/* Search_Snippets.bsh
 * IJ BAR: https://github.com/tferr/Scripts#scripts
 *
 * BeanShell script that instructs the built-in 'Search...' command (Plugins>Utilies>Search...) to
 * search inside plugins/BAR/Snippets/ for clipboard contents.
 * Caveats: The search string cannot contain quotes. Also, if it contains space(s) it cannot contain
 * square brackets. This is because ImageJ uses these characters to delimit macro values passed as
 * part of the run() function's second argument.
 * NB: The 'Search' command is actually a macro[1]. This script would actually be simpler if itself
 * would have been written using the same ImageJ macro language. Writing it in BeanShell exemplifies
 * how different scripting languages can cooperate in ImageJ.
 *
 * [1] https://github.com/imagej/imagej1/blob/master/macros/Search.txt
 * Tiago Ferreira, 2014.10.27
 */

import ij.IJ;
import ij.gui.GenericDialog;

import java.awt.Toolkit;
import java.awt.datatransfer.Clipboard;
import java.awt.datatransfer.DataFlavor;
import java.awt.datatransfer.Transferable;
import java.io.File;


/* Options */
boolean searchContents = true;
boolean caseInsensitive = true;
String PATH = IJ.getDirectory("plugins") +"Scripts/BAR/Snippets/";
String URL = "https://github.com/tferr/Scripts/tree/master/Snippets#snippets";


/* Returns text from the system clipboard or an empty string if no text was found */
String getClipboardContents() {
    Toolkit toolkit = Toolkit.getDefaultToolkit();
    Clipboard clipboard = toolkit.getSystemClipboard();
    String s = null;
    try {
        s = (String)clipboard.getData(DataFlavor.stringFlavor);
    } catch (Exception e) {
        s = "";
    }
    return s;
}


File f = new File(PATH); // Any slash will be converted into platform-specific File.separator
if (f.exists() && f.isDirectory()) {

    // Get string from clipboard
    String searchString = getClipboardContents();

    // Build prompt
    GenericDialog gd = new GenericDialog("Search Snippets Directory");
    gd.addStringField("_", searchString, 25);
    gd.addCheckbox("Search contents", searchContents);
    gd.addCheckbox("Ignore case", caseInsensitive);
    gd.addHelp(URL);
    gd.setHelpLabel("BAR");
    gd.showDialog();

    // Retrieve options from prompt
    searchString = gd.getNextString();
    searchContents = gd.getNextBoolean();
    caseInsensitive = gd.getNextBoolean();

    // Concatenate all options into a single string
    String options = "_=["+ searchString +"] ";
    if (searchContents) options+= "search_contents ";
    if (caseInsensitive) options+= "ignore ";
    options += "search=Choose... choose=["+ PATH +"]";

    // Pass the options string to Plugins>Utilies>Search...
    IJ.run("Search...", options);
    
} else {

    // Acknowledge that directory could not be found
    IJ.error("Search not performed", "Not a valid directory:\n"+ f);
    return;

}