using System.Collections;

using UnityEngine;

using Unity.Netcode;

using Colosseum.Abnormalities;

#if UNITY_EDITOR
using UnityEditor;
#endif

namespace Colosseum.Player
{
    /// <summary>
    /// 플레이어 이상상태와 행동 제어 연동을 자동 검증하는 디버그 러너.
    /// 기절, 침묵, 사망, 리스폰 순으로 상태를 검사합니다.
    /// </summary>
    [DisallowMultipleComponent]
    public class PlayerAbnormalityVerificationRunner : NetworkBehaviour
    {
        [Header("References")]
        [SerializeField] private AbnormalityManager abnormalityManager;
        [SerializeField] private PlayerActionState actionState;
        [SerializeField] private PlayerNetworkController networkController;

        [Header("Test Data")]
        [SerializeField] private AbnormalityData stunData;
        [SerializeField] private AbnormalityData silenceData;

        [Header("Execution")]
        [Tooltip("에디터 플레이 시작 시 자동 검증 실행")]
        [SerializeField] private bool runOnStartInEditor = false;

        [Tooltip("각 검증 단계 사이 대기 시간")]
        [Min(0.05f)]
        [SerializeField] private float settleDelay = 0.2f;

        [Header("Result")]
        [SerializeField] private bool isRunning;
        [SerializeField] private bool lastRunPassed;
        [SerializeField] private int totalChecks;
        [SerializeField] private int failedChecks;
        [TextArea(5, 12)]
        [SerializeField] private string lastReport = string.Empty;

        private readonly System.Text.StringBuilder reportBuilder = new System.Text.StringBuilder();

        public override void OnNetworkSpawn()
        {
            if (!IsOwner || !ShouldEnableRunner())
            {
                enabled = false;
                return;
            }

            ResolveReferences();
            LoadDefaultAssetsIfNeeded();

            if (runOnStartInEditor)
            {
                StartCoroutine(RunVerificationRoutine());
            }
        }

        [ContextMenu("Run Verification")]
        public void RunVerification()
        {
            if (!Application.isPlaying || !IsOwner || isRunning)
                return;

            StartCoroutine(RunVerificationRoutine());
        }

        private IEnumerator RunVerificationRoutine()
        {
            if (isRunning)
                yield break;

            ResolveReferences();
            LoadDefaultAssetsIfNeeded();

            if (abnormalityManager == null || actionState == null || networkController == null || stunData == null || silenceData == null)
            {
                Debug.LogWarning("[AbnormalityVerification] Missing references or test data.");
                yield break;
            }

            isRunning = true;
            totalChecks = 0;
            failedChecks = 0;
            lastRunPassed = false;
            reportBuilder.Clear();
            AppendLine("=== Player Abnormality Verification Start ===");

            abnormalityManager.RemoveAllAbnormalities();
            RequestRespawnRpc();
            yield return new WaitForSeconds(settleDelay);

            Verify("초기 상태: 사망 아님", !networkController.IsDead);
            Verify("초기 상태: 이동 가능", actionState.CanMove);
            Verify("초기 상태: 스킬 사용 가능", actionState.CanUseSkills);

            abnormalityManager.ApplyAbnormality(stunData, gameObject);
            yield return new WaitForSeconds(settleDelay);

            Verify("기절 적용: IsStunned", abnormalityManager.IsStunned);
            Verify("기절 적용: ActionState.IsStunned", actionState.IsStunned);
            Verify("기절 적용: 이동 불가", !actionState.CanMove);
            Verify("기절 적용: 점프 불가", !actionState.CanJump);
            Verify("기절 적용: 스킬 사용 불가", !actionState.CanUseSkills);
            Verify("기절 적용: 이동속도 0", Mathf.Approximately(actionState.MoveSpeedMultiplier, 0f));

            yield return new WaitForSeconds(stunData.duration + settleDelay);

