using System;
using System.Threading.Tasks;

using Microsoft.AspNetCore.Mvc;

using Newtonsoft.Json.Linq;

using PluralKit.Core;

namespace PluralKit.API
{
    [ApiController]
    [ApiVersion("2.0")]
    [Route("v{version:apiVersion}/systems")]
    public class SystemControllerV2: PKControllerBase
    {
        public SystemControllerV2(IServiceProvider svc) : base(svc) { }

        [HttpGet("{systemRef}")]
        public async Task<IActionResult> SystemGet(string systemRef)
        {
            var system = await ResolveSystem(systemRef);
            if (system == null) throw Errors.SystemNotFound;
            else return Ok(system.ToJson(this.ContextFor(system), v: APIVersion.V2));
        }

        [HttpPatch("@me")]
        public async Task<IActionResult> DoSystemPatch([FromBody] JObject data)
        {
            var system = await ResolveSystem("@me");
            var patch = SystemPatch.FromJSON(data, APIVersion.V2);

            patch.AssertIsValid();
            if (patch.Errors.Count > 0)
                throw new ModelParseError(patch.Errors);

            var newSystem = await _repo.UpdateSystem(system.Id, patch);
            return Ok(newSystem.ToJson(LookupContext.ByOwner, v: APIVersion.V2));
        }
    }
}