using System.Text;
using System.Text.Json;
using FozFc.Api.Infrastructure.Mongo;
using MongoDB.Bson;

namespace FozFc.Api.Api.Extensions;

/// <summary>Helpers that turn BSON documents into JSON <see cref="IResult"/> responses.</summary>
public static class BsonResults
{
    private const string ContentType = "application/json";

    public static IResult Json(BsonDocument document, int status = 200) =>
        Results.Text(BsonJson.ToJson(document), ContentType, Encoding.UTF8, status);

    /// <summary>Serializes a document after normalizing <c>_id</c> -&gt; <c>id</c>.</summary>
    public static IResult Document(BsonDocument document, int status = 200) =>
        Json(BsonJson.NormalizeForOutput(document), status);

    public static IResult DocumentArray(IEnumerable<BsonDocument> documents, int status = 200)
    {
        var normalized = documents.Select(BsonJson.NormalizeForOutput);
        return Results.Text(BsonJson.ToJsonArray(normalized), ContentType, Encoding.UTF8, status);
    }

    public static IResult Error(int status, string message) =>
        Results.Text(JsonSerializer.Serialize(new { error = message }), ContentType, Encoding.UTF8, status);

    public static IResult Ok() => Json(new BsonDocument("ok", true));
}