/*

Copyright 2010, Google Inc.
All rights reserved.

Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are
met:

    * Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
    * Redistributions in binary form must reproduce the above
copyright notice, this list of conditions and the following disclaimer
in the documentation and/or other materials provided with the
distribution.
    * Neither the name of Google Inc. nor the names of its
contributors may be used to endorse or promote products derived from
this software without specific prior written permission.

THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,           
DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY           
THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

*/

var html = "text/html";
var encoding = "UTF-8";
var ClientSideResourceManager = Packages.com.google.refine.ClientSideResourceManager;
var bundle = false;

var templatedFiles = {
    // Requests with last path segments mentioned here 
    // will get served from .vt files with the same names
    "index" : true,
    "project" : true,
    "preferences" : true
};

function registerCommands() {
    var RS = Packages.com.google.refine.RefineServlet;

    RS.registerCommand(module, "get-version", new Packages.com.google.refine.commands.GetVersionCommand());

    RS.registerCommand(module, "create-project-from-upload", new Packages.com.google.refine.commands.project.CreateProjectCommand());
    RS.registerCommand(module, "import-project", new Packages.com.google.refine.commands.project.ImportProjectCommand());
    RS.registerCommand(module, "export-project", new Packages.com.google.refine.commands.project.ExportProjectCommand());
    RS.registerCommand(module, "export-rows", new Packages.com.google.refine.commands.project.ExportRowsCommand());

    RS.registerCommand(module, "get-project-metadata", new Packages.com.google.refine.commands.project.GetProjectMetadataCommand());
    RS.registerCommand(module, "get-all-project-metadata", new Packages.com.google.refine.commands.workspace.GetAllProjectMetadataCommand());

    RS.registerCommand(module, "delete-project", new Packages.com.google.refine.commands.project.DeleteProjectCommand());
    RS.registerCommand(module, "rename-project", new Packages.com.google.refine.commands.project.RenameProjectCommand());

    RS.registerCommand(module, "get-models", new Packages.com.google.refine.commands.project.GetModelsCommand());
    RS.registerCommand(module, "get-rows", new Packages.com.google.refine.commands.row.GetRowsCommand());
    RS.registerCommand(module, "get-processes", new Packages.com.google.refine.commands.history.GetProcessesCommand());
    RS.registerCommand(module, "get-history", new Packages.com.google.refine.commands.history.GetHistoryCommand());
    RS.registerCommand(module, "get-operations", new Packages.com.google.refine.commands.history.GetOperationsCommand());
    RS.registerCommand(module, "get-columns-info", new Packages.com.google.refine.commands.column.GetColumnsInfoCommand());
    RS.registerCommand(module, "get-scatterplot", new Packages.com.google.refine.commands.browsing.GetScatterplotCommand());

    RS.registerCommand(module, "undo-redo", new Packages.com.google.refine.commands.history.UndoRedoCommand());
    RS.registerCommand(module, "apply-operations", new Packages.com.google.refine.commands.history.ApplyOperationsCommand());
    RS.registerCommand(module, "cancel-processes", new Packages.com.google.refine.commands.history.CancelProcessesCommand());

    RS.registerCommand(module, "compute-facets", new Packages.com.google.refine.commands.browsing.ComputeFacetsCommand());
    RS.registerCommand(module, "compute-clusters", new Packages.com.google.refine.commands.browsing.ComputeClustersCommand());

    RS.registerCommand(module, "edit-one-cell", new Packages.com.google.refine.commands.cell.EditOneCellCommand());
    RS.registerCommand(module, "text-transform", new Packages.com.google.refine.commands.cell.TextTransformCommand());
    RS.registerCommand(module, "mass-edit", new Packages.com.google.refine.commands.cell.MassEditCommand());
    RS.registerCommand(module, "join-multi-value-cells", new Packages.com.google.refine.commands.cell.JoinMultiValueCellsCommand());
    RS.registerCommand(module, "split-multi-value-cells", new Packages.com.google.refine.commands.cell.SplitMultiValueCellsCommand());
    RS.registerCommand(module, "fill-down", new Packages.com.google.refine.commands.cell.FillDownCommand());
    RS.registerCommand(module, "blank-down", new Packages.com.google.refine.commands.cell.BlankDownCommand());
    RS.registerCommand(module, "transpose-columns-into-rows", new Packages.com.google.refine.commands.cell.TransposeColumnsIntoRowsCommand());
    RS.registerCommand(module, "transpose-rows-into-columns", new Packages.com.google.refine.commands.cell.TransposeRowsIntoColumnsCommand());

