blazor-cms/Infrastructure/Database/Demo/PatientContactSeeder.cs

using Indotalent.ConfigBackEnd.Extensions;
using Indotalent.Data.Entities;
using Microsoft.EntityFrameworkCore;

namespace Indotalent.Infrastructure.Database.Demo;

public static class PatientContactSeeder
{
    public static async Task GenerateDataAsync(AppDbContext context)
    {
        if (await context.PatientContact.AnyAsync()) return;

        var firstNames = new string[]
        {
            "James", "Mary", "Robert", "Patricia", "John", "Jennifer",
            "Michael", "Linda", "David", "Elizabeth", "William", "Barbara",
            "Richard", "Susan", "Joseph", "Jessica", "Thomas", "Sarah",
            "Charles", "Karen"
        };

        var lastNames = new string[]
        {
            "Smith", "Johnson", "Williams", "Brown", "Jones", "Garcia",
            "Miller", "Davis", "Rodriguez", "Martinez", "Hernandez", "Lopez",
            "Gonzalez", "Wilson", "Anderson", "Thomas", "Taylor", "Moore",
            "Jackson", "Martin"
        };

        var relationships = new string[]
        {
            "Spouse", "Father", "Mother", "Sibling", "Child",
            "Emergency Contact", "Next of Kin", "Legal Guardian",
            "Primary Caregiver", "Partner", "Aunt", "Uncle",
            "Grandparent", "Cousin", "Friend"
        };

        var emailDomains = new string[] { "gmail.com", "outlook.com", "yahoo.com", "icloud.com", "hotmail.com" };

        var patientIds = await context.Patient.Select(x => x.Id).ToListAsync();
        var random = new Random();
        var entityName = nameof(PatientContact);

        foreach (var patientId in patientIds)
        {
            for (int i = 0; i < 2; i++)
            {
                var firstName = GetRandomString(firstNames, random);
                var lastName = GetRandomString(lastNames, random);

                var autoNo = await context.GenerateAutoNumberAsync(
                    entityName: entityName,
                    prefixTemplate: $"{entityName.ToShortNameConsonant(3)}/{{Year}}/"
                );

                var contact = new PatientContact
                {
                    Name = $"{firstName} {lastName}",
                    AutoNumber = autoNo,
                    PatientId = patientId,
                    Title = GetRandomString(relationships, random),
                    EmailAddress = $"{firstName.ToLower()}.{lastName.ToLower()}@{GetRandomString(emailDomains, random)}",
                    PhoneNumber = GenerateRandomPhoneNumber(random)
                };

                await context.PatientContact.AddAsync(contact);
            }
        }

        await context.SaveChangesAsync();
    }

    private static string GetRandomString(string[] array, Random random)
    {
        return array[random.Next(array.Length)];
    }

    private static string GenerateRandomPhoneNumber(Random random)
    {
        return $"+1-{random.Next(200, 999)}-{random.Next(100, 999)}-{random.Next(1000, 9999)}";
    }
}