predicate.h

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#pragma once
 
#include <config.h>
 
#include <memory>
 
#include "fundamentals.h"
#include "filter.h"
 
 
#define PREDKEY_MANNER "manner"
#define PREDKEY_TYPE "type"
#define PREDKEY_SEEDTYPE "seedtype"
#define PREDKEY_SOURCE "source"
 
#define PARSER_SIMPLE_LIST_PREDICATE "simpleListPredicate"
#define PARSER_LIST_PREDICATE "listPredicate"
#define PARSER_SEED_PREDICATE "seedPredicate"
#define PARSER_SINGLE_PREDICATE "singleItemPredicate"
#define PARSER_PLAYLIST_LIST "playlistPredicate"
#define PARSER_SINGLE_PLAYLIST "singlePlaylistPredicate"
 
#define KEY_PREDICATE "predicate"
#define KEY_PLAYLIST "playlist"
 
#define SIMPLE_LIST_PREDICATE " {" KEY_PREDICATE ":" PARSER_SIMPLE_LIST_PREDICATE "} ..."
#define LIST_PREDICATE " {" KEY_PREDICATE ":" PARSER_LIST_PREDICATE "} ..."
#define SEED_PREDICATE " {" KEY_PREDICATE ":" PARSER_SEED_PREDICATE "} ..."
#define SINGLE_PREDICATE " {" KEY_PREDICATE ":" PARSER_SINGLE_PREDICATE "}"
#define LIST_PLAYLIST " {" KEY_PLAYLIST ":" PARSER_PLAYLIST_LIST "} ..."
#define SINGLE_PLAYLIST " {" KEY_PLAYLIST ":" PARSER_SINGLE_PLAYLIST "}"
 
namespace Predicate {
    void construct_predicate_parsers (class PianodParser *parser);
 
    inline bool havePredicate (const Parsnip::Data &options) {
        return options.contains (PREDKEY_MANNER);
    }
 
    std::unique_ptr <Filter> getPredicate (const PianodConnection &conn,
                                           const Parsnip::Data &predicate,
                                           Filter::Field field = Filter::Field::Search);
 
    // Generic Things
    ThingieList getSpecifiedThings (const PianodConnection &conn,
                                    const Parsnip::Data &predicate,
                                    SearchRange search_what = SearchRange::KNOWN);
    MusicThingie *getSpecifiedThing (const PianodConnection &conn,
                                     const Parsnip::Data &predicate);
 
    // Songs
    SongList getSpecifiedSongs (const PianodConnection &conn,
                                const Parsnip::Data &predicate,
                                SearchRange search_what = SearchRange::KNOWN);
    PianodSong *getSpecifiedSong (const PianodConnection &conn,
                                  const Parsnip::Data &predicate);
 
    // Playlists
    PlaylistList getSpecifiedPlaylists (const PianodConnection &conn,
                                        const Parsnip::Data &predicate);
    PianodPlaylist *getSpecifiedPlaylist (const PianodConnection &conn,
                                          const Parsnip::Data &predicate);
 
}