    RS.registerCommand(module, "add-column", new Packages.com.google.refine.commands.column.AddColumnCommand());
    RS.registerCommand(module, "add-column-by-fetching-urls", new Packages.com.google.refine.commands.column.AddColumnByFetchingURLsCommand());
    RS.registerCommand(module, "remove-column", new Packages.com.google.refine.commands.column.RemoveColumnCommand());
    RS.registerCommand(module, "rename-column", new Packages.com.google.refine.commands.column.RenameColumnCommand());
    RS.registerCommand(module, "move-column", new Packages.com.google.refine.commands.column.MoveColumnCommand());
    RS.registerCommand(module, "split-column", new Packages.com.google.refine.commands.column.SplitColumnCommand());
    RS.registerCommand(module, "reorder-columns", new Packages.com.google.refine.commands.column.ReorderColumnsCommand());

    RS.registerCommand(module, "denormalize", new Packages.com.google.refine.commands.row.DenormalizeCommand());

    RS.registerCommand(module, "reconcile", new Packages.com.google.refine.commands.recon.ReconcileCommand());
    RS.registerCommand(module, "recon-match-best-candidates", new Packages.com.google.refine.commands.recon.ReconMatchBestCandidatesCommand());
    RS.registerCommand(module, "recon-mark-new-topics", new Packages.com.google.refine.commands.recon.ReconMarkNewTopicsCommand());
    RS.registerCommand(module, "recon-discard-judgments", new Packages.com.google.refine.commands.recon.ReconDiscardJudgmentsCommand());
    RS.registerCommand(module, "recon-match-specific-topic-to-cells", new Packages.com.google.refine.commands.recon.ReconMatchSpecificTopicCommand());
    RS.registerCommand(module, "recon-judge-one-cell", new Packages.com.google.refine.commands.recon.ReconJudgeOneCellCommand());
    RS.registerCommand(module, "recon-judge-similar-cells", new Packages.com.google.refine.commands.recon.ReconJudgeSimilarCellsCommand());
    RS.registerCommand(module, "guess-types-of-column", new Packages.com.google.refine.commands.recon.GuessTypesOfColumnCommand());

    RS.registerCommand(module, "annotate-one-row", new Packages.com.google.refine.commands.row.AnnotateOneRowCommand());
    RS.registerCommand(module, "annotate-rows", new Packages.com.google.refine.commands.row.AnnotateRowsCommand());
    RS.registerCommand(module, "remove-rows", new Packages.com.google.refine.commands.row.RemoveRowsCommand());
    RS.registerCommand(module, "reorder-rows", new Packages.com.google.refine.commands.row.ReorderRowsCommand());

    RS.registerCommand(module, "get-expression-language-info", new Packages.com.google.refine.commands.expr.GetExpressionLanguageInfoCommand());
    RS.registerCommand(module, "get-expression-history", new Packages.com.google.refine.commands.expr.GetExpressionHistoryCommand());
    RS.registerCommand(module, "log-expression", new Packages.com.google.refine.commands.expr.LogExpressionCommand());
    RS.registerCommand(module, "preview-expression", new Packages.com.google.refine.commands.expr.PreviewExpressionCommand());

