504 lines
23 KiB
C#
504 lines
23 KiB
C#
using System.Text.Json;
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using System.Text.Json.Serialization;
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using System.Text.RegularExpressions;
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namespace JobTrackerApi.Models;
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public static class StructuredCvProfileJson
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{
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private static readonly JsonSerializerOptions SerializerOptions = new(JsonSerializerDefaults.Web)
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{
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PropertyNameCaseInsensitive = true,
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DefaultIgnoreCondition = JsonIgnoreCondition.WhenWritingNull,
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};
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public static StructuredCvProfile Empty() => Normalize(new StructuredCvProfile());
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public static StructuredCvProfile Deserialize(string? json)
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{
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if (string.IsNullOrWhiteSpace(json)) return Empty();
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try
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{
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using var doc = JsonDocument.Parse(json);
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if (doc.RootElement.ValueKind == JsonValueKind.Array)
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{
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var sections = JsonSerializer.Deserialize<List<StructuredCvSection>>(json, SerializerOptions) ?? new List<StructuredCvSection>();
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return FromSections(sections);
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}
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if (doc.RootElement.ValueKind != JsonValueKind.Object) return Empty();
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var profile = JsonSerializer.Deserialize<StructuredCvProfile>(json, SerializerOptions) ?? new StructuredCvProfile();
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return Normalize(profile);
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}
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catch
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{
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return Empty();
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}
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}
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public static string Serialize(StructuredCvProfile? profile)
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{
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return JsonSerializer.Serialize(Normalize(profile), SerializerOptions);
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}
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public static StructuredCvProfile Merge(StructuredCvProfile? preferred, StructuredCvProfile? fallback)
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{
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var primary = Normalize(preferred);
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var secondary = Normalize(fallback);
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primary.Contact.FullName ??= secondary.Contact.FullName;
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primary.Contact.Headline ??= secondary.Contact.Headline;
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primary.Contact.Email ??= secondary.Contact.Email;
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primary.Contact.Phone ??= secondary.Contact.Phone;
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primary.Contact.Location ??= secondary.Contact.Location;
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primary.Contact.Website ??= secondary.Contact.Website;
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primary.Contact.LinkedIn ??= secondary.Contact.LinkedIn;
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primary.Summary = primary.Summary.Count == 0
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? secondary.Summary
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: primary.Summary.Concat(secondary.Summary).Distinct(StringComparer.OrdinalIgnoreCase).ToList();
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if (primary.Jobs.Count == 0) primary.Jobs = secondary.Jobs;
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if (primary.Education.Count == 0) primary.Education = secondary.Education;
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primary.Skills = primary.Skills.Count == 0
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? secondary.Skills
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: primary.Skills.Concat(secondary.Skills).Distinct(StringComparer.OrdinalIgnoreCase).ToList();
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primary.Languages = primary.Languages.Count == 0
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? secondary.Languages
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: primary.Languages
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.Concat(secondary.Languages)
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.GroupBy(language => language.Name ?? string.Empty, StringComparer.OrdinalIgnoreCase)
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.Select(group => group.First())
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.ToList();
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primary.Interests = primary.Interests.Count == 0
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? secondary.Interests
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: primary.Interests.Concat(secondary.Interests).Distinct(StringComparer.OrdinalIgnoreCase).ToList();
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if (primary.OtherSections.Count == 0) primary.OtherSections = secondary.OtherSections;
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if (primary.Sections.Count == 0) primary.Sections = secondary.Sections;
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return Normalize(primary);
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}
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public static StructuredCvProfile FromSections(IEnumerable<StructuredCvSection>? sections)
