using UnityEditor;
using UnityEngine;

public static class VertexDeformationExamples
{
    [MenuItem("Tools/Vertex Deformation/Example: Tube to Plane")]
    static void Example_TubeToPlane()
    {
        var mat = Selection.activeObject as Material;
        if (mat == null)
        {
            EditorUtility.DisplayDialog("Error", "Select a material in the Project window", "OK");
            return;
        }

        VertexDeformationBuilder.Create()
            .For(mat)
            .TubeToPlane(
                p: Vector3.zero,
                r: Vector3.right,
                s: Vector3.forward,
                t: 1f)
            .Apply();
    }

    [MenuItem("Tools/Vertex Deformation/Example: Complex Pipeline")]
    static void Example_ComplexPipeline()
    {
        var mat = Selection.activeObject as Material;
        if (mat == null)
        {
            EditorUtility.DisplayDialog("Error", "Select a material in the Project window", "OK");
            return;
        }

        VertexDeformationBuilder.Create()
            .For(mat)
            .TubeToPlane(Vector3.zero, Vector3.right, Vector3.forward, 1f)
            .NormConversion(inputK: 2f, outputK: 1f, t: 1f)
            .PointAlign(
                po: new Vector3(0, 0, 0),
                pp: new Vector3(0, 1, 0),
                r: Vector3.right,
                t: 0.5f)
            .Apply();

        Debug.Log("Applied 3-step deformation pipeline to " + mat.name);
    }

    [MenuItem("Tools/Vertex Deformation/Example: Add Custom Preset")]
    static void Example_ShowHowToAddPreset()
    {
        EditorUtility.DisplayDialog("How to Add Presets",
            "1. Open VertexDeformationPresets class\n\n" +
            "2. Add a new static method:\n\n" +
            "public static void MyCustomPreset(Material mat) =>\n" +
            "    VertexDeformationBuilder.Create()\n" +
            "        .For(mat)\n" +
            "        .TubeToPlane(...)\n" +
            "        .NormConversion(...)\n" +
            "        .Apply();\n\n" +
            "3. Add a button in VertexDeformationEditorWindow:\n\n" +
            "if (GUILayout.Button(\"My Custom Preset\"))\n" +
            "    VertexDeformationPresets.MyCustomPreset(targetMaterial);",
            "OK");
    }

    [MenuItem("Tools/Vertex Deformation/Example: All Opcodes")]
    static void Example_AllOpcodes()
    {
        EditorUtility.DisplayDialog("All Available Operations",
            "TubeToPlane(p, r, s, t)\n" +
            "PlaneToTube(p, r, s, t)\n" +
            "PointAlign(po, pp, r, t)\n" +
            "AxisAlign(po, pp, r, t)\n" +
            "NormConversion(inputK, outputK, t)\n" +
            "Seal(A, k, st, t)\n" +
            "SineWaves()\n" +
            "FBM()\n\n" +
            "Custom(opcode, f0, f1, f2, f3, v0, v1, v2, v3)\n\n" +
            "Chain them with method calls:\n" +
            ".TubeToPlane(...).NormConversion(...).Apply()",
            "OK");
    }

    public static class CustomPresetIdeas
    {
        public static void CylinderToPlane(Material mat) =>
            VertexDeformationBuilder.Create()
                .For(mat)
                .TubeToPlane(Vector3.zero, Vector3.up, Vector3.right, 1f)
                .Apply();

        public static void SphereToBox(Material mat) =>
            VertexDeformationBuilder.Create()
                .For(mat)
                .NormConversion(inputK: 2f, outputK: float.PositiveInfinity, t: 1f)
                .Apply();

        public static void BoxToSphere(Material mat) =>
            VertexDeformationBuilder.Create()
                .For(mat)
                .NormConversion(inputK: float.PositiveInfinity, outputK: 2f, t: 1f)
                .Apply();

        public static void TubeUnfoldAndFlatten(Material mat) =>
            VertexDeformationBuilder.Create()
                .For(mat)
                .TubeToPlane(Vector3.zero, Vector3.right, Vector3.forward, 1f)
                .NormConversion(inputK: 2f, outputK: 1f, t: 0.5f)
                .Seal(A: 0.1f, k: 2f, st: 0.8f, t: 1f)
                .Apply();
    }
}