import { typeSourceSpan } from '@angular/compiler/public_api';
import { Injectable } from '@angular/core';
import { HttpClient } from '@angular/common/http';

import * as types from './types';

@Injectable()
export class DataApiService {
  constructor(private http: HttpClient) {}

  getSchools(onComplete?: () => void): Promise<types.School[]> {
    return new Promise<types.School[]>((response, reject) => {
      this.http.get<types.ApiResults<types.School>>('/api/schools').subscribe(
        data => {
          if (data.success) {
            response(data.data);
          } else {
            reject(data.message);
          }
        },
        error => {
          reject(error);
        },
        () => {
          if (onComplete != null) {
            onComplete();
          }
        }
      );
    });
  }

  getAcademicPeriods(onComplete?: () => void): Promise<types.AcademicYear[]> {
    return new Promise<types.AcademicYear[]>((response, reject) => {
      this.http.get<types.ApiResults<types.AcademicYear>>('/api/academicPeriods').subscribe(
        data => {
          if (data.success) {
            response(data.data);
          } else {
            reject(data.message);
          }
        },
        error => {
          reject(error);
        },
        () => {
          if (onComplete != null) {
            onComplete();
          }
        }
      );
    });
  }

  saveStepOneReport(reportData: any, onComplete?: () => void) {
    return new Promise<any>((response, reject) => {
      this.http.post<types.ApiResults<any>>('/api/stepOneSave', { reportData: reportData }).subscribe(
        data => {
          if (data.success) {
            response(data.data);
          } else {
            reject(data.message);
          }
        },
        error => {
          reject(error);
        },
        () => {
          if (onComplete != null) { onComplete(); }
        }      );
    });
  }
}