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v3.0.2 improve perf on AnnualView, improve render on WeekView. imrove sample wasm
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‎Blazor-Calendar.sln‎

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Microsoft Visual Studio Solution File, Format Version 12.00
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# Visual Studio Version 17
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VisualStudioVersion = 17.0.31710.8
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# Visual Studio Version 18
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VisualStudioVersion = 18.3.11408.92 d18.3
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MinimumVisualStudioVersion = 10.0.40219.1
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Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "BlazorCalendar", "BlazorCalendar\BlazorCalendar.csproj", "{D018189F-E4BE-4693-9BF0-FE8325CB0899}"
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EndProject
@@ -11,6 +11,10 @@ Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "BlazorServer", "samples\Bla
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EndProject
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Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "BlazorWebAssembly", "samples\BlazorWebAssembly\BlazorWebAssembly.csproj", "{5D3171BB-C17D-462D-AECE-3C8DEAC85441}"
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EndProject
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Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "Benchmarks", "Benchmarks", "{C9CF3B12-5BCB-406A-B2B6-A6701652DACA}"
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EndProject
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Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "BlazorCalendar.Benchmarks", "BlazorCalendar.Benchmarks\BlazorCalendar.Benchmarks.csproj", "{33B127B9-2341-493B-A0FD-05EB7E1DA664}"
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EndProject
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Global
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GlobalSection(SolutionConfigurationPlatforms) = preSolution
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Debug|Any CPU = Debug|Any CPU
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{5D3171BB-C17D-462D-AECE-3C8DEAC85441}.Debug|Any CPU.Build.0 = Debug|Any CPU
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{5D3171BB-C17D-462D-AECE-3C8DEAC85441}.Release|Any CPU.ActiveCfg = Release|Any CPU
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{5D3171BB-C17D-462D-AECE-3C8DEAC85441}.Release|Any CPU.Build.0 = Release|Any CPU
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{33B127B9-2341-493B-A0FD-05EB7E1DA664}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
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{33B127B9-2341-493B-A0FD-05EB7E1DA664}.Debug|Any CPU.Build.0 = Debug|Any CPU
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{33B127B9-2341-493B-A0FD-05EB7E1DA664}.Release|Any CPU.ActiveCfg = Release|Any CPU
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{33B127B9-2341-493B-A0FD-05EB7E1DA664}.Release|Any CPU.Build.0 = Release|Any CPU
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EndGlobalSection
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GlobalSection(SolutionProperties) = preSolution
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HideSolutionNode = FALSE
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EndGlobalSection
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GlobalSection(NestedProjects) = preSolution
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{C61DD137-FEBF-4644-8098-EC4263AF3967} = {9A175C09-D84D-4734-9E6E-00C89C09AA2A}
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{5D3171BB-C17D-462D-AECE-3C8DEAC85441} = {9A175C09-D84D-4734-9E6E-00C89C09AA2A}
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{33B127B9-2341-493B-A0FD-05EB7E1DA664} = {C9CF3B12-5BCB-406A-B2B6-A6701652DACA}
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EndGlobalSection
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GlobalSection(ExtensibilityGlobals) = postSolution
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SolutionGuid = {B68E7280-0A03-4BD1-B3B5-AB2A9B68195D}

