using System;
using IvfTl.ControlHost.Debug;
using IvfTl.ControlHost.Tests.Fakes;
using Newtonsoft.Json.Linq;
using Xunit;

namespace IvfTl.ControlHost.Tests
{
    /// <summary>缓冲瓶(舱11)专属 op 路由测试:验证 Execute 把 5 个 op 分发到正确底层方法。</summary>
    public class DebugBufferOpTests
    {
        private static readonly DateTime Now = new DateTime(2026, 6, 24, 0, 0, 0, DateTimeKind.Utc);

        // 返回 (manager, sid, fakeSerial) 三件套,照 DebugStreamSessionTests 的装配方式
        private (DebugSessionManager mgr, string sid, FakeSerial ser) NewSession()
        {
            var ser = new FakeSerial();
            var gate = new FakeGate(11, ser);
            var mgr = new DebugSessionManager(_ => gate, () => Now, ttlMs: 10000, log: null);
            string sid = (string)mgr.Acquire(11).Result;
            return (mgr, sid, ser);
        }

        [Fact]
        public void BufferState_RoutesTo_BufferBottleStateWait_AndReturnsTuple()
        {
            var (mgr, sid, ser) = NewSession();
            ser.BufferStateReturn = (2.5m, 36.1m, 37.2m);

            var r = mgr.Execute(sid, "BufferState", null);

            Assert.True(r.Ok);
            Assert.Contains("BufferState", ser.Calls);
            var jo = JObject.FromObject(r.Result);
            Assert.Equal(2.5m, jo["pressure"].Value<decimal>());
            Assert.Equal(36.1m, jo["t1"].Value<decimal>());
            Assert.Equal(37.2m, jo["t2"].Value<decimal>());
        }

        [Fact]
        public void BufferAeration_RoutesTo_BufferBottleAerationWait()
        {
            var (mgr, sid, ser) = NewSession();

            var r = mgr.Execute(sid, "BufferAeration", null);

            Assert.True(r.Ok);
            Assert.Equal(true, r.Result);
            Assert.Contains("BufferAeration", ser.Calls);
        }

        [Fact]
        public void ReadLight_RoutesTo_ReadLightBrightnessWait_AndReturnsInt()
        {
            var (mgr, sid, ser) = NewSession();

            var r = mgr.Execute(sid, "ReadLight", null);

            Assert.True(r.Ok);
            Assert.Equal(500, r.Result);   // FakeSerial.ReadLightBrightnessWait 固定返回 500
            Assert.Contains("ReadLight", ser.Calls);
        }

        [Fact]
        public void WriteLight_RoutesTo_WriteLightBrightnessWait_WithValue()
        {
            var (mgr, sid, ser) = NewSession();
            var args = new JObject { ["value"] = 320 };

            var r = mgr.Execute(sid, "WriteLight", args);

            Assert.True(r.Ok);
            Assert.Contains("WriteLight(320)", ser.Calls);
            Assert.Equal(320, ser.LastWriteLight);
        }

        [Fact]
        public void WriteOpenIntakeTimeBuffer_RoutesTo_WriteOpenIntakeTimeWait_WithIsBufferTrue()
        {
            var (mgr, sid, ser) = NewSession();
            var args = new JObject { ["value"] = 150 };

            var r = mgr.Execute(sid, "WriteOpenIntakeTimeBuffer", args);

            Assert.True(r.Ok);
            Assert.Equal(150, ser.LastWriteIntake);
            Assert.True(ser.LastWriteIntakeIsBuffer);
        }
    }
}