set your activity country

src/Yavsc.Org/Controllers/Accounting/ManageController.cs

@@ -568,7 +568,17 @@ namespace Yavsc.Controllers
         {
             var user = GetCurrentUserAsync().Result;
             var uid = user.Id;
+            var postedCountryCode = model.ExerciseCountryCode;
             model.ExerciseCountryCode = NormalizeCountryCodeOrDefault(model.ExerciseCountryCode);
+
+            // Model binding validated the raw posted payload before entering
+            // the action. If country was empty, we fallback to "fr" above,
+            // so remove the stale min-length error attached to the empty value.
+            if (string.IsNullOrWhiteSpace(postedCountryCode))
+            {
+                ModelState.Remove(nameof(PerformerProfile.ExerciseCountryCode));
+            }
+
             try
             {
                 if (ModelState.IsValid)
@@ -636,7 +646,7 @@ namespace Yavsc.Controllers
             return View(model);
         }
 
-        private static string NormalizeCountryCodeOrDefault(string? code)
+        private static string NormalizeCountryCodeOrDefault(string code)
         {
             var normalized = PerformerCodeInputValidationCatalog.NormalizeCountryCode(code);
             if (string.IsNullOrWhiteSpace(normalized))
@@ -647,14 +657,17 @@ namespace Yavsc.Controllers
             return normalized;
         }
 
-        private void SetExerciseCountries(string? selectedCountryCode)
+        private void SetExerciseCountries(string selectedCountryCode)
         {
             var selected = NormalizeCountryCodeOrDefault(selectedCountryCode);
-            ViewBag.ExerciseCountries = new SelectList(
+            var countries = new SelectList(
                 PerformerCodeInputValidationCatalog.Countries,
                 nameof(Country.Code),
                 nameof(Country.DisplayName),
                 selected);
+            ViewBag.ExerciseCountries = countries;
+            ViewBag.Countries = countries;
+            ViewBag.CountryCodeValidationRules = PerformerCodeInputValidationCatalog.Rules;
         }
 
         [HttpPost]

src/Yavsc.Org/Migrations/20260831040104_AddPerformerCountryValidation.cs

@@ -0,0 +1,97 @@
+using Microsoft.EntityFrameworkCore.Migrations;
+using Npgsql.EntityFrameworkCore.PostgreSQL.Metadata;
+
+#nullable disable
+
+#pragma warning disable CA1814 // Prefer jagged arrays over multidimensional
+
+namespace Yavsc.Migrations
+{
+    /// <inheritdoc />
+    public partial class AddPerformerCountryValidation : Migration
+    {
+        /// <inheritdoc />
+        protected override void Up(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.AddColumn<string>(
+                name: "ExerciseCountryCode",
+                table: "Performers",
+                type: "character varying(2)",
+                maxLength: 2,
+                nullable: false,
+                defaultValue: "fr");
+
+            migrationBuilder.CreateTable(
+                name: "Countries",
+                columns: table => new
+                {
+                    Code = table.Column<string>(type: "character varying(2)", maxLength: 2, nullable: false),
+                    DisplayName = table.Column<string>(type: "character varying(64)", maxLength: 64, nullable: false)
+                },
+                constraints: table =>
+                {
+                    table.PrimaryKey("PK_Countries", x => x.Code);
+                });
+
+            migrationBuilder.CreateTable(
+                name: "PerformerCodeInputValidations",
+                columns: table => new
+                {
+                    Id = table.Column<long>(type: "bigint", nullable: false)
+                        .Annotation("Npgsql:ValueGenerationStrategy", NpgsqlValueGenerationStrategy.IdentityByDefaultColumn),
+                    CountryCode = table.Column<string>(type: "character varying(2)", maxLength: 2, nullable: false),
+                    RegularExpression = table.Column<string>(type: "character varying(256)", maxLength: 256, nullable: false),
+                    ErrorMessage = table.Column<string>(type: "character varying(128)", maxLength: 128, nullable: false)
+                },
+                constraints: table =>
+                {
+                    table.PrimaryKey("PK_PerformerCodeInputValidations", x => x.Id);
+                    table.ForeignKey(
+                        name: "FK_PerformerCodeInputValidations_Countries_CountryCode",
+                        column: x => x.CountryCode,
+                        principalTable: "Countries",
+                        principalColumn: "Code",
+                        onDelete: ReferentialAction.Restrict);
+                });
+
+            migrationBuilder.InsertData(
+                table: "Countries",
+                columns: new[] { "Code", "DisplayName" },
+                values: new object[,]
+                {
+                    { "en", "England" },
+                    { "fr", "France" },
+                    { "pt", "Portugal" }
+                });
+
+            migrationBuilder.InsertData(
+                table: "PerformerCodeInputValidations",
+                columns: new[] { "Id", "CountryCode", "ErrorMessage", "RegularExpression" },
+                values: new object[,]
+                {
+                    { 1L, "fr", "Le code FR doit contenir entre 9 et 14 chiffres.", "^[0-9]{9,14}$" },
+                    { 2L, "en", "Le code EN doit contenir entre 8 et 14 caracteres alphanumeriques.", "^[A-Za-z0-9]{8,14}$" },
+                    { 3L, "pt", "Le code PT doit contenir exactement 9 chiffres.", "^[0-9]{9}$" }
+                });
+
+            migrationBuilder.CreateIndex(
+                name: "IX_PerformerCodeInputValidations_CountryCode",
+                table: "PerformerCodeInputValidations",
+                column: "CountryCode");
+        }
+
+        /// <inheritdoc />
+        protected override void Down(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.DropTable(
+                name: "PerformerCodeInputValidations");
+
+            migrationBuilder.DropTable(
+                name: "Countries");
+
+            migrationBuilder.DropColumn(
+                name: "ExerciseCountryCode",
+                table: "Performers");
+        }
+    }
+}

