require 'sitepage'

require 'Qt4'

class MainWindow < Qt::MainWindow

    attr_reader :sites

    attr_reader :trayIcon

    def initialize( parent )

        super( parent )

        @sites = Array.new

        setWindowTitle( tr( "RPProj" ) )

        createActions

        createMenus

        createUI

        createTrayIcon

        loadSettings

    end

    def addSite( sitepage )

        @sites.push( sitepage )

        @pages.addTab( sitepage, sitepage.name )

        @settingsMenu.addAction( sitepage.configureAction )

        sitepage.refreshView

    end

    def closeEvent( event )

        saveSettings

        super event

    end

    def toggleVisibility

        if isVisible then

            hide

        else

            show

        end

    end

    def trayIconActivated( reason )

        if reason == Qt::SystemTrayIcon.Trigger then

            toggleVisibility

        end

    end

    def createAccount

        name = ""

        while name.empty? or accountExists( name ) do

            name = Qt::InputDialog::getText( self, tr( "Select Name" ),

                                             tr( "Please input a name for the new account:") )

            if name.nil? then

                return

            end

        end

        addSite( SitePage.new( name, self ) )

    end

    def accountExists( name )

        @sites.each do |site|

            if site.name.equal?( name ) then

                return true

            end

        end

        return false

    end

    def saveAndQuit

        saveSettings

        Qt::Application.instance.quit

    end

    private

    def createActions

        @addAccountAction = Qt::Action.new( tr( "New Account" ), self )

        @addAccountAction.connect( SIGNAL(:triggered) ) { createAccount }

        @createIssueAction = Qt::Action.new( tr( "Create Issue" ), self )

        @createIssueAction.shortcut = 'Ctrl+N'

        @createIssueAction.connect( SIGNAL(:triggered) ) { createNewIssue }

        @editCurrentIssueAction = Qt::Action.new( tr( "Edit Selected Issue" ), self )

        @editCurrentIssueAction.shortcut = 'Ctrl+E'

        @editCurrentIssueAction.connect( SIGNAL(:triggered) ) { editCurrentIssue }

        @viewCurrentIssueAction = Qt::Action.new( tr( "View Issue Details" ), self )

        @viewCurrentIssueAction.shortcut = 'Enter'

        @viewCurrentIssueAction.connect( SIGNAL(:triggered) ) { viewCurrentIssue }

        @quitAppAction = Qt::Action.new( tr( "Quit" ), self )

        @quitAppAction.shortcut = 'Ctrl+Q'

        @quitAppAction.connect( SIGNAL(:triggered) ) { saveAndQuit }

    end

    def createMenus

        @fileMenu = Qt::Menu.new( tr( "File" ), self )

        @fileMenu.addAction( @addAccountAction )

        @fileMenu.addSeparator

        @fileMenu.addAction( @viewCurrentIssueAction )

        @fileMenu.addSeparator

        @fileMenu.addAction( @createIssueAction )

        @fileMenu.addAction( @editCurrentIssueAction )

        @fileMenu.addSeparator

        @fileMenu.addAction( @quitAppAction )

        @settingsMenu = Qt::Menu.new( tr( "Settings" ), self )

        menuBar.addMenu( @fileMenu )

        menuBar.addMenu( @settingsMenu )

        @trayMenu = Qt::Menu.new( self )

        @trayMenu.addAction( @quitAppAction )

    end

    def createUI

        @pages = Qt::TabWidget.new( self )

        @mainWidget = Qt::Widget.new( self )

        @mainLayout = Qt::HBoxLayout.new

        @mainLayout.addWidget( @pages )

        @mainWidget.setLayout( @mainLayout )

        setCentralWidget( @mainWidget )

    end

    def createTrayIcon

        @trayIcon = Qt::SystemTrayIcon.new( Qt::Icon.new( Qt::Application.instance.windowIcon ) )

        @trayIcon.setToolTip( tr( "RPProj - Project Management Client" ) )

        @trayIcon.connect( SIGNAL('activated(QSystemTrayIcon::ActivationReason)') ) do |r|

            trayIconActivated(r)

        end

        @trayIcon.contextMenu = @trayMenu

        @trayIcon.show

    end

    def saveSettings

        settings = Qt::Settings.new

        settings.beginGroup( "MainWindow" )

        settings.setValue( "geometry", Qt::Variant::fromValue( saveGeometry ) )

        settings.setValue( "state", Qt::Variant::fromValue( saveState.to_s ) )

        settings.endGroup

        settings.beginGroup( "Accounts" )

        @sites.each do |page|

            settings.beginGroup( page.name )

            settings.remove( "" )

            s = page.adapter.saveSettings

            s.keys.each do |k|

                settings.setValue( k, Qt::Variant::fromValue( s[k] ) )

            end

            settings.endGroup

        end

        settings.endGroup

        settings.sync

    end

    def loadSettings

        settings = Qt::Settings.new

        settings.beginGroup( "MainWindow" )

         restoreGeometry( settings.value( "geometry" ).toByteArray )

         restoreState( settings.value( "state" ).toByteArray )

        settings.endGroup

        settings.beginGroup( "Accounts" )

        settings.childGroups.each do |acc|

            site = SitePage.new( acc, self )

            s = {}

            settings.beginGroup( acc )

            settings.childKeys.each do |k|

                s[k] = settings.value( k )

            end

            settings.endGroup

            site.adapter.restoreSettings( s )

            addSite( site )

        end

        settings.endGroup

    end

    def createNewIssue

        if not @pages.currentWidget.nil? then

            @pages.currentWidget.createIssueAction.trigger

        end

    end

    def editCurrentIssue

        if not @pages.currentWidget.nil? then

            @pages.currentWidget.editCurrentAction.trigger

        end

    end

    def viewCurrentIssue

        if not @pages.currentWidget.nil? then

            @pages.currentWidget.viewCurrentAction.trigger

        end

    end

end