using System.Collections;
using System.Collections.Generic;
using AibisDream.FixSystem;
using AibisDream;
using Yarn.Unity;

namespace AibisDream.MiniGame.Language
{
    /// <summary>
    /// 表达系统的 Yarn 命令接口（原语言系统）
    /// </summary>
    public static class LanguageYarnCommand
    {
        private static AibisDream.ExpressionManager ExpressionManager => FixSystemCenter.SystemDic.Get<AibisDream.ExpressionManager>();

        private static bool TryGetPresentation(out LogReleasePresentationController presentation)
        {
            presentation = ExpressionManager != null
                ? ExpressionManager.LogReleasePresentation
                : null;
            if (presentation != null)
                return true;

            UnityEngine.Debug.LogError(
                "[LanguageYarnCommand] LogReleasePresentationController 未找到；演出命令安全结束。");
            return false;
        }

        /// <summary>
        /// 启动表达粒子系统（在打开视图后调用），等待火山表达panel播完再返回。
        /// 流程：若有上一轮则先淡出字与连线 → 再淡入火山释放 log → 再启动新一轮并等表达 panel 就绪。
        /// 注意：Yarn Spinner 2.x 对同名 <see cref="YarnCommand"/> 重载支持不可靠，只保留一个注册入口，用可选参数区分 3/4 参调用。
        /// <<start_expression "哈哈|嘿嘿|呵呵" "我很害怕" "ExpressionCompleted">>
        /// <<start_expression "哈哈|嘿嘿|呵呵" "我很害怕" "ExpressionCompleted" 24>>
        /// （第四项为「非目标」候选粒子总数，候选池 = 目标句字数 + 该值；不写第四项则用 Inspector 的 Candidate Count）
        /// </summary>
        /// <param name="anxietyPhrasesStr">干扰短句（笑话等），用 | 分隔，用于非目标粒子字符池，如："哈哈|嘿嘿|呵呵"</param>
        /// <param name="targetSentence">目标句子</param>
        /// <param name="completionNode">完成时触发的对话节点（可空字符串）</param>
        /// <param name="nonTargetParticleTotal">非目标候选粒子总数；&lt;0 表示使用 Inspector 默认</param>
        [YarnCommand("start_expression")]
        public static IEnumerator StartExpression(
            string anxietyPhrasesStr,
            string targetSentence,
            string completionNode = "",
            float nonTargetParticleTotal = -1f)
        {
            return RunStartExpression(
                anxietyPhrasesStr,
                targetSentence,
                completionNode ?? "",
                UnityEngine.Mathf.RoundToInt(nonTargetParticleTotal));
        }

        private static IEnumerator RunStartExpression(string anxietyPhrasesStr, string targetSentence, string completionNode, int nonTargetParticleTotal)
        {
            if (ExpressionManager == null)
            {
                UnityEngine.Debug.LogError("ExpressionManager 未找到！请确保场景中有 ExpressionManager 组件。");
                yield break;
            }

            string[] phrases = null;
            if (!string.IsNullOrEmpty(anxietyPhrasesStr))
            {
                phrases = anxietyPhrasesStr.Split('|');
                for (int i = 0; i < phrases.Length; i++)
                {
                    phrases[i] = phrases[i].Trim();
                }
            }

            // 先清理上一轮演出，再淡出旧文字/连线并恢复 Log 操作界面。
            yield return ExpressionManager.PreparePresentationForNextRound();
            yield return ExpressionManager.FadeOutParticlesBeforeNewRound(0f);
            yield return ExpressionManager.EnsureReleaseLogFadedIn(1f);
            ExpressionManager.StartSystem(phrases, targetSentence, completionNode, nonTargetParticleTotal);
            yield return ExpressionManager.WaitUntilExpressionFlowReady();
        }

        /// <summary>
        /// 关闭表达系统
        /// <<close_expression>>
        /// </summary>
        [YarnCommand("close_expression")]
        public static void CloseExpression()
        {
            if (ExpressionManager == null)
            {
                UnityEngine.Debug.LogError("ExpressionManager 未找到！");
                return;
            }

            ExpressionManager.CloseView();
        }

        /// <summary>
        /// 重置表达系统（使用当前配置）
        /// <<reset_expression>>
        /// 或
        /// <<reset_expression false>> // 不播放入场动画
        /// </summary>
        /// <param name="playEntranceEffect">是否播放入场效果</param>
        [YarnCommand("reset_expression")]
        public static void ResetExpression(bool playEntranceEffect = true)
        {
            if (ExpressionManager == null)
            {
                UnityEngine.Debug.LogError("ExpressionManager 未找到！");
                return;
            }