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{
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var normalizedSections = NormalizeSections(sections);
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var profile = new StructuredCvProfile
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{
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Sections = normalizedSections,
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};
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foreach (var section in normalizedSections)
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{
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switch (section.Name.Trim().ToLowerInvariant())
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{
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case "contact":
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ApplyContact(profile.Contact, section.Content);
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break;
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case "professional summary":
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case "summary":
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profile.Summary = SplitList(section.Content);
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break;
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case "skills":
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case "core skills":
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case "technical skills":
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profile.Skills = SplitList(section.Content);
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break;
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case "languages":
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profile.Languages = ParseLanguages(section.Content);
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break;
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case "interests":
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profile.Interests = SplitList(section.Content);
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break;
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case "work experience":
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case "experience":
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case "employment history":
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profile.Jobs = ParseJobs(section.Content);
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break;
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case "education":
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profile.Education = ParseEducation(section.Content);
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break;
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default:
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profile.OtherSections.Add(new StructuredCvOtherSection
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{
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Title = section.Name,
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Items = SplitList(section.Content),
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});
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break;
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}
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}
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return Normalize(profile);
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}
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public static StructuredCvProfile Normalize(StructuredCvProfile? profile)
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{
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profile ??= new StructuredCvProfile();
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profile.Version = string.IsNullOrWhiteSpace(profile.Version) ? "1" : profile.Version.Trim();
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profile.Contact ??= new StructuredCvContact();
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profile.Summary = CleanList(profile.Summary);
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profile.Jobs = (profile.Jobs ?? new List<StructuredCvJob>())
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.Select(NormalizeJob)
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.Where(job => !string.IsNullOrWhiteSpace(job.Title)
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|| !string.IsNullOrWhiteSpace(job.Company)
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|| job.Bullets.Count > 0)
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.ToList();
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profile.Education = (profile.Education ?? new List<StructuredCvEducation>())
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.Select(NormalizeEducation)
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.Where(education => !string.IsNullOrWhiteSpace(education.Qualification)
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|| !string.IsNullOrWhiteSpace(education.Institution)
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|| education.Details.Count > 0)
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.ToList();
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profile.Skills = CleanList(profile.Skills);
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profile.Languages = (profile.Languages ?? new List<StructuredCvLanguage>())
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.Select(NormalizeLanguage)
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.Where(language => !string.IsNullOrWhiteSpace(language.Name))
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.ToList();
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profile.Interests = CleanList(profile.Interests);
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profile.OtherSections = (profile.OtherSections ?? new List<StructuredCvOtherSection>())
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.Select(section => new StructuredCvOtherSection
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{
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Title = TrimOrNull(section?.Title),
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Items = CleanList(section?.Items),
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})
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.Where(section => !string.IsNullOrWhiteSpace(section.Title) || section.Items.Count > 0)
