// -*- mode: js; js-indent-level: 4; indent-tabs-mode: nil -*-

const Clutter = imports.gi.Clutter;
const GLib = imports.gi.GLib;
const GnomeBluetoothApplet = imports.gi.GnomeBluetoothApplet;
const GnomeBluetooth = imports.gi.GnomeBluetooth;
const Lang = imports.lang;
const St = imports.gi.St;

const Main = imports.ui.main;
const MessageTray = imports.ui.messageTray;
const PanelMenu = imports.ui.panelMenu;
const PopupMenu = imports.ui.popupMenu;

const Indicator = new Lang.Class({
    Name: 'BTIndicator',
    Extends: PanelMenu.SystemIndicator,

    _init: function() {
        this.parent();

        this._indicator = this._addIndicator();
        this._indicator.icon_name = 'bluetooth-active-symbolic';

        // The Bluetooth menu only appears when Bluetooth is in use,
        // so just statically build it with a "Turn Off" menu item.
        this._item = new PopupMenu.PopupSubMenuMenuItem(_("Bluetooth"), true);
        this._item.icon.icon_name = 'bluetooth-active-symbolic';
        this._item.menu.addAction(_("Turn Off"), Lang.bind(this, function() {
            this._applet.killswitch_state = GnomeBluetooth.KillswitchState.SOFT_BLOCKED;
        }));
        this._item.menu.addSettingsAction(_("Bluetooth Settings"), 'gnome-bluetooth-panel.desktop');
        this.menu.addMenuItem(this._item);

        this._applet = new GnomeBluetoothApplet.Applet();
        this._applet.connect('devices-changed', Lang.bind(this, this._sync));
        this._sync();

        this._applet.connect('pincode-request', Lang.bind(this, this._pinRequest));
        this._applet.connect('confirm-request', Lang.bind(this, this._confirmRequest));
        this._applet.connect('auth-request', Lang.bind(this, this._authRequest));
        this._applet.connect('auth-service-request', Lang.bind(this, this._authServiceRequest));
        this._applet.connect('cancel-request', Lang.bind(this, this._cancelRequest));
    },

    _sync: function() {
        let connectedDevices = this._applet.get_devices().filter(function(device) {
            return device.connected;
        });
        let nDevices = connectedDevices.length;

        let on = nDevices > 0;
        this._indicator.visible = on;
        this._item.actor.visible = on;

        if (on)
            this._item.status.text = ngettext("%d Connected Device", "%d Connected Devices", nDevices).format(nDevices);
    },

    _ensureSource: function() {
        if (!this._source) {
            this._source = new MessageTray.Source(_("Bluetooth"), 'bluetooth-active');
            this._source.policy = new MessageTray.NotificationApplicationPolicy('gnome-bluetooth-panel');
            Main.messageTray.add(this._source);
        }
    },

    _authRequest: function(applet, device_path, name, long_name) {
        this._ensureSource();
        this._source.notify(new AuthNotification(this._source, this._applet, device_path, name, long_name));
    },

    _authServiceRequest: function(applet, device_path, name, long_name, uuid) {
        this._ensureSource();
        this._source.notify(new AuthServiceNotification(this._source, this._applet, device_path, name, long_name, uuid));
    },

    _confirmRequest: function(applet, device_path, name, long_name, pin) {
        this._ensureSource();
        this._source.notify(new ConfirmNotification(this._source, this._applet, device_path, name, long_name, pin));
    },

    _pinRequest: function(applet, device_path, name, long_name, numeric) {
        this._ensureSource();
        this._source.notify(new PinNotification(this._source, this._applet, device_path, name, long_name, numeric));
    },

    _cancelRequest: function() {
        this._source.destroy();
    }
});

const AuthNotification = new Lang.Class({
    Name: 'AuthNotification',
    Extends: MessageTray.Notification,

    _init: function(source, applet, device_path, name, long_name) {
        this.parent(source,
                    _("Bluetooth"),
                    _("Authorization request from %s").format(name),
                    { customContent: true });
        this.setResident(true);

        this._applet = applet;
        this._devicePath = device_path;
        this.addBody(_("Device %s wants to pair with this computer").format(long_name));

        this.addAction('allow', _("Allow"));
        this.addAction('deny', _("Deny"));

        this.connect('action-invoked', Lang.bind(this, function(self, action) {
            if (action == 'allow')
                this._applet.agent_reply_confirm(this._devicePath, true);
            else
                this._applet.agent_reply_confirm(this._devicePath, false);
            this.destroy();
        }));
    }
});

const AuthServiceNotification = new Lang.Class({
    Name: 'AuthServiceNotification',
    Extends: MessageTray.Notification,

