/*
 *  Licensed to the Apache Software Foundation (ASF) under one
 *  or more contributor license agreements.  See the NOTICE file
 *  distributed with this work for additional information
 *  regarding copyright ownership.  The ASF licenses this file
 *  to you under the Apache License, Version 2.0 (the
 *  "License"); you may not use this file except in compliance
 *  with the License.  You may obtain a copy of the License at
 *
 *    http://www.apache.org/licenses/LICENSE-2.0
 *
 *  Unless required by applicable law or agreed to in writing,
 *  software distributed under the License is distributed on an
 *  "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 *  KIND, either express or implied.  See the License for the
 *  specific language governing permissions and limitations
 *  under the License.
 */
package groovy.console.ui

import groovy.inspect.Inspector
import groovy.swing.table.TableSorter
import groovy.swing.SwingBuilder

import javax.swing.WindowConstants
import java.awt.FlowLayout

import static groovy.inspect.Inspector.MEMBER_DECLARER_IDX
import static groovy.inspect.Inspector.MEMBER_EXCEPTIONS_IDX
import static groovy.inspect.Inspector.MEMBER_MODIFIER_IDX
import static groovy.inspect.Inspector.MEMBER_NAME_IDX
import static groovy.inspect.Inspector.MEMBER_ORIGIN_IDX
import static groovy.inspect.Inspector.MEMBER_PARAMS_IDX
import static groovy.inspect.Inspector.MEMBER_TYPE_IDX
import static groovy.inspect.Inspector.MEMBER_VALUE_IDX

/**
 * A little GUI to show some of the Inspector capabilities.
 * Starting this script opens the ObjectBrowser on "some String".
 * Use it in groovysh or groovyConsole to inspect your object of interest with:
 * <code>
 * ObjectBrowser.inspect(myObject)
 * </code>.
 */
class ObjectBrowser {

    def inspector
    def swing, frame, fieldTable, methodTable, itemTable, mapTable

    static void main(args) {
        inspect('some String')
    }

    static void inspect(objectUnderInspection) {
        def browser = new ObjectBrowser()
        browser.inspector = new Inspector(objectUnderInspection)
        browser.run()
    }

    void run() {
        swing = new SwingBuilder()

        frame = swing.frame(title: 'Groovy Object Browser', location: [200, 200],
                size: [800, 600], pack: true, show: true,
                iconImage: swing.imageIcon(Console.ICON_PATH).image,
                defaultCloseOperation: WindowConstants.DISPOSE_ON_CLOSE) {

            menuBar {
                menu(text: 'Help') {
                    menuItem { action(name: 'About', closure: this.&showAbout) }
                }
            }
            panel {
                borderLayout()
                panel(name: 'Class Info',
                        border: emptyBorder([5, 10, 5, 10]),
                        constraints: NORTH) {
                    flowLayout(alignment: FlowLayout.LEFT)
                    def props = inspector.classProps
                    def classLabel = '<html>' + props.join('<br>')
                    label(classLabel)
                }
                tabbedPane(constraints: CENTER) {
                    if (inspector.object instanceof Collection) {
                        scrollPane(name: ' Collection data ') {
                            itemTable = table {
                                int i = 0
                                def data = inspector.object.collect { val -> [i++, val] }
                                tableModel(list: data) {
                                    closureColumn(header: 'Index', read: { it[0] })
                                    closureColumn(header: 'Value', read: { it[1] })
                                }
                            }
                        }
                    }
                    if (inspector.object instanceof Map) {
                        scrollPane(name: ' Map data ') {
                            itemTable = table {
                                int i = 0
                                def data = inspector.object.collect { key, val -> [i++, key, val] }
                                tableModel(list: data) {
                                    closureColumn(header: 'Index', read: { it[0] })
                                    closureColumn(header: 'Key', read: { it[1] })
                                    closureColumn(header: 'Value', read: { it[2] })
                                }
                            }
                        }
                    }
                    scrollPane(name: ' Properties (includes public fields) ') {
                        fieldTable = table {
                            def data = Inspector.sort(inspector.propertyInfo.toList())
                            tableModel(list: data) {
                                closureColumn(header: 'Name', read: { it[MEMBER_NAME_IDX] })
                                closureColumn(header: 'Value', read: { it[MEMBER_VALUE_IDX] })
                                closureColumn(header: 'Type', read: { it[MEMBER_TYPE_IDX] })
                                closureColumn(header: 'Origin', read: { it[MEMBER_ORIGIN_IDX] })
                                closureColumn(header: 'Modifier', read: { it[MEMBER_MODIFIER_IDX] })
                                closureColumn(header: 'Declarer', read: { it[MEMBER_DECLARER_IDX] })
                            }
                        }
                    }
                    scrollPane(name: ' (Meta) Methods ') {
                        methodTable = table {
                            def data = Inspector.sort(inspector.methods.toList())
                            data.addAll(Inspector.sort(inspector.metaMethods.toList()))

                            tableModel(list: data) {
                                closureColumn(header: 'Name', read: { it[MEMBER_NAME_IDX] })
                                closureColumn(header: 'Params', read: { it[MEMBER_PARAMS_IDX] })
                                closureColumn(header: 'Type', read: { it[MEMBER_TYPE_IDX] })
                                closureColumn(header: 'Origin', read: { it[MEMBER_ORIGIN_IDX] })
                                closureColumn(header: 'Modifier', read: { it[MEMBER_MODIFIER_IDX] })
                                closureColumn(header: 'Declarer', read: { it[MEMBER_DECLARER_IDX] })
                                closureColumn(header: 'Exceptions', read: { it[MEMBER_EXCEPTIONS_IDX] })
                            }
                        }
                    }
                }
            }
        }

        // Add a bit of formatting
        addSorter(itemTable)
        addSorter(mapTable)
        addSorter(fieldTable)
        addSorter(methodTable)

        frame.toFront()
    }

    void addSorter(table) {
        if (table != null) {
            def sorter = new TableSorter(table.model)
            table.model = sorter
            sorter.addMouseListenerToHeaderInTable(table)
        }
    }

    void showAbout(EventObject evt) {
        def pane = swing.optionPane()
        // work around GROOVY-1048
        def version = GroovySystem.version
        pane.setMessage('An interactive GUI to explore object capabilities.\nVersion ' + version)
        def dialog = pane.createDialog(frame, 'About Groovy Object Browser')
        dialog.show()
    }
}