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.ToList();
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var normalizedSections = NormalizeSections(profile.Sections);
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profile.Sections = normalizedSections.Count > 0 ? normalizedSections : BuildSections(profile);
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return profile;
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}
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private static StructuredCvJob NormalizeJob(StructuredCvJob? job)
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{
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job ??= new StructuredCvJob();
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job.Title = TrimOrNull(job.Title);
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job.Company = TrimOrNull(job.Company);
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job.Location = TrimOrNull(job.Location);
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job.Start = TrimOrNull(job.Start);
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job.End = TrimOrNull(job.End);
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job.Bullets = CleanList(job.Bullets);
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job.Skills = CleanList(job.Skills);
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job.IsCurrent = job.IsCurrent || string.Equals(job.End, "present", StringComparison.OrdinalIgnoreCase) || string.Equals(job.End, "current", StringComparison.OrdinalIgnoreCase);
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return job;
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}
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private static StructuredCvEducation NormalizeEducation(StructuredCvEducation? education)
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{
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education ??= new StructuredCvEducation();
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education.Qualification = TrimOrNull(education.Qualification);
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education.Institution = TrimOrNull(education.Institution);
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education.Location = TrimOrNull(education.Location);
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education.Start = TrimOrNull(education.Start);
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education.End = TrimOrNull(education.End);
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education.Details = CleanList(education.Details);
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return education;
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}
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private static StructuredCvLanguage NormalizeLanguage(StructuredCvLanguage? language)
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{
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language ??= new StructuredCvLanguage();
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language.Name = TrimOrNull(language.Name);
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language.Level = TrimOrNull(language.Level);
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language.Notes = TrimOrNull(language.Notes);
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return language;
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}
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private static List<StructuredCvSection> NormalizeSections(IEnumerable<StructuredCvSection>? sections)
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{
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return (sections ?? Array.Empty<StructuredCvSection>())
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.Select(section => new StructuredCvSection
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{
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Name = string.IsNullOrWhiteSpace(section?.Name) ? "General" : section.Name.Trim(),
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Content = section?.Content?.Trim() ?? string.Empty,
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WordCount = section?.WordCount is > 0 ? section.WordCount : CountWords(section?.Content),
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})
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.Where(section => !string.IsNullOrWhiteSpace(section.Content))
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.ToList();
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}
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private static List<StructuredCvSection> BuildSections(StructuredCvProfile profile)
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{
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var sections = new List<StructuredCvSection>();
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var contactLines = new List<string>();
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AddIf(contactLines, profile.Contact.FullName);
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AddIf(contactLines, profile.Contact.Headline);
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AddIf(contactLines, profile.Contact.Email);
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AddIf(contactLines, profile.Contact.Phone);
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AddIf(contactLines, profile.Contact.Location);
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AddIf(contactLines, profile.Contact.Website);
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AddIf(contactLines, profile.Contact.LinkedIn);
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AddSectionIfAny(sections, "Contact", contactLines);
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AddSectionIfAny(sections, "Professional Summary", profile.Summary);
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if (profile.Jobs.Count > 0)
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{
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var lines = new List<string>();
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foreach (var job in profile.Jobs)
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{
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AddIf(lines, $"### {job.Title}".Trim());
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var meta = string.Join(" | ", new[] { job.Company, job.Location, FormatDateRange(job.Start, job.End, job.IsCurrent) }.Where(value => !string.IsNullOrWhiteSpace(value)));
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AddIf(lines, meta);
