rainfall last 24h

src/app.service.ts

@@ -35,6 +35,7 @@ export class AppService implements OnApplicationShutdown {
 
       await this.weatherRepository.save(entity);
       entity.fresh = true;
+      entity.rain24h = await this.rainFall24h();
 
       return entity;
     } catch (error) {
@@ -56,6 +57,7 @@ export class AppService implements OnApplicationShutdown {
 
       if (!previous) throw new InternalServerErrorException();
 
+      previous.rain24h = await this.rainFall24h(previous.date);
       previous.fresh = false;
       return previous;
     }
@@ -85,6 +87,22 @@ export class AppService implements OnApplicationShutdown {
     };
   }
 
+  /**
+   * Get rainfall in the last 24h since `since` start point.
+   * @param since Time start point
+   * @returns Rainfall in mm
+   */
+  async rainFall24h(since = new Date()) {
+    const { rainfall } = await this.weatherRepository
+      .createQueryBuilder('weather')
+      .select('SUM(rainDiff)', 'rainfall')
+      .where('date >= :date', {
+        date: new Date(since.getTime() - 24 * 60 * 60 * 1000),
+      })
+      .getRawOne();
+    return Number(rainfall) || 0;
+  }
+
   @Cron('0 * * * *')
   scheduledPulls() {
     this.getWeather().catch(() => {

src/entities/weather.entity.ts

@@ -44,5 +44,6 @@ export class WeatherEntity {
   @Column({ nullable: true, type: 'decimal', precision: 6, scale: 2 })
   absPressure: number;
 
+  rain24h?: number;
   fresh?: boolean;
 }