using AuthApi.Models;
using MongoDB.Driver;

namespace AuthApi.Services;

public class SteamAuthTransactionService
{
    private readonly IMongoCollection<SteamAuthTransaction> _transactions;

    public SteamAuthTransactionService(IConfiguration cfg)
    {
        var connectionString = cfg["MongoDB:ConnectionString"] ?? "mongodb://127.0.0.1:27017";
        var databaseName = cfg["MongoDB:DatabaseName"] ?? "GameDb";
        var database = new MongoClient(connectionString).GetDatabase(databaseName);
        _transactions = database.GetCollection<SteamAuthTransaction>("SteamAuthTransactions");
        var ttl = Builders<SteamAuthTransaction>.IndexKeys.Ascending(x => x.ExpiresUtc);
        _transactions.Indexes.CreateOne(new CreateIndexModel<SteamAuthTransaction>(ttl,
            new CreateIndexOptions { ExpireAfter = TimeSpan.Zero }));
    }

    public Task CreateAsync(SteamAuthTransaction transaction) => _transactions.InsertOneAsync(transaction);

    public async Task<SteamAuthTransaction?> GetAsync(string id) =>
        await _transactions.Find(x => x.Id == id).FirstOrDefaultAsync();

    public async Task<bool> MarkVerifiedAsync(string id, string steamId, string status, string? userId)
    {
        var filter = Builders<SteamAuthTransaction>.Filter.Eq(x => x.Id, id) &
            Builders<SteamAuthTransaction>.Filter.Eq(x => x.Status, "pending") &
            Builders<SteamAuthTransaction>.Filter.Gt(x => x.ExpiresUtc, DateTime.UtcNow);
        var update = Builders<SteamAuthTransaction>.Update
            .Set(x => x.SteamId, steamId)
            .Set(x => x.Status, status)
            .Set(x => x.UserId, userId);
        return (await _transactions.UpdateOneAsync(filter, update)).ModifiedCount == 1;
    }

    public async Task<bool> MarkCompleteAsync(string id, string steamId, string userId)
    {
        var filter = Builders<SteamAuthTransaction>.Filter.Eq(x => x.Id, id) &
            Builders<SteamAuthTransaction>.Filter.Eq(x => x.Status, "requires_account") &
            Builders<SteamAuthTransaction>.Filter.Eq(x => x.SteamId, steamId) &
            Builders<SteamAuthTransaction>.Filter.Gt(x => x.ExpiresUtc, DateTime.UtcNow);
        var update = Builders<SteamAuthTransaction>.Update
            .Set(x => x.Status, "complete")
            .Set(x => x.UserId, userId);
        return (await _transactions.UpdateOneAsync(filter, update)).ModifiedCount == 1;
    }
}