Files
Ai/TrafagSalesExporter/Services/ManagementCockpitService.cs
T
2026-04-15 11:18:26 +02:00

388 lines
17 KiB
C#

using ClosedXML.Excel;
using Microsoft.EntityFrameworkCore;
using TrafagSalesExporter.Data;
using TrafagSalesExporter.Models;
namespace TrafagSalesExporter.Services;
public class ManagementCockpitService : IManagementCockpitService
{
private readonly IDbContextFactory<AppDbContext> _dbFactory;
public ManagementCockpitService(IDbContextFactory<AppDbContext> dbFactory)
{
_dbFactory = dbFactory;
}
public async Task<List<ManagementCockpitFileOption>> GetAvailableFilesAsync()
{
using var db = await _dbFactory.CreateDbContextAsync();
var settings = await db.ExportSettings.FirstOrDefaultAsync() ?? new ExportSettings();
var exportLogs = await db.ExportLogs
.Where(x => x.Status == "OK" && !string.IsNullOrWhiteSpace(x.FilePath))
.OrderByDescending(x => x.Timestamp)
.Take(200)
.ToListAsync();
var files = new Dictionary<string, ManagementCockpitFileOption>(StringComparer.OrdinalIgnoreCase);
foreach (var log in exportLogs)
{
if (!File.Exists(log.FilePath))
continue;
files[log.FilePath] = new ManagementCockpitFileOption
{
Path = log.FilePath,
DisplayName = $"{log.Land} | {log.TSC} | {Path.GetFileName(log.FilePath)}",
LastModified = File.GetLastWriteTime(log.FilePath)
};
}
foreach (var directory in GetCandidateDirectories(settings))
{
if (!Directory.Exists(directory))
continue;
foreach (var file in Directory.EnumerateFiles(directory, "*.xlsx", SearchOption.TopDirectoryOnly))
{
if (files.ContainsKey(file))
continue;
var fileName = Path.GetFileName(file);
files[file] = new ManagementCockpitFileOption
{
Path = file,
DisplayName = fileName,
LastModified = File.GetLastWriteTime(file)
};
}
}
return files.Values
.OrderByDescending(x => x.LastModified)
.ThenBy(x => x.DisplayName, StringComparer.OrdinalIgnoreCase)
.ToList();
}
public Task<ManagementCockpitResult> AnalyzeAsync(string filePath)
{
if (string.IsNullOrWhiteSpace(filePath) || !File.Exists(filePath))
throw new InvalidOperationException("Die ausgewählte Excel-Datei wurde nicht gefunden.");
using var workbook = new XLWorkbook(filePath);
var worksheet = workbook.Worksheets.First();
var usedRange = worksheet.RangeUsed() ?? throw new InvalidOperationException("Die Excel-Datei enthält keine Daten.");
var headerRow = usedRange.FirstRow();
var headers = headerRow.Cells()
.Select((cell, index) => new { Index = index + 1, Header = NormalizeHeader(cell.GetString()) })
.Where(x => !string.IsNullOrWhiteSpace(x.Header))
.ToDictionary(x => x.Header, x => x.Index, StringComparer.OrdinalIgnoreCase);
var rows = new List<CockpitRow>();
foreach (var row in usedRange.RowsUsed().Skip(1))
{
if (row.CellsUsed().All(c => string.IsNullOrWhiteSpace(c.GetString())))
continue;
rows.Add(ReadRow(row, headers));
}
if (rows.Count == 0)
throw new InvalidOperationException("Die Excel-Datei enthält keine auswertbaren Datenzeilen.");
var result = new ManagementCockpitResult
{
FilePath = filePath,
Summary = BuildSummary(rows),
Findings = BuildFindings(rows),
TopCustomers = BuildTopItems(rows, x => x.CustomerName, x => x.SalesValueTotal),
TopProductGroups = BuildTopItems(rows, x => x.ProductGroup, x => x.SalesValueTotal),
TopSalesEmployees = BuildTopItems(rows, x => x.SalesResponsibleEmployee, x => x.SalesValueTotal),
DataQualityCounts = BuildDataQualityCounts(rows)
};
return Task.FromResult(result);
}
private static IEnumerable<string> GetCandidateDirectories(ExportSettings settings)
{
yield return Path.Combine(AppContext.BaseDirectory, "output");
if (!string.IsNullOrWhiteSpace(settings.LocalSiteExportFolder))
yield return settings.LocalSiteExportFolder.Trim();
if (!string.IsNullOrWhiteSpace(settings.LocalConsolidatedExportFolder))
yield return settings.LocalConsolidatedExportFolder.Trim();
}
private static CockpitRow ReadRow(IXLRangeRow row, IReadOnlyDictionary<string, int> headers)
{