            ExpressionManager.ResetSystem(playEntranceEffect);
        }

        /// <summary>
        /// 触发聚焦稳定化（从文字飘动保持态 → 概率递增 → 文字锁定 → 排列），等待全流程完成后返回
        /// <<resolve_expression_focus>>
        /// </summary>
        [YarnCommand("resolve_expression_focus")]
        public static IEnumerator ResolveExpressionFocus()
        {
            if (ExpressionManager == null)
            {
                UnityEngine.Debug.LogError("ExpressionManager 未找到！");
                yield break;
            }
            yield return ExpressionManager.StartCoroutine(ExpressionManager.ResolveFocusAndWait());
        }

        /// <summary>
        /// 淡入 ExpressionManager 的 Sprite 图片
        /// <<expression_sprite_fade_in>>
        /// <<expression_sprite_fade_in 1.5>>
        /// </summary>
        /// <param name="duration">淡入时长（秒），默认 1</param>
        [YarnCommand("expression_sprite_fade_in")]
        public static IEnumerator ExpressionSpriteFadeIn(float duration = 1f)
        {
            if (ExpressionManager == null)
            {
                UnityEngine.Debug.LogError("ExpressionManager 未找到！");
                yield break;
            }
            yield return ExpressionManager.StartCoroutine(ExpressionManager.FadeInSpriteOverlay(duration));
        }

        /// <summary>
        /// 淡出 ExpressionManager 的 Sprite 图片
        /// <<expression_sprite_fade_out>>
        /// <<expression_sprite_fade_out 1.5>>
        /// </summary>
        /// <param name="duration">淡出时长（秒），默认 1</param>
        [YarnCommand("expression_sprite_fade_out")]
        public static IEnumerator ExpressionSpriteFadeOut(float duration = 1f)
        {
            if (ExpressionManager == null)
            {
                UnityEngine.Debug.LogError("ExpressionManager 未找到！");
                yield break;
            }
            yield return ExpressionManager.StartCoroutine(ExpressionManager.FadeOutSpriteOverlay(duration));
        }

        /// <summary>
        /// Glitch 噪波过渡，等待完成后再继续下一步。
        /// <<glitch_transition 0.95 2>>       -- 从 0 到 0.95，2 秒
        /// <<glitch_transition 0.95>>         -- 立即到 0.95（duration 默认 0）
        /// <<glitch_transition 0.3 0.45 1>>   -- 从 0.3 到 0.45，1 秒
        /// </summary>
        [YarnCommand("glitch_transition")]
        public static IEnumerator GlitchTransition(float to, float duration = 0f)
        {
            if (ExpressionManager == null)
            {
                UnityEngine.Debug.LogError("ExpressionManager 未找到！");
                yield break;
            }
            yield return ExpressionManager.StartCoroutine(ExpressionManager.TransitionGlitchAndWait(to, duration));
        }

        [YarnCommand("expression_memory_begin")]
        public static IEnumerator ExpressionMemoryBegin(
            string memoryKey,
            string preset,
            float fadeDuration = -1f,
            float pushSpeed = -1f,
            float horizontalSpeed = -1f,
            bool preserveGlitch = false)
        {
            if (ExpressionManager == null)
            {
                UnityEngine.Debug.LogError("ExpressionManager 未找到！");
                yield break;
            }
            yield return ExpressionManager.StartCoroutine(
                ExpressionManager.BeginExpressionMemory(
                    memoryKey,
                    preset,
                    fadeDuration,
                    pushSpeed,
                    horizontalSpeed,
                    preserveGlitch));
        }

        /// <summary>
        /// 显式淡入火山脸，并等待淡入完成。
        /// <<expression_face_fade_in 0.45>>
        /// </summary>
        [YarnCommand("expression_face_fade_in")]
        public static IEnumerator ExpressionFaceFadeIn(float duration = 0.45f)
        {
            if (!TryGetPresentation(out LogReleasePresentationController presentation))
                yield break;
            yield return ExpressionManager.StartCoroutine(
                presentation.BeginFaceEntry(duration));
        }