src/Yavsc.Org/Migrations/ApplicationDbContextModelSnapshot.cs

@@ -1762,19 +1762,6 @@ namespace Yavsc.Migrations
                     b.ToTable("Color");
                 });
 
-            modelBuilder.Entity("Yavsc.Models.Forms.Form", b =>
-                {
-                    b.Property<string>("Id")
-                        .HasColumnType("text");
-
-                    b.Property<string>("Summary")
-                        .HasColumnType("text");
-
-                    b.HasKey("Id");
-
-                    b.ToTable("Form");
-                });
-
             modelBuilder.Entity("Yavsc.Models.Haircut.BrusherProfile", b =>
                 {
                     b.Property<string>("UserId")
@@ -2997,6 +2984,92 @@ namespace Yavsc.Migrations
                     b.ToTable("CommandForm");
                 });
 
+            modelBuilder.Entity("Yavsc.Models.Workflow.Country", b =>
+                {
+                    b.Property<string>("Code")
+                        .HasMaxLength(2)
+                        .HasColumnType("character varying(2)");
+
+                    b.Property<string>("DisplayName")
+                        .IsRequired()
+                        .HasMaxLength(64)
+                        .HasColumnType("character varying(64)");
+
+                    b.HasKey("Code");
+
+                    b.ToTable("Countries");
+
+                    b.HasData(
+                        new
+                        {
+                            Code = "fr",
+                            DisplayName = "France"
+                        },
+                        new
+                        {
+                            Code = "en",
+                            DisplayName = "England"
+                        },
+                        new
+                        {
+                            Code = "pt",
+                            DisplayName = "Portugal"
+                        });
+                });
+
+            modelBuilder.Entity("Yavsc.Models.Workflow.PerformerCodeInputValidation", b =>
+                {
+                    b.Property<long>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("bigint");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<long>("Id"));
+
+                    b.Property<string>("CountryCode")
+                        .IsRequired()
+                        .HasMaxLength(2)
+                        .HasColumnType("character varying(2)");
+
+                    b.Property<string>("ErrorMessage")
+                        .IsRequired()
+                        .HasMaxLength(128)
+                        .HasColumnType("character varying(128)");
+
+                    b.Property<string>("RegularExpression")
+                        .IsRequired()
+                        .HasMaxLength(256)
+                        .HasColumnType("character varying(256)");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("CountryCode");
+
+                    b.ToTable("PerformerCodeInputValidations");
+
+                    b.HasData(
+                        new
+                        {
+                            Id = 1L,
+                            CountryCode = "fr",
+                            ErrorMessage = "Le code FR doit contenir entre 9 et 14 chiffres.",
+                            RegularExpression = "^[0-9]{9,14}$"
+                        },
+                        new
+                        {
+                            Id = 2L,
+                            CountryCode = "en",
+                            ErrorMessage = "Le code EN doit contenir entre 8 et 14 caracteres alphanumeriques.",
+                            RegularExpression = "^[A-Za-z0-9]{8,14}$"
+                        },
+                        new
+                        {
+                            Id = 3L,
+                            CountryCode = "pt",
+                            ErrorMessage = "Le code PT doit contenir exactement 9 chiffres.",
+                            RegularExpression = "^[0-9]{9}$"
+                        });
+                });
+
             modelBuilder.Entity("Yavsc.Models.Workflow.PerformerProfile", b =>
                 {
                     b.Property<string>("PerformerId")
@@ -3011,6 +3084,11 @@ namespace Yavsc.Migrations
                     b.Property<bool>("Active")
                         .HasColumnType("boolean");
 
