using UnityEngine;
using UnityEditor;
public class CombineModelEffectMid : ShaderGUI
{
    Material target;
    MaterialEditor editor;
    MaterialProperty[] properties;
    static GUIContent staticLabel = new GUIContent();
    bool checkFresnel = false;
    bool checkOutline = false;
    public override void OnGUI(MaterialEditor materialEditor, MaterialProperty[] properties)
    {
        // base.OnGUI(materialEditor, properties);
        this.target = materialEditor.target as Material;
        this.editor = materialEditor;
        this.properties = properties;
        GUILayout.Label("本特效材质至多支持两个UVRoll效果(同UVRoll纹理)+两个Scan效果", EditorStyles.boldLabel);
        GUILayout.Space(20);
        DoEffectMask();
        DoUVRoll();
        DoScan();
        DoFresnel();
        DoOutline();
    }
    // uvroll
    void DoUVRoll()
    {
        GUILayout.Label("UVRoll 效果参数", EditorStyles.boldLabel);
        // 检查参数，优化editor视图
        EditorGUI.BeginChangeCheck();
        MaterialProperty uvRollTex = FindProperty("_UVRollTex");

        editor.TexturePropertySingleLine(
            MakeLabel(uvRollTex, "(RGBA)"), uvRollTex);
        editor.TextureScaleOffsetProperty(uvRollTex);
        
        if(uvRollTex.textureValue != null)
        {
            MaterialProperty uvrollColor1 = FindProperty("_UVRollColor1");
            MaterialProperty uvrollColor2 = FindProperty("_UVRollColor2");
            MaterialProperty uvrollSpeed = FindProperty("_UVRollSpeed");
            MaterialProperty uvrollIntensity1 = FindProperty("_UVRollIntensity1");
            MaterialProperty uvrollIntensity2 = FindProperty("_UVRollIntensity2");
            EditorGUI.indentLevel += 1;
            editor.ShaderProperty(uvrollColor1, MakeLabel(uvrollColor1));
            editor.ShaderProperty(uvrollColor2, MakeLabel(uvrollColor2));
            GUILayout.Label("整合UVRoll速度,x y代表特效1的u v速度,z w同理", EditorStyles.boldLabel);
            editor.ShaderProperty(uvrollSpeed, MakeLabel(uvrollSpeed));
            GUILayout.Space(-10);
            editor.ShaderProperty(uvrollIntensity1, MakeLabel(uvrollIntensity1));
            editor.ShaderProperty(uvrollIntensity2, MakeLabel(uvrollIntensity2));
            EditorGUI.indentLevel -= 1;
        }
        if (EditorGUI.EndChangeCheck()) {
            // SetKeyword("_ROLLADD_MAP", uvRollTex.textureValue);
		}
        GUILayout.Space(20);
        DoUVRollNoise();
    }

    void DoUVRollNoise()
    {
        GUILayout.Label("UVRoll效果扰动纹理", EditorStyles.boldLabel);
        EditorGUI.BeginChangeCheck();
        MaterialProperty noise = FindProperty("_UVRollNoiseTex");
        editor.TexturePropertySingleLine(MakeLabel(noise), noise);
        if(noise.textureValue != null)
        {
            MaterialProperty uvrollNoiseSpeed = FindProperty("_UVRollNoiseSpeed");
            MaterialProperty uvrollNoiseIntensity = FindProperty("_UVRollNoiseIntensity");
            EditorGUI.indentLevel += 1;
            GUILayout.Label("整合Noise速度,x y代表特效1的u v速度,z w同理", EditorStyles.boldLabel);
            editor.ShaderProperty(uvrollNoiseSpeed, MakeLabel(uvrollNoiseSpeed));
            GUILayout.Space(-10);
            editor.ShaderProperty(uvrollNoiseIntensity, MakeLabel(uvrollNoiseIntensity));
            EditorGUI.indentLevel -= 1;
        }
        if (EditorGUI.EndChangeCheck()) {
			SetKeyword("_ROLLADD_NOISE_MASK_MAP", noise.textureValue);
		}
        GUILayout.Space(20);
    }