    RS.registerCommand(module, "get-preference", new Packages.com.google.refine.commands.GetPreferenceCommand());
    RS.registerCommand(module, "get-all-preferences", new Packages.com.google.refine.commands.GetAllPreferencesCommand());
    RS.registerCommand(module, "set-preference", new Packages.com.google.refine.commands.SetPreferenceCommand());
    RS.registerCommand(module, "open-workspace-dir", new Packages.com.google.refine.commands.OpenWorkspaceDirCommand());
}

function registerOperations() {
    var OR = Packages.com.google.refine.operations.OperationRegistry;
    
    OR.registerOperation(module, "text-transform", Packages.com.google.refine.operations.cell.TextTransformOperation);
    OR.registerOperation(module, "mass-edit", Packages.com.google.refine.operations.cell.MassEditOperation);
    
    OR.registerOperation(module, "multivalued-cell-join", Packages.com.google.refine.operations.cell.MultiValuedCellJoinOperation);
    OR.registerOperation(module, "multivalued-cell-split", Packages.com.google.refine.operations.cell.MultiValuedCellSplitOperation);
    OR.registerOperation(module, "fill-down", Packages.com.google.refine.operations.cell.FillDownOperation);
    OR.registerOperation(module, "blank-down", Packages.com.google.refine.operations.cell.BlankDownOperation);
    OR.registerOperation(module, "transpose-columns-into-rows", Packages.com.google.refine.operations.cell.TransposeColumnsIntoRowsOperation);
    OR.registerOperation(module, "transpose-rows-into-columns", Packages.com.google.refine.operations.cell.TransposeRowsIntoColumnsOperation);
    
    OR.registerOperation(module, "column-addition", Packages.com.google.refine.operations.column.ColumnAdditionOperation);
    OR.registerOperation(module, "column-removal", Packages.com.google.refine.operations.column.ColumnRemovalOperation);
    OR.registerOperation(module, "column-rename", Packages.com.google.refine.operations.column.ColumnRenameOperation);
    OR.registerOperation(module, "column-move", Packages.com.google.refine.operations.column.ColumnMoveOperation);
    OR.registerOperation(module, "column-split", Packages.com.google.refine.operations.column.ColumnSplitOperation);
    OR.registerOperation(module, "column-addition-by-fetching-urls", Packages.com.google.refine.operations.column.ColumnAdditionByFetchingURLsOperation);
    OR.registerOperation(module, "column-reorder", Packages.com.google.refine.operations.column.ColumnReorderOperation);
    
    OR.registerOperation(module, "row-removal", Packages.com.google.refine.operations.row.RowRemovalOperation);
    OR.registerOperation(module, "row-star", Packages.com.google.refine.operations.row.RowStarOperation);
    OR.registerOperation(module, "row-flag", Packages.com.google.refine.operations.row.RowFlagOperation);
    OR.registerOperation(module, "row-reorder", Packages.com.google.refine.operations.row.RowReorderOperation);
    
    OR.registerOperation(module, "recon", Packages.com.google.refine.operations.recon.ReconOperation);
    OR.registerOperation(module, "recon-mark-new-topics", Packages.com.google.refine.operations.recon.ReconMarkNewTopicsOperation);
    OR.registerOperation(module, "recon-match-best-candidates", Packages.com.google.refine.operations.recon.ReconMatchBestCandidatesOperation);
    OR.registerOperation(module, "recon-discard-judgments", Packages.com.google.refine.operations.recon.ReconDiscardJudgmentsOperation);
    OR.registerOperation(module, "recon-match-specific-topic-to-cells", Packages.com.google.refine.operations.recon.ReconMatchSpecificTopicOperation);
    OR.registerOperation(module, "recon-judge-similar-cells", Packages.com.google.refine.operations.recon.ReconJudgeSimilarCellsOperation);
}

/*
 *  This optional function is invoked from the module's init() Java function.
 */
function init() {
    // Packages.java.lang.System.err.println("Initializing by script " + module);
    
    registerCommands();
    registerOperations();
    
    var RC = Packages.com.google.refine.model.recon.ReconConfig;
    RC.registerReconConfig(module, "standard-service", Packages.com.google.refine.model.recon.StandardReconConfig);
    
