syntax = "proto3";

package osu.music.api.v1;

option go_package = "github.com/juli0n21/osu-music/api/v1";

import "google/api/annotations.proto";

service MusicBackend {
    rpc Collections(CollectionRequest) returns (CollectionResponse) {
        option (google.api.http) = {
            get: "/api/v1/collections"
        };
    }
    rpc Song(SongRequest) returns (SongResponse){
        option (google.api.http) = {
            get: "/api/v1/song/{hash}"
        };
    }
    rpc Artist(ArtistRequest) returns (ArtistResponse){
        option (google.api.http) = {
            get: "/api/v1/artist/{artist}"
        };
    }
    rpc Favorite(FavoriteRequest) returns (FavoriteResponse){
        option (google.api.http) = {
            get: "/api/v1/favorites"
        };
    }
    rpc Recent(RecentRequest) returns (RecentResponse){
        option (google.api.http) = {
            get: "/api/v1/recent"
        };
    }

    rpc Search(SearchSharedRequest) returns (SearchSharedResponse) {
        option (google.api.http) = {
            get: "/api/v1/search"
        };
    }
    rpc SearchArtists(SearchArtistRequest) returns (SearchArtistResponse) {
        option (google.api.http) = {
            get: "/api/v1/search/artists"
        };
    }
    rpc SearchCollections(SearchCollectionRequest) returns (SearchCollectionResponse) {
        option (google.api.http) = {
            get: "/api/v1/search/collections"
        };
    }
    rpc Ping(PingRequest) returns (PingResponse) {
    option (google.api.http) = {
            get: "/ping"
        };
    }
}

//===== songs =====
message CollectionRequest {
    string name = 1;
    int32 index = 2;
    int32 limit = 3;
    int32 offset = 4;
}

message CollectionResponse {
    string name = 1;
    int32 items = 2;
    repeated Song songs = 3;
}


message SongRequest {
    string hash = 1;
}

message SongResponse {
    Song song = 1;
}

message ArtistRequest {
    string artist = 1;
}

message ArtistResponse {
    repeated Song songs = 1;
}

message FavoriteRequest {
    string query = 1;
    int32 limit = 2;
    int32 offset = 3;
}

message FavoriteResponse {
    repeated Song songs = 1;
}

message RecentRequest {
    int32 limit = 2;
    int32 offset = 3;
}

message RecentResponse {
    repeated Song songs = 1;
}

//===== search =====
message SearchSharedRequest {
    string query = 1;
    int32 limit = 2;
    int32 offset = 3;
}

message SearchSharedResponse {
    string artist = 1;
    repeated Song songs = 2;
}

message SearchArtistRequest {
    string query = 1;
    int32 limit = 2;
    int32 offset = 3;
}

message SearchArtistResponse {
    repeated Artist Artists = 1;    
}

message Artist {
    string artist = 1;
    int32 items = 2;
}

message SearchCollectionRequest {
    string query = 1;
    int32 limit = 2;
    int32 offset = 3;
}

message SearchCollectionResponse {
    repeated CollectionPreview collections = 1; 
}

message CollectionPreview {
    string name = 1;
    string image = 2;
    int32 items = 3;

}
//===== status =====
message PingRequest {
    string ping = 1;
}

message PingResponse {
    string pong = 1;
}

//===== models =====
message Song {
    int32 beatmap_id = 1;
    string md5_hash = 2;
    string title = 3;
    string artist = 4;
    string creator = 5;
    string folder = 6;
    string file = 7;
    string audio = 8;
    int64 total_time = 9;
    string image = 10;
}