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208 lines
5.2 KiB
JavaScript

"use strict";
const BASE_URL = "https://hack-or-snooze-v3.herokuapp.com";
/******************************************************************************
* Story: a single story in the system
*/
class Story {
/** Make instance of Story from data object about story:
* - {title, author, url, username, storyId, createdAt}
*/
constructor({ storyId, title, author, url, username, createdAt }) {
this.storyId = storyId;
this.title = title;
this.author = author;
this.url = url;
this.username = username;
this.createdAt = createdAt;
}
/** Parses hostname out of URL and returns it. */
getHostName() {
// UNIMPLEMENTED: complete this function!
return "hostname.com";
}
}
/******************************************************************************
* List of Story instances: used by UI to show story lists in DOM.
*/
class StoryList {
constructor(stories) {
this.stories = stories;
}
/** Generate a new StoryList. It:
*
* - calls the API
* - builds an array of Story instances
* - makes a single StoryList instance out of that
* - returns the StoryList instance.
*/
static async getStories() {
// Note presence of `static` keyword: this indicates that getStories is
// **not** an instance method. Rather, it is a method that is called on the
// class directly. Why doesn't it make sense for getStories to be an
// instance method?
// query the /stories endpoint (no auth required)
const response = await axios({
url: `${BASE_URL}/stories`,
method: "GET",
});
// turn plain old story objects from API into instances of Story class
const stories = response.data.stories.map(story => new Story(story));
// build an instance of our own class using the new array of stories
return new StoryList(stories);
}
/** Adds story data to API, makes a Story instance, adds it to story list.
* - user - the current instance of User who will post the story
* - obj of {title, author, url}
*
* Returns the new Story instance
*/
async addStory(user, newStory) {
console.debug("addStory called");
console.log("user.loginToken = ", user.loginToken);
const response = await axios.post(
`${BASE_URL}/stories`,
{ token: user.loginToken, story: newStory }
);
const story = new Story(response.data.story);
this.stories.unshift(story);
2 years ago
return story;
}
}
/******************************************************************************
* User: a user in the system (only used to represent the current user)
*/
class User {
/** Make user instance from obj of user data and a token:
* - {username, name, createdAt, favorites[], ownStories[]}
* - token
*/
constructor({
username,
name,
createdAt,
favorites = [],
ownStories = []
},
token) {
this.username = username;
this.name = name;
this.createdAt = createdAt;
// instantiate Story instances for the user's favorites and ownStories
this.favorites = favorites.map(s => new Story(s));
this.ownStories = ownStories.map(s => new Story(s));
// store the login token on the user so it's easy to find for API calls.
this.loginToken = token;
}
/** Register new user in API, make User instance & return it.
*
* - username: a new username
* - password: a new password
* - name: the user's full name
*/
static async signup(username, password, name) {
const response = await axios({
url: `${BASE_URL}/signup`,
method: "POST",
data: { user: { username, password, name } },
});
const { user } = response.data;
return new User(
{
username: user.username,
name: user.name,
createdAt: user.createdAt,
favorites: user.favorites,
ownStories: user.stories
},
response.data.token
);
}
/** Login in user with API, make User instance & return it.
* - username: an existing user's username
* - password: an existing user's password
*/
static async login(username, password) {
const response = await axios({
url: `${BASE_URL}/login`,
method: "POST",
data: { user: { username, password } },
});
const { user } = response.data;
return new User(
{
username: user.username,
name: user.name,
createdAt: user.createdAt,
favorites: user.favorites,
ownStories: user.stories
},
response.data.token
);
}
/** When we already have credentials (token & username) for a user,
* we can log them in automatically. This function does that.
*/
static async loginViaStoredCredentials(token, username) {
try {
const response = await axios({
url: `${BASE_URL}/users/${username}`,
method: "GET",
params: { token },
});
const { user } = response.data;
return new User(
{
username: user.username,
name: user.name,
createdAt: user.createdAt,
favorites: user.favorites,
ownStories: user.stories
},
token
);
} catch (err) {
console.error("loginViaStoredCredentials failed", err);
return null;
}
}
}