var quantity = GetDecimal(row, headers, "quantity");
var standardCost = GetDecimal(row, headers, "standardcost");
var salesValue = GetDecimal(row, headers, "salespricevalue");
var estimatedCostTotal = quantity > 0 ? quantity * standardCost : standardCost;
return new CockpitRow
{
ExtractionDate = GetDate(row, headers, "extractiondate"),
Tsc = GetText(row, headers, "tsc"),
InvoiceNumber = GetText(row, headers, "invoicenumber"),
PositionOnInvoice = GetText(row, headers, "positiononinvoice"),
Material = GetText(row, headers, "material"),
Name = GetText(row, headers, "name"),
ProductGroup = GetText(row, headers, "productgroup"),
Quantity = quantity,
SupplierNumber = GetText(row, headers, "suppliernumber"),
SupplierName = GetText(row, headers, "suppliername"),
SupplierCountry = GetText(row, headers, "suppliercountry"),
CustomerNumber = GetText(row, headers, "customernumber"),
CustomerName = GetText(row, headers, "customername"),
CustomerCountry = GetText(row, headers, "customercountry"),
CustomerIndustry = GetText(row, headers, "customerindustry"),
StandardCost = standardCost,
SalesValueTotal = salesValue,
Incoterms2020 = GetText(row, headers, "incoterms2020"),
SalesResponsibleEmployee = GetText(row, headers, "salesresponsibleemployee"),
InvoiceDate = GetDate(row, headers, "invoicedate"),
OrderDate = GetDate(row, headers, "orderdate"),
Land = GetText(row, headers, "land"),
EstimatedCostTotal = estimatedCostTotal,
EstimatedMarginTotal = salesValue - estimatedCostTotal
};
}
private static ManagementCockpitSummary BuildSummary(List<CockpitRow> rows)
{
var salesTotal = rows.Sum(x => x.SalesValueTotal);
var costTotal = rows.Sum(x => x.EstimatedCostTotal);
var marginTotal = rows.Sum(x => x.EstimatedMarginTotal);
var serviceRows = rows.Where(x =>
x.ProductGroup.Contains("service", StringComparison.OrdinalIgnoreCase) ||
x.Name.Contains("port", StringComparison.OrdinalIgnoreCase) ||
x.Name.Contains("zeugnis", StringComparison.OrdinalIgnoreCase)).ToList();
return new ManagementCockpitSummary
{
Land = rows.Select(x => x.Land).FirstOrDefault(x => !string.IsNullOrWhiteSpace(x)) ?? "-",
Tsc = rows.Select(x => x.Tsc).FirstOrDefault(x => !string.IsNullOrWhiteSpace(x)) ?? "-",
ExtractionDate = rows.Select(x => x.ExtractionDate).FirstOrDefault(x => x.HasValue),
RowCount = rows.Count,
InvoiceCount = rows.Select(x => x.InvoiceNumber).Where(x => !string.IsNullOrWhiteSpace(x)).Distinct(StringComparer.OrdinalIgnoreCase).Count(),
CustomerCount = rows.Select(x => x.CustomerName).Where(x => !string.IsNullOrWhiteSpace(x)).Distinct(StringComparer.OrdinalIgnoreCase).Count(),
SalesValueTotal = salesTotal,
EstimatedCostTotal = costTotal,
EstimatedMarginTotal = marginTotal,
EstimatedMarginPercent = salesTotal == 0 ? 0 : marginTotal / salesTotal * 100m,
ServiceSharePercent = salesTotal == 0 ? 0 : serviceRows.Sum(x => x.SalesValueTotal) / salesTotal * 100m,
MissingOrderDatePercent = rows.Count == 0 ? 0 : rows.Count(x => !x.OrderDate.HasValue) * 100m / rows.Count,
MissingSupplierPercent = rows.Count == 0 ? 0 : rows.Count(x => string.IsNullOrWhiteSpace(x.SupplierName) && string.IsNullOrWhiteSpace(x.SupplierNumber)) * 100m / rows.Count
};
}
private static List<ManagementCockpitFinding> BuildFindings(List<CockpitRow> rows)
{
var findings = new List<ManagementCockpitFinding>();
var salesTotal = rows.Sum(x => x.SalesValueTotal);
var topCustomer = rows
.Where(x => !string.IsNullOrWhiteSpace(x.CustomerName))
.GroupBy(x => x.CustomerName, StringComparer.OrdinalIgnoreCase)
.Select(g => new { Customer = g.Key, Sales = g.Sum(x => x.SalesValueTotal) })
.OrderByDescending(x => x.Sales)
.FirstOrDefault();
if (topCustomer is not null && salesTotal > 0)
{
var share = topCustomer.Sales / salesTotal * 100m;
findings.Add(new ManagementCockpitFinding
{
Severity = share >= 50 ? "Warning" : "Info",
Title = "Kundenkonzentration",
Detail = $"{topCustomer.Customer} trägt {share:F1}% des Umsatzes."