        [YarnCommand("expression_lie_begin")]
        public static IEnumerator ExpressionLieBegin(string keyword, string preset)
        {
            if (ExpressionManager == null)
            {
                UnityEngine.Debug.LogError("ExpressionManager 未找到！");
                yield break;
            }
            yield return ExpressionManager.StartCoroutine(
                ExpressionManager.BeginExpressionLie(keyword, preset));
        }

        [YarnCommand("expression_lie_break")]
        public static IEnumerator ExpressionLieBreak()
        {
            if (ExpressionManager == null)
            {
                UnityEngine.Debug.LogError("ExpressionManager 未找到！");
                yield break;
            }
            yield return ExpressionManager.StartCoroutine(ExpressionManager.BreakExpressionLie());
        }

        [YarnCommand("expression_truth_reveal")]
        public static IEnumerator ExpressionTruthReveal()
        {
            if (ExpressionManager == null)
            {
                UnityEngine.Debug.LogError("ExpressionManager 未找到！");
                yield break;
            }
            yield return ExpressionManager.StartCoroutine(ExpressionManager.RevealExpressionTruth());
        }

        // 以下命令是一动作一命令。非 IEnumerator 命令只启动效果，节拍由 Yarn 的 wait 控制。

        [YarnCommand("expression_lie_prepare")]
        public static void ExpressionLiePrepare(float freezeDuration, float noiseTarget)
        {
            if (TryGetPresentation(out LogReleasePresentationController presentation))
                presentation.PrepareLieVisuals(freezeDuration, noiseTarget);
        }

        [YarnCommand("expression_truth_squeeze")]
        public static void ExpressionTruthSqueeze(float duration, float jitter, float alpha)
        {
            if (TryGetPresentation(out LogReleasePresentationController presentation))
                presentation.SqueezeTruthCharacters(duration, jitter, alpha);
        }

        [YarnCommand("expression_lie_show")]
        public static void ExpressionLieShow(string keyword, float duration, float characterSpacing)
        {
            if (TryGetPresentation(out LogReleasePresentationController presentation))
                presentation.ShowLieKeyword(keyword, duration, characterSpacing);
        }

        [YarnCommand("expression_scanline")]
        public static void ExpressionScanline(float duration, bool stalled)
        {
            if (TryGetPresentation(out LogReleasePresentationController presentation))
                presentation.PlayScreenScanline(duration, stalled);
        }

        [YarnCommand("expression_system_message")]
        public static void ExpressionSystemMessage(string value, string style, float fadeDuration)
        {
            if (TryGetPresentation(out LogReleasePresentationController presentation))
                presentation.ShowSystemMessage(value, style, fadeDuration);
        }

        [YarnCommand("expression_system_message_hide")]
        public static void ExpressionSystemMessageHide(float fadeDuration)
        {
            if (TryGetPresentation(out LogReleasePresentationController presentation))
                presentation.HideSystemMessage(fadeDuration);
        }

        [YarnCommand("expression_lie_crack_begin")]
        public static void ExpressionLieCrackBegin(float lieAlpha)
        {
            if (TryGetPresentation(out LogReleasePresentationController presentation))
                presentation.BeginLieCracking(lieAlpha);
        }

        [YarnCommand("expression_screen_dim")]
        public static void ExpressionScreenDim(float alpha, float riseDuration, float fallDuration)
        {
            if (TryGetPresentation(out LogReleasePresentationController presentation))
                presentation.PlayScreenDim(alpha, riseDuration, fallDuration);
        }

        [YarnCommand("expression_memory_jolt")]
        public static void ExpressionMemoryJolt(float offset, float duration, float tear)
        {
            if (TryGetPresentation(out LogReleasePresentationController presentation))
                presentation.PlayMemoryJolt(offset, duration, tear);
        }

        [YarnCommand("expression_truth_leak")]
        public static IEnumerator ExpressionTruthLeak(string fragment, float duration)
        {
            if (!TryGetPresentation(out LogReleasePresentationController presentation))
                yield break;
            yield return ExpressionManager.StartCoroutine(
                presentation.LeakTruthFragment(fragment, duration));
        }

        [YarnCommand("expression_lie_shuffle")]
        public static void ExpressionLieShuffle(
            string characterPool,
            float duration,
            float interval)
        {
            if (TryGetPresentation(out LogReleasePresentationController presentation))
                presentation.StartLieCharacterShuffle(characterPool, duration, interval);
        }

