feat(templates): add localized push templates and actions

Share template keys across email and push with independent editors and revisions. Render localized actions and preserve version-one delivery. Ref: IT-1627
2026-10-31 09:38:05 +02:00
parent d4ee8fc0c8
commit aba4173827
79 changed files with 3906 additions and 104 deletions
@@ -0,0 +1,42 @@
+using System.Text.RegularExpressions;
+
+namespace HrynCo.NotificationService.DAL.Abstract.Templates;
+
+public static partial class PushTemplateValidation
+{
+    public static void Validate(PushTemplateDefinition definition)
+    {
+        EmailTemplateValidation.ValidateIdentity("Push", definition.Key);
+        EmailTemplateValidation.ValidateVariables(definition.Variables);
+        var names = definition.Variables.Select(v => v.Name).ToHashSet(StringComparer.Ordinal);
+        foreach (var language in definition.Languages)
+            ValidateTranslation(language, names);
+        if (definition.Languages.Select(l => l.LanguageCode).Distinct(StringComparer.Ordinal).Count() != definition.Languages.Count)
+            throw new EmailTemplateWriteException("Language codes must be unique within a template.", false);
+    }
+
+    private static void ValidateTranslation(PushTemplateTranslation translation, HashSet<string> names)
+    {
+        if (string.IsNullOrWhiteSpace(translation.LanguageCode) || translation.LanguageCode.Length > 10)
+            throw new EmailTemplateWriteException("A valid language code is required.", false);
+        if (string.IsNullOrWhiteSpace(translation.Title) || string.IsNullOrWhiteSpace(translation.Body))
+            throw new EmailTemplateWriteException("Every populated push language needs both Title and Body.", false);
+        ValidatePlaceholders(translation.Title, names);
+        ValidatePlaceholders(translation.Body, names);
+        var actions = PushTemplateActionValidation.Parse(translation.ActionsJson);
+        foreach (var button in actions.Buttons) ValidatePlaceholders(button.Label, names);
+    }
+
+    private static void ValidatePlaceholders(string text, HashSet<string> names)
+    {
+        foreach (Match match in Placeholder().Matches(text))
+            if (!names.Contains(match.Groups[1].Value))
+                throw new EmailTemplateWriteException("Every placeholder must be declared in this channel's variables.", false);
+        var remainder = Placeholder().Replace(text, "");
+        if (remainder.Contains("{{", StringComparison.Ordinal) || remainder.Contains("}}", StringComparison.Ordinal))
+            throw new EmailTemplateWriteException("Use complete placeholders in the form {{VariableName}}.", false);
+    }
+
+    [GeneratedRegex(@"\{\{([^{}]+)\}\}")]
+    private static partial Regex Placeholder();
+}