using Dapper;
using Npgsql;

namespace SDG_Backend_Barracuda.Models;

public record Game(int Id, string Name, string URL);
public record GameInformation(string Name, string URL);

public interface IGameModel : IDatabaseModel<Game, GameInformation>
{
}

public class GameModel(NpgsqlDataSource dataSource) : IGameModel, IEndpointRouteHandler
{
    public static void MapEndpoints(IEndpointRouteBuilder router)
    {
        var gameEndpoint = router.MapGroup("/game");

        gameEndpoint.MapPost("/", async (GameInformation input, IGameModel model) =>
        {
            var newGame = await model.Create(input);
            return Results.Created($"/game/{newGame.Id}", newGame);
        });

        gameEndpoint.MapGet("/", async (IGameModel model) =>
            Results.Ok(await model.GetAll()));

        gameEndpoint.MapGet("/{id}", async (int id, IGameModel model) =>
            await model.GetById(id) is { } g ? Results.Ok(g) : Results.NotFound());

        gameEndpoint.MapPut("/{id}", async (int id, GameInformation input, IGameModel model) =>
            await model.Update(id, input) is { } g ? Results.Ok(g) : Results.NotFound());

        gameEndpoint.MapDelete("/{id}", async (int id, IGameModel model) =>
            await model.Delete(id) ? Results.NoContent() : Results.NotFound());
    }

    public async Task<IEnumerable<Game>> GetAll()
    {
        await using var connection = await dataSource.OpenConnectionAsync();
        var sql = """SELECT * FROM "Game";""";
        return await connection.QueryAsync<Game>(sql);
    }

    public async Task<Game?> GetById(int id)
    {
        await using var connection = await dataSource.OpenConnectionAsync();
        var sql = """SELECT * FROM "Game" WHERE "Id" = @Id;""";
        return await connection.QueryFirstOrDefaultAsync<Game>(sql, new { Id = id });
    }

    public async Task<Game> Create(GameInformation input)
    {
        await using var connection = await dataSource.OpenConnectionAsync();
        var sql = """INSERT INTO "Game" ("Name", "URL") VALUES (@Name, @URL) RETURNING "Id", "Name", "URL";""";
        return await connection.QuerySingleAsync<Game>(sql, input);
    }

    public async Task<Game?> Update(int id, GameInformation input)
    {
        await using var connection = await dataSource.OpenConnectionAsync();
        var sql = """UPDATE "Game" SET "Name" = @Name, "URL" = @URL WHERE "Id" = @Id RETURNING "Id", "Name", "URL";""";
        return await connection.QueryFirstOrDefaultAsync<Game>(sql, new { Id = id, input.Name, input.URL });
    }

    public async Task<bool> Delete(int id)
    {
        await using var connection = await dataSource.OpenConnectionAsync();
        var sql = """DELETE FROM "Game" WHERE "Id" = @Id;""";
        var rowsAffected = await connection.ExecuteAsync(sql, new { Id = id });
        return rowsAffected > 0;
    }
}