‎BlazorCalendar.Benchmarks/Benchmarks.cs‎

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using System;
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using System.Collections.Generic;
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using BenchmarkDotNet.Attributes;
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using Microsoft.VSDiagnostics;
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namespace BlazorCalendar.Benchmarks;
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/// <summary>
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/// Benchmark comparing task lookup strategies for AnnualView calendar rendering.
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/// Original approach: O(days × tasks) - linear search for each day
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/// Dictionary approach: O(days + tasks) - pre-indexed lookup
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/// </summary>
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[MemoryDiagnoser]
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[CPUUsageDiagnoser]
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public class TaskLookupBenchmarks
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{
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private TaskData[] _tasks = null!;
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private DateTime _startDate;
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private Dictionary<DateTime, List<TaskData>>? _tasksByDate;
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// Simule 12 mois × 31 jours = 372 cellules (vue annuelle)
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private const int DaysCount = 372;
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[Params(10, 100, 500, 1000)]
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public int TaskCount { get; set; }
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[GlobalSetup]
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public void Setup()
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{
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_startDate = new DateTime(2025, 1, 1);
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var random = new Random(42); // Seed fixe pour reproductibilité
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_tasks = new TaskData[TaskCount];
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for (int i = 0; i < TaskCount; i++)
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{
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var startOffset = random.Next(0, 365);
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var duration = random.Next(1, 8); // Tâches de 1 à 7 jours
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_tasks[i] = new TaskData
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{
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ID = i,
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DateStart = _startDate.AddDays(startOffset),
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DateEnd = _startDate.AddDays(startOffset + duration),
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Code = $"TASK-{i}",
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Caption = $"Task {i}",
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Color = "#FF5733"
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};
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}
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// Pré-construction de l'index pour le benchmark Dictionary
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BuildTaskIndex();
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}
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private void BuildTaskIndex()
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{
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_tasksByDate = new Dictionary<DateTime, List<TaskData>>();
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foreach (var task in _tasks)
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{
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for (var date = task.DateStart.Date; date <= task.DateEnd.Date; date = date.AddDays(1))
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{
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if (!_tasksByDate.TryGetValue(date, out var list))
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{
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list = new List<TaskData>(4);
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_tasksByDate[date] = list;
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}
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list.Add(task);
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}
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}
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}
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/// <summary>
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/// Approche actuelle : pour chaque jour, parcourir TOUTES les tâches
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/// Complexité : O(jours × tâches)
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/// </summary>
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[Benchmark(Baseline = true)]
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public int OriginalLinearSearch()
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{
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int tasksFound = 0;
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string borderStyle;
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for (int dayIndex = 0; dayIndex < DaysCount; dayIndex++)
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{
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var currentDate = _startDate.AddDays(dayIndex);
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int tasksCounter = 0;
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int taskID = -1;
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borderStyle = string.Empty;
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// Simulation de la boucle originale
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for (int k = 0; k < _tasks.Length; k++)
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{
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var t = _tasks[k];
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if (t.DateStart.Date <= currentDate.Date && currentDate.Date <= t.DateEnd.Date)
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{
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taskID = t.ID;
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tasksCounter++;
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// Simulation du calcul de borderStyle
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if (t.DateStart.Date == currentDate.Date && t.DateEnd.Date != currentDate.Date)
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borderStyle = "border-top";
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else if (t.DateEnd.Date == currentDate.Date && t.DateStart.Date != currentDate.Date)
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borderStyle = "border-bottom";
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else if (t.DateEnd.Date == currentDate.Date && t.DateStart.Date == currentDate.Date)
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borderStyle = "border-top border-bottom";
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}
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}
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if (tasksCounter >= 1)
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tasksFound++;
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}
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return tasksFound;
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}
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/// <summary>
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/// Approche optimisée : pré-indexation + lookup O(1)
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/// Complexité : O(jours + tâches) pour la construction, O(1) par lookup
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/// </summary>
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[Benchmark]
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public int DictionaryLookup()
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{
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int tasksFound = 0;
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string borderStyle;
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for (int dayIndex = 0; dayIndex < DaysCount; dayIndex++)
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{
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var currentDate = _startDate.AddDays(dayIndex);
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int tasksCounter = 0;
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int taskID = -1;
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borderStyle = string.Empty;
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// Lookup O(1)
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if (_tasksByDate!.TryGetValue(currentDate.Date, out var tasksForDay))
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{
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tasksCounter = tasksForDay.Count;
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foreach (var t in tasksForDay)
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{
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taskID = t.ID;
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// Simulation du calcul de borderStyle
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if (t.DateStart.Date == currentDate.Date && t.DateEnd.Date != currentDate.Date)
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borderStyle = "border-top";
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else if (t.DateEnd.Date == currentDate.Date && t.DateStart.Date != currentDate.Date)
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borderStyle = "border-bottom";
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else if (t.DateEnd.Date == currentDate.Date && t.DateStart.Date == currentDate.Date)
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borderStyle = "border-top border-bottom";
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}
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}
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if (tasksCounter >= 1)
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tasksFound++;
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}
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return tasksFound;
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}
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/// <summary>
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/// Benchmark incluant la construction de l'index (cas réaliste lors d'un changement de TasksList)
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/// </summary>
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[Benchmark]
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public int DictionaryWithIndexBuild()
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{
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// Reconstruction de l'index (simule OnParametersSet)
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var tasksByDate = new Dictionary<DateTime, List<TaskData>>();
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foreach (var task in _tasks)
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{
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for (var date = task.DateStart.Date; date <= task.DateEnd.Date; date = date.AddDays(1))
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{
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if (!tasksByDate.TryGetValue(date, out var list))
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{
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list = new List<TaskData>(4);
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tasksByDate[date] = list;
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}
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list.Add(task);
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}
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}
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// Puis lookup
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int tasksFound = 0;
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string borderStyle;
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for (int dayIndex = 0; dayIndex < DaysCount; dayIndex++)
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{
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var currentDate = _startDate.AddDays(dayIndex);
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int tasksCounter = 0;
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int taskID = -1;
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borderStyle = string.Empty;
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if (tasksByDate.TryGetValue(currentDate.Date, out var tasksForDay))
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{
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tasksCounter = tasksForDay.Count;
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foreach (var t in tasksForDay)
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{
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taskID = t.ID;
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if (t.DateStart.Date == currentDate.Date && t.DateEnd.Date != currentDate.Date)
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borderStyle = "border-top";
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else if (t.DateEnd.Date == currentDate.Date && t.DateStart.Date != currentDate.Date)
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borderStyle = "border-bottom";
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else if (t.DateEnd.Date == currentDate.Date && t.DateStart.Date == currentDate.Date)
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borderStyle = "border-top border-bottom";
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}
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}
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if (tasksCounter >= 1)
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tasksFound++;
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}
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return tasksFound;
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}
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}
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/// <summary>
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/// Simplified task model for benchmarking (mirrors BlazorCalendar.Models.Tasks)
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/// </summary>
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public sealed class TaskData
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{
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public int ID { get; set; }
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public string Code { get; set; } = string.Empty;
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public string Caption { get; set; } = string.Empty;
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public string Color { get; set; } = string.Empty;
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public DateTime DateStart { get; set; }
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public DateTime DateEnd { get; set; }
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}

‎BlazorCalendar.Benchmarks/BlazorCalendar.Benchmarks.csproj‎

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<Project Sdk="Microsoft.NET.Sdk">
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<PropertyGroup>
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<TargetFrameworks>net10.0</TargetFrameworks>
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<OutputType>Exe</OutputType>
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</PropertyGroup>
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<ItemGroup>
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<PackageReference Include="BenchmarkDotNet" Version="0.15.2" />
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<PackageReference Include="Microsoft.VisualStudio.DiagnosticsHub.BenchmarkDotNetDiagnosers" Version="18.0.36313.1" />
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</ItemGroup>
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</Project>

‎BlazorCalendar.Benchmarks/Program.cs‎

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using BenchmarkDotNet.Running;
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namespace BlazorCalendar.Benchmarks
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{
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internal class Program
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{
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static void Main(string[] args)
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{
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var _ = BenchmarkRunner.Run(typeof(Program).Assembly);
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}
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}
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}

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