using System.Collections.Generic;
using System.Linq;
using NUnit.Framework;
using UnityEngine;
using BaseGames.Editor.Modules;
using BaseGames.Enemies.Abilities;

namespace BaseGames.Tests.EditMode.EditorTools
{
    /// <summary>
    /// 能力总览表格的取数与排序。UI 构建不可测，所以把「一行长什么样」「怎么排序」
    /// 「问题从哪来」抽成纯函数放这里——表格真正会出错的也正是这三处。
    /// </summary>
    public class EnemyAbilityOverviewTests
    {
        private readonly List<EnemyAbilitySO> _created = new List<EnemyAbilitySO>();

        [TearDown]
        public void TearDown()
        {
            // 项目关闭了 Domain/Scene Reload：断言失败会跳过用例后续语句，
            // 清理必须放在 TearDown，否则失败一次就往内存里漏一个 SO。
            foreach (var so in _created) if (so != null) Object.DestroyImmediate(so);
            _created.Clear();
        }

        private EnemyAbilitySO MakeAbility(
            string id, AbilityCategory category = AbilityCategory.None,
            float range = 1f, float weight = 1f, float cooldown = 1f,
            int priority = 0, string exclusion = "")
        {
            var so = ScriptableObject.CreateInstance<EnemyAbilitySO>();
            so.abilityId      = id;
            so.category       = category;
            so.rangeRadius    = range;
            so.weight         = weight;
            so.cooldown       = cooldown;
            so.priority       = priority;
            so.exclusionGroup = exclusion;
            _created.Add(so);
            return so;
        }

        // ── 归属提取 ─────────────────────────────────────────────────────

        [Test]
        public void OwnerFromPath_TakesEnemyFolderName()
        {
            // 能力资产按 AssetFolderSpec 落在 Data/Enemies/{敌人}/Abilities/ 下，
            // 归属列靠路径推导——表格要横向对比，必须能一眼看出这招是谁的。
            Assert.AreEqual("ChaoFeng", EnemyAbilityOverview.OwnerFromPath(
                "Assets/_Game/Data/Enemies/ChaoFeng/Abilities/ABL_ChaoFeng_Intro.asset"));
            Assert.AreEqual("E004", EnemyAbilityOverview.OwnerFromPath(
                "Assets/_Game/Data/Enemies/E004/Abilities/ABL_E004_Bite.asset"));
        }

        [Test]
        public void OwnerFromPath_OffSpecLayout_ReturnsPlaceholder()
        {
            // 放错目录的资产不该让整张表崩掉，但也不能假装它有归属——显示占位符，
            // 让"这个资产没按规范放"本身在表里可见。
            Assert.AreEqual(EnemyAbilityOverview.UnknownOwner,
                EnemyAbilityOverview.OwnerFromPath("Assets/Random/ABL_Stray.asset"));
            Assert.AreEqual(EnemyAbilityOverview.UnknownOwner,
                EnemyAbilityOverview.OwnerFromPath(""));
        }

        // ── 行取数 ───────────────────────────────────────────────────────

        [Test]
        public void BuildRow_CarriesTunableFields()
        {
            var so = MakeAbility("blink_strike", AbilityCategory.Attack,
                                 range: 3.5f, weight: 2f, cooldown: 4.25f,
                                 priority: 7, exclusion: "melee");

            var row = EnemyAbilityOverview.BuildRow(
                so, "Assets/_Game/Data/Enemies/E004/Abilities/ABL_E004_Blink.asset");

            Assert.AreEqual("E004",           row.Owner);
            Assert.AreEqual("blink_strike",   row.Id);
            Assert.AreEqual(AbilityCategory.Attack, row.Category);
            Assert.AreEqual(3.5f,  row.Range);
            Assert.AreEqual(2f,    row.Weight);
            Assert.AreEqual(4.25f, row.Cooldown);
            Assert.AreEqual(7,     row.Priority);
            Assert.AreEqual("melee", row.Exclusion);
            Assert.AreSame(so, row.Asset, "行必须持有资产引用，点选才能跳到它");
        }

        [Test]
        public void BuildRow_SurfacesIssue_FromAssetsOwnValidate()
        {
            // 问题判定不在表格里另写一份规则，而是调资产自己的 Validate()。
            // 这条断言守住"规则只有一处"——否则 SO 侧改了规则，表格会继续按旧规则报。
            var broken = MakeAbility("bad_attack", AbilityCategory.Attack, range: 0f);
            var ok     = MakeAbility("good_attack", AbilityCategory.Attack, range: 2f);

            var brokenRow = EnemyAbilityOverview.BuildRow(broken, "Assets/x/ABL_A.asset");
            var okRow     = EnemyAbilityOverview.BuildRow(ok,     "Assets/x/ABL_B.asset");

            Assert.IsTrue(brokenRow.HasIssue,
                "Attack 类但射程为 0 的招永远选不中，表格必须标出来");
            Assert.IsFalse(string.IsNullOrEmpty(brokenRow.Issue), "要带上原因文本，不能只给个红点");
            Assert.IsFalse(okRow.HasIssue);
        }

        // ── 排序 ─────────────────────────────────────────────────────────

        [Test]
        public void Sort_ByCooldown_BothDirections()
        {
            var rows = new List<AbilityOverviewRow>
            {
                EnemyAbilityOverview.BuildRow(MakeAbility("b", cooldown: 5f), "Assets/x/B.asset"),
                EnemyAbilityOverview.BuildRow(MakeAbility("a", cooldown: 1f), "Assets/x/A.asset"),
                EnemyAbilityOverview.BuildRow(MakeAbility("c", cooldown: 3f), "Assets/x/C.asset"),
            };

            var asc = EnemyAbilityOverview.Sort(rows, AbilityOverviewColumn.Cooldown, ascending: true);
            CollectionAssert.AreEqual(new[] { "a", "c", "b" }, asc.Select(r => r.Id).ToArray());

            var desc = EnemyAbilityOverview.Sort(rows, AbilityOverviewColumn.Cooldown, ascending: false);
            CollectionAssert.AreEqual(new[] { "b", "c", "a" }, desc.Select(r => r.Id).ToArray());
        }

        [Test]
        public void Sort_ByOwnerThenId_IsStableAcrossEnemies()
        {
            // 默认视图按归属分组才有对比意义：同一敌人的招要挨在一起，组内按 id 稳定排列。
            var rows = new List<AbilityOverviewRow>
            {
                EnemyAbilityOverview.BuildRow(MakeAbility("bite"),  "Assets/_Game/Data/Enemies/E005/Abilities/ABL_1.asset"),
                EnemyAbilityOverview.BuildRow(MakeAbility("acid"),  "Assets/_Game/Data/Enemies/E004/Abilities/ABL_2.asset"),
                EnemyAbilityOverview.BuildRow(MakeAbility("appear"),"Assets/_Game/Data/Enemies/E004/Abilities/ABL_3.asset"),
            };

            var sorted = EnemyAbilityOverview.Sort(rows, AbilityOverviewColumn.Owner, ascending: true);

            CollectionAssert.AreEqual(
                new[] { "acid", "appear", "bite" },
                sorted.Select(r => r.Id).ToArray(),
                "同归属内按 id 排，跨归属按归属名排");
        }
    }
}