    ClientSideResourceManager.addPaths(
        "index/scripts",
        module,
        [
            "externals/jquery-1.4.2.min.js",
            "externals/jquery-ui/jquery-ui-1.8.custom.min.js",
            "externals/date.js",
            "scripts/util/string.js",
            "scripts/index.js"
        ]
    );
    
    ClientSideResourceManager.addPaths(
        "index/styles",
        module,
        [
            "externals/jquery-ui/css/ui-lightness/jquery-ui-1.8.custom.css",
            "styles/jquery-ui-overrides.less",
            "styles/common.less",
            "styles/pure.css",
            "styles/index.less"
        ]
    );
    
    ClientSideResourceManager.addPaths(
        "project/scripts",
        module,
        [
            "externals/jquery-1.4.2.min.js",
            "externals/jquery.cookie.js",
            "externals/jquery.eventstack-0.3.js",
            "externals/suggest/suggest-1.2.1.min.js",
            "externals/jquery-ui/jquery-ui-1.8.custom.min.js",
            "externals/imgareaselect/jquery.imgareaselect.js",
            "externals/date.js",
            
            "scripts/project.js",
            
            "scripts/util/misc.js",
            "scripts/util/url.js",
            "scripts/util/string.js",
            "scripts/util/ajax.js",
            "scripts/util/menu.js",
            "scripts/util/dialog.js",
            "scripts/util/dom.js",
            "scripts/util/custom-suggest.js",

            "scripts/widgets/histogram-widget.js",
            "scripts/widgets/slider-widget.js",

            "scripts/project/browsing-engine.js",
            "scripts/project/history-panel.js",
            "scripts/project/process-panel.js",
            "scripts/project/extension-bar.js",
            "scripts/project/summary-bar.js",
            "scripts/project/exporters.js",
            "scripts/project/scripting.js",

            "scripts/facets/list-facet.js",
            "scripts/facets/range-facet.js",
            "scripts/facets/timerange-facet.js",
            "scripts/facets/scatterplot-facet.js",
            "scripts/facets/text-search-facet.js",

            "scripts/views/data-table/data-table-view.js",
            "scripts/views/data-table/cell-ui.js",
            "scripts/views/data-table/column-header-ui.js",
            "scripts/views/data-table/menu-facets.js",
            "scripts/views/data-table/menu-edit-cells.js",
            "scripts/views/data-table/menu-edit-column.js",
            "scripts/views/data-table/menu-reconcile.js",

            "scripts/reconciliation/recon-manager.js",
            "scripts/reconciliation/recon-dialog.js",
            "scripts/reconciliation/freebase-query-panel.js",
            "scripts/reconciliation/standard-service-panel.js",
            
            "scripts/dialogs/expression-preview-dialog.js",
            "scripts/dialogs/clustering-dialog.js",
            "scripts/dialogs/scatterplot-dialog.js",
            "scripts/dialogs/templating-exporter-dialog.js",
            "scripts/dialogs/column-reordering-dialog.js"
        ]
    );
    
    ClientSideResourceManager.addPaths(
        "project/styles",
        module,
        [
            "externals/suggest/css/suggest-1.2.1.min.css",
            "externals/jquery-ui/css/ui-lightness/jquery-ui-1.8.custom.css",
            "externals/imgareaselect/css/imgareaselect-default.css",

            "styles/jquery-ui-overrides.less",
            "styles/common.less",
            "styles/pure.css",
    
            "styles/util/menu.less",
            "styles/util/dialog.less",
            "styles/util/custom-suggest.less",

            "styles/project.less",
            "styles/project/sidebar.less",
            "styles/project/facets.less",
            "styles/project/process.less",
            
            "styles/widgets/histogram-widget.less",
            "styles/widgets/slider-widget.less",
            
            "styles/views/data-table-view.less",
            
            "styles/dialogs/expression-preview-dialog.less",
            "styles/dialogs/clustering-dialog.less",
            "styles/dialogs/scatterplot-dialog.less",
            "styles/dialogs/column-reordering-dialog.less",
            
