using System.Globalization;
using System.Net;
using System.Text;
using JobTrackerApi.Models;
namespace JobTrackerApi.Services;
public sealed record CoverLetterRenderDto(string Html, string ThemeId, string SuggestedFileName);
public sealed class CoverLetterDocumentRenderer
{
public CoverLetterRenderDto Render(string? text, CoverLetterDocumentSettings? settings)
{
var s = CoverLetterDocumentSettingsJson.Normalize(settings);
static string E(string? value) => WebUtility.HtmlEncode(value ?? "");
static string F(double? value) => value!.Value.ToString("0.##", CultureInfo.InvariantCulture);
var font = s.BodyFont!;
var size = s.PageSize == "letter" ? "215.9mm 279.4mm" : "210mm 297mm";
var width = s.PageSize == "letter" ? "215.9mm" : "210mm";
var height = s.PageSize == "letter" ? "279.4mm" : "297mm";
var body = new StringBuilder();
var list = false;
foreach (var line in (text ?? "").Replace("\r\n", "\n").Replace('\r', '\n').Split('\n'))
{
var bullet = line.StartsWith("- ", StringComparison.Ordinal) || line.StartsWith("* ", StringComparison.Ordinal);
if (bullet && !list) { body.Append(""); list = true; }
if (!bullet && list) { body.Append("
"); list = false; }
if (bullet) body.Append("").Append(ThemedCvRenderer.Inline(line[2..])).Append("");
else if (line.Length > 0) body.Append("").Append(ThemedCvRenderer.Inline(line)).Append("
");
else body.Append("");
}
if (list) body.Append("");
var contact = string.Join(" · ", new[] { s.SenderEmail, s.SenderPhone, s.SenderLocation }.Where(v => !string.IsNullOrWhiteSpace(v)).Select(E));
var letterLabel = s.Language == "nb-NO" ? "Søknadsbrev" : "Cover letter";
var bodyLabel = s.Language == "nb-NO" ? "Brevtekst" : "Cover letter text";
var title = string.Join(" — ", new[] { s.Subject, s.SenderName }.Where(value => !string.IsNullOrWhiteSpace(value)));
var senderHeading = string.IsNullOrWhiteSpace(s.SenderName) ? "" : $"{E(s.SenderName)}
";
var subjectHeading = string.IsNullOrWhiteSpace(s.Subject) ? "" : $"{E(s.Subject)}
";
var html = $$"""
{{E(string.IsNullOrEmpty(title) ? letterLabel : title)}}
{{senderHeading}}{{E(s.SenderTitle)}}
{{contact}}
{{E(s.Date)}}
{{E(s.Recipient)}}
{{subjectHeading}}
{{body}}
""";
return new(html, s.ThemeId, "cover-letter.pdf");
}
}