        /// <summary>
        /// 演员大字闪现（阻塞）：抖动的粒子字瞬间隐藏，屏幕中央出现白色大字（红青色散双影+急速缩放），
        /// 停顿 holdDuration 秒后恢复粒子字抖动。
        /// <<expression_actor_flash "没问题" 0.6 10.5 1.15 1.60 0.03 0.22 0.5 0.2>>
        /// </summary>
        [YarnCommand("expression_actor_flash")]
        public static IEnumerator ExpressionActorFlash(
            string text,
            float holdDuration = 0.6f,
            float fontSize = 10.5f,
            float settledScale = -1f,
            float punchScale = -1f,
            float chromaDistance = -1f,
            float chromaAlpha = -1f,
            float impact = -1f,
            float glitchPeak = -1f)
        {
            if (!TryGetPresentation(out LogReleasePresentationController presentation))
                yield break;
            yield return ExpressionManager.StartCoroutine(
                presentation.FlashActorLie(
                    text,
                    holdDuration,
                    fontSize,
                    settledScale,
                    punchScale,
                    chromaDistance,
                    chromaAlpha,
                    impact,
                    glitchPeak));
        }

        /// <summary>
        /// 老虎机换字（非阻塞，节拍由 Yarn wait 控制）：聚焦字在 duration 内只从 charPool 里疯狂换字。
        /// <<expression_actor_slot "没问题冇" 5 0.05 14>>
        /// </summary>
        [YarnCommand("expression_actor_slot")]
        public static void ExpressionActorSlot(
            string charPool,
            float duration,
            float interval = 0.05f,
            float fontSize = 14f)
        {
            if (TryGetPresentation(out LogReleasePresentationController presentation))
                presentation.StartActorSlotMachine(charPool, duration, interval, fontSize);
        }

        /// <summary>
        /// 将 Glitch、记忆冲击与画面推近缓慢堆到峰值，停住后保持峰值，等待后续硬切。
        /// <<expression_overload_peak 0.75 0.22 1.10 1 1>>
        /// </summary>
        [YarnCommand("expression_overload_peak")]
        public static IEnumerator ExpressionOverloadPeak(
            float riseDuration = 0.75f,
            float holdDuration = 0.22f,
            float zoom = 1.10f,
            float glitchPeak = 1f,
            float impact = 1f)
        {
            if (!TryGetPresentation(out LogReleasePresentationController presentation))
                yield break;
            yield return ExpressionManager.StartCoroutine(
                presentation.BuildActorOverloadPeak(
                    riseDuration,
                    holdDuration,
                    zoom,
                    glitchPeak,
                    impact));
        }

        /// <summary>
        /// 单字/短词满屏重击，并等待该拍结束。
        /// <<expression_actor_word_hit "没" 0.16 18 1.55>>
        /// </summary>
        [YarnCommand("expression_actor_word_hit")]
        public static IEnumerator ExpressionActorWordHit(
            string text,
            float holdDuration = 0.16f,
            float fontSize = 18f,
            float punchScale = 1.55f)
        {
            if (!TryGetPresentation(out LogReleasePresentationController presentation))
                yield break;
            yield return ExpressionManager.StartCoroutine(
                presentation.PlayActorWordHit(text, holdDuration, fontSize, punchScale));
        }

        /// <summary>
        /// 单列词组严格裁在表情屏内，像字幕一样无缝向下滚动。
        /// <<expression_actor_scroll "没问题|冇问题|帽问题" 1.8 0.85 0.45 5.2>>
        /// </summary>
        [YarnCommand("expression_actor_scroll")]
        public static IEnumerator ExpressionActorScroll(
            string phraseList,
            float scrollDuration = 1.8f,
            float loopDuration = 0.85f,
            float holdDuration = 0.45f,
            float fontSize = 5.2f)
        {
            if (!TryGetPresentation(out LogReleasePresentationController presentation))
                yield break;
            yield return ExpressionManager.StartCoroutine(
                presentation.ScrollActorLies(
                    phraseList,
                    scrollDuration,
                    loopDuration,
                    holdDuration,
                    fontSize));
        }

        [YarnCommand("expression_memory_cut")]
        public static void ExpressionMemoryCut()
        {
            if (TryGetPresentation(out LogReleasePresentationController presentation))
                presentation.CutMemoryAndGlitchImmediate();
        }