            Verify("기절 해제: IsStunned false", !abnormalityManager.IsStunned);
            Verify("기절 해제: 이동 가능 복구", actionState.CanMove);
            Verify("기절 해제: 스킬 사용 가능 복구", actionState.CanUseSkills);

            abnormalityManager.ApplyAbnormality(silenceData, gameObject);
            yield return new WaitForSeconds(settleDelay);

            Verify("침묵 적용: IsSilenced", abnormalityManager.IsSilenced);
            Verify("침묵 적용: 이동 가능 유지", actionState.CanMove);
            Verify("침묵 적용: 점프 가능 유지", actionState.CanJump);
            Verify("침묵 적용: 스킬 사용 불가", !actionState.CanUseSkills);

            yield return new WaitForSeconds(silenceData.duration + settleDelay);

            Verify("침묵 해제: IsSilenced false", !abnormalityManager.IsSilenced);
            Verify("침묵 해제: 스킬 사용 가능 복구", actionState.CanUseSkills);

            abnormalityManager.ApplyAbnormality(stunData, gameObject);
            yield return new WaitForSeconds(settleDelay);
            networkController.TakeDamageRpc(networkController.Health + 1f);
            yield return new WaitForSeconds(settleDelay);

            Verify("사망 처리: IsDead", networkController.IsDead);
            Verify("사망 처리: 입력 불가", !actionState.CanReceiveInput);
            Verify("사망 처리: 이동 불가", !actionState.CanMove);
            Verify("사망 처리: 스킬 사용 불가", !actionState.CanUseSkills);
            Verify("사망 처리: 활성 이상상태 제거", abnormalityManager.ActiveAbnormalities.Count == 0);

            RequestRespawnRpc();
            yield return new WaitForSeconds(settleDelay);

            Verify("리스폰: IsDead false", !networkController.IsDead);
            Verify("리스폰: 활성 이상상태 없음", abnormalityManager.ActiveAbnormalities.Count == 0);
            Verify("리스폰: 이동 가능", actionState.CanMove);
            Verify("리스폰: 스킬 사용 가능", actionState.CanUseSkills);

            lastRunPassed = failedChecks == 0;
            AppendLine(lastRunPassed
                ? "=== Verification Passed ==="
                : $"=== Verification Failed: {failedChecks}/{totalChecks} checks failed ===");

            lastReport = reportBuilder.ToString();
            Debug.Log(lastReport);
            isRunning = false;
        }

        [Rpc(SendTo.Server)]
        private void RequestRespawnRpc()
        {
            if (networkController == null)
                return;

            networkController.Respawn();
        }

        private void ResolveReferences()
        {
            if (abnormalityManager == null)
                abnormalityManager = GetComponent<AbnormalityManager>();
            if (actionState == null)
                actionState = GetComponent<PlayerActionState>();
            if (networkController == null)
                networkController = GetComponent<PlayerNetworkController>();
        }

        private void LoadDefaultAssetsIfNeeded()
        {
#if UNITY_EDITOR
            if (stunData == null)
            {
                stunData = AssetDatabase.LoadAssetAtPath<AbnormalityData>("Assets/_Game/Data/Abnormalities/Data_Abnormality_Player_Stun.asset");
            }

            if (silenceData == null)
            {
                silenceData = AssetDatabase.LoadAssetAtPath<AbnormalityData>("Assets/_Game/Data/Abnormalities/Data_Abnormality_Player_Silence.asset");
            }
#endif
        }

        private void Verify(string label, bool condition)
        {
            totalChecks++;
            if (!condition)
            {
                failedChecks++;
            }

            AppendLine($"{(condition ? "[PASS]" : "[FAIL]")} {label}");
        }

        private void AppendLine(string text)
        {
            if (reportBuilder.Length > 0)
            {
                reportBuilder.AppendLine();
            }

            reportBuilder.Append(text);
        }

        private bool ShouldEnableRunner()
        {
#if UNITY_EDITOR
            return true;
#else
            return Debug.isDebugBuild;
#endif
        }
    }
}