/*---------------------------------------------------------------------------------------------
 *  Copyright (c) Microsoft Corporation. All rights reserved.
 *  Licensed under the MIT License. See License.txt in the project root for license information.
 *--------------------------------------------------------------------------------------------*/
'use strict';
var vscode = require("vscode");
var jsonc_parser_1 = require("jsonc-parser");
var path = require("path");
var decoration = vscode.window.createTextEditorDecorationType({
    color: '#b1b1b1'
});
function activate(context) {
    //keybindings.json command-suggestions
    context.subscriptions.push(registerKeybindingsCompletions());
    // launch.json decorations
    context.subscriptions.push(vscode.window.onDidChangeActiveTextEditor(function (editor) { return updateLaunchJsonDecorations(editor); }, null, context.subscriptions));
    context.subscriptions.push(vscode.workspace.onDidChangeTextDocument(function (event) {
        if (vscode.window.activeTextEditor && event.document === vscode.window.activeTextEditor.document) {
            updateLaunchJsonDecorations(vscode.window.activeTextEditor);
        }
    }, null, context.subscriptions));
    updateLaunchJsonDecorations(vscode.window.activeTextEditor);
}
exports.activate = activate;
function registerKeybindingsCompletions() {
    var commands = vscode.commands.getCommands(true);
    return vscode.languages.registerCompletionItemProvider({ pattern: '**/keybindings.json' }, {
        provideCompletionItems: function (document, position, token) {
            var location = jsonc_parser_1.getLocation(document.getText(), document.offsetAt(position));
            if (location.path[1] === 'command') {
                var range_1 = document.getWordRangeAtPosition(position) || new vscode.Range(position, position);
                return commands.then(function (ids) { return ids.map(function (id) { return newCompletionItem(id, range_1); }); });
            }
        }
    });
}
function newCompletionItem(text, range) {
    var item = new vscode.CompletionItem(JSON.stringify(text));
    item.kind = vscode.CompletionItemKind.Value;
    item.textEdit = {
        range: range,
        newText: item.label
    };
    return item;
}
function updateLaunchJsonDecorations(editor) {
    if (!editor || path.basename(editor.document.fileName) !== 'launch.json') {
        return;
    }
    var ranges = [];
    var addPropertyAndValue = false;
    var depthInArray = 0;
    jsonc_parser_1.visit(editor.document.getText(), {
        onObjectProperty: function (property, offset, length) {
            // Decorate attributes which are unlikely to be edited by the user.
            // Only decorate "configurations" if it is not inside an array (compounds have a configurations property which should not be decorated).
            addPropertyAndValue = property === 'version' || property === 'type' || property === 'request' || property === 'compounds' || (property === 'configurations' && depthInArray === 0);
            if (addPropertyAndValue) {
                ranges.push(new vscode.Range(editor.document.positionAt(offset), editor.document.positionAt(offset + length)));
            }
        },
        onLiteralValue: function (value, offset, length) {
            if (addPropertyAndValue) {
                ranges.push(new vscode.Range(editor.document.positionAt(offset), editor.document.positionAt(offset + length)));
            }
        },
        onArrayBegin: function (offset, length) {
            depthInArray++;
        },
        onArrayEnd: function (offset, length) {
            depthInArray--;
        }
    });
    editor.setDecorations(decoration, ranges);
}

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