});
}
var zeroValueRows = rows.Where(x => x.SalesValueTotal == 0 || x.StandardCost == 0).ToList();
if (zeroValueRows.Count > 0)
{
findings.Add(new ManagementCockpitFinding
{
Severity = zeroValueRows.Count >= Math.Max(3, rows.Count / 10) ? "Warning" : "Info",
Title = "Nullwerte in Kosten oder Umsatz",
Detail = $"{zeroValueRows.Count} Zeilen haben 0 in Umsatz oder Standard Cost und sollten fachlich geprüft werden."
});
}
var missingOrderDates = rows.Count(x => !x.OrderDate.HasValue);
if (missingOrderDates > 0)
{
findings.Add(new ManagementCockpitFinding
{
Severity = missingOrderDates > rows.Count / 2 ? "Warning" : "Info",
Title = "Fehlende Durchlaufzeit",
Detail = $"{missingOrderDates} von {rows.Count} Zeilen haben kein Order Date. Time-to-Invoice ist nur eingeschränkt beurteilbar."
});
}
var orderLeadTimes = rows
.Where(x => x.OrderDate.HasValue && x.InvoiceDate.HasValue)
.Select(x => (x.InvoiceDate!.Value - x.OrderDate!.Value).TotalDays)
.Where(x => x >= 0)
.ToList();
if (orderLeadTimes.Count > 0)
{
findings.Add(new ManagementCockpitFinding
{
Severity = orderLeadTimes.Average() > 120 ? "Warning" : "Info",
Title = "Durchschnittliche Fakturierungszeit",
Detail = $"Zwischen Order Date und Invoice Date liegen im Schnitt {orderLeadTimes.Average():F0} Tage."
});
}
var missingIndustries = rows.Count(x => string.IsNullOrWhiteSpace(x.CustomerIndustry));
if (missingIndustries > 0)
{
findings.Add(new ManagementCockpitFinding
{
Severity = missingIndustries > rows.Count / 2 ? "Warning" : "Info",
Title = "Stammdatenlücke Customer Industry",
Detail = $"{missingIndustries} Zeilen haben keine Customer Industry. Marktsegment-Analysen sind dadurch unvollständig."
});
}
var missingIncoterms = rows.Count(x => string.IsNullOrWhiteSpace(x.Incoterms2020));
if (missingIncoterms > 0)
{
findings.Add(new ManagementCockpitFinding
{
Severity = missingIncoterms > rows.Count / 2 ? "Info" : "Info",
Title = "Incoterms unvollständig",
Detail = $"{missingIncoterms} Zeilen haben keine Incoterms-Angabe."
});
}
if (findings.Count == 0)
{
findings.Add(new ManagementCockpitFinding
{
Severity = "Info",
Title = "Keine auffälligen Datenqualitätsprobleme",
Detail = "Die Datei ist für eine erste Standortbeurteilung konsistent genug."