            "styles/reconciliation/recon-dialog.less",
            "styles/reconciliation/standard-service-panel.less"
        ]
    );
    
    ClientSideResourceManager.addPaths(
        "preferences/scripts",
        module,
        [
            "externals/jquery-1.4.2.min.js",
            "externals/jquery.cookie.js",
            "externals/suggest/suggest-1.2.min.js",
            "externals/jquery-ui/jquery-ui-1.8.custom.min.js",
            "externals/imgareaselect/jquery.imgareaselect.js",
            "externals/date.js",
            "scripts/preferences.js"
        ]
    );
    ClientSideResourceManager.addPaths(
        "preferences/styles",
        module,
        [
            "externals/suggest/css/suggest-1.2.min.css",
            "externals/jquery-ui/css/ui-lightness/jquery-ui-1.8.custom.css",
            "styles/jquery-ui-overrides.less",
            "styles/common.less",
            "styles/pure.css"
        ]
    );
}

/*
 * This is the function that is invoked by Butterfly
 */
function process(path, request, response) {
    if (path == "wirings.js") {
        var wirings = butterfly.getWirings(request);
        butterfly.sendString(
            request, 
            response, 
            "var ModuleWirings = " + butterfly.toJSONString(wirings) + ";", 
            encoding, 
            "text/javascript"
        );
    } else {
        if (path == "/" || path == "") {
            path = "/index";
        } else if (path.endsWith("/")) {
            path = path.substring(0, path.length - 1);
        }
    
        var slash = path.lastIndexOf("/");
        var lastSegment = slash >= 0 ? path.substring(slash + 1) : path;
        
        if (path.endsWith("-bundle.js")) {
            lastSegment = lastSegment.substring(0, lastSegment.length - "-bundle.js".length);
            
            response.setContentType("text/javascript");
            response.setCharacterEncoding(encoding);
            
            var output = response.getWriter();
            try {
                var paths = ClientSideResourceManager.getPaths(lastSegment + "/scripts");
                for each (var qualifiedPath in paths) {
                    var input = null;
                    try {
                        var url = qualifiedPath.module.getResource(qualifiedPath.path);
                        var urlConnection = url.openConnection();
                        
                        input = new Packages.java.io.BufferedReader(
                            new Packages.java.io.InputStreamReader(urlConnection.getInputStream()));
                            
                        output.write("/* ===== "); 
                        output.write(qualifiedPath.fullPath); 
                        output.write(" ===== */\n\n");
                        
                        Packages.org.apache.commons.io.IOUtils.copy(input, output);
                        
                        output.write("\n\n");
                    } catch (e) {
                        // silent
                    } finally {
                        if (input != null) input.close();
                    }
                }
            } catch (e) {
                // silent
            } finally {
                butterfly.responded();
            }
            return true;
        } else {
            if (lastSegment in templatedFiles) {
                var context = {};
                context.projectID = request.getParameter("project");
                
                var styles = ClientSideResourceManager.getPaths(lastSegment + "/styles");
                var styleInjection = [];
                for each (var qualifiedPath in styles) {
                    styleInjection.push(
                        '<link type="text/css" rel="stylesheet" href="' + qualifiedPath.fullPath + '" />');
                }
                context.styleInjection = styleInjection.join("\n");
                
                if (bundle) {
                    context.scriptInjection = '<script type="text/javascript" src="' + path + '-bundle.js"></script>';
                } else {
                    var scripts = ClientSideResourceManager.getPaths(lastSegment + "/scripts");
                    var scriptInjection = [];
                    for each (var qualifiedPath in scripts) {
                        scriptInjection.push(
                            '<script type="text/javascript" src="' + qualifiedPath.fullPath + '"></script>');
                    }
                    context.scriptInjection = scriptInjection.join("\n");
                }
            
                send(request, response, path + ".vt", context);
            }
        }
    }
}

function send(request, response, template, context) {
    butterfly.sendTextFromTemplate(request, response, context, template, encoding, html);
}