svelte-ts/src/routes/openmeteo/+page.server.ts

103 líneas
3,7 KiB
TypeScript

const geocodingApiBase: string = "https://geocoding-api.open-meteo.com/v1/search";
const openMeteoApiBase: string = "https://api.open-meteo.com/v1/forecast";
let location: string = "L'Hospitalet de Llobregat";
let previousLocation: string = '';
export function load(): object {
let ubicacio: Promise<string> = getFromOpenMeteo(location).then( (res) => res.results[0].name );
let temps: Promise<any> = getFromOpenMeteo(location)
.then( (res) => {
return { latitude: res.results[0].latitude, longitude: res.results[0].longitude };
})
.then( (latlon) => {
return getWeatherFromOpenMeteo(latlon.latitude, latlon.longitude);
// return [ latlon.longitude, latlon.latitude ];
})
.then( (res) => {
let yAxis: object[] = [];
let temps: object[] = [];
["hourly", "six_hourly", "three_hourly", "daily"].forEach(function (section, index) {
if (!(section in res)) {
return
}
Object.entries(res[section]||[]).forEach(function(k){
if (k[0] == "time" || k[0] == "sunrise" || k[0] == "sunset") {
return
}
let hourly_starttime = (res[section].time[0] + res.utc_offset_seconds) * 1000;
let pointInterval = (res[section].time[1] - res[section].time[0]) * 1000;
let unit = res[`${section}_units`][k[0]];
var axisId = null;
for (let i = 0; i < yAxis.length; i++) {
if (yAxis[i].title.text == unit) {
axisId = i;
}
}
if (axisId == null) {
yAxis.push({title: {text: unit}});
axisId = yAxis.length-1;
}
var ser = {
name: k[0],
res: k[1],
yAxis: axisId,
pointStart:hourly_starttime,
pointInterval: pointInterval,
type: (unit == 'mm' || unit == 'cm' || unit == 'inch' || unit == 'MJ/m²') ? 'column' : 'line',
tooltip: {
valueSuffix: " " + unit,
},
dataGrouping: {groupPixelWidth: 12}
/*dataGrouping: {
enabled: true,
forced: true,
units: [['year',[1]]]
}*/
};
temps.push(ser);
});
});
return temps;
} )
return { ubicacio, temps }
/**
let openMeteoData = getFromOpenMeteo(location);
let latitude: Promise<number> = openMeteoData.then((data) => data.results[0].latitude).catch((_e) => 41.35967);
let longitude: Promise<number> = openMeteoData.then((data) => data.results[0].longitude).catch((_e) => 2.10028 );
let openMeteoWeather = getWeatherFromOpenMeteo(latitude, longitude);
let openMeteoFetchUrl: string = openMeteoApiBase + '?latitude=' + latitude + '&logitude=' + longitude;
return { location: openMeteoData.then( (data) => data.results[0].name ).catch( (_e) => previousLocation ), weatherData: openMeteoWeather, latitude, longitude, openMeteoFetchUrl }
*/
};
function changeLocation(newLoc: string): void {
previousLocation = location;
location = newLoc;
}
function apiUrlBuilder(apiBaseUrl: string, vars: Array<[string, string | number]>): string {
let jointVars: string[] = [];
vars.forEach( (val) => jointVars.push(`${val[0]}=${val[1]}`) );
let jointParams: string = jointVars.join('&');
return `${apiBaseUrl}?${jointParams}`;
}
export const actions = {
changeLoc: async ({ request }) => {
const data: FormData = await request.formData();
changeLocation(data.get('newloc'));
}
}
async function getFromOpenMeteo(ubicacio: string): Promise<any> {
let geoCodeResponse: Response = await fetch(`${geocodingApiBase}?name=${ubicacio}&count=1`);
return geoCodeResponse.json();
}
async function getWeatherFromOpenMeteo(latitude: any, longitude: any) {
// let openMeteoResponse: Response = await fetch(openMeteoApiBase + '?latitude=' + latitude + '&longitude=' + longitude);
let openMeteoResponse: Response = await fetch(apiUrlBuilder(openMeteoApiBase, [['latitude', latitude], ['longitude', longitude], ['hourly', 'temperature_2m,rain,showers,snowfall']]));
return openMeteoResponse.json()
}