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src/app/modules/songs/services/song.service.ts

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+import {Injectable} from '@angular/core';
+import {Observable} from 'rxjs';
+import {Song} from '../models/song';
+import {SongDataService} from './song-data.service';
+import {tap} from 'rxjs/operators';
+
+declare var importCCLI: any;
+
+@Injectable({
+  providedIn: 'root'
+})
+export class SongService {
+
+  public TYPES = ['Praise', 'Worship'];
+
+  public LEGAL_OWNER = ['CCLI', 'other'];
+  public LEGAL_TYPE = ['open', 'allowed'];
+
+  public KEYS = [
+    'C', 'C#', 'Db', 'D', 'D#', 'Eb', 'E', 'F', 'F#', 'Gb', 'G', 'G#', 'Ab', 'A', 'A#', 'B', 'H',
+    'c', 'c#', 'db', 'd', 'd#', 'eb', 'e', 'f', 'f#', 'gb', 'g', 'g#', 'ab', 'a', 'a#', 'b', 'h'
+  ];
+  private list: Song[];
+
+  constructor(private songDataService: SongDataService) {
+    importCCLI = (songs: Song[]) => this.updateFromCLI(songs);
+  }
+
+  public list$ = (): Observable<Song[]> => this.songDataService.list().pipe(tap(_ => this.list = _));
+  public read = (songId: string): Observable<Song | undefined> => this.songDataService.read(songId);
+
+  public async update(songId: string, data: any): Promise<void> {
+    await this.songDataService.update(songId, data);
+  }
+
+// https://www.csvjson.com/csv2json
+  private async updateFromCLI(songs: Song[]) {
+    const mapped = songs.map(_ => ({
+      number: _.number,
+      legalType: _.legalType === 'ja' ? 'allowed' : 'open',
+      legalOwner: _.legalOwner === 'ja' ? 'CCLI' : 'other',
+      title: _.title,
+      legalOwnerId: _.legalOwnerId,
+      origin: _.origin,
+      artist: _.artist,
+      comment: _.comment
+    }));
+    const promises = this.list.map(async _ => {
+      // tslint:disable-next-line:triple-equals
+      const mappedSongs = mapped.filter(f => f.number == _.number);
+      if (mappedSongs.length === 1) {
+        const mappedSong = mappedSongs[0];
+        const id = _.id;
+        return await this.update(id, mappedSong);
+      }
+    });
+
+    await Promise.all(promises);
+  }
+
+}