81 lines
3.6 KiB
C#
81 lines
3.6 KiB
C#
using DualScreenDemo;
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namespace DBObj
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{
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public class SongListManager
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{
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public List<SongData> FavoriteSongs { get; private set; }
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//public bool IsUserLoggedIn { get; set; }
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//public string UserPhoneNumber { get; set; }
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public SongListManager()
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{
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FavoriteSongs = new List<SongData>();
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}
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/*
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public void AddNewUser(string phoneNumber)
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{
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string databasePath = Path.Combine(Application.StartupPath, "db", databaseFileName);
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string connectionString = String.Format("Data Source={0};Version=3;", databasePath);
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using (var connection = new SQLiteConnection(connectionString))
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{
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try
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{
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connection.Open();
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string checkTableSql = "SELECT name FROM sqlite_master WHERE type='table' AND name='FavoriteSongs';";
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using (var checkCommand = new SQLiteCommand(checkTableSql, connection))
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{
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var result = checkCommand.ExecuteScalar();
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if (result == null)
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{
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throw new Exception("Table 'FavoriteSongs' does not exist.");
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}
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}
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string sql = "INSERT INTO FavoriteSongs (PhoneNumber, SongNumber) VALUES (@PhoneNumber, @SongNumber)";
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using (var command = new SQLiteCommand(sql, connection))
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{
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command.Parameters.AddWithValue("@PhoneNumber", phoneNumber);
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command.Parameters.AddWithValue("@SongNumber", "000000");
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command.ExecuteNonQuery();
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}
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connection.Close();
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}
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catch (Exception ex)
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{
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Console.WriteLine("Failed to add new user to SQLite database: " + ex.Message);
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}
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}
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}
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*/
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public List<SongData> SearchNewSongs(){
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string query= $"SELECT * FROM song_library_cache WHERE language_name = '國語' ORDER BY add_date DESC LIMIT {PrimaryForm.ReadNewSongLimit()}";
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return PrimaryForm.Instance.SearchSongs_Mysql(query);
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}
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public List<SongData> SearchHotSongs(){
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string query= $"SELECT * FROM song_library_cache WHERE language_name = '國語' ORDER BY song_conts DESC LIMIT {PrimaryForm.ReadHotSongLimit()}";
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return PrimaryForm.Instance.SearchSongs_Mysql(query);
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}
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public List<SongData> SearchSongsBySinger(string keyword)
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{
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Console.WriteLine("keyword : " + keyword);
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var keywordLower = keyword.ToLower();
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string query = $"SELECT * FROM song_library_cache WHERE artistA LIKE '%{keywordLower}%' OR artistB LIKE'%{keywordLower}% ORDER BY song_counts DESC;'";
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return PrimaryForm.Instance.SearchSongs_Mysql(query);
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}
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public List<SongData> SearchSongsByName(string keyword)
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{
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string query = $"SELECT * FROM song_library_cache WHERE LOWER(song_name) LIKE CONCAT('%', LOWER('{keyword}'), '%')";
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return PrimaryForm.Instance.SearchSongs_Mysql(query);
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}
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public SongData SearchSongByNumber(string songNumber)
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{
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string query = $"SELECT * FROM song_library_cache WHERE song_id = {songNumber}";
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var searchResults =PrimaryForm.Instance.SearchSongs_Mysql(query);
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return searchResults.FirstOrDefault();
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}
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}
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} |