api_playlists.go

//
//  tank
//
//  Import and Playlist Daemon for autoradio project
//
//
//  Copyright (C) 2017-2018 Christian Pointner <equinox@helsinki.at>
//
//  This file is part of tank.
//
//  tank is free software: you can redistribute it and/or modify
//  it under the terms of the GNU General Public License as published by
//  the Free Software Foundation, either version 3 of the License, or
//  any later version.
//
//  tank is distributed in the hope that it will be useful,
//  but WITHOUT ANY WARRANTY; without even the implied warranty of
//  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
//  GNU General Public License for more details.
//
//  You should have received a copy of the GNU General Public License
//  along with tank. If not, see <http://www.gnu.org/licenses/>.
//

package v1

import (
	"encoding/json"
	"net/http"

	"github.com/gorilla/mux"
	"gitlab.servus.at/autoradio/tank/store"
)

func (api *API) ListPlaylistsOfGroup() http.Handler {
	return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
		vars := mux.Vars(r)
		// TODO: implement pagination
		playlists, err := api.store.ListPlaylists(vars["group-id"])
		if err != nil {
			sendStoreError(w, err)
			return
		}
		sendWebResponse(w, http.StatusOK, PlaylistsListing{playlists})
	})
}

func (api *API) CreatePlaylistForGroup() http.Handler {
	return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
		vars := mux.Vars(r)
		playlist := &store.Playlist{}
		err := json.NewDecoder(r.Body).Decode(playlist)
		if err != nil {
			sendWebResponse(w, http.StatusBadRequest, ErrorResponse{Error: "error decoding playlist: " + err.Error()})
			return
		}
		if playlist, err = api.store.CreatePlaylist(vars["group-id"], *playlist); err != nil {
			sendStoreError(w, err)
			return
		}
		sendWebResponse(w, http.StatusCreated, playlist)
	})
}

func (api *API) ReadPlaylistOfGroup() http.Handler {
	return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
		vars := mux.Vars(r)
		id, err := idFromString(vars["playlist-id"])
		if err != nil {
			sendWebResponse(w, http.StatusBadRequest, ErrorResponse{Error: "invalid playlist-id: " + err.Error()})
			return
		}
		playlist, err := api.store.GetPlaylist(vars["group-id"], id)
		if err != nil {
			sendStoreError(w, err)
			return
		}
		sendWebResponse(w, http.StatusOK, playlist)
	})
}

func (api *API) UpdatePlaylistOfGroup() http.Handler {
	return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
		vars := mux.Vars(r)
		id, err := idFromString(vars["playlist-id"])
		if err != nil {
			sendWebResponse(w, http.StatusBadRequest, ErrorResponse{Error: "invalid playlist-id: " + err.Error()})
			return
		}
		playlist := &store.Playlist{}
		if err = json.NewDecoder(r.Body).Decode(playlist); err != nil {
			sendWebResponse(w, http.StatusBadRequest, ErrorResponse{Error: "error decoding playlist: " + err.Error()})
			return
		}
		if playlist, err = api.store.UpdatePlaylist(vars["group-id"], id, *playlist); err != nil {
			sendStoreError(w, err)
			return
		}
		sendWebResponse(w, http.StatusOK, playlist)
	})
}

func (api *API) DeletePlaylistOfGroup() http.Handler {
	return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
		vars := mux.Vars(r)
		id, err := idFromString(vars["playlist-id"])
		if err != nil {
			sendWebResponse(w, http.StatusBadRequest, ErrorResponse{Error: "invalid playlist-id: " + err.Error()})
			return
		}
		if err = api.store.DeletePlaylist(vars["group-id"], id); err != nil {
			sendStoreError(w, err)
			return
		}
		sendWebResponse(w, http.StatusNoContent, nil)
	})
}