Add PageContentService and PageContentSerializer (load/save the page content)
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using System.Text.Json;
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using BewerbungsSeite.Models.SiteContent;
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namespace BewerbungsSeite.Services;
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/// <summary>
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/// Wandelt den Seiteninhalt zwischen Objektmodell und UTF-8-JSON um, so wie er
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/// im Feld PageContent.Content abgelegt wird.
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/// </summary>
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public static class PageContentSerializer
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{
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public static readonly JsonSerializerOptions Options = new()
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{
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PropertyNamingPolicy = JsonNamingPolicy.CamelCase,
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PropertyNameCaseInsensitive = true,
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WriteIndented = false
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};
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public static byte[] Serialize(PageContent content) =>
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JsonSerializer.SerializeToUtf8Bytes(content, Options);
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/// <summary>
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/// Liest den Inhalt zurueck. Fehlende oder unbekannte Felder fuehren nicht zu
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/// einem Fehler: unbekannte werden ignoriert, fehlende erhalten ihren Initialwert.
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/// </summary>
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public static PageContent Deserialize(byte[]? content)
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{
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if (content is null || content.Length == 0)
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{
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return new PageContent();
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}
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var result = JsonSerializer.Deserialize<PageContent>(content, Options) ?? new PageContent();
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return Normalize(result);
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}
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/// <summary>
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/// Stellt sicher, dass kein Bereich null ist, auch wenn ein aelterer
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/// Datensatz ihn noch nicht kennt oder ihn ausdruecklich als null enthaelt.
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/// </summary>
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private static PageContent Normalize(PageContent content)
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{
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content.Hero ??= new HeroSection();
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content.Hero.TitleLines ??= new List<string>();
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content.Hero.PrimaryButton ??= new LinkItem();
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content.Hero.SecondaryButton ??= new LinkItem();
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content.Hero.SocialLinks ??= new List<LinkItem>();
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content.About ??= new AboutSection();
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content.About.Facts ??= new List<FactItem>();
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content.Skills ??= new SkillsSection();
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content.Skills.Items ??= new List<SkillItem>();
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content.Projects ??= new ProjectsSection();
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content.Projects.Items ??= new List<ProjectItem>();
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foreach (var project in content.Projects.Items)
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{
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project.Details ??= new List<DetailBlock>();
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project.Links ??= new List<LinkItem>();
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}
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content.Goals ??= new GoalsSection();
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content.Goals.Items ??= new List<GoalItem>();
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content.Experience ??= new ExperienceSection();
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content.Experience.Items ??= new List<ExperienceItem>();
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content.Documents ??= new DocumentsSection();
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content.Documents.Items ??= new List<DocumentItem>();
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content.Contact ??= new ContactSection();
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content.Contact.InfoBoxes ??= new List<ContactInfoItem>();
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return content;
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}
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}
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