});
}
return findings;
}
private static List<ManagementCockpitTopItem> BuildTopItems(
List<CockpitRow> rows,
Func<CockpitRow, string> keySelector,
Func<CockpitRow, decimal> valueSelector)
{
var total = rows.Sum(valueSelector);
return rows
.Select(x => new { Label = keySelector(x), Value = valueSelector(x) })
.Where(x => !string.IsNullOrWhiteSpace(x.Label))
.GroupBy(x => x.Label, StringComparer.OrdinalIgnoreCase)
.Select(g => new ManagementCockpitTopItem
{
Label = g.Key,
Value = g.Sum(x => x.Value),
SharePercent = total == 0 ? 0 : g.Sum(x => x.Value) / total * 100m
})
.OrderByDescending(x => x.Value)
.Take(5)
.ToList();
}
private static Dictionary<string, int> BuildDataQualityCounts(List<CockpitRow> rows)
{
return new Dictionary<string, int>(StringComparer.OrdinalIgnoreCase)
{
["Fehlende Supplier"] = rows.Count(x => string.IsNullOrWhiteSpace(x.SupplierName) && string.IsNullOrWhiteSpace(x.SupplierNumber)),
["Fehlende Customer Industry"] = rows.Count(x => string.IsNullOrWhiteSpace(x.CustomerIndustry)),
["Fehlende Order Date"] = rows.Count(x => !x.OrderDate.HasValue),
["Fehlende Invoice Date"] = rows.Count(x => !x.InvoiceDate.HasValue),
["Null Umsatz/Kosten"] = rows.Count(x => x.SalesValueTotal == 0 || x.StandardCost == 0)
};
}
private static string NormalizeHeader(string value)
{
var chars = value
.ToLowerInvariant()
.Where(char.IsLetterOrDigit)
.ToArray();
return new string(chars);
}
private static string GetText(IXLRangeRow row, IReadOnlyDictionary<string, int> headers, string key)
=> headers.TryGetValue(key, out var index) ? row.Cell(index).GetString().Trim() : string.Empty;
private static decimal GetDecimal(IXLRangeRow row, IReadOnlyDictionary<string, int> headers, string key)
{
if (!headers.TryGetValue(key, out var index))
return 0m;
var text = row.Cell(index).GetFormattedString().Trim();
if (decimal.TryParse(text, out var direct))
return direct;
if (decimal.TryParse(text, System.Globalization.NumberStyles.Any, System.Globalization.CultureInfo.InvariantCulture, out var invariant))
return invariant;
if (decimal.TryParse(text, System.Globalization.NumberStyles.Any, System.Globalization.CultureInfo.GetCultureInfo("de-CH"), out var local))
return local;
return 0m;
}
private static DateTime? GetDate(IXLRangeRow row, IReadOnlyDictionary<string, int> headers, string key)
{
if (!headers.TryGetValue(key, out var index))
return null;
var cell = row.Cell(index);
if (cell.DataType == XLDataType.DateTime)
return cell.GetDateTime();
var text = cell.GetString().Trim();
if (string.IsNullOrWhiteSpace(text))
return null;
if (DateTime.TryParse(text, out var direct))
return direct;
if (DateTime.TryParse(text, System.Globalization.CultureInfo.InvariantCulture, System.Globalization.DateTimeStyles.AssumeLocal, out var invariant))
return invariant;
if (DateTime.TryParse(text, System.Globalization.CultureInfo.GetCultureInfo("de-CH"), System.Globalization.DateTimeStyles.AssumeLocal, out var local))
return local;
return null;
}
private class CockpitRow
{
public DateTime? ExtractionDate { get; set; }
public string Tsc { get; set; } = string.Empty;
public string InvoiceNumber { get; set; } = string.Empty;
public string PositionOnInvoice { get; set; } = string.Empty;
public string Material { get; set; } = string.Empty;
public string Name { get; set; } = string.Empty;
public string ProductGroup { get; set; } = string.Empty;
public decimal Quantity { get; set; }
public string SupplierNumber { get; set; } = string.Empty;
public string SupplierName { get; set; } = string.Empty;
public string SupplierCountry { get; set; } = string.Empty;
public string CustomerNumber { get; set; } = string.Empty;
public string CustomerName { get; set; } = string.Empty;
public string CustomerCountry { get; set; } = string.Empty;
public string CustomerIndustry { get; set; } = string.Empty;
public decimal StandardCost { get; set; }
public decimal SalesValueTotal { get; set; }
public string Incoterms2020 { get; set; } = string.Empty;
public string SalesResponsibleEmployee { get; set; } = string.Empty;
public DateTime? InvoiceDate { get; set; }
public DateTime? OrderDate { get; set; }
public string Land { get; set; } = string.Empty;
public decimal EstimatedCostTotal { get; set; }
public decimal EstimatedMarginTotal { get; set; }
}
}