using System.Collections.Generic;
using CounterDrone.Core;
using CounterDrone.Core.Algorithms;
using CounterDrone.Core.Models;
using CounterDrone.Core.Repository;
using CounterDrone.Core.Services;
using CounterDrone.Core.Simulation;
using Xunit;

namespace CounterDrone.Core.Tests
{
    /// <summary>诊断 BuildFireSchedule 是否生成正确计划</summary>
    public class FireScheduleDiagnostics
    {
        private static readonly List<AmmunitionSpec> TestAmmo = new()
        {
            new AmmunitionSpec { AerosolType = (int)AerosolType.InertGas, InitialRadius = 50, CoreDensity = 1.0, DispersionRateBase = 5, MaxRadius = 200, MaxDuration = 60 },
            new AmmunitionSpec { AerosolType = (int)AerosolType.ActiveMaterial, InitialRadius = 30, CoreDensity = 2.0, DispersionRateBase = 3, MaxRadius = 150, MaxDuration = 45 },
        };

        [Fact]
        public void BuildFireSchedule_WithRecommendation_ProducesEvents()
        {
            // 模拟：活塞无人机威胁 → 算法推荐 → 发射计划
            var threat = new ThreatProfile
            {
                Environment = new CombatScene { WindSpeed = 3 },
                Targets = new List<TargetConfig>
                {
                    new TargetConfig { TargetType = (int)TargetType.Piston, PowerType = (int)PowerType.Piston, Quantity = 1, TypicalSpeed = 200 },
                },
                Route = new RoutePlan { FormationMode = (int)FormationMode.Single },
                Waypoints = new List<Waypoint>
                {
                    new Waypoint { PosX = 0, PosY = 500, PosZ = 0, Speed = 200 },
                    new Waypoint { PosX = 20000, PosY = 500, PosZ = 0, Speed = 200 },
                },
            };

            var rec = new DefaultDefenseAdvisor(TestAmmo).Recommend(threat);

            // 检查推荐
            Assert.True(rec.Best.RecommendedCloud.RecommendedTiming > 0,
                $"推荐时机={rec.Best.RecommendedCloud.RecommendedTiming}");
            Assert.NotEmpty(rec.Best.Platforms);

            // 模拟持久化后读取
            var cloud = rec.Best.RecommendedCloud;
            var equips = new List<EquipmentDeployment>();
            foreach (var p in rec.Best.Platforms)
                equips.Add(new EquipmentDeployment
                {
                    EquipmentRole = (int)EquipmentRole.LaunchPlatform,
                    Quantity = p.Quantity,
                    PositionX = p.Position.X, PositionY = p.Position.Y, PositionZ = p.Position.Z,
                    AerosolType = (int)rec.Best.RecommendedAerosolType,
                    MunitionCount = p.MunitionCount, Cooldown = 5,
                    MuzzleVelocity = 800,
                });

            // 手动调用 BuildFireSchedule 同样的逻辑
            var schedule = new List<FireEvent>();
            if (cloud.RecommendedTiming.HasValue && cloud.RecommendedTiming.Value > 0)
            {
                foreach (var p in equips)
                {
                    var muzzleV = (float)(p.MuzzleVelocity ?? 800);
                    var dx = (float)cloud.PositionX - (float)p.PositionX;
                    var dz = (float)cloud.PositionZ - (float)p.PositionZ;
                    var dist = (float)System.Math.Sqrt(dx * dx + dz * dz);
                    var flightTime = dist / muzzleV;
                    var fireTime = (float)cloud.RecommendedTiming.Value - flightTime;
                    if (fireTime < 0) fireTime = 0.1f;

                    schedule.Add(new FireEvent
                    {
                        FireTime = fireTime,
                        PlatformIndex = 0,
                        TargetX = (float)cloud.PositionX,
                        TargetY = (float)cloud.PositionY,
                        TargetZ = (float)cloud.PositionZ,
                        MuzzleVelocity = muzzleV,
                    });
                }
            }

            Assert.NotEmpty(schedule);
            Assert.True(schedule[0].FireTime > 0);
            Assert.Equal((float)cloud.PositionX, schedule[0].TargetX);
        }
    }
}