#target photoshop

/*
    Photoshop Bake Layer Style 1.5 (PS 2026 兼容版)

    功能：
    1. 校验：当前是否选中了图层；
    2. 校验：当前图层是否包含可转换的图层样式；
    3. 显示确认窗口；
    4. 确认后复制当前图层作为工作副本；
    5. 隐藏原图层，将其保留为备份；
    6. 在工作副本上执行"图层 > 图层样式 > 创建图层"；
    7. 若命令失败，自动回滚到脚本执行前的状态。
*/

(function () {
    var DIALOG_TITLE = "创建图层样式";
    var DIALOG_MESSAGE = "是否烘焙图层样式到单独图层？";

    if (app.documents.length === 0) {
        alert("请先打开文档并选择一个带有图层样式的图层。", DIALOG_TITLE, true);
        return;
    }

    // ========== 校验 1：当前是否选中了图层 ==========
    function hasSelectedLayer() {
        try {
            var ref = new ActionReference();
            ref.putProperty(stringIDToTypeID("property"), stringIDToTypeID("targetLayers"));
            ref.putEnumerated(stringIDToTypeID("document"), stringIDToTypeID("ordinal"), stringIDToTypeID("targetEnum"));
            var desc = executeActionGet(ref);
            if (desc.hasKey(stringIDToTypeID("targetLayers"))) {
                var list = desc.getList(stringIDToTypeID("targetLayers"));
                return list.count > 0;
            }
            return false;
        } catch (e) {
            return false;
        }
    }

    // ========== 校验 2：当前图层是否包含图层样式 ==========
    function hasLayerStyle() {
        try {
            var ref = new ActionReference();
            ref.putProperty(stringIDToTypeID("property"), stringIDToTypeID("layerEffects"));
            ref.putEnumerated(stringIDToTypeID("layer"), stringIDToTypeID("ordinal"), stringIDToTypeID("targetEnum"));
            var desc = executeActionGet(ref);

            if (!desc.hasKey(stringIDToTypeID("layerEffects"))) {
                return false;
            }

            // layerEffects 键存在不代表有样式，需检查内部是否有实际效果
            var fxDesc = desc.getObjectValue(stringIDToTypeID("layerEffects"));
            var effectKeys = [
                "dropShadow",
                "innerShadow",
                "outerGlow",
                "innerGlow",
                "bevelEmboss",
                "chromeFX",
                "solidFill",
                "gradientFill",
                "patternFill",
                "frameFX",
                "frameFXStyle"
            ];
            for (var i = 0; i < effectKeys.length; i++) {
                if (fxDesc.hasKey(stringIDToTypeID(effectKeys[i]))) {
                    return true;
                }
            }
            return false;
        } catch (e) {
            return false;
        }
    }

    // ========== 执行前置校验（缺一不可） ==========
    if (!hasSelectedLayer()) {
        alert("当前未选中任何图层，请先选择一个图层后再执行。", DIALOG_TITLE, true);
        return;
    }

    if (!hasLayerStyle()) {
        alert("当前图层没有图层样式，无法烘焙。\n请先为图层添加样式（如投影、描边、外发光等）。", DIALOG_TITLE, true);
        return;
    }

    // ========== 确认对话框 ==========
    var dialog = new Window("dialog", DIALOG_TITLE);
    dialog.orientation = "column";
    dialog.alignChildren = ["fill", "center"];
    dialog.spacing = 16;
    dialog.margins = 20;

    var message = dialog.add("statictext", undefined, DIALOG_MESSAGE);
    message.alignment = "center";

    var buttonGroup = dialog.add("group");
    buttonGroup.orientation = "row";
    buttonGroup.alignment = "right";
    buttonGroup.spacing = 10;

    buttonGroup.add("button", undefined, "取消", { name: "cancel" });
    var confirmButton = buttonGroup.add(
        "button",
        undefined,
        "确认",
        { name: "ok" }
    );
    dialog.defaultElement = confirmButton;

    dialog.center();

    if (dialog.show() !== 1) {
        return;
    }

    // ========== 核心执行逻辑（已验证可运行） ==========
    var documentReference = app.activeDocument;
    var originalLayer = documentReference.activeLayer;
    var originalName = originalLayer.name;
    var initialHistoryState = documentReference.activeHistoryState;

    try {
        var workingLayer = originalLayer.duplicate();
        originalLayer.visible = false;

        workingLayer.name = originalName + "_烘焙";
        workingLayer.visible = true;
        selectLayerExclusively(documentReference, workingLayer);

        createLayersFromLayerStyle();
    } catch (error) {
        try {
            documentReference.activeHistoryState = initialHistoryState;
        } catch (rollbackError) {
            try {
                originalLayer.visible = true;
                documentReference.activeLayer = originalLayer;
            } catch (restoreError) {
                // 保留最初的 Photoshop 错误信息。
            }
        }

        var details = error.message;
        if (error.number !== undefined) {
            details += "\n错误编号：" + error.number;
        }
        if (error.line !== undefined) {
            details += "\n脚本行号：" + error.line;
        }

        alert(
            "创建图层样式失败。\n\n" +
                details +
                "\n\n请确认当前图层包含可转换的图层样式。",
            DIALOG_TITLE,
            true
        );
    }

    function selectLayerExclusively(documentReference, layerReference) {
        try {
            var descriptor = new ActionDescriptor();
            var reference = new ActionReference();
            reference.putIdentifier(
                stringIDToTypeID("layer"),
                layerReference.id
            );
            descriptor.putReference(
                stringIDToTypeID("null"),
                reference
            );
            descriptor.putBoolean(
                stringIDToTypeID("makeVisible"),
                false
            );
            executeAction(
                stringIDToTypeID("select"),
                descriptor,
                DialogModes.NO
            );
        } catch (selectError) {
            documentReference.activeLayer = layerReference;
        }
    }

    function createLayersFromLayerStyle() {
        // 使用 ScriptingListener 录制的标准代码：
        // 用 Mk (Make) 命令，将当前图层的 Lefx (Layer Effects) 属性创建为新图层。
        var idMk = charIDToTypeID("Mk  ");
        var desc = new ActionDescriptor();

        var idnull = charIDToTypeID("null");
        var ref1 = new ActionReference();
        var idLyr = charIDToTypeID("Lyr ");
        ref1.putClass(idLyr);
        desc.putReference(idnull, ref1);

        var idUsng = charIDToTypeID("Usng");
        var ref2 = new ActionReference();
        var idPrpr = charIDToTypeID("Prpr");
        var idLefx = charIDToTypeID("Lefx");
        ref2.putProperty(idPrpr, idLefx);
        var idLyr2 = charIDToTypeID("Lyr ");
        var idOrdn = charIDToTypeID("Ordn");
        var idTrgt = charIDToTypeID("Trgt");
        ref2.putEnumerated(idLyr2, idOrdn, idTrgt);
        desc.putReference(idUsng, ref2);

        executeAction(idMk, desc, DialogModes.NO);
    }
})();