/// <summary>
/// 获取满足当前条件的歌曲
/// </summary>
/// <param name="ratingList"></param>
/// <param name="ratingClass"></param>
/// <returns></returns>
public List <PluginArcaeaSong> GetSatisfiedSong(List <string> ratingList = null, PluginArcaeaSong.RatingClass ratingClass = PluginArcaeaSong.RatingClass.Random)
{
if (_kouContext.Set <PluginArcaeaSong>().IsNullOrEmptySet())
{
return(null);
}
//处理限定难度信息
if (ratingList.IsNullOrEmptySet())
{
MultiSelectionHelper.TryGetMultiSelections(Rating, out ratingList, @"^(11|10|[1-9])\+?$");
}
//处理限定难度类型信息
Regex regex = new Regex("(,|，)?(ftr|pst|prs|byd|byn|future|past|present|beyond|all)(,|，)?", RegexOptions.IgnoreCase | RegexOptions.RightToLeft);
if (!SongName.IsNullOrEmpty() && regex.IsMatch(SongName)) //若是歌名上包含难度信息则取出来
{
RatingClass = SongName.Match("(ftr|pst|prs|byd|byn|future|past|present|beyond|all)", RegexOptions.IgnoreCase | RegexOptions.RightToLeft);
SongName = regex.Replace(SongName, "", 1).Trim();
}
if (!RatingClass.IsNullOrEmpty())//RatingClass属性优先级比该函数中的ratingClss优先级大
{
if (!Enum.TryParse(RatingClass, out ratingClass))
{
if (PluginArcaeaSong.RatingClassNameList.ContainsKey(RatingClass.ToLower()))
{
ratingClass = PluginArcaeaSong.RatingClassNameList[RatingClass.ToLower()];
}
}
}
//设定难度类型默认值为FTR
if (ratingList.IsNullOrEmptySet() && RatingClass.IsNullOrWhiteSpace() && NotesCount.IsNullOrWhiteSpace() && ChartConstant.IsNullOrWhiteSpace() && Rating.IsNullOrWhiteSpace()) //不指定难度类型则默认是future难度，后面是不默认ftr
{
ratingClass = PluginArcaeaSong.RatingClass.Future;
}
//处理歌名信息
if (!SongName.IsNullOrWhiteSpace())
{
SongName = SongName.Trim().ToLower();
string songEnID = _kouContext.Set <PluginArcaeaSongAnotherName>().FirstOrDefault(s => s.AnotherName == SongName)?.SongEnId;
if (songEnID != null)
{
SongEnID = songEnID;
SongName = null;
}
}
//将需要用到的过滤器放到过滤容器里
FilterContainer <PluginArcaeaSong> filterContainer = new FilterContainer <PluginArcaeaSong>();
//使用默认ModelFilter
filterContainer.AddAutoModelFilter(nameof(PluginArcaeaSong.SongTitle), SongName, FilterType.Default, SortType.Ascending);//增加Song_title字段的默认filter
filterContainer.AddAutoModelFilter(nameof(PluginArcaeaSong.SongEnId), SongEnID, FilterType.Exact);
if (ratingClass != PluginArcaeaSong.RatingClass.Random)
{
filterContainer.AddAutoModelFilter(nameof(PluginArcaeaSong.ChartRatingClass), ratingClass, FilterType.SupportValueDefault);
}
filterContainer.AddAutoModelFilter(nameof(PluginArcaeaSong.SongArtist), SongArtist, FilterType.Default, SortType.Ascending);
filterContainer.AddAutoModelFilter(nameof(PluginArcaeaSong.ChartDesigner), ChartDesigner, FilterType.Default, SortType.Ascending);
filterContainer.AddAutoModelFilter(nameof(PluginArcaeaSong.JacketDesigner), JacketDesigner, FilterType.Default, SortType.Ascending);
filterContainer.AddAutoModelFilter(nameof(PluginArcaeaSong.ChartAllNotes), NotesCount, FilterType.Default, SortType.StringAuto);
filterContainer.AddAutoModelFilter(nameof(PluginArcaeaSong.ChartConstant), ChartConstant, FilterType.Default, SortType.StringAuto);
filterContainer.AddAutoModelFilter(nameof(PluginArcaeaSong.SongLength), SongLength, FilterType.Default, SortType.StringAuto);
filterContainer.AddAutoModelFilter(nameof(PluginArcaeaSong.SongBpm), SongBPM, FilterType.Interval, SortType.StringAuto);
filterContainer.ActivateAutoModelFilter();
//加入自定义的filter
if (!ratingList.IsNullOrEmptySet())
{
filterContainer.Add(FilterContainer <PluginArcaeaSong> .Convert(PluginArcaeaSong.RatingNumFilter), ratingList);
}
//开始筛选
var selectedList = _kouContext.Set <PluginArcaeaSong>().ToList();
selectedList = selectedList.Where(song => filterContainer.StartFilter(song)).ToList();
var sorter = filterContainer.GetModelSorter();//若有sorter则排序
if (sorter != null)
{
selectedList.Sort(sorter);
}
return(selectedList);
}
public string getFileName()
{
return(Singer.Trim() + "-" + SongName.Trim() + ".mp3");
}