using Microsoft.EntityFrameworkCore;
using Microsoft.Extensions.Logging;

namespace FictionArchive.Service.Shared.Services.Database;

/// <summary>
/// Abstract DbContext handling boilerplate shared between our contexts. Should not share actual data.
/// </summary>
public abstract class FictionArchiveDbContext : DbContext
{
    protected readonly ILogger _logger;

    protected FictionArchiveDbContext(DbContextOptions options, ILogger logger) : base(options)
    {
        _logger = logger;
    }

    protected override void OnConfiguring(DbContextOptionsBuilder optionsBuilder)
    {
        optionsBuilder.AddInterceptors(new AuditInterceptor());
        base.OnConfiguring(optionsBuilder);
    }
    
    public void UpdateDatabase()
    {
        IEnumerable<string> pendingMigrations = Database.GetPendingMigrations();
        if (!pendingMigrations.Any())
        {
            _logger.LogDebug("No pending migrations found, continuing.");
            return;
        }

        foreach (string migration in pendingMigrations)
        {
            _logger.LogInformation("Found pending migration with name {migrationName}.", migration);
        }
        _logger.LogInformation("Attempting to apply pending migrations...");
        Database.Migrate();
        _logger.LogInformation("Migrations applied.");
    }
}