using System;
using System.Collections;
using System.Linq;
using Luneraria.Core;
using Luneraria.View;
using NUnit.Framework;
using UnityEngine;
using UnityEngine.TestTools;

namespace Luneraria.UI.Tests
{
    /// <summary>
    /// S3 in the real scene: camp guardians on the lanes in a camp round, the team panel's ward
    /// and camp rows, a ward that brings the enemy army of its lane into the planning preview,
    /// and the fog of war that hides enemy figures nobody of the own team sees. S3Bilder
    /// (explicit) captures them at 1920×1080; LUNE_EVIDENCE names the folder below
    /// docs/port/screenshots (default s3/spiel).
    /// </summary>
    public sealed class S3RulesViewsTests
    {
        static void Send(HudSession s, Command command)
        {
            CommandResult result = s.Match.Submit(HudSession.Human, command);
            Assert.IsTrue(result.Ok, command.Type + ": " + result.Message);
            s.Game.RebuildPreview();
            s.Sync();
        }

        static IEnumerator WaitReady(HudSession s)
        {
            float waited = 0f;
            while (s.Hud.ReadyBlocked() && waited < 5f)
            {
                waited += Time.unscaledDeltaTime;
                yield return null;
            }
        }

        static LuneUnitView[] Views(HudSession s)
        {
            return UnityEngine.Object.FindObjectsByType<LuneUnitView>(FindObjectsInactive.Include, FindObjectsSortMode.None);
        }

        [UnityTest, Timeout(600000)]
        public IEnumerator S3Hud()
        {
            var s = new HudSession();
            yield return s.Open(1920, 1080, seed: 4, startRound: 3, extraGold: 1000, extended: true);
            Assert.IsTrue(s.Match.CampRound(3), "round 3 is a camp round");
            StringAssert.Contains("diese Runde", s.Hud.Team.CampState.text, "the team panel announces the guardians");
            Assert.IsTrue(HudSession.Visible(s.Hud.Lanes["mid"].CampMark), "the lane shows the camp mark");
            yield return s.Starter();
            s.Leave();
            s.Game.Key(KeyCode.Space);
            yield return HudSession.Frames(3);
            Assert.AreEqual(3, s.Match.Combat.Units.Count(u => u.Kind == "camp"), "three guardians in combat");
            yield return HudSession.Frames(2);
            Assert.IsTrue(Views(s).Any(v => v.Unit != null && v.Unit.Kind == "camp" && v.gameObject.activeSelf), "guardians have visible figures");
            Assert.IsTrue(s.Game.View.Hidden.Count > 0, "the fog hides Rot's distant units at the start");
            LuneUnitView hiddenView = Views(s).First(v => v.Unit != null && s.Game.View.Hidden.Contains(v.Unit.Id));
            Assert.IsFalse(hiddenView.gameObject.activeSelf, "a hidden enemy has no visible figure");
            Assert.AreEqual(1, hiddenView.Unit.Team, "only enemies are hidden");
            yield return s.FinishCombat();
            yield return WaitReady(s);
            Assert.IsTrue(s.Match.Players.Skip(3).Any(p => p.Roster.Count > 0), "Rot has a committed army now");
            int enemiesBefore = s.Game.View.Preview.Units.Count(u => u.Team == 1);
            Assert.AreEqual(0, enemiesBefore, "without scouting the preview shows no enemy");
            Send(s, Command.Ward("mid"));
            yield return HudSession.Frames(2);
            Assert.IsTrue(s.Hud.Team.WardButtons["mid"].On, "the mid ward button shows the ward");
            Assert.IsTrue(s.Game.View.Preview.Units.Any(u => u.Team == 1 && u.Lane == "mid"), "the ward shows Rot's mid army in the preview");
            Assert.IsFalse(s.Game.View.Preview.Units.Any(u => u.Team == 1 && u.Lane == "top"), "top stays unscouted");
            s.Close();
        }

        [UnityTest, Timeout(600000), Explicit("Bildwerkzeug: nur gezielt per -testFilter")]
        public IEnumerator S3Bilder()
        {
            string evidence = Environment.GetEnvironmentVariable("LUNE_EVIDENCE");
            string folder = "docs/port/screenshots/" + (string.IsNullOrEmpty(evidence) ? "s3/spiel" : evidence) + "/";
            var s = new HudSession();
            yield return s.Open(1920, 1080, seed: 4, startRound: 3, extraGold: 1000, extended: true);
            yield return s.Starter();
            s.Leave();
            yield return new WaitForSecondsRealtime(.4f);
            yield return s.Shot(folder + "01-planung-lager-angekuendigt.png");
            s.Game.Key(KeyCode.Space);
            yield return HudSession.Frames(2);
            yield return s.Fight(7.0);
            s.Driver.Paused = true;
            LuneUnit camp = s.Match.Combat.Units.Where(u => u.Kind == "camp" && u.Lane == "mid").First();
            s.Rig.LookAt(camp.Position, 14f, true);
            yield return new WaitForSecondsRealtime(.5f);
            yield return s.Shot(folder + "02-kampf-um-das-mondlager.png");
            s.Rig.LookAt(camp.Position, 40f, true);
            yield return new WaitForSecondsRealtime(.5f);
            yield return s.Shot(folder + "03-nebel-im-kampf.png");
            s.Driver.Paused = false;
            yield return s.FinishCombat();
            yield return WaitReady(s);
            Send(s, Command.Ward("mid"));
            LuneUnit enemy = s.Game.View.Preview.Units.FirstOrDefault(u => u.Team == 1 && u.Lane == "mid");
            if (enemy != null)
                s.Rig.LookAt(enemy.Position, 18f, true);
            yield return new WaitForSecondsRealtime(.6f);
            yield return s.Shot(folder + "04-spaeher-zeigt-gegnerische-aufstellung.png");
            s.Hover(s.Hud.Team.WardButtons["mid"]);
            yield return new WaitForSecondsRealtime(.3f);
            yield return s.Shot(folder + "05-spaeher-tooltip.png");
            s.Close();
        }
    }
}