using System.IO;

namespace MU3.Data;

class patch_DataManager: DataManager {
    private extern void orig_linkFumenAnalysisData();
    private const string SEPARATOR = "$";
    private string PrintHeader() {
        return string.Join(SEPARATOR, new string[] {
            "id",
            "name",
            "difficulty",
            "name for sort",
            "artist",
            "genre",
            "internal level",
            "charter",
            "max platinum score",
            "release date",
            "release version",
            "bpm",
            "location"
        });
    }
    private string PrintLine(FumenData fumen, MusicData mus, int level) {
        return string.Join(SEPARATOR, new string[] {
            mus.id.ToString(),
            mus.name,
            level.ToString(),
            mus.nameForSort,
            mus.artistName,
            mus.genreName,
            fumen.fumenConst.ToString(),
            fumen.notesDesignerName ?? "",
            fumen.platinumScoreMax.ToString(),
            mus.ReleaseVersion.ToUniversalTime().ToString(),
            mus.versionTitle,
            fumen.bpm.ToString(),
            fumen.fumenFile.Substring(fumen.fumenFile.LastIndexOf('A'))
        });
    }

    private void linkFumenAnalysisData() {
        orig_linkFumenAnalysisData();
        using StreamWriter writer = new("charts.csv");
        writer.WriteLine(PrintHeader());
        foreach(var mus in allMusicData) {
            int i = 0;
            foreach(var fumen in mus.fumenData) {
                if(fumen.isExist) {
                    writer.WriteLine(PrintLine(fumen, mus, i));
                }
                i += 1;
            }
        }
        UnityEngine.Debug.Log("[ExportChartData] Written to charts.csv");
    }
}