' : '#6c73b8';
|
||
const icon = L.divIcon({
|
||
className: 'marker-wrap',
|
||
html: `<div class="flow-marker" style="--marker-color:${color};--marker-size:22px">+</div>`,
|
||
iconSize: [22, 22], iconAnchor: [11, 11], popupAnchor: [0, -11]
|
||
});
|
||
const level = sensor.water_level_msl == null ? 'No data' : `${Number(sensor.water_level_msl).toFixed(2)} m MSL`;
|
||
const bank = sensor.distance_to_bank == null ? 'Unknown' : `${Number(sensor.distance_to_bank).toFixed(2)} m below bank`;
|
||
const marker = L.marker([sensor.latitude, sensor.longitude], { icon, title: `${sensor.station_code} ${sensor.station_name}` })
|
||
.bindPopup(`<div class="popup"><div class="popup-code">${escapeHtml(sensor.station_code)} · ThaiWater</div><h3>${escapeHtml(sensor.station_name)}</h3><div class="popup-th">${escapeHtml(sensor.river_name || 'Ping basin')} · ${escapeHtml(sensor.agency || '')}</div><div class="popup-grid"><div class="popup-metric"><span>Water level</span><strong>${escapeHtml(level)}</strong></div><div class="popup-metric"><span>Bank status</span><strong>${escapeHtml(bank)}</strong></div></div></div>`)
|
||
.addTo(state.map);
|
||
state.layers.push(marker);
|
||
state.markers.set(`thaiwater:${sensor.station_code}`, marker);
|
||
|
||
const row = document.createElement('button');
|
||
row.type = 'button'; row.className = 'station-row';
|
||
row.innerHTML = `<span class="station-code" style="background:${color}">${escapeHtml(sensor.station_code)}</span><span class="station-name"><strong>${escapeHtml(sensor.station_name)}</strong><span>${escapeHtml(sensor.river_name || 'Ping basin')} · ThaiWater</span></span><span class="flow-value">${percent == null ? '—' : percent.toFixed(0) + '%'}<span>bank level</span></span>`;
|
||
row.addEventListener('click', () => { state.map.flyTo(marker.getLatLng(), Math.max(state.map.getZoom(), 11), { duration: .8 }); marker.openPopup(); });
|
||
container.appendChild(row);
|
||
});
|
||
}
|
||
|
||
function renderSummary(stations, readings) {
|
||
const current = stations.map((s) => readings.get(s.station_code)).filter(Boolean);
|
||
const flows = current.filter((m) => m.discharge != null).map((m) => ({ code: m.station_code, value: Number(m.discharge) }));
|
||
const total = flows.reduce((sum, item) => sum + item.value, 0);
|
||
const peak = flows.length ? flows.reduce((max, item) => item.value > max.value ? item : max) : null;
|
||
const timestamps = current.map((m) => new Date(m.timestamp)).filter((date) => !Number.isNaN(date.getTime()));
|
||
const latest = timestamps.length ? new Date(Math.max(...timestamps.map((date) => date.getTime()))) : null;
|
||
$('station-count').textContent = `${current.length} / ${stations.length}`;
|
||
$('total-flow').textContent = flows.length ? total.toLocaleString(undefined, { maximumFractionDigits: 1 }) : '—';
|
||
$('peak-flow').textContent = peak ? peak.value.toFixed(1) : '—';
|
||
$('peak-station').textContent = peak ? `${peak.code} · m³/s` : 'No discharge reported';
|
||
$('last-updated').textContent = latest ? latest.toLocaleTimeString([], { hour: '2-digit', minute: '2-digit' }) : '—';
|
||
if (latest) {
|
||
const minutes = Math.max(0, Math.round((Date.now() - latest.getTime()) / 60000));
|
||
$('data-age').textContent = `${latest.toLocaleDateString([], { day: 'numeric', month: 'short' })} · ${minutes} min ago`;
|
||
} else $('data-age').textContent = 'No timestamp available';
|
||
}
|
||
|
||
async function loadDashboard() {
|
||
const refresh = $('refresh-button');
|
||
refresh.disabled = true;
|
||
$('loading').style.display = 'grid';
|
||
$('error').style.display = 'none';
|
||
try {
|
||
initMap();
|
||
const [stationResponse, measurementResponse, riverResponse, thaiWaterResponse] = await Promise.all([
|
||
fetch('/stations'),
|
||
fetch('/measurements/latest?limit=500'),
|
||
fetch('/static/ping-river-network.geojson'),
|
||
fetch('/sensors/thaiwater')
|
||
]);
|
||
if (!stationResponse.ok || !measurementResponse.ok || !riverResponse.ok) {
|
||
throw new Error(`API returned ${stationResponse.status}/${measurementResponse.status}/${riverResponse.status}`);
|
||
}
|
||
const stations = await stationResponse.json();
|
||
const measurements = await measurementResponse.json();
|
||
const riverNetwork = await riverResponse.json();
|
||
const thaiWaterSensors = thaiWaterResponse.ok ? await thaiWaterResponse.json() : [];
|
||
const readings = latestByStation(measurements);
|
||
renderMap(stations, readings, riverNetwork);
|
||
renderList(stations, readings);
|
||
renderThaiWaterSensors(thaiWaterSensors, new Set(stations.map((station) => station.station_code)));
|
||
renderSummary(stations, readings);
|
||
$('loading').style.display = 'none';
|
||
} catch (error) {
|
||
$('loading').style.display = 'none';
|
||
$('error').style.display = 'grid';
|
||
$('error-message').textContent = error.message;
|
||
console.error('Dashboard load failed:', error);
|
||
} finally {
|
||
refresh.disabled = false;
|
||
}
|
||
}
|
||
|
||
$('refresh-button').addEventListener('click', loadDashboard);
|
||
$('history-range').addEventListener('change', () => { if (state.selectedStation) loadHistory(state.selectedStation); });
|
||
loadDashboard();
|
||
window.setInterval(loadDashboard, 5 * 60 * 1000);
|
||
})();
|
||
</script>
|
||
</body>
|
||
</html>
|