104 lines
2.9 KiB
C#
104 lines
2.9 KiB
C#
using System;
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using System.Collections.Generic;
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using System.Globalization;
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using System.IO;
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using System.Text.Json;
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using System.CommandLine.DragonFruit;
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using System.Linq;
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using System.Text.Json.Serialization;
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using CsvHelper;
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namespace BunyMuny {
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internal class Program {
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/// <summary>
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/// BunyMuny parses the CSV output of various bank statement listings and converts it to something more human readable with nice visualisations.
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/// </summary>
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/// <param name="file">The CSV file to read</param>
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/// <param name="ruleFile">The JSON file to use for rules when parsing statement descriptions</param>
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/// <returns></returns>
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private static int Main(string file = "test.csv", string ruleFile = "rules.json") {
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var bank = Bank.Other;
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var statements = new List<Statement>();
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List<Rule> rules;
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using (var ruleStreamReader = new StreamReader(ruleFile)) {
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var jsonOptions = new JsonSerializerOptions();
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jsonOptions.Converters.Add(new JsonStringEnumConverter(JsonNamingPolicy.CamelCase));
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jsonOptions.WriteIndented = true;
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rules = JsonSerializer.Deserialize<List<Rule>>(ruleStreamReader.ReadToEnd(), jsonOptions);
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}
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using var sr = new StreamReader(file);
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using var csv = new CsvReader(sr, CultureInfo.InvariantCulture);
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csv.Read();
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csv.ReadHeader();
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// get the first line of the CSV file (the header) as a string
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var header = csv.Parser.Context.RawRecord.Trim();
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switch (header) {
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case null:
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Console.WriteLine("File is empty 0uo");
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return 1;
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case "Date,Description,Debits and credits,Balance":
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bank = Bank.ME;
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break;
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case "Whatever NAB uses I guess":
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bank = Bank.NAB;
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break;
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default:
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Console.WriteLine($"Unknown header: [{header}]");
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break;
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}
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while (csv.Read()) {
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switch (bank) {
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case Bank.ME:
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var value = double.Parse(csv.GetField("Debits and credits").TrimStart().Replace("$", ""));
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// SHOW PET THIS
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var ruleValues = MatchAgainstRules(rules, csv.GetField("Description"));
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statements.Add(new Statement() {
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Date = DateTime.ParseExact(csv.GetField("Date"), "dd/MM/yyyy", CultureInfo.InvariantCulture),
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OriginalDescription = csv.GetField("Description"),
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Description = ruleValues.Description,
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Category = ruleValues.Category,
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Value = value
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});
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break;
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case Bank.NAB:
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Console.WriteLine("Unimplemented");
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return 1;
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case Bank.Other:
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Console.WriteLine("Unknown bank!");
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return 1;
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default:
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Console.WriteLine(":(");
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return 1;
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}
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}
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foreach (var statement in statements.
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Where(s => s.Category != null).
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OrderBy(s => s.Date)) {
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Console.WriteLine(statement);
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}
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return 0;
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}
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private static (string Category, string Description) MatchAgainstRules(List<Rule> rules, string value) {
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foreach (var rule in rules) {
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if (rule.Check(value)) {
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return (rule.Category, rule.Description);
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}
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}
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return (null, null);
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}
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}
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}
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