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lines.AddRange(job.Bullets.Select(bullet => $"- {bullet}"));
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if (job.Skills.Count > 0)
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{
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lines.Add($"Skills: {string.Join(", ", job.Skills)}");
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}
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if (lines.Count > 0 && !string.IsNullOrWhiteSpace(lines[^1])) lines.Add(string.Empty);
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}
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AddSectionIfAny(sections, "Work Experience", lines);
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}
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if (profile.Education.Count > 0)
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{
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var lines = new List<string>();
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foreach (var education in profile.Education)
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{
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AddIf(lines, $"### {education.Qualification}".Trim());
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var meta = string.Join(" | ", new[] { education.Institution, education.Location, FormatDateRange(education.Start, education.End, false) }.Where(value => !string.IsNullOrWhiteSpace(value)));
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AddIf(lines, meta);
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lines.AddRange(education.Details.Select(detail => $"- {detail}"));
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if (lines.Count > 0 && !string.IsNullOrWhiteSpace(lines[^1])) lines.Add(string.Empty);
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}
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AddSectionIfAny(sections, "Education", lines);
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}
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AddSectionIfAny(sections, "Skills", profile.Skills);
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if (profile.Languages.Count > 0)
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{
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AddSectionIfAny(sections, "Languages", profile.Languages.Select(language =>
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{
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var value = language.Name ?? string.Empty;
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if (!string.IsNullOrWhiteSpace(language.Level)) value += $": {language.Level}";
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if (!string.IsNullOrWhiteSpace(language.Notes)) value += $" ({language.Notes})";
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return value;
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}).ToList());
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}
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AddSectionIfAny(sections, "Interests", profile.Interests);
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foreach (var other in profile.OtherSections)
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{
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AddSectionIfAny(sections, other.Title ?? "Other", other.Items);
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}
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return NormalizeSections(sections);
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}
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private static void AddSectionIfAny(List<StructuredCvSection> sections, string name, IEnumerable<string>? lines)
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{
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var content = string.Join("\n", (lines ?? Array.Empty<string>()).Where(line => !string.IsNullOrWhiteSpace(line)).Select(line => line.Trim())).Trim();
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if (string.IsNullOrWhiteSpace(content)) return;
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sections.Add(new StructuredCvSection { Name = name, Content = content, WordCount = CountWords(content) });
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}
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private static void AddIf(List<string> lines, string? value)
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{
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if (!string.IsNullOrWhiteSpace(value)) lines.Add(value.Trim());
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}
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private static void ApplyContact(StructuredCvContact contact, string content)
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{
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var lines = content.Replace("\r\n", "\n").Split('\n', StringSplitOptions.RemoveEmptyEntries | StringSplitOptions.TrimEntries);
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contact.Email ??= Regex.Match(content, @"[A-Z0-9._%+-]+@[A-Z0-9.-]+\.[A-Z]{2,}", RegexOptions.IgnoreCase).Value.NullIfWhitespace();
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contact.Phone ??= Regex.Match(content, @"(?<!\w)(?:\+?\d[\d\s().-]{6,}\d)", RegexOptions.IgnoreCase).Value.NullIfWhitespace();
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foreach (var line in lines)
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{
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if (contact.LinkedIn is null && line.Contains("linkedin", StringComparison.OrdinalIgnoreCase))
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{
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contact.LinkedIn = line.Trim();
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continue;
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}
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if (contact.Website is null && (line.Contains("http", StringComparison.OrdinalIgnoreCase) || line.Contains("www.", StringComparison.OrdinalIgnoreCase) || line.Contains(".") && !line.Contains('@')))
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{
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contact.Website = line.Trim();
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}
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}
