148 lines
3.9 KiB
JavaScript
148 lines
3.9 KiB
JavaScript
const severeWarningEvents = ["Severe Thunderstorm Warning","Destructive Severe Thunderstorm Warning","Considerable Destructive Severe Thunderstorm Warning"]
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const tornadoWarningEvents = ["Tornado Warning","Radar Indicated Tornado Warning","Confirmed Tornado Warning","Tornado Emergency"]
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const tornadoWatchEvents = ["Tornado Watch"]
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const severeThunderstormWatchEvents = ["Severe Thunderstorm Watch"]
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const area = msg.area
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const mqttTopic = "weather/alerts/" + area
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const tstormTopic = mqttTopic + "/severe_thunderstorm_warning"
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const tornadoWarnTopic = mqttTopic + "/tornado_warning"
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const tornadoWatchTopic = mqttTopic + "/tornado_watch"
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const severeThunderstormWatchTopic = mqttTopic + "/severe_thunderstorm_watch"
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let alerts = msg.payload.features
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let tornado_possible = false
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let considerable_destructive = false
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let confirmed = false
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// Filter for Severe Thunderstorm Warnings
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let ts = alerts.filter(function(alert) {
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if (alert.properties &&
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severeWarningEvents.includes(alert.properties.event)) {
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return true
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}
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})
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// Filter for Severe Thunderstorm Warnings with tornado detection
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// that have a tornado possible parameter
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let tstp = alerts.filter(function(alert) {
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if (alert.properties &&
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severeWarningEvents.includes(alert.properties.event) &&
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alert.properties.parameters &&
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alert.properties.parameters.tornadoDetection &&
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alert.properties.parameters.tornadoDetection.length > 0) {
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let tornadoPossible = alert.properties.parameters.tornadoDetection[0]
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return tornadoPossible === "POSSIBLE"
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}
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})
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if (tstp.length > 0) {
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tornado_possible = true
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}
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// Filter for considerable destructive severe thunderstorm warnings
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let cdst = alerts.filter(function(alert) {
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if (alert.properties &&
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alert.properties.event === "Considerable Destructive Severe Thunderstorm Warning") {
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return true
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}
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})
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if (cdst.length > 0) {
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considerable_destructive = true
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}
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// Filter for Tornado Warnings
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let tornado = alerts.filter(function(alert) {
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if (alert.properties &&
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tornadoWarningEvents.includes(alert.properties.event)) {
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return true
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}
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})
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let confirmed_tornado = alerts.filter(function(alert) {
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if (alert.properties &&
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alert.properties.event === "Confirmed Tornado Warning") {
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return true
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}
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})
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if (confirmed_tornado.length > 0) {
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confirmed = true
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}
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// Filter for Tornado Watches
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let tornado_watch = alerts.filter(function(alert) {
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if (alert.properties &&
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tornadoWatchEvents.includes(alert.properties.event)) {
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return true
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}
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})
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// Filter for Severe Thunderstorm Watches
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let severe_thunderstorm_watch = alerts.filter(function(alert) {
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if (alert.properties &&
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severeThunderstormWatchEvents.includes(alert.properties.event)) {
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return true
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}
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})
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// If there are any alerts, return them
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let allAlerts = {
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"payload": msg.payload.features
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}
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let tstormMsg = {
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"payload": {
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"alerts": ts,
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"count": ts.length,
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"tornado_possible": tornado_possible,
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"considerable_destructive": considerable_destructive
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},
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"topic": tstormTopic
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}
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let tornadoWarnMsg = {
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"payload": {
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"alerts": tornado,
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"count": tornado.length,
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"confirmed": confirmed
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},
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"topic": tornadoWarnTopic
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}
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let tornadoWatchMsg = {
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"payload": {
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"alerts": tornado_watch,
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"count": tornado_watch.length
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},
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"topic": tornadoWatchTopic
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}
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let severeThunderstormWatchMsg = {
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"payload": {
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"alerts": severe_thunderstorm_watch,
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"count": severe_thunderstorm_watch.length
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},
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"topic": severeThunderstormWatchTopic
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}
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// Create status message for node
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let statusMsg = {
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"status": {
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"fill": "green",
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"shape": "dot",
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"text": alerts.length + " alerts processed at " + new Date().toLocaleString()
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}
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}
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// Send messages to output nodes
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node.send([allAlerts,tstormMsg,tornadoWarnMsg,tornadoWatchMsg,severeThunderstormWatchMsg,statusMsg]) |