file-folder-helper/ADO2025/PI5/Helper-2025-02-28.cs
2025-03-01 09:20:35 -07:00

122 lines
4.3 KiB
C#

using Microsoft.Extensions.Logging;
using System.Collections.ObjectModel;
using System.Text.Json;
namespace File_Folder_Helper.ADO2025.PI5;
internal static partial class Helper20250228
{
private record Record(string TableName, ReadOnlyCollection<string> Columns, ReadOnlyCollection<string[]> Rows);
private static ReadOnlyCollection<Record> GetRecords(string headerA, string headerB, string file)
{
List<Record> results = [];
string line;
string[] segmentsA;
string[] segmentsB;
string[] segmentsC;
string[] segmentsD;
string[] segmentsE;
string[] segmentsF;
List<string[]> rows;
string? tableName = null;
string[] lines = File.ReadAllLines(file);
ReadOnlyCollection<string>? columns = null;
for (int i = 0; i < lines.Length; i++)
{
line = lines[i];
if (tableName is null)
{
segmentsA = line.Split(headerA);
if (segmentsA.Length != 2)
continue;
segmentsB = segmentsA[1].Split(headerB);
if (segmentsB.Length != 2)
continue;
segmentsC = segmentsB[0].Split('(');
if (segmentsC.Length != 2)
continue;
segmentsD = segmentsC[1].Split(')');
if (segmentsD.Length != 2)
continue;
columns = segmentsD[0].Split(',').Select(l => l.Trim(' ').Trim('"')).ToArray().AsReadOnly();
if (columns.Count == 0)
continue;
segmentsE = segmentsB[0].Split(' ');
tableName = segmentsE[0];
}
else if (columns is null)
break;
else
{
rows = [];
for (int j = i + 1; j < lines.Length; j++)
{
i = j;
segmentsF = lines[j].Split('\t');
if (segmentsF.Length != columns.Count)
{
if (rows.Count > 0)
results.Add(new(TableName: tableName, Columns: columns, Rows: rows.AsReadOnly()));
break;
}
rows.Add(segmentsF);
}
columns = null;
tableName = null;
}
}
return results.AsReadOnly();
}
private static void WriteFile(string file, ReadOnlyCollection<Record> records)
{
List<string> results = [];
string json;
string text;
Dictionary<string, string?> keyValuePairs = [];
foreach (Record record in records)
{
results.Clear();
foreach (string[] row in record.Rows)
{
keyValuePairs.Clear();
for (int i = 0; i < row.Length; i++)
{
if (row[i] == "\\N")
keyValuePairs.Add(record.Columns[i], null);
else
keyValuePairs.Add(record.Columns[i], row[i]);
}
json = JsonSerializer.Serialize(keyValuePairs);
results.Add(json);
}
text = string.Join($",{Environment.NewLine}", results);
File.WriteAllText($"{file[..^4]}-{record.TableName}.json", $"[{Environment.NewLine}{text}{Environment.NewLine}]");
}
}
private static void PostgresDumpToJson(ILogger<Worker> logger, string headerA, string headerB, string file)
{
ReadOnlyCollection<Record> records = GetRecords(headerA, headerB, file);
if (records.Count > 0)
WriteFile(file, records);
else
logger.LogWarning("<{records}>(s)", records.Count);
}
internal static void PostgresDumpToJson(ILogger<Worker> logger, List<string> args)
{
string searchPattern = args[2];
string headerA = args[3].Replace('_', ' ');
string headerB = args[4].Replace('_', ' ');
string sourceDirectory = Path.GetFullPath(args[0]);
string[] files = Directory.GetFiles(sourceDirectory, searchPattern, SearchOption.AllDirectories);
if (files.Length != 1)
logger.LogWarning("<{files}>(s)", files.Length);
else
PostgresDumpToJson(logger, headerA, headerB, files[0]);
}
}