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var leftovers = lines.Where(line => !line.Contains('@') && !line.Contains("linkedin", StringComparison.OrdinalIgnoreCase) && !line.Equals(contact.Website, StringComparison.OrdinalIgnoreCase) && !line.Equals(contact.Phone, StringComparison.OrdinalIgnoreCase)).ToList();
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if (leftovers.Count > 0) contact.FullName ??= leftovers[0].Trim();
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if (leftovers.Count > 1) contact.Headline ??= leftovers[1].Trim();
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if (leftovers.Count > 2) contact.Location ??= leftovers[2].Trim();
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}
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private static List<StructuredCvLanguage> ParseLanguages(string content)
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{
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return SplitList(content)
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.Select(item =>
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{
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var name = item;
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string? level = null;
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string? notes = null;
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var colonIndex = item.IndexOf(':');
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if (colonIndex > 0)
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{
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name = item[..colonIndex].Trim();
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var remainder = item[(colonIndex + 1)..].Trim();
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var noteMatch = Regex.Match(remainder, @"^(.*?)\s*\((.*?)\)$");
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if (noteMatch.Success)
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{
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level = noteMatch.Groups[1].Value.NullIfWhitespace();
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notes = noteMatch.Groups[2].Value.NullIfWhitespace();
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}
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else
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{
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level = remainder.NullIfWhitespace();
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}
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}
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return new StructuredCvLanguage { Name = name.NullIfWhitespace(), Level = level, Notes = notes };
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})
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.Where(language => !string.IsNullOrWhiteSpace(language.Name))
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.ToList();
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}
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private static List<StructuredCvJob> ParseJobs(string content)
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{
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var blocks = SplitBlocks(content);
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return blocks.Select(ParseJobBlock).Where(job => job is not null).Select(job => job!).ToList();
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}
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private static StructuredCvJob? ParseJobBlock(string block)
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{
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var lines = block.Replace("\r\n", "\n").Split('\n', StringSplitOptions.RemoveEmptyEntries | StringSplitOptions.TrimEntries).ToList();
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if (lines.Count == 0) return null;
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var job = new StructuredCvJob();
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if (lines[0].StartsWith("###", StringComparison.Ordinal)) lines[0] = lines[0].TrimStart('#', ' ');
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job.Title = lines[0].NullIfWhitespace();
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var metadata = lines.Skip(1).TakeWhile(line => !IsBullet(line)).ToList();
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var dateValue = metadata.Select(line => Regex.Match(line, @"(?:(?:\w+\s+)?\d{4}|Present|Current)(?:\s*[-–]\s*(?:(?:\w+\s+)?\d{4}|Present|Current))?", RegexOptions.IgnoreCase).Value.NullIfWhitespace()).FirstOrDefault(value => value is not null);
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if (!string.IsNullOrWhiteSpace(dateValue))
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{
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var parts = Regex.Split(dateValue, "\\s*[-–]\\s*");
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job.Start = parts.FirstOrDefault().NullIfWhitespace();
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job.End = parts.Skip(1).FirstOrDefault().NullIfWhitespace();
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job.IsCurrent = string.Equals(job.End, "present", StringComparison.OrdinalIgnoreCase) || string.Equals(job.End, "current", StringComparison.OrdinalIgnoreCase);
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}
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var metadataWithoutDates = metadata.Select(line => line.Replace(dateValue ?? string.Empty, string.Empty).Trim(' ', '|', ',', '-')).Where(line => !string.IsNullOrWhiteSpace(line)).ToList();
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if (metadataWithoutDates.Count > 0) job.Company = metadataWithoutDates[0].NullIfWhitespace();
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if (metadataWithoutDates.Count > 1) job.Location = metadataWithoutDates[1].NullIfWhitespace();
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job.Bullets = lines.Where(IsBullet).Select(line => line.Trim().TrimStart('-', '•', '*', ' ')).Where(line => !string.IsNullOrWhiteSpace(line)).ToList();
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job.Skills = lines
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.Where(line => line.StartsWith("Skills:", StringComparison.OrdinalIgnoreCase))
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.SelectMany(line => SplitList(line[(line.IndexOf(':') + 1)..]))
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.ToList();
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return string.IsNullOrWhiteSpace(job.Title) && string.IsNullOrWhiteSpace(job.Company) && job.Bullets.Count == 0 ? null : job;
