[#30] Documents: Add WineQualityStatistics

2024-03-28 12:27:48 +01:00
parent 57662534f3
commit 26a9902a13
7 changed files with 330 additions and 15 deletions
--- a/Elwig/Models/Dtos/WineQualityStatisticsData.cs
+++ b/Elwig/Models/Dtos/WineQualityStatisticsData.cs
@ -0,0 +1,105 @@
+using Elwig.Models.Entities;
+using Microsoft.EntityFrameworkCore;
+using System;
+using System.Collections.Generic;
+using System.Data.Entity.Core.Common.CommandTrees.ExpressionBuilder;
+using System.Linq;
+using System.Threading.Tasks;
+using System.Windows;
+
+namespace Elwig.Models.Dtos {
+    public class WineQualityStatisticsData {
+
+        public record struct QualityRow(string? Variety, string? Attribute, string? Cultivation, string? Type, string QualId, int Oe, int Weight);
+        public record struct QualitySection(string Name, string? Type, Dictionary<string, (int Oe, int Weight)[]> Data);
+
+        public QualitySection[] Sections;
+
+        public WineQualityStatisticsData(QualitySection[] sections) {
+            Sections = sections;
+        }
+
+        private static QualitySection[] GetQualitySections(IEnumerable<QualityRow> rows) {
+            var data = new List<QualitySection>();
+            var currentQual = new Dictionary<int, int>();
+            var current = new Dictionary<string, (int, int)[]>();
+            string? lastSection = null;
+            string? lastType = null;
+            string? lastQual = null;
+            foreach (var row in rows) {
+                var sec = $"{row.Variety ?? (row.Type == "R" ? "Rotweinsorten" : row.Type == "W" ? "Weißweinsorten" : "Gesamt")}" +
+                    $"{(row.Attribute != null ? " / " : "")}{row.Attribute}" +
+                    $"{(row.Cultivation != null ? " / " : "")}{row.Cultivation}";
+                if (lastQual != null && lastQual != row.QualId) {
+                    current[lastQual] = currentQual.Select(kv => (kv.Key, kv.Value)).ToArray();
+                    currentQual.Clear();
+                }
+                if (lastSection != null && lastSection != sec) {
+                    if (!current.ContainsKey(lastQual!)) {
+                        current[lastQual!] = currentQual.Select(kv => (kv.Key, kv.Value)).ToArray();
+                        currentQual.Clear();
+                    }
+                    data.Add(new(lastSection, lastType, current));
+                    current = [];
+                    currentQual.Clear();
+                }
+                currentQual[row.Oe] = row.Weight;
+                lastSection = sec;
+                lastType = row.Type;
+                lastQual = row.QualId;
+            }
+            if (lastQual != null) {
+                current[lastQual] = currentQual.Select(kv => (kv.Key, kv.Value)).ToArray();
+                currentQual.Clear();
+            }
+            if (lastSection != null) {
+                data.Add(new(lastSection, lastType, current));
+                current = [];
+                currentQual.Clear();
+            }
+            return [.. data];
+        }
+
+        public static async Task<WineQualityStatisticsData> FromQuery(IQueryable<DeliveryPart> query) {
+            var rows = (await query
+                .GroupBy(p => new {
+                    p.Variety.Type,
+                    Variety = p.Variety.Name,
+                    Attribute = p.Attribute!.Name,
+                    Cultivation = p.Cultivation!.Name,
+                    p.QualId,
+                    Oe = (int)Math.Round(p.Kmw * (4.54 + 0.022 * p.Kmw), 0),
+                }, (k, g) => new { Key = k, Weight = g.Sum(p => p.Weight) })
+                .OrderBy(g => g.Key.Variety)
+                .ThenBy(g => g.Key.Attribute)
+                .ThenBy(g => g.Key.Cultivation)
+                .ThenBy(g => g.Key.QualId)
+                .ThenBy(g => g.Key.Oe)
+                .ToListAsync())
+                .Select(r => new QualityRow(r.Key.Variety, r.Key.Attribute, r.Key.Cultivation, r.Key.Type, r.Key.QualId, r.Key.Oe, r.Weight))
+                .ToList();
+
+            var data = GetQualitySections(rows);
+            if (data.Length <= 1)
+                return new(data);
+
+            var typeRows = rows
+                .GroupBy(s => new { s.Type, s.QualId, s.Oe }, (k, g) => new QualityRow(null, null, null, k.Type, k.QualId, k.Oe, g.Sum(p => p.Weight)))
+                .OrderBy(g => g.Type)
+                .ThenBy(g => g.QualId)
+                .ThenBy(g => g.Oe)
+                .ToList();
+            var typeData = GetQualitySections(typeRows);
+            if (typeData.Length <= 1)
+                return new([.. typeData, .. data]);
+
+            var totalRows = rows
+                .GroupBy(s => new { s.QualId, s.Oe }, (k, g) => new QualityRow(null, null, null, null, k.QualId, k.Oe, g.Sum(p => p.Weight)))
+                .OrderBy(g => g.QualId)
+                .ThenBy(g => g.Oe)
+                .ToList();
+            var totalData = GetQualitySections(totalRows);
+            return new([.. totalData, .. typeData, .. data]);
+        }
+    }
+}