using System;
using UnityEngine;

namespace AibisDream
{
    /// <summary>
    /// Central tuning for Peipei eye-module visuals. Edit on EyeManager (EyeSystem).
    /// </summary>
    [Serializable]
    public class EyeVisualSettings
    {
        [Header("Color Reveal")]
        [Tooltip("Unfocused / gray state (0 = gray, 1 = full color).")]
        [Range(0f, 1f)] public float colorRevealMin;

        [Tooltip("Focused / imagined color state.")]
        [Range(0f, 1f)] public float colorRevealMax = 1f;

        [Header("Transition Duration (seconds)")]
        public float imagineColorDuration = 1f;
        public float cannotImagineDuration = 1f;
        public float eyeDisorderDuration = 2f;
        public float canSeeColorDuration = 1f;
        public float targetSwitchDuration = 1f;

        [Header("Blur")]
        [Tooltip("Blur when unfocused or module idle.")]
        [Range(0f, 1f)] public float idleBlurAmount = 1f;

        [Tooltip("Blur when focused and sharp.")]
        [Range(0f, 1f)] public float focusedBlurAmount;

        [Tooltip("Shader _BlurSize when blur is active.")]
        [Range(0f, 0.02f)] public float blurSize = 0.008f;

        [Header("Color Sweep (shader)")]
        [Tooltip("Width of the directional color sweep during ColorIn/FadeOut.")]
        [Range(0.001f, 1f)] public float revealWidth = 0.18f;

        [Tooltip("Sweep direction in radians (0 = left-to-right).")]
        [Range(0f, 6.28318f)] public float revealRotation;

        [Range(0f, 1f)] public float revealNoise = 0.08f;

        [Header("Distortion Pulse")]
        [Tooltip("Peak _DistortAmount during ColorIn / FadeOut.")]
        [Range(0f, 0.08f)] public float colorPulseDistortion = 0.035f;

        [Header("Wrong Color (Eye Disorder)")]
        public Color wrongColor = new(1f, 0.16f, 0.08f, 1f);

        [Header("HSV")]
        [Range(0f, 2f)] public float hsvSaturation = 1f;

        [Header("Glitch / Memory Wave")]
        public float glitchInDuration = 1f;
        public float roundWaveInDuration = 2f;
        public float roundWaveOutDuration = 0.5f;
        public float glitchOutDuration = 0.5f;

        [Header("Viewport Overlay (no post-processing)")]
        public bool enableViewportOverlay = true;

        [Tooltip("Horizontal half-size of the resting sight almond (left/right darkness).")]
        [Range(0.22f, 0.58f)] public float eyeWidth = 0.46f;

        [Tooltip("Vertical half-size of the resting sight almond (top/bottom darkness).")]
        [Range(0.15f, 0.72f)] public float eyeHeight = 0.28f;

        [Tooltip("Softness of the elliptical sight boundary.")]
        [Range(0.001f, 0.2f)] public float edgeSoftness = 0.022f;

        [Tooltip("Off by default so you can tune the sight without blinking.")]
        public bool autoBlink;

        public Vector2 autoBlinkInterval = new(8f, 15f);
        public float blinkCloseDuration = 0.09f;
        public float blinkOpenDuration = 0.14f;

        [Header("Transition Blink")]
        [Tooltip("聚焦：单次眨眼开眼到该进度时触发变清晰（0=刚睁眼，1=完全睁开）。")]
        [Range(0f, 1f)] public float focusEffectAtBlinkOpen = 0.85f;

        [Tooltip("想象：两次眨眼之间的间隔（秒）。")]
        public float imagineBlinkGap = 0.04f;

        [Tooltip("想象：第二次眨眼开眼到该进度时触发上色。")]
        [Range(0f, 1f)] public float imagineEffectAtBlinkOpen = 1f;

        public float GetDurationForState(EyeSystem.EyeColorState state) => state switch
        {
            EyeSystem.EyeColorState.CanImagineColor => imagineColorDuration,
            EyeSystem.EyeColorState.CannotImagineColor => cannotImagineDuration,
            EyeSystem.EyeColorState.EyeDisorder => eyeDisorderDuration,
            EyeSystem.EyeColorState.CanSeeColor => canSeeColorDuration,
            _ => imagineColorDuration
        };
    }
}