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154
External/Implementations/Postgres/NoteDataAccess.cs
vendored
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154
External/Implementations/Postgres/NoteDataAccess.cs
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using MotoVaultPro.External.Interfaces;
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using MotoVaultPro.Models;
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using Npgsql;
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using System.Text.Json;
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namespace MotoVaultPro.External.Implementations
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{
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public class PGNoteDataAccess: INoteDataAccess
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{
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private NpgsqlDataSource pgDataSource;
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private readonly ILogger<PGNoteDataAccess> _logger;
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private static string tableName = "notes";
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public PGNoteDataAccess(IConfiguration config, ILogger<PGNoteDataAccess> logger)
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{
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pgDataSource = NpgsqlDataSource.Create(config["POSTGRES_CONNECTION"]);
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_logger = logger;
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try
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{
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//create table if not exist.
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string initCMD = $"CREATE SCHEMA IF NOT EXISTS app; CREATE TABLE IF NOT EXISTS app.{tableName} (id INT GENERATED BY DEFAULT AS IDENTITY primary key, vehicleId INT not null, data jsonb not null)";
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using (var ctext = pgDataSource.CreateCommand(initCMD))
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{
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ctext.ExecuteNonQuery();
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}
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} catch (Exception ex)
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{
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_logger.LogError(ex.Message);
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}
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}
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public List<Note> GetNotesByVehicleId(int vehicleId)
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{
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try
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{
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string cmd = $"SELECT data FROM app.{tableName} WHERE vehicleId = @vehicleId";
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var results = new List<Note>();
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using (var ctext = pgDataSource.CreateCommand(cmd))
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{
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ctext.Parameters.AddWithValue("vehicleId", vehicleId);
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using (NpgsqlDataReader reader = ctext.ExecuteReader())
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while (reader.Read())
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{
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Note note = JsonSerializer.Deserialize<Note>(reader["data"] as string);
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results.Add(note);
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}
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}
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return results;
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} catch (Exception ex)
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{
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_logger.LogError(ex.Message);
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return new List<Note>();
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}
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}
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public Note GetNoteById(int noteId)
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{
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try
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{
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string cmd = $"SELECT data FROM app.{tableName} WHERE id = @id";
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var result = new Note();
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using (var ctext = pgDataSource.CreateCommand(cmd))
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{
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ctext.Parameters.AddWithValue("id", noteId);
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using (NpgsqlDataReader reader = ctext.ExecuteReader())
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while (reader.Read())
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{
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Note note = JsonSerializer.Deserialize<Note>(reader["data"] as string);
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result = note;
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}
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}
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return result;
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} catch (Exception ex)
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{
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_logger.LogError(ex.Message);
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return new Note();
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}
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}
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public bool SaveNoteToVehicle(Note note)
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{
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try
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{
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if (note.Id == default)
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{
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string cmd = $"INSERT INTO app.{tableName} (vehicleId, data) VALUES(@vehicleId, CAST(@data AS jsonb)) RETURNING id";
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using (var ctext = pgDataSource.CreateCommand(cmd))
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{
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ctext.Parameters.AddWithValue("vehicleId", note.VehicleId);
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ctext.Parameters.AddWithValue("data", "{}");
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note.Id = Convert.ToInt32(ctext.ExecuteScalar());
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//update json data
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if (note.Id != default)
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{
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string cmdU = $"UPDATE app.{tableName} SET data = CAST(@data AS jsonb) WHERE id = @id";
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using (var ctextU = pgDataSource.CreateCommand(cmdU))
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{
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var serializedData = JsonSerializer.Serialize(note);
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ctextU.Parameters.AddWithValue("id", note.Id);
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ctextU.Parameters.AddWithValue("data", serializedData);
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return ctextU.ExecuteNonQuery() > 0;
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}
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}
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return note.Id != default;
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}
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}
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else
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{
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string cmd = $"UPDATE app.{tableName} SET data = CAST(@data AS jsonb) WHERE id = @id";
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using (var ctext = pgDataSource.CreateCommand(cmd))
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{
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var serializedData = JsonSerializer.Serialize(note);
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ctext.Parameters.AddWithValue("id", note.Id);
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ctext.Parameters.AddWithValue("data", serializedData);
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return ctext.ExecuteNonQuery() > 0;
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}
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}
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} catch (Exception ex)
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{
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_logger.LogError(ex.Message);
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return false;
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}
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}
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public bool DeleteNoteById(int noteId)
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{
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try
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{
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string cmd = $"DELETE FROM app.{tableName} WHERE id = @id";
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using (var ctext = pgDataSource.CreateCommand(cmd))
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{
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ctext.Parameters.AddWithValue("id", noteId);
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return ctext.ExecuteNonQuery() > 0;
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}
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} catch (Exception ex)
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{
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_logger.LogError(ex.Message);
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return false;
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}
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}
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public bool DeleteAllNotesByVehicleId(int vehicleId)
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{
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try
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{
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string cmd = $"DELETE FROM app.{tableName} WHERE vehicleId = @id";
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using (var ctext = pgDataSource.CreateCommand(cmd))
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{
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ctext.Parameters.AddWithValue("id", vehicleId);
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ctext.ExecuteNonQuery();
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return true;
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}
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} catch (Exception ex)
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{
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_logger.LogError(ex.Message);
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return false;
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}
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}
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}
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}
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