    void DoEffectMask()
    {
        GUILayout.Label("特效遮罩(每个特效至多两种，RG通道为UVRoll遮罩，BA通道为扫描图遮罩)", EditorStyles.boldLabel);
        EditorGUI.BeginChangeCheck();
        MaterialProperty mask = FindProperty("_EffectMaskTex");
        editor.TexturePropertySingleLine(MakeLabel(mask), mask);
        if(mask.textureValue != null)
        {
            MaterialProperty uvrollMaskSpeed = FindProperty("_UVRollMaskSpeed");
            EditorGUI.indentLevel += 1;
            GUILayout.Label("整合UVRollMask速度,x y代表特效1的u v速度,z w同理", EditorStyles.boldLabel);
            editor.ShaderProperty(uvrollMaskSpeed, MakeLabel(uvrollMaskSpeed));
            EditorGUI.indentLevel -= 1;
        }
        if (EditorGUI.EndChangeCheck()) {
			// SetKeyword("_EFFECT_MASK_MAP", mask.textureValue);
		}
    }
    // 扫描效果
    void DoScan()
    {
        GUILayout.Label("Scan扫描效果(网格纹理/扫描纹理 第一效果占用RG通道，第二效果占用BA通道)", EditorStyles.boldLabel);
        EditorGUI.BeginChangeCheck();
        MaterialProperty scan = FindProperty("_ScanTex");
        editor.TexturePropertySingleLine(
            MakeLabel(scan, "(GR通道为效果1，AB效果2)"), scan, 
            FindProperty("_ScanColor"));
        if(scan.textureValue != null)
        {
            MaterialProperty scan_gridline_st = FindProperty("_GridlineST");
            MaterialProperty scan_intensity = FindProperty("_ScanIntensity");
            MaterialProperty scan_speed = FindProperty("_ScanSpeed");
            EditorGUI.indentLevel += 1;
            GUILayout.Label("用这个网格图原先的纹理Tilling和Offset", EditorStyles.boldLabel);
            editor.ShaderProperty(scan_gridline_st, MakeLabel(scan_gridline_st));
            GUILayout.Space(-10);
            editor.ShaderProperty(scan_intensity, MakeLabel(scan_intensity));
            editor.ShaderProperty(scan_speed, MakeLabel(scan_speed));
            EditorGUI.indentLevel -= 1;
        }
        if (EditorGUI.EndChangeCheck()) {
            // SetKeyword("_SCAN_TEX", scan.textureValue);
		}
        GUILayout.Space(20);
    }
    // fresnel
    void DoFresnel()
    {
        GUILayout.Label("Fresnel外发光", EditorStyles.boldLabel);
        checkFresnel = IsKeywordEnabled("_MB_FRESNEL");
        EditorGUI.BeginChangeCheck();
        checkFresnel = EditorGUILayout.Toggle("Enable Fresnel", checkFresnel);
        if(checkFresnel)
        {
            MaterialProperty fresnelColor = FindProperty("_FresnelColor");
            MaterialProperty fresnelIntensity = FindProperty("_FresnelIntensity");
            EditorGUI.indentLevel += 1;
            editor.ShaderProperty(fresnelColor, MakeLabel(fresnelColor));
            editor.ShaderProperty(fresnelIntensity, MakeLabel(fresnelIntensity));
            EditorGUI.indentLevel -= 1;
        }
        if (EditorGUI.EndChangeCheck()) {
			SetKeyword("_MB_FRESNEL", checkFresnel);
		}
        GUILayout.Space(20);
    }

    void DoOutline()
    {
        GUILayout.Label("受击描边颜色", EditorStyles.boldLabel);
        MaterialProperty outlineColor = FindProperty("_OutlineColor");
        MaterialProperty outlineIntensity = FindProperty("_OutlineIntensity");
        editor.ShaderProperty(outlineColor, MakeLabel(outlineColor));
        editor.ShaderProperty(outlineIntensity, MakeLabel(outlineIntensity));
        GUILayout.Space(20);
    }

    // 利用方法优化GUI代码结构，使得代码更容易看
    MaterialProperty FindProperty(string name)
    {
        return FindProperty(name, properties);
    }

    static GUIContent MakeLabel(string text, string tooltip = null)
    {
        staticLabel.text = text;
        staticLabel.tooltip = tooltip;
        return staticLabel;
    }

    static GUIContent MakeLabel(MaterialProperty property, string tooltip = null)
    {
        staticLabel.text = property.displayName;
        staticLabel.tooltip = tooltip;
        return staticLabel;
    }
    // 设置shader关键字
    void SetKeyword(string keyword, bool state)
    {
        if(state)
        {
            foreach(Material m in editor.targets)
            {
                m.EnableKeyword(keyword);
            }
        }
        else{
            foreach(Material m in editor.targets)
            {
                m.DisableKeyword(keyword);
            }
        }
    }
    bool IsKeywordEnabled(string keyword)
    {
        return target.IsKeywordEnabled(keyword);
    }

    void RecordAction(string label)
    {
        editor.RegisterPropertyChangeUndo(label);
    }
}