import { Injectable } from '@angular/core';
import { Post } from '../../../model/Post';
import { AuthService } from '../auth/auth.service';

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

  constructor(private auth: AuthService) { }

  examplePosts: Array<Post> = new Array<Post>(
    {
      user: {
        username: "Zámbó Jimmy",
        picture: "assets/placeholder-profile-picture.png",
        followed: true
      },
      content: "Bukott diák vagyok én, nem bírom el a szenvedést.",
      image: "assets/placeholder-profile-picture.png",
      likes: 1,
      liked: true
    },
    {
      user: {
        username: "Zámbó Jimmy",
        picture: "assets/placeholder-profile-picture.png",
        followed: true
      },
      content: "Bukott diák vagyok én, nem bírom el a szenvedést.",
      image: "assets/placeholder-profile-picture.png",
      likes: 1,
      liked: true
    },
    {
      user: {
        username: "Zámbó Jimmy",
        picture: "assets/placeholder-profile-picture.png",
        followed: true
      },
      content: "Bukott diák vagyok én, nem bírom el a szenvedést.",
      image: "assets/placeholder-profile-picture.png",
      likes: 1,
      liked: true
    },
    {
      user: {
        username: "Zámbó Jimmy",
        picture: "assets/placeholder-profile-picture.png",
        followed: true
      },
      content: "Bukott diák vagyok én, nem bírom el a szenvedést.",
      image: "assets/placeholder-profile-picture.png",
      likes: 1,
      liked: true
    },
  );

  getFeed(length: Number, start: Number): Promise<Array<Post>> {
    return new Promise<Array<Post>>((resolve, reject) => {
      // TODO: fetch feed
      this.auth.getToken()
        .then( (token)=> {
          resolve(this.examplePosts);
        })
        .catch( ()=> { reject() });
    });
  }

  getPosts(username: String, lenght: Number, start: Number) {
    return new Promise<Array<Post>>((resolve, reject) => {
      // TODO: fetch feed
      this.auth.getToken()
        .then( (token)=> {
          resolve(this.examplePosts);
        })
        .catch( ()=> { reject() });
    });
  }
}