import {Injectable} from '@angular/core';
import {first} from 'rxjs/operators';
import {CommunicationOxService} from 'ox-core';
import {MicroLessonLevelConfiguration, MicroLessonInfoOxDefault} from 'ox-types';

@Injectable({
  providedIn: 'root'
})
export class AppInfoOxService {

  public microLessonInfo: MicroLessonInfoOxDefault;

  constructor(private communicationService: CommunicationOxService) {
    this.communicationService.receiveMicroLessonInfo.pipe(first()).subscribe(microLessonInfo => {
      this.microLessonInfo = microLessonInfo;
    });
  }

  //
  // getInitialLevel(): number {
  //   return this.microLessonInfo.initialLevel;
  //   // return this.getFirstMicroLessonInfo().initialLevel;
  // }

  // TODO if something like this is used, should be manage with extraData, cause the structure does not allow
  // more than micro lesson info per microlesosn.
  // getFirstMicroLessonInfo(): MicroLessonInfoOx {
  //   return this.microLessonInfo[0] ? (this.microLessonInfo as MicroLessonInfoOx[])[0]
  //     : (this.microLessonInfo as MicroLessonInfoOx);
  // }

  // getMicroLessonInfoById(microLessonId: number) {
  //   const aux: MicroLessonInfoOx[] = this.microLessonInfo[0] ? this.microLessonInfo as MicroLessonInfoOx[]
  //     : [this.microLessonInfo as MicroLessonInfoOx];
  //   return aux.find(x => x.microLessonId === microLessonId);
  // }

  // public getMetricsTable(microLessonId: number, level: number = 1): MetricsTable {
  //   console.warn('Calling get metrics. This is deprecated.');
  //   console.log('Calling get metrics. This is deprecated.');
  //   throw new Error('Calling metrics table, this is deprecated.');
  //   // const aux = this.getMicroLessonInfoById(microLessonId);
  //   // return aux.metricTables.length > 1 ? aux.metricTables[level - 1] : aux.metricTables[0];
  // }
  // TODO re enable this one.
  public getTotalChallengeCount(currentLevel?: number) {
    if (this.microLessonInfo.creatorInfo) {
      return this.microLessonInfo.creatorInfo.exerciseCount;
    }
    const challengesType = this.getMicroLessonLevelConfiguration(currentLevel)
      .types.find(x => x.mode === 'challenges');
    if (!challengesType) {
      console.warn('You ask for total challenge count and there is not type added with id challenges.');
      return;
    }
    return challengesType.value;
  }


  public getMicroLessonLevelConfiguration(level: number): MicroLessonLevelConfiguration {
    return this.microLessonInfo.microLessonLevelConfigurations[level ? level - 1 : 0];
  }

  getMaxSublevel(newLevel: number): number {
    return this.microLessonInfo.creatorInfo ? 1 : this.getMicroLessonLevelConfiguration(newLevel).exercisesToUpSubLevel.length;
  }

  getExercisesToUpSubLevel(newLevel: number) {
    return this.microLessonInfo.creatorInfo
      ? [999] : this.getMicroLessonLevelConfiguration(newLevel).exercisesToUpSubLevel;
  }

  getGameTypes(value: number): string[] {
    return this.microLessonInfo.creatorInfo ? [this.microLessonInfo.creatorInfo.type]
      : this.getMicroLessonLevelConfiguration(value).types.map(x => x.mode);
  }

  getChallengesModeAndValue(value: number): {
    mode: 'totalTime' | 'challengeTime' | 'totalLives' | 'challengeLives' | 'challenges';
    value: number;
  } {
    return this.microLessonInfo.creatorInfo ? {
        mode: this.microLessonInfo.creatorInfo.type as any,
        value: this.microLessonInfo.creatorInfo.exerciseCount
      } :
      this.getMicroLessonLevelConfiguration(value).types.find(x => x.mode === 'challenges');

  }
}