+                    b.Property<string>("ExerciseCountryCode")
+                        .IsRequired()
+                        .HasMaxLength(2)
+                        .HasColumnType("character varying(2)");
+
                     b.Property<int?>("MaxDailyCost")
                         .HasColumnType("integer");
 
@@ -4321,6 +4399,17 @@ namespace Yavsc.Migrations
                     b.Navigation("Context");
                 });
 
+            modelBuilder.Entity("Yavsc.Models.Workflow.PerformerCodeInputValidation", b =>
+                {
+                    b.HasOne("Yavsc.Models.Workflow.Country", "Country")
+                        .WithMany()
+                        .HasForeignKey("CountryCode")
+                        .OnDelete(DeleteBehavior.Restrict)
+                        .IsRequired();
+
+                    b.Navigation("Country");
+                });
+
             modelBuilder.Entity("Yavsc.Models.Workflow.PerformerProfile", b =>
                 {
                     b.HasOne("Yavsc.Models.Relationship.Location", "OrganizationAddress")

src/Yavsc.Org/Views/Manage/SetActivity.cshtml

@@ -1,4 +1,5 @@
 @model PerformerProfile
+@using System.Text.Json
 @{ ViewBag.Title = "Your performer profile"; }
 @section header {
 <style>
@@ -71,7 +72,7 @@
 
         <label asp-for="ExerciseCountryCode" class="col-md-2 control-label">Pays d'exercice</label>
         <div class="col-md-10">
-            <select asp-for="ExerciseCountryCode" asp-items="ViewBag.ExerciseCountries" class="form-control"></select>
+            <select asp-for="ExerciseCountryCode" asp-items="ViewBag.Countries" class="form-control"></select>
 
             <span asp-validation-for="ExerciseCountryCode" class="text-danger"></span>
         </div>
@@ -125,6 +126,59 @@
         addrValidationId: 'AddressError',
         formValidId: 'ValidationSummary',
         locComboId: 'LocationCombo'})
+
+    const rawCountryRules = @Html.Raw(JsonSerializer.Serialize(ViewBag.CountryCodeValidationRules));
+    const countryRules = {};
+    (rawCountryRules || []).forEach(function (rule) {
+        if (!rule || !rule.CountryCode || !rule.RegularExpression) {
+            return;
+        }
+
+        countryRules[String(rule.CountryCode).toLowerCase()] = {
+            regex: String(rule.RegularExpression),
+            message: rule.ErrorMessage
+                ? String(rule.ErrorMessage)
+                : "Code entreprise invalide pour le pays selectionne."
+        };
+    });
+
+    const countryInput = $("#ExerciseCountryCode");
+    const sirenInput = $("#SIREN");
+    let sirenValidationMessage = "Code entreprise invalide pour le pays selectionne.";
+
+    $.validator.addMethod("sirenByCountry", function (value, element) {
+        if (!value) {
+            return true;
+        }
+
+        const selectedCountry = (countryInput.val() || "").toString().toLowerCase();
+        const selectedRule = countryRules[selectedCountry];
+        if (!selectedRule) {
+            return true;
+        }
+
+        const regex = new RegExp(selectedRule.regex);
+        const isValid = regex.test(value.trim());
+        if (!isValid) {
+            sirenValidationMessage = selectedRule.message;
+        }
+
+        return isValid;
+    }, function () {
+        return sirenValidationMessage;
+    });
+
+    if (sirenInput.length > 0) {
+        sirenInput.rules("add", {
+            sirenByCountry: true
+        });
+    }
+
+    countryInput.on("change", function () {
+        if (sirenInput.val()) {
+            sirenInput.valid();
+        }
+    });
     })
 </script>
 }