//
//  FileSorts.cpp
//
//  Gamelist sorting functions.
//  Actual sorting takes place in FileData.
//

#include "FileSorts.h"

#include "utils/StringUtil.h"

namespace FileSorts
{
    const FileData::SortType typesArr[] = {
        FileData::SortType(&compareName, true, "filename, ascending"),
        FileData::SortType(&compareName, false, "filename, descending"),

        FileData::SortType(&compareRating, true, "rating, ascending"),
        FileData::SortType(&compareRating, false, "rating, descending"),

        FileData::SortType(&compareTimesPlayed, true, "times played, ascending"),
        FileData::SortType(&compareTimesPlayed, false, "times played, descending"),

        FileData::SortType(&compareLastPlayed, true, "last played, ascending"),
        FileData::SortType(&compareLastPlayed, false, "last played, descending"),

        FileData::SortType(&compareNumPlayers, true, "number players, ascending"),
        FileData::SortType(&compareNumPlayers, false, "number players, descending"),

        FileData::SortType(&compareReleaseDate, true, "release date, ascending"),
        FileData::SortType(&compareReleaseDate, false, "release date, descending"),

        FileData::SortType(&compareGenre, true, "genre, ascending"),
        FileData::SortType(&compareGenre, false, "genre, descending"),

        FileData::SortType(&compareDeveloper, true, "developer, ascending"),
        FileData::SortType(&compareDeveloper, false, "developer, descending"),

        FileData::SortType(&comparePublisher, true, "publisher, ascending"),
        FileData::SortType(&comparePublisher, false, "publisher, descending"),

        FileData::SortType(&compareSystem, true, "system, ascending"),
        FileData::SortType(&compareSystem, false, "system, descending")
    };

    const std::vector<FileData::SortType> SortTypes(typesArr, typesArr +
            sizeof(typesArr)/sizeof(typesArr[0]));

    // Returns if file1 should come before file2.
    bool compareName(const FileData* file1, const FileData* file2)
    {
        // We compare the actual metadata name, as collection files have the system
        // appended which messes up the order.
        std::string name1 = Utils::String::toUpper(file1->metadata.get("sortname"));
        std::string name2 = Utils::String::toUpper(file2->metadata.get("sortname"));
        if (name1.empty()){
            name1 = Utils::String::toUpper(file1->metadata.get("name"));
        }
        if (name2.empty()){
            name2 = Utils::String::toUpper(file2->metadata.get("name"));
        }
        return name1.compare(name2) < 0;
    }

    bool compareRating(const FileData* file1, const FileData* file2)
    {
        return file1->metadata.getFloat("rating") < file2->metadata.getFloat("rating");
    }

    bool compareTimesPlayed(const FileData* file1, const FileData* file2)
    {
        //only games have playcount metadata
        if (file1->metadata.getType() == GAME_METADATA && file2->metadata.getType() == GAME_METADATA)
            return (file1)->metadata.getInt("playcount") < (file2)->metadata.getInt("playcount");

        return false;
    }

    bool compareLastPlayed(const FileData* file1, const FileData* file2)
    {
        // Since it's stored as an ISO string (YYYYMMDDTHHMMSS), we can compare as a string
        // which is a lot faster than the time casts and the time comparisons.
        return (file1)->metadata.get("lastplayed") < (file2)->metadata.get("lastplayed");
    }

    bool compareNumPlayers(const FileData* file1, const FileData* file2)
    {
        return (file1)->metadata.getInt("players") < (file2)->metadata.getInt("players");
    }

    bool compareReleaseDate(const FileData* file1, const FileData* file2)
    {
        // Since it's stored as an ISO string (YYYYMMDDTHHMMSS), we can compare as a string
        // which is a lot faster than the time casts and the time comparisons.
        return (file1)->metadata.get("releasedate") < (file2)->metadata.get("releasedate");
    }

    bool compareGenre(const FileData* file1, const FileData* file2)
    {
        std::string genre1 = Utils::String::toUpper(file1->metadata.get("genre"));
        std::string genre2 = Utils::String::toUpper(file2->metadata.get("genre"));
        return genre1.compare(genre2) < 0;
    }

    bool compareDeveloper(const FileData* file1, const FileData* file2)
    {
        std::string developer1 = Utils::String::toUpper(file1->metadata.get("developer"));
        std::string developer2 = Utils::String::toUpper(file2->metadata.get("developer"));
        return developer1.compare(developer2) < 0;
    }

    bool comparePublisher(const FileData* file1, const FileData* file2)
    {
        std::string publisher1 = Utils::String::toUpper(file1->metadata.get("publisher"));
        std::string publisher2 = Utils::String::toUpper(file2->metadata.get("publisher"));
        return publisher1.compare(publisher2) < 0;
    }

    bool compareSystem(const FileData* file1, const FileData* file2)
    {
        std::string system1 = Utils::String::toUpper(file1->getSystemName());
        std::string system2 = Utils::String::toUpper(file2->getSystemName());
        return system1.compare(system2) < 0;
    }
};