using System.Text.Json;

namespace View_by_Distance.Shared.Models.Stateless.Methods;

internal abstract class Person
{

    // ...

    internal static (Models.PersonBirthday?, string) Get(string personBirthdayFormat, string personDisplayDirectory, string personKeyDirectory, DateTime birthday)
    {
        Models.PersonBirthday? personBirthday = new(birthday);
        string personKeyFormatted = IPersonBirthday.GetFormatted(personBirthdayFormat, personBirthday);
        string convertedPersonKeyDirectory = Path.Combine(personDisplayDirectory, personKeyFormatted);
        if (!Directory.Exists(convertedPersonKeyDirectory))
            Directory.Move(personKeyDirectory, convertedPersonKeyDirectory);
        return new(personBirthday, personKeyFormatted);
    }

    internal static Models.Person GetPerson(char[] personCharacters, string personDisplayDirectoryName, string[] personDisplayDirectoryAllFiles, long personKey, Models.PersonBirthday personBirthday)
    {
        Models.Person result;
        string[] matches;
        List<Models.PersonURL> urls = new();
        Models.PersonId id = new(personKey);
        List<Models.PersonEmail> emails = new();
        List<Models.PersonNumber> numbers = new();
        List<Models.PersonComment> comments = new();
        List<Models.PersonAddress> addresses = new();
        string checkFileName = $"{personDisplayDirectoryName.First()}.json";
        string nameWithoutApproximateYears = personDisplayDirectoryName.Split(personCharacters).First();
        matches = (from l in personDisplayDirectoryAllFiles where Path.GetFileName(l) == checkFileName select l).ToArray();
        Models.PersonName? name;
        if (!matches.Any())
            name = PersonName.GetPersonName(nameWithoutApproximateYears);
        else
        {
            string json = File.ReadAllText(matches.First());
            name = JsonSerializer.Deserialize<Models.PersonName>(json, new JsonSerializerOptions { PropertyNameCaseInsensitive = true });
            name ??= PersonName.GetPersonName(nameWithoutApproximateYears);
            if (name.Last is null || string.IsNullOrEmpty(name.Last.Value))
                name = PersonName.GetPersonName(nameWithoutApproximateYears);
        }
        result = new(id, personBirthday, name, comments, urls, numbers, emails, addresses);
        return result;
    }

}