    _init: function(source, applet, device_path, name, long_name, uuid) {
        this.parent(source,
                    _("Bluetooth"),
                    _("Authorization request from %s").format(name),
                    { customContent: true });
        this.setResident(true);

        this._applet = applet;
        this._devicePath = device_path;
        this.addBody(_("Device %s wants access to the service '%s'").format(long_name, uuid));

        this.addAction('always-grant', _("Always grant access"));
        this.addAction('grant', _("Grant this time only"));
        this.addAction('reject', _("Reject"));

        this.connect('action-invoked', Lang.bind(this, function(self, action) {
            switch (action) {
            case 'always-grant':
                this._applet.agent_reply_auth_service(this._devicePath, true, true);
                break;
            case 'grant':
                this._applet.agent_reply_auth_service(this._devicePath, true, false);
                break;
            case 'reject':
            default:
                this._applet.agent_reply_auth_service(this._devicePath, false, false);
            }
            this.destroy();
        }));
    }
});

const ConfirmNotification = new Lang.Class({
    Name: 'ConfirmNotification',
    Extends: MessageTray.Notification,

    _init: function(source, applet, device_path, name, long_name, pin) {
        this.parent(source,
                    _("Bluetooth"),
                    /* Translators: argument is the device short name */
                    _("Pairing confirmation for %s").format(name),
                    { customContent: true });
        this.setResident(true);

        this._applet = applet;
        this._devicePath = device_path;
        this.addBody(_("Device %s wants to pair with this computer").format(long_name));
        this.addBody(_("Please confirm whether the Passkey '%06d' matches the one on the device.").format(pin));

        /* Translators: this is the verb, not the noun */
        this.addAction('matches', _("Matches"));
        this.addAction('does-not-match', _("Does not match"));

        this.connect('action-invoked', Lang.bind(this, function(self, action) {
            if (action == 'matches')
                this._applet.agent_reply_confirm(this._devicePath, true);
            else
                this._applet.agent_reply_confirm(this._devicePath, false);
            this.destroy();
        }));
    }
});

const PinNotification = new Lang.Class({
    Name: 'PinNotification',
    Extends: MessageTray.Notification,

    _init: function(source, applet, device_path, name, long_name, numeric) {
        this.parent(source,
                    _("Bluetooth"),
                    _("Pairing request for %s").format(name),
                    { customContent: true });
        this.setResident(true);

        this._applet = applet;
        this._devicePath = device_path;
        this._numeric = numeric;
        this.addBody(_("Device %s wants to pair with this computer").format(long_name));
        this.addBody(_("Please enter the PIN mentioned on the device."));

        this._entry = new St.Entry();
        this._entry.connect('key-release-event', Lang.bind(this, function(entry, event) {
            let key = event.get_key_symbol();
            if (key == Clutter.KEY_Return) {
                if (this._canActivateOkButton())
                    this._ok();
                return true;
            } else if (key == Clutter.KEY_Escape) {
                this._cancel();
                return true;
            }
            return false;
        }));
        this.addActor(this._entry);

        let okButton = this.addAction(_("OK"), Lang.bind(this, this._ok));
        this.addAction(_("Cancel"), Lang.bind(this, this._cancel));

        okButton.reactive = this._canActivateOkButton();
        this._entry.clutter_text.connect('text-changed', Lang.bind(this, function() {
            okButton.reactive = this._canActivateOkButton();
        }));
    },

    _ok: function() {
        if (this._numeric) {
            let num = parseInt(this._entry.text);
            if (isNaN(num)) {
                // user reply was empty, or was invalid
                // cancel the operation
                num = -1;
            }
            this._applet.agent_reply_passkey(this._devicePath, num);
        } else {
            this._applet.agent_reply_pincode(this._devicePath, this._entry.text);
        }
        this.destroy();
    },

    _cancel: function() {
        if (this._numeric)
            this._applet.agent_reply_passkey(this._devicePath, -1);
        else
            this._applet.agent_reply_pincode(this._devicePath, null);
        this.destroy();
    },

    _canActivateOkButton: function() {
        // PINs have a fixed length of 6
        if (this._numeric)
            return this._entry.clutter_text.text.length == 6;
        else
            return true;
    }
});