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}
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private static List<StructuredCvEducation> ParseEducation(string content)
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{
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var blocks = SplitBlocks(content);
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return blocks.Select(ParseEducationBlock).Where(education => education is not null).Select(education => education!).ToList();
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}
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private static StructuredCvEducation? ParseEducationBlock(string block)
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{
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var lines = block.Replace("\r\n", "\n").Split('\n', StringSplitOptions.RemoveEmptyEntries | StringSplitOptions.TrimEntries).ToList();
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if (lines.Count == 0) return null;
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var education = new StructuredCvEducation();
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if (lines[0].StartsWith("###", StringComparison.Ordinal)) lines[0] = lines[0].TrimStart('#', ' ');
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education.Qualification = lines[0].NullIfWhitespace();
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var metadata = lines.Skip(1).TakeWhile(line => !IsBullet(line)).ToList();
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var dateValue = metadata.Select(line => Regex.Match(line, @"(?:(?:\w+\s+)?\d{4})(?:\s*[-–]\s*(?:(?:\w+\s+)?\d{4}|Present|Current))?", RegexOptions.IgnoreCase).Value.NullIfWhitespace()).FirstOrDefault(value => value is not null);
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if (!string.IsNullOrWhiteSpace(dateValue))
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{
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var parts = Regex.Split(dateValue, "\\s*[-–]\\s*");
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education.Start = parts.FirstOrDefault().NullIfWhitespace();
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education.End = parts.Skip(1).FirstOrDefault().NullIfWhitespace();
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}
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var metadataWithoutDates = metadata.Select(line => line.Replace(dateValue ?? string.Empty, string.Empty).Trim(' ', '|', ',', '-')).Where(line => !string.IsNullOrWhiteSpace(line)).ToList();
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if (metadataWithoutDates.Count > 0) education.Institution = metadataWithoutDates[0].NullIfWhitespace();
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if (metadataWithoutDates.Count > 1) education.Location = metadataWithoutDates[1].NullIfWhitespace();
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education.Details = lines.Skip(1).Where(IsBullet).Select(line => line.Trim().TrimStart('-', '•', '*', ' ')).Where(line => !string.IsNullOrWhiteSpace(line)).ToList();
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return string.IsNullOrWhiteSpace(education.Qualification) && string.IsNullOrWhiteSpace(education.Institution) && education.Details.Count == 0 ? null : education;
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}
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private static List<string> SplitBlocks(string content)
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{
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var normalized = content.Replace("\r\n", "\n").Trim();
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if (string.IsNullOrWhiteSpace(normalized)) return new List<string>();
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if (normalized.Contains("### ", StringComparison.Ordinal))
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{
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return Regex.Split(normalized, @"(?=^###\s+)" , RegexOptions.Multiline)
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.Select(block => block.Trim())
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.Where(block => !string.IsNullOrWhiteSpace(block))
|
||
.ToList();
|
||
}
|
||
|
||
return Regex.Split(normalized, @"\n\s*\n")
|
||
.Select(block => block.Trim())
|
||
.Where(block => !string.IsNullOrWhiteSpace(block))
|
||
.ToList();
|
||
}
|
||
|
||
private static bool IsBullet(string value)
|
||
{
|
||
var trimmed = value.TrimStart();
|
||
return trimmed.StartsWith("-", StringComparison.Ordinal)
|
||
|| trimmed.StartsWith("•", StringComparison.Ordinal)
|
||
|| trimmed.StartsWith("*", StringComparison.Ordinal);
|
||
}
|
||
|
||
private static List<string> SplitList(string? content)
|
||
{
|
||
if (string.IsNullOrWhiteSpace(content)) return new List<string>();
|
||
|
||
return content
|
||
.Replace("\r\n", "\n")
|
||
.Split('\n', StringSplitOptions.RemoveEmptyEntries)
|
||
.SelectMany(line => line.Contains(',') && !line.TrimStart().StartsWith("-", StringComparison.Ordinal)
|
||
? line.Split(',', StringSplitOptions.RemoveEmptyEntries | StringSplitOptions.TrimEntries)
|
||
: new[] { line })
|
||
.Select(item => item.Trim().TrimStart('-', '•', '*', ' '))
|
||
.Where(item => !string.IsNullOrWhiteSpace(item))
|
||
.Distinct(StringComparer.OrdinalIgnoreCase)
|
||
.ToList();
|
||
}
|
||
|
||
private static List<string> CleanList(IEnumerable<string>? values)
|
||
{
|
||
return (values ?? Array.Empty<string>())
|
||
.Select(value => value?.Trim() ?? string.Empty)
|
||
.Where(value => !string.IsNullOrWhiteSpace(value))
|
||
.Distinct(StringComparer.OrdinalIgnoreCase)
|
||
.ToList();
|
||
}
|
||
|
||
private static int CountWords(string? content)
|
||
{
|
||
if (string.IsNullOrWhiteSpace(content)) return 0;
|
||
return content.Trim().Split((char[]?)null, StringSplitOptions.RemoveEmptyEntries).Length;
|
||
}
|
||
|
||
private static string? TrimOrNull(string? value)
|
||
{
|
||
return string.IsNullOrWhiteSpace(value) ? null : value.Trim();
|
||
}
|
||
|
||
private static string? FormatDateRange(string? start, string? end, bool isCurrent)
|
||
{
|
||
if (string.IsNullOrWhiteSpace(start) && string.IsNullOrWhiteSpace(end)) return null;
|
||
if (string.IsNullOrWhiteSpace(start)) return end;
|
||
return $"{start} - {(isCurrent ? "Present" : end ?? "Present")}";
|
||
}
|
||
|
||
private static string? NullIfWhitespace(this string? value)
|
||
{
|
||
return string.IsNullOrWhiteSpace(value) ? null : value.Trim();
|
||
}
|
||
}
|