An Android Library for Ampache

Usage:

init the library in your application class:

```java AmpacheApi.INSTANCE.initSession(this); ```

if the user has already logged in before, and not logged out:

```java if (AmpacheSession.INSTANCE.isUserAuthenticated()) { AmpacheApi.INSTANCE.initUser() .subscribe(aVoid -> { // user initialized successfully }, throwable -> { // there was a problem initializing the user, check the message in throwable }); } ```

initialize a new user:

```java String url = "yourAmpacheInstanceURL"; String username = "yourAmpacheUsername"; String password = "yourAmpacheUserPassword";

AmpacheApi.INSTANCE.initUser(url,username,password) .subscribe(aVoid -> { // this is a valid user, it's possible to initiate the handshake }, throwable -> { // not a valid user });

<h4>after initializing a user, do the handshake to login:</h4>
```java
AmpacheApi.INSTANCE.handshake()
    .subscribe(handshakeResponse -> {
        // handshake successful, user logged in
    }, throwable -> {
        // error handshake, check throwable
});

those 2 calls can be chained:

```java String url = "yourAmpacheInstanceURL"; String username = "yourAmpacheUsername"; String password = "yourAmpacheUserPassword";

AmpacheApi.INSTANCE.initUser(url,username,password) .flatMap(aVoid -> AmpacheApi.INSTANCE.handshake()) .subscribe(handshakeResponse -> { // handshake successful, user logged in }, throwable -> { // error handshake, check throwable }); });

<h4>request all the artists:</h4>
```java
AmpacheApi.INSTANCE.getArtists())
    .subscribe(List<Artists> artists -> ....)

request all the albums:

```java AmpacheApi.INSTANCE.getAlbums()) .subscribe(List albums -> ....) ```

request all the songs:

```java AmpacheApi.INSTANCE.getSongs()) .subscribe(List songs -> ....) ```

request all the albums from a given artist id:

```java AmpacheApi.INSTANCE.getAlbumsFromArtist(artistId)) .subscribe(List albums -> ....) ```

request all songs from a given album id:

```java AmpacheApi.INSTANCE.getSongsFromAlbum(albumId)) .subscribe(List songs -> ....) ```

ping

the ampache session will expire, the expiration time is stored inside the handshake response, to avoid the expiration of the session ping the server periodically: ```java AmpacheApi.INSTANCE.ping()) .subscribe(PingResponse pingResponse -> ....) ```

error handling:

for every API request, in the request fails check if the throwable instance returned is instance of AmpacheApiException, in that case you can cast to it and get other info about the error ```java public void onError(Throwable throwable) { String message; if (throwable instanceof AmpacheApiException) { message = "Ampache error\ncode:" + ((AmpacheApiException) throwable).getAmpacheError().getCode() + "\nerror: " + ((AmpacheApiException) throwable).getAmpacheError().getError(); } else if (throwable.getLocalizedMessage()!=null) { message = throwable.getLocalizedMessage(); } else { message = "Undefined error"; } } ```