"use strict";

var emacs = require('./keyboard/emacs');
var EditSession = require("./edit_session").EditSession;
var Editor = require("./editor").Editor;
var MockRenderer = require("./test/mockrenderer").MockRenderer;
var Range = require("./range").Range;
var MultiSelect = require("./multi_select").MultiSelect;
var assert = require("./test/assertions");
var IncrementalSearch = require("./incremental_search").IncrementalSearch;

require("./multi_select");

var editor, iSearch;
function testRanges(str, ranges) {
    ranges = ranges || editor.selection.getAllRanges();
    assert.equal(ranges + "", str + "");
}

// force "rerender"
function callHighlighterUpdate() {
    var session = editor.session,
        ranges = [],
        mockMarkerLayer = {
            drawSingleLineMarker: function(_, markerRanges) {
                ranges = ranges.concat(markerRanges);
            }
        };
    session.$isearchHighlight.update([], mockMarkerLayer, session, {
        firstRow: 0, lastRow: session.getRowLength()});
    return ranges;
}

module.exports = {

    name: "ACE incremental_search.js",

    setUp: function() {
        var session = new EditSession(["abc123", "xyz124"]);
        editor = new Editor(new MockRenderer(), session);
        new MultiSelect(editor);
        iSearch = new IncrementalSearch();
    },

    "test: keyboard handler setup" : function() {
        iSearch.activate(editor);
        assert.equal(editor.getKeyboardHandler(), iSearch.$keyboardHandler);
        iSearch.deactivate();
        assert.notEqual(editor.getKeyboardHandler(), iSearch.$keyboardHandler);
    },

    "test: isearch highlight setup" : function() {
        var sess = editor.session;
        iSearch.activate(editor);
        iSearch.highlight('foo');
        var highl = sess.$isearchHighlight.id;
        assert.ok(sess.$isearchHighlight, 'session has no isearch highlighter');
        assert.equal(sess.getMarkers()[highl.id], highl.id, 'isearch highlight not in markers');
        iSearch.deactivate();
        iSearch.activate(editor);
        iSearch.highlight('bar');
        var highl2 = sess.$isearchHighlight.id;
        assert.equal(highl2, highl, 'multiple isearch highlights');
    },

    "test: find simple text incrementally" : function() {
        iSearch.activate(editor);
        var range = iSearch.addString('1'), // "1"
            highlightRanges = callHighlighterUpdate();
        testRanges("Range: [0/3] -> [0/4]", [range]);
        testRanges("Range: [0/3] -> [0/4],Range: [1/3] -> [1/4]", highlightRanges);

        range = iSearch.addString('2'); // "12"
        highlightRanges = callHighlighterUpdate();
        testRanges("Range: [0/3] -> [0/5]", [range]);
        testRanges("Range: [0/3] -> [0/5],Range: [1/3] -> [1/5]", highlightRanges);

        range = iSearch.addString('3'); // "123"
        highlightRanges = callHighlighterUpdate();
        testRanges("Range: [0/3] -> [0/6]", [range]);
        testRanges("Range: [0/3] -> [0/6]", highlightRanges);

        range = iSearch.removeChar(); // "12"
        highlightRanges = callHighlighterUpdate();
        testRanges("Range: [0/3] -> [0/5]", [range]);
        testRanges("Range: [0/3] -> [0/5],Range: [1/3] -> [1/5]", highlightRanges);
    },

    "test: forward / backward" : function() {
        iSearch.activate(editor);
        iSearch.addString('1'); iSearch.addString('2');
        var range = iSearch.next();
        testRanges("Range: [1/3] -> [1/5]", [range]);

        range = iSearch.next(); // nothing to find
        testRanges("", [range]);

        range = iSearch.next({backwards: true}); // backwards
        testRanges("Range: [1/5] -> [1/3]", [range]);
    },

    "test: cancelSearch" : function() {
        iSearch.activate(editor);
        iSearch.addString('1'); iSearch.addString('2');
        var range = iSearch.cancelSearch(true);
        testRanges("Range: [0/0] -> [0/0]", [range]);

        iSearch.addString('1'); range = iSearch.addString('2');
        testRanges("Range: [0/3] -> [0/5]", [range]);
    },

    "test: failing search keeps pos" : function() {
        iSearch.activate(editor);
        iSearch.addString('1'); iSearch.addString('2');
        var range = iSearch.addString('x');
        testRanges("", [range]);
        assert.position(editor.getCursorPosition(), 0, 5);
    },

    "test: backwards search" : function() {
        editor.moveCursorTo(1,0);
        iSearch.activate(editor, true);
        iSearch.addString('1'); var range = iSearch.addString('2');
        testRanges("Range: [0/5] -> [0/3]", [range]);
        assert.position(editor.getCursorPosition(), 0, 3);
    },

    "test: forwards then backwards, same result, reoriented range" : function() {
        iSearch.activate(editor);
        iSearch.addString('1'); var range = iSearch.addString('2');
        testRanges("Range: [0/3] -> [0/5]", [range]);
        assert.position(editor.getCursorPosition(), 0, 5);

        range = iSearch.next({backwards: true});
        testRanges("Range: [0/5] -> [0/3]", [range]);
        assert.position(editor.getCursorPosition(), 0, 3);
    },

    "test: reuse prev search via option" : function() {
        iSearch.activate(editor);
        iSearch.addString('1'); iSearch.addString('2');
        assert.position(editor.getCursorPosition(), 0, 5);
        iSearch.deactivate();

        iSearch.activate(editor);
        iSearch.next({backwards: false, useCurrentOrPrevSearch: true});
        assert.position(editor.getCursorPosition(), 1, 5);
    },

    "test: don't extend selection range if selection is empty" : function() {
        iSearch.activate(editor);
        iSearch.addString('1'); iSearch.addString('2');
        testRanges("Range: [0/5] -> [0/5]", [editor.getSelectionRange()]);
    },

    "test: extend selection range if selection exists" : function() {
        iSearch.activate(editor);
        editor.selection.selectTo(0, 1);
        iSearch.addString('1'); iSearch.addString('2');
        testRanges("Range: [0/0] -> [0/5]", [editor.getSelectionRange()]);
    },

    "test: extend selection in emacs mark mode" : function() {
        var emacs = require('./keyboard/emacs');
        editor.keyBinding.addKeyboardHandler(emacs.handler);
        emacs.handler.commands.setMark.exec(editor);
        iSearch.activate(editor);
        iSearch.addString('1'); iSearch.addString('2');
        testRanges("Range: [0/0] -> [0/5]", [editor.getSelectionRange()]);
    }

};


if (typeof module !== "undefined" && module === require.main) {
    require("asyncjs").test.testcase(module.exports).exec();
}