        [YarnCommand("expression_truth_snap")]
        public static void ExpressionTruthSnap(float peripheral, float calmRadius)
        {
            if (TryGetPresentation(out LogReleasePresentationController presentation))
                presentation.SnapTruthImmediate(peripheral, calmRadius);
        }

        [YarnCommand("expression_glitch_pulse")]
        public static void ExpressionGlitchPulse(float peak, float riseDuration, float fallDuration)
        {
            if (TryGetPresentation(out LogReleasePresentationController presentation))
                presentation.PlayGlitchPulse(peak, riseDuration, fallDuration);
        }

        [YarnCommand("expression_truth_blackout")]
        public static IEnumerator ExpressionTruthBlackout(float duration, float alpha)
        {
            if (!TryGetPresentation(out LogReleasePresentationController presentation))
                yield break;
            yield return ExpressionManager.StartCoroutine(
                presentation.HoldTruthBlackout(duration, alpha));
        }

        [YarnCommand("expression_lie_split")]
        public static void ExpressionLieSplit(
            float duration,
            float distanceRatio,
            float stretchX,
            float squashY)
        {
            if (TryGetPresentation(out LogReleasePresentationController presentation))
            {
                presentation.SplitLieVisual(
                    duration,
                    distanceRatio,
                    stretchX,
                    squashY);
            }
        }

        [YarnCommand("expression_truth_flash")]
        public static void ExpressionTruthFlash(
            float alpha,
            float riseDuration,
            float holdDuration,
            float fallDuration)
        {
            if (TryGetPresentation(out LogReleasePresentationController presentation))
            {
                presentation.PlayTruthFlash(
                    alpha,
                    riseDuration,
                    holdDuration,
                    fallDuration);
            }
        }

        [YarnCommand("expression_memory_brightness_pulse")]
        public static void ExpressionMemoryBrightnessPulse(
            float amount,
            float riseDuration,
            float fallDuration)
        {
            if (TryGetPresentation(out LogReleasePresentationController presentation))
                presentation.PlayMemoryBrightnessPulse(amount, riseDuration, fallDuration);
        }

        [YarnCommand("expression_memory_tear")]
        public static void ExpressionMemoryTear(float peak, float duration)
        {
            if (TryGetPresentation(out LogReleasePresentationController presentation))
                presentation.PlayMemoryTear(peak, duration);
        }

        [YarnCommand("expression_face_dip")]
        public static void ExpressionFaceDip(float duration, float ratio)
        {
            if (TryGetPresentation(out LogReleasePresentationController presentation))
                presentation.PlayFaceDip(duration, ratio);
        }

        [YarnCommand("expression_truth_release")]
        public static void ExpressionTruthRelease(float alphaDuration)
        {
            if (TryGetPresentation(out LogReleasePresentationController presentation))
                presentation.ReleaseTruthCharacters(alphaDuration);
        }

        [YarnCommand("expression_truth_resolve")]
        public static IEnumerator ExpressionTruthResolve(
            float duration,
            float peripheral,
            float calmRadius)
        {
            if (!TryGetPresentation(out LogReleasePresentationController presentation))
                yield break;
            yield return ExpressionManager.StartCoroutine(
                presentation.ResolveTruthCharacters(duration, peripheral, calmRadius));
        }

        [YarnCommand("expression_memory_end")]
        public static IEnumerator ExpressionMemoryEnd()
        {
            if (ExpressionManager == null)
            {
                UnityEngine.Debug.LogError("ExpressionManager 未找到！");
                yield break;
            }
            yield return ExpressionManager.StartCoroutine(ExpressionManager.EndExpressionMemory());
        }

        [YarnCommand("expression_truth_impact")]
        public static void ExpressionTruthImpact()
        {
            if (ExpressionManager == null)
            {
                UnityEngine.Debug.LogError("ExpressionManager 未找到！");
                return;
            }
            ExpressionManager.ImpactExpressionTruth();
        }

        // /// <summary>
        // /// Glitch 噪波过渡（指定起止值），等待完成后再继续下一步。
        // /// </summary>
        // [YarnCommand("glitch_transition")]
        // public static IEnumerator GlitchTransition(float from, float to, float duration)
        // {
        //     if (ExpressionManager == null)
        //     {
        //         UnityEngine.Debug.LogError("ExpressionManager 未找到！");
        //         yield break;
        //     }
        //     yield return ExpressionManager.StartCoroutine(ExpressionManager.TransitionGlitchAndWait(from, to, duration));
        // }
    }
}