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//
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namespace Migration.Creator;

public class MigrationCreator
{
    private readonly IServiceProvider _serviceProvider;

    public MigrationCreator(IServiceProvider serviceProvider)
    {
        _serviceProvider = serviceProvider;
    }

    public void RunCreateMigrations(Options options)
    {
        foreach (var providerInfo in options.Providers)
        {
            CreateMigration(options, typeof(MigrationContext), providerInfo);
        }
        
        foreach (var providerInfo in options.TeamlabsiteProviders)
        {
            CreateMigration(options, typeof(TeamlabSiteContext), providerInfo);
        }
        
        Console.WriteLine($"Update migrations");
    }

    private void CreateMigration(Options options, Type contextType, ProviderInfo providerInfo)
    {
        var dbContextActivator = new DbContextActivator(_serviceProvider);
        var context = dbContextActivator.CreateInstance(contextType, providerInfo);

        var modelDiffChecker = new ModelDifferenceChecker(context);

        if (!modelDiffChecker.IsDifferent())
        {
            return;
        }

        context = dbContextActivator.CreateInstance(contextType, providerInfo); //Hack: refresh context

        var providerInfoProjectPath = Solution.GetProviderProjectPath(options.Path, providerInfo);
        var migrationGenerator = new MigrationGenerator(context, providerInfo.Provider, providerInfoProjectPath);
        migrationGenerator.Generate();
    }
}